2024年10月25日发(作者：求千柳)

目录

1）MIT-C8D8 (40k)

2) MIT-C8D8(33K)

3）SC50560-001，003P

4）M50462

5）M50119P-01

6）M50119L

7）RECS80

8）M3004

9）LC7464M

10）LC7461-C13

11）IRT1250C5D6-01

12）Gemini-C6-A

13）Gemini-C6

14) Gemini-C17(31.36K)-1

15）KONKA KK-Y261

16）PD6121G-F

17）DATA-6BIT

18）Custum-6BIT

19）M9148-1

20）SC3010 RC-5

21) M50560-1(40K)

22) SC50560-B1

23）C50560-002P

24）M50119P-01

25）M50119P-1

26）M50119P

27）IRT1250C5D6-02

28）HTS-C5D6P

29）Gemini-C17

30）Gemini-C17 -2

31）data6bit-a

32）data6bit-c

33）X-Sat

34）Philips RECS-80

35）Philips RC-MM

36）Philips RC-6

37）Philips RC-5

38）Sony SIRC

39）Sharp

40）Nokia NRC17

41）NEC

42）JVC

43）ITT

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44）SAA3010 RC-5（36K）

45）SAA3010 RC-5（38K）

46）NEC2-E2

47) NEC-E3

48) RC-5x

49) NEC1-X2

50) _pid:$0060

51) UPD1986C

52) UPD1986C-A

53) UPD1986C-C

54) MV500-01

55) MV500-02

56) Zenith S10

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1) MIT-C8D8（40K）

MIT-C8D8（40K）是一种常见的红外遥控编码格式。该格式出现在万能遥控器ZC-18A(600-917)

中。

Features 基本特点

1，8位地址码，8位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：40.0 KHZ；

4，逻辑位时间长度是1.215ms或2.436 ms。

Modulation 调制

逻辑“0”（Logical“0”）是由935us的无载波间隔和280us的40KHZ载波组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由280us的40KHZ载波和2156us的无载波间隔组成。

Protocol 协议

从上图中可看到，MIT-C8D8（40K）一帧码序列是由8位地址码，8位数据码和结束码组

成。.

长按键不放,发出的码波形序列如下图：即将整个波形以周期44.78ms进行重复。

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2) MIT-C8D8(33K)

MIT-C8D8(33K) 是一种常见的编码格式。

该格式来源于OMEGA万能遥控器,码组号为0138及祝成万能遥控器ZC-18A码组号为644、

735、736.

Features 基本特点：

1、8位地址码，8位数据码；

2、脉宽调制方式（PWM）；

3、载波：33KHZ；

4、逻辑位的时间长度是1.215ms或2.436ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由280us的33KHZ载波和935us的无载波间隔组成；

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由280us的33KHZ载波和2156us的无载波间隔组成。

Protocol 协议

从上图可以看到MIT-C8D8(33K) 一帧码序列是由8位地址码，8位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期50.1ms进行重复

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（图中

3) SC50560-001，003P 分割码(未有数据标注)

SC50560-001，003P是一种常见的红外遥控编码格式。该格式出现在CL311，URC-8910，

RM-123C，RM-139S的062码组，ZC-18A（600-917），ZC-18A（400-481），RM-301C，VT3620A，

VT3630，RM-402C的TV-012码组

Features 基本特点

1，引导码，8位地址码，分割码(未有数据标注)，8位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是2.08ms或1.04ms。

Modulation 调制

逻辑“0”（Logical“0”）是由520us的38KHZ载波和520us的无载波间隔组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由520us的38KHZ载波和1560us的无载波间隔组成。

Protocol 协议

从上图中可看到，SC50560-001，003P一帧码序列是由引导码(8ms的载波和4ms的间隔) ，

8位地址码，分割码，8位数据码和结束码组成。

长按键不放,发出的码波形序列如下图：即将整个波形以周期120.02ms进行重复。

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4) M50462

M50462是一种常见的红外遥控编码格式。该格式出现在

（600-917），RM-301C，VT3620A，VT3630，RM-402C

Features 基本特点

RM-123C，RM-139S，ZC-18A

1，8位地址码，8位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：38 KHZ；

4，逻辑位时间长度是2.059ms或1.04ms。

Modulation 调制

逻辑“0”（Logical“0”）是由260us的38KHZ载波和780us的无载波间隔组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由260us的38KHZ载波和1799us的无载波间隔组成。

Protocol 协议

从上图中可看到，M50462一帧码序列是由8位地址码，8位数据码和结束码组成.

长按键不放,发出的码波形序列如下图：即将整个波形以周期45ms进行重复。

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5) M50119P-01（42K）分割码(未有数据标注)

M50119P-01（42K）是一种常见的红外遥控编码格式。该格式出现在URC-8910#CBL-0009，

ZC-18A(600-917)的736码组，ZC-18A(400-481)，VT3630的SAT-001码组。

Features 基本特点

1，数据帧（4位地址码，6位数据码，分割码，4位地址码相同码，6位数据码相同码，结

束码），重复帧（用户码相同码，结束码）

2，脉宽调制方式（PWM）；

3，载波：41.8 KHZ；

4，逻辑位时间长度是3.868ms或1.934ms。

Modulation 调制

逻辑“0”（Logical“0”）是由967us的41.8KHZ载波和967us的无载波间隔组成。（图中表

示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由967us的41.8KHZ载波和2901us的无载波间隔组成。

Protocol 协议

从上图中可看到，M50119P-01（42K）两帧码序列是由数据帧（4位地址码，6位数据码，

分割码，4位地址码相同码，6位数据码相同码，结束码），重复帧（地址码相同码，结束码）

长按键不放,后续发出的波形如下:

长按键不放发出的码波形序列如下图.就是将重复帧波形以周期62.855ms进行重复.

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6)M50119L

M50119L是一种常见的红外遥控编码格式。该格式出现在万能遥控器CL311，

URC-8910#VCR-0041，INTER DIGI-SAT，VT3630中

Features 基本特点

1，3位地址码，7位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：37.9 KHZ；

4，逻辑位时间长度是1.04ms或2.08ms。

Modulation 调制

逻辑“0”（Logical“0”）是由260us的37.9KHZ载波和780us的无载波间隔组成。（图中表

示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由260us的37.9KHZ载波和1820us的无载波间隔组成。

Protocol 协议

从上图中可看到，M50119L一帧码序列是由3位地址码，7位数据码和结束码组成

长按键不放,发出的码波形序列如下图：即将整个波形以周期25.5ms进行重复。

.

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7) RECS80（68）

RECS80（68）是一种常见的红外遥控编码格式。该格式来源于URC8910的CD-0764码组。

Features 基本特点

1，2位控制码，3位地址码，6位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：33KHZ；

4，逻辑位时间长度是5.76ms或8.64ms。

Modulation 调制

逻辑“0”（Logical“0”）是由160us的33KHZ载波和5600us的无载波间隔)组成。（图中表

示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由160us的33KHZ载波和8480us的无载波间隔组成。

Protocol 协议

从上图中可看到，RECS80（68）一帧码序列是由2位控制码，3位地址码，6位数据码，

结束码组成的。

长按键不放,发出的码波形序列如下图：整个波形以周期138.3ms进行重复。

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8)M3004 Carrier

M3004 Carrier是一种常见的红外遥控编码格式。该格式出现在遥控器CL311，RM-123C，

RM-139S#148，ZC-18A（600-917），ZC-18A（400-481），RM-301C，INTER-DIGI-SAT，

VT3620A，VT3630，RM-402C#TV-060中。

Features 基本特点

1，引导码，1位翻转码，3位地址码，6位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是5.06ms或7.59ms。

Modulation 调制

逻辑“0”（Logical“0”）是由141us的38KHZ载波和4919us的无载波间隔组成。（图中表

示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由141us的38KHZ载波和7449us的无载波间隔组成。

Protocol 协议

从上图中可看到，M3004 Carrier一帧码序列是由1位引导码, 1位翻转码，3位地址码，6

位数据码，结束码组成的。

长按键不放,发出的码波形序列如下图：整个波形以周期121.651ms进行重复。

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9) LC7464M 校验码怎么算的

LC7464M是一种常见的红外遥控编码格式。该格式出现在万能遥控器CL311，URC-8910，

RM-139S，ZC-18A（600-917），ZC-18A（400-481），VT3620A，VT3630。

Features 基本特点

1，引导码，15位地址码，4位校验码，4位地址码2，8位数据码，8位校验码，结束码；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是1.68ms或0.84ms。

Modulation 调制

逻辑“0”（Logical“0”）是由420us的38KHZ载波和420us的无载波间隔组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由420us的38KHZ载波和1260us的无载波间隔组成。

Protocol 协议

从上图中可看到，LC7464M一帧码序列是由引导码(3.38ms的载波和1.69ms的间隔), 15位

地址码，4位校验码，4位地址码2，8位数据码，8位校验码，结束码组成。

长按键不放,发出的码波形序列如下图：整个波形以82.97ms的周期进行重复。

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10) LC7461-C13

LC7461-C13是一种常见的红外遥控编码格式。该格式出现在万能遥控器CL311，URC-8910，

RM-123C，RM-139S#101，ZC-18A（600-917），RM-301C，VT3630，RM-402C的TV-131

码组。

Features 基本特点

1，数据帧（引导码，13位地址码，13位地址码-反码，8位数据码，8位数据码反码，结束

码），重复帧；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是2.24ms或1.12ms。

Modulation 调制

逻辑“0”（Logical“0”）是由560us的38KHZ载波和560us的无载波间隔)组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由560us的38KHZ载波和1680us的无载波间隔组成。

Protocol 协议

数据帧：

从上图中可看到，LC7461-C13一帧码序列是由引导码(9-ms的载波和4.5ms的间隔), 13位

地址码,13位地址码-反码，8位数据码，8位数据码反码，结束码组成。

重复帧：由结束码组成。

长按键不放,发出的后续波形如下图：

其发出的整个码波形序列如下图：由重复帧开始，以周期108.11ms进行重复。

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11) IRT1250C5D6-01（0Hz）

IRT1250C5D6-01（0Hz）是一种常见的红外遥控编码格式。该格式出现在万能遥控器

中。

Features 基本特点

1，引导码，5位地址码，6位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：0.0 KHZ；

4，逻辑位时间长度是0.116ms或0.384ms。

VT3620A

Modulation 调制

逻辑“0”（Logical“0”）是由16us的0.0KHZ载波和160us的无载波间隔组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由16us的0.0KHZ载波和368us的无载波间隔组成。

Protocol 协议

从上图中可看到，IRT1250C5D6-01（0Hz）一帧码序列是由引导码(0.016 ms的载波和0.545ms

的间隔), 5位地址码，6位数据码，结束码（16，-543，16，-593136）us组成.

长按键不放,发出的码波形序列如下图：即将整个波形以周期596.208ms进行重复。

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12) Gemini-C6-A（40K）

Gemini-C6-A（40K）是一种常见的红外遥控编码格式。该格式出现在万能遥控器VT3630的

SAT-034码组。

Features 基本特点

1，地址帧（引导码，7位地址码2，结束码），数据帧（引导码相同码，7位数据码，结束码），

地址帧相同帧，数据帧相同帧

2，脉宽调制方式（PWM）；

3，载波：40.0 KHZ；

4，逻辑位时间长度是1.05ms。

Modulation 调制

逻辑“0”（Logical“0”）是由525us的无载波间隔和525us的40KHZ载波组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由525us的40KHZ载波和525us的无载波间隔组成。

Protocol 协议

从上图中可看到，Gemini-C6-A（40K）由四帧码组成：

地址帧码序列由引导码(0.525ms的载波和2.625ms的间隔),7位地址码和结束码组成；

数据帧码序列由引导码相同码(0.525ms的载波和2.625ms的间隔),7位数据码和结束码组成；

地址帧相同帧同地址帧；

数据帧相同帧同数据帧。

长按键不放,发出的码波形序列如下：

其整个码波形序列如下图，就是将第三、第四帧波形以周期69.3ms进行重复.

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13) Gemini-C6（31.36）

Gemini-C6（31.36）是一种常见的红外遥控编码格式。该格式出现在万能遥控器CL311与

VT3620A中。

Features 基本特点

1，引导码，7位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：31.0 KHZ；

4，逻辑位时间长度是0.992ms或0.992ms。

Modulation 调制

逻辑“0”（Logical“0”）是由496us的无载波间隔和496us的31KHZ载波组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由496us的31KHZ载波和496us的无载波间隔组成。

Protocol 协议

从上图中可看到，Gemini-C6（31.36）一帧码序列是由引导码(0.53ms的载波和2，65ms的

间隔),7位和结束码组成。

长按键不放,发出的码波形序列如下图：即将整个波形以周期90.724ms进行重复。

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14) Gemini-C17(31.36K)-1

Gemini-C17(31.36K)-1是一种常见的红外遥控编码格式。该格式来源于CL311。

Features 基本特点

1，引导帧（引导码，10位地址码，结束码），地址帧（引导码相同码，10位地址码2，结束

码），引导帧相同帧，数据帧（引导码相同码，10位数据码，结束码），引导帧相同帧；

2，脉宽调制方式（PWM）；

3，载波：30.4KHZ；

4，逻辑位时间长度是1.06ms。

Modulation 调制

逻辑“0”（Logical“0”）是由530us的30.4KHZ载波和530us的无载波间隔)组成。（图中表

示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由530us的无载波间隔和530us的30.4KHZ载波组成。

Protocol 协议

从上图中可看到，Gemini-C17(31.36K)-1帧码其依次为：

引导帧码序列是由引导码(0.53ms的载波和2.65ms的间隔), 10位地址码与结束码（20.6ms）

组成；

用户帧码序列是由引导码-相同码(0.53ms的载波和2.65ms的间隔), 10位地址码2与结束码

(102.5ms)组成；

引导帧-相同帧码与引导帧码相同；

数据帧码序列是由引导码-相同码(0.53ms的载波和2.65ms的间隔), 10位数据码与结束码

(117.14ms)组成；

引导帧-相同帧码与引导帧码相同；

长按键不放,后续发出的波形如下:

其整个码波形序列如下图.就是将第四、第五帧波形以周期165.3ms进行重复.

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15) KONKA KK-Y261

KONKA KK-Y261是一种常见的红外遥控编码格式。该格式来源于RM-123C，RM-139S的

113码组，RM-301C，RM-402C的204码组。

Features 基本特点

1，引导码，8位地址码，8位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是3ms或2ms。

Modulation 调制

逻辑“0”（Logical“0”）是由500us的38KHZ载波和1500us的无载波间隔)组成。（图中表

示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由500us的38KHZ载波和2500us的无载波间隔组成。

Protocol 协议

从上图中可看到，KONKA KK-Y261一帧码序列是由引导码(3ms的载波和3ms的间隔), 8

位地址码, 8位数据码，结束码组成.

长按键不放,发出的码波形序列如下图：即将整个波形以周期6.6ms进行重复。

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16) PD6121G-F

PD6121G-F是一种常见的红外遥控编码格式。

Features 基本特点

1，引导码，8位地址码，8位地址码2，8位数据码，8位数据码反码；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是2.256ms或1.128ms。

Modulation 调制

逻辑“0”（Logical“0”）是由564us的38KHZ载波和564us的无载波间隔)组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由564us的38KHZ载波和1692us的无载波间隔组成。

Protocol 协议

从上图中可看到，PD6121G-F一帧码序列是由引导码(9.024ms的载波和4.512ms的间隔), 8

位地址码,8位地址码2，8位数据码，8位数据码反码组成。

长按键不放,发出的码波形序列如下图：即将整个波形以周期108ms进行重复。

18

17) DATA-6BIT

DATA-6BIT是一种常见种常见的红外遥控编码格式。该格式来源于RM-301C，RM-402C

（195）。

Features 基本特点

1，6位数据码；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是3.802ms或1.98ms。

Modulation 调制

逻辑“0”（Logical“0”）是由440us的38KHZ载波和1540us的无载波间隔)组成。

示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由440us的38KHZ载波和3362us的无载波间隔组成。

Protocol 协议

从上图中可看到，DATA-6BIT一帧码序列仅是由6位数据码组成。

长按键不放,发出的码波形序列如下图：即将第一帧波形以周期28ms进行重复。

19

（图中表

18) CUSTUM6BIT

Custum-6BIT是一种常见的红外遥控编码格式。该格式出现在CL311，URC-8910，RM-123C，

RM-139S#148，ZC-18A（600-917），ZC-18A（400-481），RM-301C，INTER-DIGI-SAT，

VT3620A，VT3630，RM-402C。

Features 基本特点

1，6位数据码；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是3.98ms或1.99ms。

20

19)M9148-1

M9148-1是一种常见的编码格式。

Features 基本特点：

1、3位地址码，1位控制码，8位数据码；

2、脉宽调制方式（PWM）；

3、载波：38.168KHZ；

4、逻辑位的时间长度是

Modulation 调制：

1.848ms

1、逻辑“0”（Logical“0”）是由462us的38.168KHZ载波和1386us的无载波间隔组成；（图

中表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由1386us的38.168KHZ载波和462us的无载波间隔组成。

Protocol 协议

从上图可以看到M9148-1一帧码序列是由3位地址码，1位控制码，8位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期56.023ms进行重复

21

20) SC3010RC-5

SC3010 RC-5是一种常见的编码格式。

该格式来源于众合万能遥控器RM-139S，码组号为013、208、215、216、218及万能遥控器

祝成ZC-18A，码组号为682、684、685、854、691、709.

Features 基本特点：

1、2位控制码，1为翻转码，5位地址码，6位数据码；

2、脉宽调制方式（PWM）；

3、载波：38KHZ；

4、逻辑位的时间长度是1.688ms

Modulation 调制：

1、逻辑“0”（Logical“0”）是由844us的38 KHZ载波和844us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由844us的38KHZ载波和844us的无载波间隔组成。

Protocol 协议

从上图可以看到SC3010 RC-5一帧码序列是由2位控制码、1位翻转码、5位地址码、6位

数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期127.156ms进行重复

22

21) M50560-1(40K)

M50560-1(40K) 是一种常见的编码格式。

该格式来源于万能遥控器众合RM139-S码组号为040、069、076、083、068、125、127、268

及万能遥控器众合RM-33C码组号为0016、0067、0072、0073.

Features 基本特点：

1、8位地址码，8位数据码；

2、脉宽调制方式（PWM）；

3、载波：40KHZ；

4、逻辑位的时间长度是1ms或2ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由500us的40KHZ载波和500us的无载波间隔组成；

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由500us的40KHZ载波和1500us的无载波间隔组成。

Protocol 协议

从上图可以看到M50560-1(40K) 一帧码序列是由8位地址码，8位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期67.8ms进行重复。

23

（图中

22) SC50560-B1

SC50560-B1是一种常见的编码格式。

Features 基本特点：

1、5位数据码；

2、脉宽调制方式（PWM）；

3、载波：38KHZ；

4、逻辑位的时间长度是2.6ms或4.68ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由520us的38KHZ载波和2080us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由520us的38KHZ载波和4160us的无载波间隔组成。

Protocol 协议：

从上图可以看到SC50560-B1一帧码序列是由5位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期120ms进行重复。

24

23)C50560-002P

C50560-002P是一种常见的编码格式。

该格式来源于视贝万能DVB遥控器，码组号为195.

Features 基本特点：

1、8位地址码，8位数据码；

2、脉宽调制方式（PWM）；

3、载波：38KHZ；

4、逻辑位的时间长度是1.04ms或2.08ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由520us的38KHZ载波和520us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由520us的38KHZ载波和1560us的无载波间隔组成。

Protocol 协议

从上图可以看到M50560-002P 一帧码序列是由8位地址码，8位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期360.06ms进行重复。

25

24)M50119P-01(38K)

M50119P-01(38K) 是一种常见的编码格式。

Features 基本特点：

1、4位地址码、4位地址码的相同码、6位数据码、6位数据码的相同码；

2、脉宽调制方式（PWM）；

3、载波：38KHZ；

4、逻辑位的时间长度是1.934ms或3.868ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由967us的38KHZ载波和967us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由967us的38KHZ载波和2901us的无载波间隔组成。

Protocol 协议

从上图可以看到M50119P-01(38K)一数据帧码序列是由4位地址码、6位数据码、4位地址

码相同码、6位数据码相同码，一重复帧由4位地址码相同码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期385.156ms进行重复。

26

25)M50119P-1(40K)

M50119P-1(40K) 是一种常见的编码格式。

该格式来源于OMEGA万能遥控器码组号为0041.

Features 基本特点：

1、3位地址码，7位数据码；

2、脉宽调制方式（PWM）；

3、载波：40KHZ；

4、逻辑位的时间长度是1ms或2ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由500us的40KHZ载波和500us的无载波间隔组成；

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由500us的40KHZ载波和1500us的无载波间隔组成。

Protocol 协议

从上图可以看到M50119P-1(40K)一帧码序列是由3位地址码、7位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期27.5ms进行重复。

27

（图中

26）M50119P

M50119P是一种常见的编码格式。

该格式来源于OMEGA万能遥控器码组号为0384及众合万能遥控器RM-139S码组号为041.

Features 基本特点：

1、3位地址码，7位数据码；

2、脉宽调制方式（PWM）；

3、载波：37.91KHZ；

4、逻辑位的时间长度是1ms或2ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由500us的37.9KHZ载波和500us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由500us的37.9KHZ载波和1500us的无载波间隔组成。

Protocol 协议

从上图可以看到M50119P一帧码序列是由3位地址码、7位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期30ms进行重复。

28

27）IRT1250C5D6-02(0Hz)

IRT1250C5D6-02(0Hz)是一种常见的编码格式。

Features 基本特点：

1、5位地址码，6位数据码；

2、脉宽调制方式（PWM）；

3、载波：无载波；

4、逻辑位的时间长度是0.238ms或0.496ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由16us的无载波和224us的无载波间隔组成；（图中表示的是

无载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由16us的36KHZ载波和480us的无载波间隔组成。

Protocol 协议

从上图可以看到IRT1250C5D6-02(0Hz)一帧码序列是由引导码（0.016ms的无载波和0.732ms

的间隔），5位地址码、6位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期597.251ms进行重复。

29

28）HTS-C5D6P

HTS-C5D6P是一种常见的编码格式。该格式来源于OMEGA万能遥控器0277、0321、0444.

Features 基本特点：

1、5位地址码，6位数据码，1位校验码；

2、脉宽调制方式（PWM）；

3、载波：38KHZ；

4、逻辑位的时间长度是1.496ms或2.992或4.624ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由136us的38KHZ载波和1360us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由136us的38KHZ载波和2856us的无载波间隔组成。

3、逻辑“3”（Logical“3”）是由136us的38KHZ载波和4488us的无载波间隔组成。

Protocol 协议

从上图可以看到HTS-C5D6P一帧码序列是引导码（0.136ms的载波和5.962ms的间隔），5

位地址码，6位用户码，1位校验码。

长按键不放，后续发出波形如下：

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期89.381ms进行重复。

30

29）Gemini-C17 (31.36K)

Gemini-C17 (31.36K)是一种常见的编码格式。该格式主要来源于OMEGA万能遥控器，码组

号分别为：0134.、0225、0289、0322、0397、0400、0451、0458、0859。

Features 基本特点：

1、10位地址码，引导码的相同码,10位数据码；

2、脉宽调制方式（PWM）；

3、载波：30.4KHZ；

4、逻辑位的时间长度是1.06ms。

Modulation 调制

1、逻辑“0”（Logical“0”）是由530us的30.4KHZ载波和530us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由530us的30.4KHZ载波和530us的无载波间隔组成。

Protocol 协议

从上图可以看到Gemini-C17 (31.36K)用户帧码序列是由引导码（0.53ms的载波和2.65ms的

间隔），10位地址码，数据帧码序列由引导码的相同码，10位数据码。

长按键不放后，仍发出如下波形：

长按键不放出码的波形序列如下图，就是将第一帧以周期199.97ms进行重复。

31

30）Gemini-C17 (31.36K)-2

Gemini-C17 (31.36K)-2是一种常见的编码格式。该格式主要来源于OMEGA万能遥控器，码

组号分别为：0135、0376。

Features 基本特点：

1、16位地址码，16位数据码；

2、脉宽调制方式（PWM）；

3、载波：31KHZ；

4、逻辑位的时间长度是1.06ms。

Modulation 调制

1、逻辑“0”（Logical“0”）是由530us的31KHZ载波和530us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由530us的31KHZ载波和530us的无载波间隔组成。

Protocol 协议

从上图可以看到Gemini-C17 (31.36K)-2用户帧码序列是由引导码（0.53ms的载波和2.65ms

的间隔），16位地址码，数据帧码序列由引导码（0.53ms的载波和2.65ms的间隔），16位数

据码。

长按键不放后，仍发出如下波形：

长按键不放出码的波形序列如下图，就是将第一帧以周期216.09ms进行重复。

32

31）data6bit-a

data6bit-a是一种常见的编码格式。

该格式来源于祝成万能遥控器ZC-18A码组号673.

Features 基本特点：

1、6位数据码；

2、脉宽调制方式（PWM）；

3、载波：33.3KHZ；

4、逻辑位的时间长度是2.396ms或4.776ms。

Modulation 调制

1、逻辑“0”（Logical“0”）是由576us的33.3KHZ载波和1820us的无载波间隔组成；（图

中表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由576us的33.3KHZ载波和4200us的无载波间隔组成。

Protocol 协议

从上图可以看到data6bit-a一帧码序列是6位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期58.092ms进行重复。

33

32）data6bit-c

Features 基本特点：

1、6位数据码；

2、脉宽调制方式（PWM）；

3、载波：20KHZ；

4、逻辑位的时间长度是2 ms或4ms。

Modulation 调制

1、逻辑“0”（Logical“0”）是由1000us的20KHZ载波和1000us的无载波间隔组成；（图

中表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由1000us的20KHZ载波和3000us的无载波间隔组成。

Protocol 协议

从上图可以看到data6bit-c一帧码序列是6位数据码构成。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期72.5ms进行重复。

34

33）X-Sat Protocol

X-Sat Protocol

I call this the X-Sat protocol because it is used in the X-Sat CDTV 310 Satellite receiver made by

the French company Xcom. This protocol is probably also used in other X-Sat receivers, but I have

no means to verify that. I haven't seen this protocol anywhere else but that doesn't guarantee that it

is unique to the X-Sat brand.

Features

8 bit address and 8 bit command length

Pulse distance modulation

Carrier frequency of 38kHz

Bit time of 1ms or 2ms

Modulation

The X-Sat protocol uses pulse distance encoding of the bits. Each pulse is a 526祍long 38kHz

carrier burst (about 20 cycles). A logical "1" takes 2.0ms to transmit, while a logical "0" is only

1.0ms. The recommended carrier duty cycle is 1/4 or 1/3.

Protocol

The picture above shows a typical pulse train of the X-Sat protocol. With this protocol the LSB is

transmitted first. In this case Address $59 and Command $35 is transmitted. A message is started

by a 8ms AGC burst, which was used to set the gain of the earlier IR receivers. This AGC burst is

then followed by a 4ms space, which is then followed by the Address and Command. A peculiar

property of the X-Sat protocol is the 4ms gap between the address and the command. The total

transmission time is variable because the bit times are variable.

An IR command is repeated 60ms for as long as the key on the remote is held down.

35

34）Philips RECS-80 Protocol 38kHz carrier

This protocol is designed by Philips and transmitters are produced by Philips (SAA3008) and ST

(M3004). Personally I have never seen this protocol being used in real applications. All

information on this page is derived from the data sheet of the Philips SAA3008 and the ST M3004

().

There are 2 small differences between the two competitor ICs. The Philips IC has two modes of

operation, one which is compatible with the ST chip and one which can handle up to 20 sub-system

addresses. The ST chip has the capability of switching the modulation carrier off.

Features

7 or 20 sub-system addresses, 64 commands per sub-system address

1 or 2 toggle bits to avoid key bounce

Pulse distance modulation

Carrier frequency of 38kHz, or unmodulated

Bit time logic "0" is 5.1ms, logic "1" is 7.6ms (@ 455kHz Oscillator)

Command repetition rate 121.5ms (55296 periods of the main oscillator)

Manufacturer Philips & ST

Modulation 1/3 duty cycle

Normal Protocol

The drawing below shows a typical pulse train of a normal RECS-80 message. This example transmits

command 36 to address 4.

Usually the first pulse is a reference pulse, with a value of "1". The receiver may use this bit to determine

the exact bit length.

The next bit is a toggle bit. Its value is toggled whenever a key is released, which results in a different

code every time a new key is pressed. This allows the receiver to discriminate between new key presses

and key repetitions.

Only the ST chip M3004 can disable its carrier, in which case the REF pulse is interpreted as a second

36

toggle bit. The 2-bit toggle value is incremented every time a key is released. Thus only in this mode

there is no real REF pulse.

The next 3 pulses S2 to S0 represent the sub-system address bits, sent with MSB first. This would allow

for 8 different sub-system addresses but both the SAA3008 and the M3004 can only generate 7

sub-system addresses in normal mode. Next come the 6 command bits F to A, also sent with MSB first

allowing for 64 different commands per sub-system address.

The pulse train is terminated by a last pulse, otherwise there is no way to know the duration of bit A.

The entire command is repeated (with unchanged toggle bits) for as long as the key is held down. The

repetition rate is 121.5ms (55296 periods of the oscillator).

Address assignments are a bit odd with this protocol. You can not simply convert the binary value to a

decimal value. Below you see a table explaining the relationship between the binary and decimal

sub-system address values.

Extended Protocol

If you need more than 7 sub-system addresses you can use the extended protocol which allows 13

additional sub-system addresses only if you use the SAA3008. The drawing below shows an extended

message. This example transmits command 36 to address 10.

The first two pulses are a special start sequence. The total duration of these pulses is equal to a normal

"1" period.

The next bit is a toggle bit. Its value is toggled whenever a key is released, which results in a different

code every time a new key is pressed. This allows the receiver to discriminate between new key presses

and key repetitions.

The next 4 pulses S3 to S0 represent the sub-system address bits. This would allow for an additional 16

different sub-system addresses, although the SAA3008 can only generate 13 additional sub-system

addresses in this mode. Next come the 6 command bits F to A, also sent with MSB first.

The pulse train is terminated by a last pulse, otherwise there is no way to know the duration of bit A.

The entire command is repeated (with unchanged toggle bits) for as long as the key is held down. The

repetition rate is 121.5ms (55296 periods of the oscillator).

37

Address assignments are a bit odd with this protocol. You can not simply convert the binary value to a

decimal value. Below you see a table explaining the relationship between the binary and decimal

sub-system address values.

38

35)Philips RC-MM Protocol

RC-MM was defined by Philips to be a multi-media IR protocol to be used in wireless keyboards, mice and

game pads. For these purposes the commands had to be short and have low power requirements.

Whether the protocol is actually used for these purposes today is unknown to me. What I do know is that

some Nokia digital satellite receivers use the protocol (9800 series).

Features

12 bits or 24 bits per message

Pulse position coding, sending 2 bits per IR pulse

Carrier frequency of 36kHz

Message time ranges from 3.5 to 6.5 ms, depending on data content

Repetition time 28 ms (36 messages per second)

Manufacturer Philips

Transmission timing

In this diagram you see the most important transmission times. The message time is the total time of a

message, counting form the beginning of the first pulse until the end of the last pulse of the message.

This time can be 3.5 to 6.5 ms, depending on the data content and protocol used.

The signal free time is the time in which no signal may be sent to avoid confusion with foreign protocols

on the receiver's side. Philips recommends 1 ms for normal use, or 3.36 ms when used together with

RC-5 and RC-6 signals. Since you can never tell whether a user has other remote controls in use

together with an RC-MM controlled device I would recommend always to use a signal free time of 3.36

ms.

The frame time is the sum of the message time and the signal free time, which can add up to just about

10 ms per message.

Finally the repetition time is the recommended repetition time of 27.778 ms, which allows 36 messages

per second. This is only a recommendation and is mainly introduced to allow other devices to send their

commands during the dead times.

No provision is made for data collisions between two or more remote controls! This means that there is

no guarantee that the messages get across.

39

Modulation

With this protocol a 36 kHz carrier frequency is used to transmit the pulses. This helps to increase the noise

immunity at the receiver side and at the same time it reduces power dissipated by the transmitter LED. The

duty cycle of the pulses is 1:3 or 1:4.

Each message is preceded by a header pulse with the duration of 416.7

followed by a space of 277.8

s (15 pulses of the carrier), μ

s (10 periods of the carrier). This header is followed by 12 or 24 bits of data. μ

By changing the distance between the pulses two bits of data are encoded per pulse. Below you find a table

with the encoding times.

Protocol

RCMM comes in 3 different flavours, called modes. Each mode is intended for a particular purpose and

differs mainly in the number of bits which can be used by the application. All data is sent with MSB first.

The 12 bit mode is the basic mode, and allows for 2 address bits and 8 data bits per device family. There

are 3 different device families defined: keyboard, mouse and game pad. The 2 address bits provide for

a way to use more than 1 device simultaneously. The data bits are the actual payload data.

The 24 bit mode, also know as extended mode, allows more data to be transmitted per message. For

instance for multi-lingual keyboards or a high resolution mouse.

In the OEM mode the first 6 bits are always 0 0 0 0 1 1. The next 6 bits are the customer ID (OEM

manufacturer). My observation showed that Nokia used the code 1 0 0 0 0 0 for their 9800 series

digital satellite receivers.

Finally the last 12 bits are the actual pay load data.

40

36) Philips RC-6 Protocol

RC-6 is, as may be expected, the successor of the RC-5 protocol. Like RC-5 the new RC-6 protocol was

also defined by Philips. It is a very versatile and well defined protocol. Because of this versatility its

original definition is many pages long. Here on my page I will only summarize the most important

properties of this protocol.

Features

Different modes of operation, depending on the intended use

Dedicated Philips modes and OEM modes

Variable command length, depending on the operation mode

Bi-phase coding (aka Manchester coding)

Carrier frequency of 36kHz

Manufacturer Philips

Modulation

RC-6 signals are modulated on a 36

between 25% and 50%.

Data is modulated using Manchester coding. This means that each bit (or symbol) will have both a mark

and space in the output signal. If the symbol is a "1" the first half of the bit time is a mark and the second

half is a space. If the symbol is a "0" the first half of the bit time is a space and the second half is a mark.

Please note that this is the opposite of the RC-5 protocol!

The main timing unit is 1t, which is 16 times the carrier period (1/36k * 16 = 444

With RC-6 a total of 5 different symbols are defined:

s). μ

kHz Infra Red carrier. The duty cycle of this carrier has to be

The leader pulse, which has a mark time of 6t (2.666ms) and a space time of 2t (0.889ms).

This leader pulse is normally used to set the gain of the IR receiver unit.

41

Normal bits, which have a mark time of 1t (0.444ms) and space time of 1t (0.444ms). A "0"

and "1" are encoded by the position of the mark and space in the bit time.

Trailer bits, which have a mark time of 2t (0.889ms) and a space time of 2t (0.889ms). Again

a "0" and "1" are encoded by the position of the mark and space in the bit time.

The leader and trailer symbols are only used in the header field of the messages, which will be explained

in more detail below.

RC-6 Mode 0

I can only describe operation mode 0 because I have never actually seen other modes in use than the

one my Philips TV understands. The way I understand it the other modes can vary extremely from mode

0.

Mode 0 is a dedicated Philips Consumer Electronics mode. It allows control of up to 256 independent

devices, with a total of 256 commands per device.

The command is a concatenation of different information. I will cover these different components from

left to right.

Header field

The Header field consists of 3 different components.

First the leader symbol LS is transmitted. Its purpose is to adjust the gain of the IR receiving

unit.

This leader symbol is followed by a start bit SB which always has the value "1". Its purpose is

to calibrate the receiver's timing.

The mode bits mb2 ... mb0 determine the mode, which is 0 in this case, thus all three bits will

be "0".

Finally the header is terminated by the trailer bit TR. Please note that the bit time of this

symbol is twice as long as normal bits! This bit also serves as the traditional toggle bit, which will

42

be inverted whenever a key is released. This allows the receiver to distinguish between a new

key or a repeated key.

Control Field

This field holds 8 bits which are used as address byte. This means that a total of 256 different devices

can be controlled using mode 0 of RC-6.

The msb is transmitted first.

Information Field

The information field holds 8 bits which are used as command byte. This means that each device can

have up to 256 different commands.

The msb is transmitted first.

Signal Free Time

The Signal Free time is a period in which no data may be transmitted (by any device). It is important for

the receiver to detect the signal free time at the end of a message to avoid incorrect reception.

The signal free time is set to 6t, which is 2.666ms.

43

37) Philips RC-5 Protocol

The RC-5 code from Philips is possibly the most used protocol by hobbyists, probably because of the

wide availability of cheap remote controls.

The protocol is well defined for different device types ensuring compatibility with your whole

entertainment system. Lately Philips started using a new protocol called RC-6 which has more features.

Features

5 bit address and 6 bit command length (7 command bits for RC5X)

Bi-phase coding (aka Manchester coding)

Carrier frequency of 36kHz

Constant bit time of 1.778ms (64 cycles of 36 kHz)

Manufacturer Philips

Modulation

The protocol uses bi-phase modulation (or so-called Manchester coding) of a 36kHz IR carrier frequency.

All bits are of equal length of 1.778ms in this protocol, with half of the bit time filled with a burst of the

36kHz carrier and the other half being idle. A logical zero is represented by a burst in the first half of the

bit time. A logical one is represented by a burst in the second half of the bit time. The pulse/pause ratio

of the 36kHz carrier frequency is 1/3 or 1/4 which reduces power consumption.

Protocol

The drawing below shows a typical pulse train of an RC-5 message. This example transmits command

$35 to address $05.

44

The first two pulses are the start pulses, and are both logical "1". Please note that half a bit time is

elapsed before the receiver will notice the real start of the message.

Extended RC-5 uses only one start bit. Bit S2 is transformed to command bit 6, providing for a total of

7 command bits. The value of S2 must be inverted to get the 7th command bit though!

The 3rd bit is a toggle bit. This bit is inverted every time a key is released and pressed again. This way

the receiver can distinguish between a key that remains down, or is pressed repeatedly.

The next 5 bits represent the IR device address, which is sent with MSB first. The address is followed by

a 6 bit command, again sent with MSB first.

A message consists of a total of 14 bits, which adds up to a total duration of 25 ms. Sometimes a

message may appear to be shorter because the first half of the start bit S1 remains idle. And if the last

bit of the message is a logic "0" the last half bit of the message is idle too.

As long as a key remains down the message will be repeated every 114ms. The toggle bit will retain the

same logical level during all of these repeated messages. It is up to the receiver software to interpret

this auto repeat feature.

PS: I had rather a big error on this page for quite some time. For some mysterious reason the LSB and

MSB of the address and command were reversed. I can recall correcting this error before, but somehow

an old version of the description must have sneaked its way up to the internet again

45

38) Sony SIRC Protocol

I've collected and combined some information found on the internet about the Sony SIRC protocol. I

must admit that I have never worked with this particular protocol, so I could not verify that all

information is valid for all situations.

It appears that 3 versions of the protocol exist: 12-bit (described on this page), 15-bit and 20-bit

versions. I can only assume that the 15-bit and 20-bit versions differ in the number of transmitted bits

per command sequence.

Please note that a lot of confusing documentation about the SIRC protocol exists on the internet. At first

I contributed to the confusion by assuming the correctness of the source documents I found myself, until

someone with some SIRC experience informed me about my errors. I double checked his story with a

universal remote control and a digital storage oscilloscope, and found that the bit and word order I

documented were indeed wrong.

The protocol information on this page is according to my own measurements and should be correct now.

Features

12-bit, 15-bit and 20-bit versions of the protocol exist (12-bit described here)

5-bit address and 7-bit command length (12-bit protocol)

Pulse width modulation

Carrier frequency of 40kHz

Bit time of 1.2ms or 0.6ms

Modulation

The SIRC protocol uses a pulse width encoding of the bits. The pulse representing a logical "1" is a 1.2ms

long burst of the 40kHz carrier, while the burst width for a logical "0" is 0.6ms long. All bursts are

separated by a 0.6ms long space interval. The recommended carrier duty-cycle is 1/4 or 1/3.

Protocol

46

The picture above shows a typical pulse train of the SIRC protocol. With this protocol the LSB is

transmitted first. The start burst is always 2.4ms wide, followed by a standard space of 0.6ms. Apart

from signalling the start of a SIRC message this start burst is also used to adjust the gain of the IR

receiver. Then the 7-bit Command is transmitted, followed by the 5-bit Device address. In this case

Address 1 and Command 19 is transmitted.

Commands are repeated every 45ms(measured from start to start) for as long as the key on the remote

control is held down.

47

39) Sharp Protocol

I only have little information on this protocol. It is used in VCRs that are produced by Sharp, that is why

I gave it the name Sharp protocol.

Features

8 bit command, 5 bit address length

Pulse distance modulation

Carrier frequency of 38kHz

Bit time of 1ms or 2ms

Modulation

The Sharp protocol uses a pulse distance encoding of the bits. Each pulse is a 320

burst (about 12 cycles). A logical "1" takes 2ms to transmit, while a logical

s long 38kHz carrier μ

"0" is only 1ms. The

recommended carrier duty-cycle is 1/4 or 1/3.

Protocol

In the picture above you see a typical pulse train sending the command $11 and address $03. The

Address is sent first and consists of 5 bits. Next comes the 8 bit command. In both cases the LSB of the

data is sent first.

I don't exactly know the purpose of the Expansion and Check bits that follow the command. Both bits

were fixed in the example that I had at hand.

I can only guess that the Check bit is used to find out whether we are receiving a normal or inverted

message.

48

One complete command sequence consist of 2 messages. The first transmission is exactly as described

above. The second transmission follows the first one after a delay of 40ms, and basically contains the

same information. The only difference is that all bits, except those from the address field, are inverted.

This way the receiver can verify if the received message is reliable or not.

49

40) Nokia NRC17 Protocol

The Nokia Remote Control protocol uses 17bits to transmit the IR commands, which immediately

explains the name of this protocol.

The protocol was designed for Nokia consumer electronics. It was used during the last few years in which

Nokia produced TV sets and VCRs. Also the sister brands like Finlux and Salora used this protocol.

Nowadays the protocol is mainly used in Nokia satellite receivers and set-top boxes.

Features

8 bit command, 4 bit address and 4 bit sub-code length

Bi-phase coding

Carrier frequency of 38kHz

Constant bit time of 1ms

Battery empty indication possible

Manufacturer Nokia CE

Modulation

The protocol uses bi-phase (or so-called NRZ - Non Return to Zero) modulation of a 38kHz IR carrier

frequency. All bits are of equal length of 1ms in this protocol, with half of the bit time filled with a burst

of the 38kHz carrier and the other half being idle. A logical one is represented by a burst in the first half

of the bit time. A logical zero is represented by a burst in the second half of the bit time.

The pulse/pause ratio of the 38kHz carrier frequency is 1/4 which helps to reduce power consumption.

Protocol

The drawing below shows a typical pulse train of an NRC17 message. This example transmits command

$5C to address $6 sub-code $1.

50

The first pulse is called the pre-pulse, and is made up of a 500

a total of 3 bit times.

s burst followed by a 2.5ms pause, giving μ

Then the Start bit is transmitted, which is always a logic "1". This pulse can be used to calibrate the bit

time on the receiver side, because the burst time is exactly half a bit time.

The next 8 bits represent the IR command, which is sent with LSB first. The command is followed by a

4 bit device address. Finally a 4 bit sub-code is transmitted, which can be seen as an extension to the

address bits.

A message consists of a 3ms pre-pulse and 17 bits of 1ms each. This adds up to a total of 20ms per

message.

Every time a key is pressed on the remote control a start message is transmitted containing a command

of $FE and address/sub-code of $FF. The actual message is sent 40ms later, and is repeated every

100ms for as long as the key on the remote control remains down. When the key is released a stop

message will complete the sequence. The stop message also uses the command $FE and

address/sub-code $FF.

Every sequence can be treated as one single sequence at the receiver's end because of the start and

stop messages. Accidental key bounces are effectively eliminated by this procedure.

The receiver may decide to honour the repeated messages or not. E.g. cursor movements may repeat

for as long as the key is pressed. Numerical inputs better don't allow auto repeat.

Low Battery Indication

The NRC17 protocol provides in a way for the remote control to tell the receiver that the battery capacity is

getting low. The receiver may display a message on the TV screen informing the user that the remote

control's batteries have to be replaced.

The pre-pulse normally is 3ms long. When the battery power is low this pre-pulse will become 4ms long. In

practice only the pre-pulse of the start and stop messages are made longer this way.

51

41)NEC Protocol

To my knowledge the protocol I describe here was developed by NEC. I've seen very similar protocol

descriptions on the internet, and there the protocol is called Japanese Format.

I do admit that I don't know exactly who developed it. What I do know is that it is used in my late VCR

produced by Sanyo and was marketed under the name of Fisher. NEC manufactured the remote control

IC.

This description was taken from the VCR's service manual. Those were the days, when service manuals

were fulled with useful information!

Features

8 bit address and 8 bit command length

Address and command are transmitted twice for reliability

Pulse distance modulation

Carrier frequency of 38kHz

Bit time of 1.125ms or 2.25ms

Modulation

The NEC protocol uses pulse distance encoding of the bits. Each pulse is a 560s long 38kHz carrier burst μ

(about 21 cycles). A logical "1" takes 2.25ms to transmit, while a logical "0" is only half of that, being

1.125ms. The recommended carrier duty-cycle is 1/4 or 1/3.

Protocol

52

The picture above shows a typical pulse train of the NEC protocol. With this protocol the LSB is

transmitted first. In this case Address $59 and Command $16 is transmitted. A message is started by a

9ms AGC burst,

followed

which was used to set the gain of the earlier

space, which is then followed

IR receivers. This AGC burst is then

Address and by a 4.5ms by the Address and Command.

Command are transmitted twice. The second time all bits are inverted and can be used for verification

of the received message. The total transmission time is constant because every bit is repeated with its

inverted length. If you're not interested in this reliability you can ignore the inverted values, or you can

expand the Address and Command to 16 bits each!

A command is transmitted only once, even when the key on the remote control remains pressed. Every

110ms a repeat code is transmitted for as long as the key remains down. This repeat code is simply a

9ms AGC pulse followed by a 2.25ms space and a 560s burst. μ

Extended NEC protocol

The NEC protocol is so widely used that soon all possible addresses were used up. By sacrificing the

address redundancy the address range was extended from 256 possible values to approximately 65000

different values. This way the address range was extended from 8 bits to 16 bits without changing any

other property of the protocol.

The command

commands.

redundancy is still preserved. Therefore each address can still handle 256 different

53

Keep in mind that 256 address values of the extended protocol are invalid because they are in

fact normal NEC protocol addresses. Whenever the low byte is the exact inverse of the high

byte it is not a valid extended address.

54

42) JVC Protocol

although I have seen several different protocols being used in a JVC also has its own IR protocol,

diversity of JVC equipment. This is probably the case for equipment which JVC haven't made themselves.

Most genuine JVC equipment is controlled by the protocol described on this page though.

All information about this protocol was collected using a JVC PTU94023B service remote control and a

digital storage oscilloscope.

Features

8 bit address and 8 bit command length

Pulse distance modulation

Carrier frequency of 38kHz

Bit time of 1.05ms or 2.10ms

Modulation

The JVC protocol uses pulse distance encoding of the bits. Each pulse is a 526s long 38kHz carrier burst μ

(about 20 cycles). A logical "1" takes 2.10ms to transmit (equivalent of 80 cycles), while a logical "0" is

only 1.05ms (equivalent of 40 cycles). The recommended carrier duty cycle is 1/4 or 1/3.

Protocol

The picture above shows a typical pulse train of the JVC protocol. With this protocol the LSB is

transmitted first. In this case Address $59 and Command $35 is transmitted. A message is started by a

8.4ms AGC burst (equivalent of 320 cycles), which was used to set the gain of the earlier IR receivers.

55

This AGC burst is then followed by a 4.2ms space (equivalent of 160 cycles), which is then followed by

the Address and Command. The total transmission time is variable because the bit times are variable.

An IR command is transmitted every 50 to 60ms for as long as the key on the remote is held down. Only

the first command is preceded by the 8.4ms pre-pulse and its accompanying 2.4ms space. This way the

receiver can determine whether a key is pressed for the first time or is held down

56

43) ITT Protocol

The ITT IR protocol is a very old one. It differs from other protocols in that it does not use a modulated

carrier frequency to send the IR messages. A single command is transmitted by a total of 14 pulses with

a width of 10s each. The command is encoded by varying the distance between the pulses. μ

This protocol used to be very reliable and consumes very little power ensuring long battery life. One big

disadvantage of this old protocol is that it sometimes triggers false commands, for instance when you

put a laptop computer with an active IRDA port close to the IR receiver.

Many consumer electronics brands used this protocol in Europe. Among them were: ITT, Greatz,

Schaub-Lorenz, Finlux, Luxor, Salora, Oceanic and later also Nokia, to name but a few.

Features

Only 14 very short IR pulses per message

Pulse distance encoding

Long battery life

4 bit address, 6 bit command length

Self calibrating timing, allowing only simple RC oscillator in the transmitter

Fast communication, a message takes from 1.7ms to 2.7ms to transmit

Manufacturer Intermetall, now Micronas

Protocol

An IR message is transmitted by sending 14 pulses. Each pulse is 10μs long. Three different

s for a logic 0, 200μ

time

intervals between the pulses are used to get the message across: 100

1 and 300μs for the lead-in and lead-out.

s for a logic μ

The preliminary pulse is used by the receiver to set the gain of the amplifier. Then follows a lead-in

interval of 300s, after which the starting pulse is given. The first bit sent is always logic 0, which has μ

s. This start bit can be used to calibrate the timing of the receiver. After the μan interval duration of 100

start bit follow 4 bits (MSB first) that represent the address of the message. After that a total of 6 bits

(MSB first) for the command are transmitted. A trailing pulse should follow this command word. Finally

another 300μs interval follows before the very last pulse is given, functioning as a lead-out.

57

There are a few things the receiving software can check to verify the validity of the received message.

The lead-out interval should be 3 times longer than the start bit time, which has a duration of 100

times should not be off by more than

for logic 1s.

Don't keep waiting for pulses after 360μs after the last received pulse. It's very likely that the

20% of the start bit length for logic 0s, or 2x the start bit length ±

s. Bit μ

transmission is interrupted or no transmission took place at all if you have to wait longer than that.

The preliminary pulse serves only AGC purposes and may be ignored by the receiving software.

Decoding of the message should start at the Start pulse.

Address and Command

A control message is divided into two groups, an address of 4 bits and a command of 6 bits. By

convention the addresses range from 1 to 16, and commands range from 1 to 64. Before the address

and command are sent, 1 is subtracted from both values to get them in the range 0 to 15 and 0 to 63.

Addresses are used in pairs. A pair of addresses is a value of 1 to 8 (0 to 7 actually), and its inverted

counter part 16 to 9 (15 to 8 actually).

The lower value

subsequent

address is transmitted the first time a key is pressed.

value of this first address

The address value of all

This messages will be the inverted until the key is released.

enables the receiver to interpret repeat codes properly. Messages are repeated every 130ms as long as

the key remains pressed.

The Transmitter

Intermetall has developed a few transmitter ICs for use in handsets. Later microcontrollers were used to

facilitate the combination of TV, VCR and SAT remote control in one handset.

The SAA1250 was the first IR controller IC to be released. It can be set to generate 3 different address

pairs. A fourth option is transmitting any of the 16 addresses. That option is rarely used, for it requires

a manual setup procedure every time the power is lost.

The second generation of IR controller ICs are the IRT1250 and IRT1260. These chips are identical in

operation and differ only in the operating voltage. The IRT1250 is intended for 9V operation, whilst the

IRT1260 is designed for 3V.

The footprint of the IRT12x0 is the same as that of the SAA1250. The devices differ in addressing

capability and current drive capacity for the output stage.

Two address pins are available to set the address pair used.

A1A2Addresses

58

H H 1 & 16

L H 3 & 14

H L 7 & 10

L L 4 & 13

Addresses 1 and 16 are always used to control TV sets. Other address pairs are not always uniquely

linked to a particular equipment family.

Receiver

The ITT protocol makes no use of a modulated carrier, so the previously mentioned IR receivers won't

work for this protocol. Intermetall has created the TBA2800 for use with this protocol. It is a highly

sensitive IR detection circuit and should be shielded completely inside a metal box that is connected to

ground, leaving only a small hole just in front of the IR diode.

There is actually not much more to be told about this IC. Just connect it as shown in the diagram and it

should work. You can chose between a normal high going output, and an inverted low going output. It

depends on the rest of your circuitry which one you should use.

In case of excessive interference you could reduce the sensitivity a little by grounding pin 6 via a 10k

resistor.

59

Ω

44) SAA3010 RC-5（36K）

SAA3010 RC-5（36K）是一种常见的红外遥控编码格式。该格式来源于URC-8910

TV-0054码组。

Features 基本特点

1，2位控制码，1位翻转码，5为地址码，6位数据码，结束码

2，脉宽调制方式（PWM）；

3，载波：36KHZ；

4，逻辑位时间长度是1.778ms。

Modulation 调制

逻辑“0”（Logical“0”）是由889us的36KHZ载波和889us的无载波间隔组成。

逻辑“1”（Logical“1”）是由889us的无载波间隔和889us的36KHZ载波组成。

Protocol 协议

从上图中可看到，SAA3010 RC-5（36K）一帧码序列是由2位控制码，1位翻转码，

为地址码，6位数据码，结束码组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期95ms进行重复。

的

5

60

45) SAA3010 RC-5

SAA3010 RC-5是一种常见的红外遥控编码格式。

Features 基本特点

1，2位控制码，1位翻转码，5为地址码，6位数据码，结束码

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是1.778ms。

Modulation 调制

逻辑“0”（Logical“0”）是由889us的38KHZ载波和889us的无载波间隔组成。

逻辑“1”（Logical“1”）是由889us的无载波间隔和889us的38KHZ载波组成。

Protocol 协议

3，从上图中可看到，SAA3010 RC-5一帧码序列是由2位控制码，1位翻转码，5为地

址码，6位数据码，结束码组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期113.79ms进行重复。

61

46) NEC2-E2

NEC2-E2是一种常见的红外遥控编码格式。该格式出现在万能遥控器

的TV-0166码组中。

Features 基本特点

1，引导码，8位地址码，8位地址码2，8位数据码，8位数据码-反码，结束码；

2，脉宽调制方式（PWM）；

3，载波：42.9KHZ；

4，逻辑位时间长度是1.08ms或2.16ms。

Modulation 调制

逻辑“0”（Logical“0”）是由540us的42.9KHZ载波和540us的无载波间隔组成。（图

中表示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由540us的42.9KHZ载波和1620us的无载波间隔组成。

CL311，URC-8910

Protocol 协议

从上图中可看到，NEC2-E2一帧码序列是由引导码(9.024ms的载波和4.512ms的间隔), 8

位地址码，8位地址码2，8位数据码，8位数据码-反码和结束码组成。

长按键不放,发出的码波形序列如下图：即将整个波形以周期89.25ms进行重复。

62

47) NEC-E3

NEC-E3是一种常见的红外遥控编码格式。该格式出现在万能遥控器

组，VT3630的SAT-088码组中。

Features 基本特点

1，数据帧（引导码，8位地址码，8位数据码，8位数据码-反码，结束码），重复帧（结

束码）

2，脉宽调制方式（PWM）；

3，载波：37.9KHZ；

4，逻辑位时间长度是1.128ms或2.256ms。

Modulation 调制

逻辑“0”（Logical“0”）是由564us的37.9KHZ载波和564us的无载波间隔组成。（图

中表示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由564us的37.9KHZ载波和1692us的无载波间隔组成。

VT3620A的451码

Protocol 协议

从上图中可看到，NEC2-E2两帧码序列是由数据帧——引导码(9.024ms的载波和4.512ms

的间隔), 8位地址码，8位数据码，8位数据码-反码和结束码，重复帧——结束码组成。

长按键不放,后续发出的波形如下:

63

其发出的整个码波形序列如下图：即将重复帧以周期108ms进行重复。

64

48) RC-5x

RC-5x是一种常见的红外遥控编码格式。该格式来源于万能遥控器

码组中。

Features 基本特点

1，2位控制码，1位翻转码，5位地址码，分割码，位数据码，

2，脉宽调制方式（PWM）；

3，载波：36.0 KHZ；

4，逻辑位时间长度是1.76ms。

Modulation 调制

逻辑“0”（Logical“0”）是由890us的36KHZ载波和890us的无载波间隔组成。（图

中表示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由890us的无载波间隔和890us的36KHZ载波组成。

6位结束码，结束码；

URC-8910的AMP-0892

Protocol 协议

从上图中可看到，RC-5x一帧码序列是由2位控制码，1位翻转码，5位地址码，分割码，

位数据码，6位结束码和结束码组成.

长按键不放,发出的码波形序列如下图：即将整个波形以周期113.778ms进行重复。

65

49) NEC1-X2

NEC1-X2是一种常见的红外遥控编码格式。该格式出现在万能遥控器

AMP-0165码组中。

Features 基本特点

1，数据帧（引导码，8位地址码，8位地址码2，8位数据码，8位数据码-反码，结束码），

数据帧-相同码，重复帧（结束码）；

2，脉宽调制方式（PWM）；

3，载波：37.9KHZ；

4，逻辑位时间长度是2.256ms或1.128ms。

Modulation 调制

逻辑“0”（Logical“0”）是由564us的37.9KHZ载波和565us的无载波间隔组成。（图

中表示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由564us的37.9KHZ载波和1692us的无载波间隔组成。

URC-8910的

Protocol 协议

从上图中可看到，NEC2-E2三帧码序列是由:

数据帧——引导码(9.024ms的载波和4.512ms的间隔), 8位地址码，8位地址码2，8位数

据码，8位数据码-反码和结束码组成。

数据帧-相同帧

重复帧——结束码（9024，-2256，564，-95156）us组成。

长按键不放,后续发出的波形如下:

66

其发出的整个码波形序列如下图：即将重复帧以周期108ms进行重复。

67

50) _pid:$0060

_pid:$0060是一种常见的红外遥控编码格式。该格式来源于万能遥控器

Features 基本特点

1，引导码，8位地址码，8位地址码码-反码，8位数据码，8位数据码-反码，结束码

2，脉宽调制方式（PWM）；

3，载波：42KHZ；

4，逻辑位时间长度是2ms或1ms。

Modulation 调制

逻辑“0”（Logical“0”）是由564us的42KHZ载波和1000us的无载波间隔组成。（图

中表示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由500us的42KHZ载波和1500us的无载波间隔组成。

URC-8910。

Protocol 协议

从上图中可看到，_pid:$0060一帧码序列是由引导码(8ms的载波和4ms的间隔), 8位地址

码，8位地址码码-反码，8位数据码，8位数据码-反码和结束码组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期108ms进行重复。

68

51) UPD1986C

UPD1986C是一种常见的红外遥控编码格式。该格式出现在万能遥控器CL311，ZC-18A

（600-917）的707码组，ZC-18A（400-481）的412码组，VT3620A，VT3630，RM-402C

的TV-268码组中。

Features 基本特点

1，引导码，5位数据码，结束码

2，脉宽调制方式（PWM）；

3，载波：56.8KHZ；

4，逻辑位时间长度是2ms或1ms。

Modulation 调制

逻辑“0”（Logical“0”）是由1134us的无载波间隔组成。

逻辑“1”（Logical“1”）是由1134us的56.8KHZ载波组成。

Protocol 协议

从上图中可看到，UPD1986C一帧码序列是由引导码

1134us的载波组成), 5位数据码和结束码组成。

(1134us的载波,1134us的间隔和

长按键不放,后续发出波形序列如下图：即将整个波形以周期37.452ms进行重复。

69

52) UPD1986C-A

UPD1986C-A是一种常见的红外遥控编码格式。该格式来源于万能遥控器

SAT-001码组。

Features 基本特点

1，引导码，8位数据码，结束码

2，脉宽调制方式（PWM）；

3，载波：28KHZ；

4，逻辑位时间长度是1.54ms。

Modulation 调制

逻辑“0”（Logical“0”）是由1540us的无载波间隔组成。

逻辑“1”（Logical“1”）是由1540us的28KHZ载波组成。

VT3630的

Protocol 协议

从上图中可看到，UPD1986C-A一帧码序列是由引导码(1540us的载波,1540us的间隔和

1540us的载波组成), 8位数据码和结束码组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期50ms进行重复。

70

53) UPD1986C-C

UPD1986C-C是一种常见的红外遥控编码格式。

Features 基本特点

1，重复帧（引导码，5位数据码，结束码），重复帧-相同帧

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是1.636ms。

Modulation 调制

逻辑“0”（Logical“0”）是由1636us的无载波间隔组成。

逻辑“1”（Logical“1”）是由1636us的38KHZ载波组成。

Protocol 协议

从上图中可看到，UPD1986C-C两帧码序列是由重复帧——引导码(3272us的载波,1636us

的间隔组成), 5位数据码和结束码；重复帧相同帧——同重复帧组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期24ms进行重复。

71

54) MV500-01（0HZ）

MV500-01（0HZ）是一种常见的红外遥控编码格式。

Features 基本特点

1，引导码，5位数据码

2，脉宽调制方式（PWM）；

3，载波：0KHZ；

4，逻辑位时间长度是7.942ms或5.302ms。

Modulation 调制

逻辑“0”（Logical“0”）是由22us的0KHZ载波和5280us的无载波间隔组成。（图中

表示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由22us的0KHZ载波和7920us的无载波间隔组成。

Protocol 协议

3，从上图中可看到，MV500-01（0HZ）一帧码序列是由引导码和5位数据码组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期50.226ms进行重复。

72

55) MV500-02（0HZ）

MV500-02（0HZ）是一种常见的红外遥控编码格式。

Features 基本特点

1，引导码，5位数据码，结束码

2，脉宽调制方式（PWM）；

3，载波：0KHZ；

4，逻辑位时间长度是10.83ms或7.23ms。

Modulation 调制

逻辑“0”（Logical“0”）是由30us的0KHZ载波和7200us的无载波间隔组成。（图中

表示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由30us的0KHZ载波和10800us的无载波间隔组成。

Protocol 协议

从上图中可看到，MV500-02（0HZ）一帧码序列是由引导码和5位数据码组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期933ms进行重复。

73

56) Zenith S10

Zenith S10是一种常见的红外遥控编码格式。

Features 基本特点

1，引导码，8位数据码，2位翻转码，结束码

2，脉宽调制方式（PWM）；

3，载波：36KHZ；

4，逻辑位时间长度是2.528ms或4.825ms。

Modulation 调制

逻辑“0”（Logical“0”）是由400us的36KHZ载波，580us的无载波间隔，400us的36KHZ

载波和1148us的无载波间隔组成。

逻辑“1”（Logical“1”）是由400us的36KHZ载波，1720us的无载波间隔，400us的

36KHZ载波和2305us的无载波间隔组成。

Protocol 协议

从上图中可看到，Zenith S10一帧码序列是由引导码，8位数据码，2位翻转码和结束码

组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期175.933ms进行重复。

74

75

76

2024年10月25日发(作者：求千柳)

目录

1）MIT-C8D8 (40k)

2) MIT-C8D8(33K)

3）SC50560-001，003P

4）M50462

5）M50119P-01

6）M50119L

7）RECS80

8）M3004

9）LC7464M

10）LC7461-C13

11）IRT1250C5D6-01

12）Gemini-C6-A

13）Gemini-C6

14) Gemini-C17(31.36K)-1

15）KONKA KK-Y261

16）PD6121G-F

17）DATA-6BIT

18）Custum-6BIT

19）M9148-1

20）SC3010 RC-5

21) M50560-1(40K)

22) SC50560-B1

23）C50560-002P

24）M50119P-01

25）M50119P-1

26）M50119P

27）IRT1250C5D6-02

28）HTS-C5D6P

29）Gemini-C17

30）Gemini-C17 -2

31）data6bit-a

32）data6bit-c

33）X-Sat

34）Philips RECS-80

35）Philips RC-MM

36）Philips RC-6

37）Philips RC-5

38）Sony SIRC

39）Sharp

40）Nokia NRC17

41）NEC

42）JVC

43）ITT

1

44）SAA3010 RC-5（36K）

45）SAA3010 RC-5（38K）

46）NEC2-E2

47) NEC-E3

48) RC-5x

49) NEC1-X2

50) _pid:$0060

51) UPD1986C

52) UPD1986C-A

53) UPD1986C-C

54) MV500-01

55) MV500-02

56) Zenith S10

2

1) MIT-C8D8（40K）

MIT-C8D8（40K）是一种常见的红外遥控编码格式。该格式出现在万能遥控器ZC-18A(600-917)

中。

Features 基本特点

1，8位地址码，8位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：40.0 KHZ；

4，逻辑位时间长度是1.215ms或2.436 ms。

Modulation 调制

逻辑“0”（Logical“0”）是由935us的无载波间隔和280us的40KHZ载波组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由280us的40KHZ载波和2156us的无载波间隔组成。

Protocol 协议

从上图中可看到，MIT-C8D8（40K）一帧码序列是由8位地址码，8位数据码和结束码组

成。.

长按键不放,发出的码波形序列如下图：即将整个波形以周期44.78ms进行重复。

3

2) MIT-C8D8(33K)

MIT-C8D8(33K) 是一种常见的编码格式。

该格式来源于OMEGA万能遥控器,码组号为0138及祝成万能遥控器ZC-18A码组号为644、

735、736.

Features 基本特点：

1、8位地址码，8位数据码；

2、脉宽调制方式（PWM）；

3、载波：33KHZ；

4、逻辑位的时间长度是1.215ms或2.436ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由280us的33KHZ载波和935us的无载波间隔组成；

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由280us的33KHZ载波和2156us的无载波间隔组成。

Protocol 协议

从上图可以看到MIT-C8D8(33K) 一帧码序列是由8位地址码，8位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期50.1ms进行重复

4

（图中

3) SC50560-001，003P 分割码(未有数据标注)

SC50560-001，003P是一种常见的红外遥控编码格式。该格式出现在CL311，URC-8910，

RM-123C，RM-139S的062码组，ZC-18A（600-917），ZC-18A（400-481），RM-301C，VT3620A，

VT3630，RM-402C的TV-012码组

Features 基本特点

1，引导码，8位地址码，分割码(未有数据标注)，8位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是2.08ms或1.04ms。

Modulation 调制

逻辑“0”（Logical“0”）是由520us的38KHZ载波和520us的无载波间隔组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由520us的38KHZ载波和1560us的无载波间隔组成。

Protocol 协议

从上图中可看到，SC50560-001，003P一帧码序列是由引导码(8ms的载波和4ms的间隔) ，

8位地址码，分割码，8位数据码和结束码组成。

长按键不放,发出的码波形序列如下图：即将整个波形以周期120.02ms进行重复。

5

4) M50462

M50462是一种常见的红外遥控编码格式。该格式出现在

（600-917），RM-301C，VT3620A，VT3630，RM-402C

Features 基本特点

RM-123C，RM-139S，ZC-18A

1，8位地址码，8位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：38 KHZ；

4，逻辑位时间长度是2.059ms或1.04ms。

Modulation 调制

逻辑“0”（Logical“0”）是由260us的38KHZ载波和780us的无载波间隔组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由260us的38KHZ载波和1799us的无载波间隔组成。

Protocol 协议

从上图中可看到，M50462一帧码序列是由8位地址码，8位数据码和结束码组成.

长按键不放,发出的码波形序列如下图：即将整个波形以周期45ms进行重复。

6

5) M50119P-01（42K）分割码(未有数据标注)

M50119P-01（42K）是一种常见的红外遥控编码格式。该格式出现在URC-8910#CBL-0009，

ZC-18A(600-917)的736码组，ZC-18A(400-481)，VT3630的SAT-001码组。

Features 基本特点

1，数据帧（4位地址码，6位数据码，分割码，4位地址码相同码，6位数据码相同码，结

束码），重复帧（用户码相同码，结束码）

2，脉宽调制方式（PWM）；

3，载波：41.8 KHZ；

4，逻辑位时间长度是3.868ms或1.934ms。

Modulation 调制

逻辑“0”（Logical“0”）是由967us的41.8KHZ载波和967us的无载波间隔组成。（图中表

示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由967us的41.8KHZ载波和2901us的无载波间隔组成。

Protocol 协议

从上图中可看到，M50119P-01（42K）两帧码序列是由数据帧（4位地址码，6位数据码，

分割码，4位地址码相同码，6位数据码相同码，结束码），重复帧（地址码相同码，结束码）

长按键不放,后续发出的波形如下:

长按键不放发出的码波形序列如下图.就是将重复帧波形以周期62.855ms进行重复.

7

6)M50119L

M50119L是一种常见的红外遥控编码格式。该格式出现在万能遥控器CL311，

URC-8910#VCR-0041，INTER DIGI-SAT，VT3630中

Features 基本特点

1，3位地址码，7位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：37.9 KHZ；

4，逻辑位时间长度是1.04ms或2.08ms。

Modulation 调制

逻辑“0”（Logical“0”）是由260us的37.9KHZ载波和780us的无载波间隔组成。（图中表

示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由260us的37.9KHZ载波和1820us的无载波间隔组成。

Protocol 协议

从上图中可看到，M50119L一帧码序列是由3位地址码，7位数据码和结束码组成

长按键不放,发出的码波形序列如下图：即将整个波形以周期25.5ms进行重复。

.

8

7) RECS80（68）

RECS80（68）是一种常见的红外遥控编码格式。该格式来源于URC8910的CD-0764码组。

Features 基本特点

1，2位控制码，3位地址码，6位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：33KHZ；

4，逻辑位时间长度是5.76ms或8.64ms。

Modulation 调制

逻辑“0”（Logical“0”）是由160us的33KHZ载波和5600us的无载波间隔)组成。（图中表

示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由160us的33KHZ载波和8480us的无载波间隔组成。

Protocol 协议

从上图中可看到，RECS80（68）一帧码序列是由2位控制码，3位地址码，6位数据码，

结束码组成的。

长按键不放,发出的码波形序列如下图：整个波形以周期138.3ms进行重复。

9

8)M3004 Carrier

M3004 Carrier是一种常见的红外遥控编码格式。该格式出现在遥控器CL311，RM-123C，

RM-139S#148，ZC-18A（600-917），ZC-18A（400-481），RM-301C，INTER-DIGI-SAT，

VT3620A，VT3630，RM-402C#TV-060中。

Features 基本特点

1，引导码，1位翻转码，3位地址码，6位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是5.06ms或7.59ms。

Modulation 调制

逻辑“0”（Logical“0”）是由141us的38KHZ载波和4919us的无载波间隔组成。（图中表

示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由141us的38KHZ载波和7449us的无载波间隔组成。

Protocol 协议

从上图中可看到，M3004 Carrier一帧码序列是由1位引导码, 1位翻转码，3位地址码，6

位数据码，结束码组成的。

长按键不放,发出的码波形序列如下图：整个波形以周期121.651ms进行重复。

10

9) LC7464M 校验码怎么算的

LC7464M是一种常见的红外遥控编码格式。该格式出现在万能遥控器CL311，URC-8910，

RM-139S，ZC-18A（600-917），ZC-18A（400-481），VT3620A，VT3630。

Features 基本特点

1，引导码，15位地址码，4位校验码，4位地址码2，8位数据码，8位校验码，结束码；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是1.68ms或0.84ms。

Modulation 调制

逻辑“0”（Logical“0”）是由420us的38KHZ载波和420us的无载波间隔组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由420us的38KHZ载波和1260us的无载波间隔组成。

Protocol 协议

从上图中可看到，LC7464M一帧码序列是由引导码(3.38ms的载波和1.69ms的间隔), 15位

地址码，4位校验码，4位地址码2，8位数据码，8位校验码，结束码组成。

长按键不放,发出的码波形序列如下图：整个波形以82.97ms的周期进行重复。

11

10) LC7461-C13

LC7461-C13是一种常见的红外遥控编码格式。该格式出现在万能遥控器CL311，URC-8910，

RM-123C，RM-139S#101，ZC-18A（600-917），RM-301C，VT3630，RM-402C的TV-131

码组。

Features 基本特点

1，数据帧（引导码，13位地址码，13位地址码-反码，8位数据码，8位数据码反码，结束

码），重复帧；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是2.24ms或1.12ms。

Modulation 调制

逻辑“0”（Logical“0”）是由560us的38KHZ载波和560us的无载波间隔)组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由560us的38KHZ载波和1680us的无载波间隔组成。

Protocol 协议

数据帧：

从上图中可看到，LC7461-C13一帧码序列是由引导码(9-ms的载波和4.5ms的间隔), 13位

地址码,13位地址码-反码，8位数据码，8位数据码反码，结束码组成。

重复帧：由结束码组成。

长按键不放,发出的后续波形如下图：

其发出的整个码波形序列如下图：由重复帧开始，以周期108.11ms进行重复。

12

11) IRT1250C5D6-01（0Hz）

IRT1250C5D6-01（0Hz）是一种常见的红外遥控编码格式。该格式出现在万能遥控器

中。

Features 基本特点

1，引导码，5位地址码，6位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：0.0 KHZ；

4，逻辑位时间长度是0.116ms或0.384ms。

VT3620A

Modulation 调制

逻辑“0”（Logical“0”）是由16us的0.0KHZ载波和160us的无载波间隔组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由16us的0.0KHZ载波和368us的无载波间隔组成。

Protocol 协议

从上图中可看到，IRT1250C5D6-01（0Hz）一帧码序列是由引导码(0.016 ms的载波和0.545ms

的间隔), 5位地址码，6位数据码，结束码（16，-543，16，-593136）us组成.

长按键不放,发出的码波形序列如下图：即将整个波形以周期596.208ms进行重复。

13

12) Gemini-C6-A（40K）

Gemini-C6-A（40K）是一种常见的红外遥控编码格式。该格式出现在万能遥控器VT3630的

SAT-034码组。

Features 基本特点

1，地址帧（引导码，7位地址码2，结束码），数据帧（引导码相同码，7位数据码，结束码），

地址帧相同帧，数据帧相同帧

2，脉宽调制方式（PWM）；

3，载波：40.0 KHZ；

4，逻辑位时间长度是1.05ms。

Modulation 调制

逻辑“0”（Logical“0”）是由525us的无载波间隔和525us的40KHZ载波组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由525us的40KHZ载波和525us的无载波间隔组成。

Protocol 协议

从上图中可看到，Gemini-C6-A（40K）由四帧码组成：

地址帧码序列由引导码(0.525ms的载波和2.625ms的间隔),7位地址码和结束码组成；

数据帧码序列由引导码相同码(0.525ms的载波和2.625ms的间隔),7位数据码和结束码组成；

地址帧相同帧同地址帧；

数据帧相同帧同数据帧。

长按键不放,发出的码波形序列如下：

其整个码波形序列如下图，就是将第三、第四帧波形以周期69.3ms进行重复.

14

13) Gemini-C6（31.36）

Gemini-C6（31.36）是一种常见的红外遥控编码格式。该格式出现在万能遥控器CL311与

VT3620A中。

Features 基本特点

1，引导码，7位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：31.0 KHZ；

4，逻辑位时间长度是0.992ms或0.992ms。

Modulation 调制

逻辑“0”（Logical“0”）是由496us的无载波间隔和496us的31KHZ载波组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由496us的31KHZ载波和496us的无载波间隔组成。

Protocol 协议

从上图中可看到，Gemini-C6（31.36）一帧码序列是由引导码(0.53ms的载波和2，65ms的

间隔),7位和结束码组成。

长按键不放,发出的码波形序列如下图：即将整个波形以周期90.724ms进行重复。

15

14) Gemini-C17(31.36K)-1

Gemini-C17(31.36K)-1是一种常见的红外遥控编码格式。该格式来源于CL311。

Features 基本特点

1，引导帧（引导码，10位地址码，结束码），地址帧（引导码相同码，10位地址码2，结束

码），引导帧相同帧，数据帧（引导码相同码，10位数据码，结束码），引导帧相同帧；

2，脉宽调制方式（PWM）；

3，载波：30.4KHZ；

4，逻辑位时间长度是1.06ms。

Modulation 调制

逻辑“0”（Logical“0”）是由530us的30.4KHZ载波和530us的无载波间隔)组成。（图中表

示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由530us的无载波间隔和530us的30.4KHZ载波组成。

Protocol 协议

从上图中可看到，Gemini-C17(31.36K)-1帧码其依次为：

引导帧码序列是由引导码(0.53ms的载波和2.65ms的间隔), 10位地址码与结束码（20.6ms）

组成；

用户帧码序列是由引导码-相同码(0.53ms的载波和2.65ms的间隔), 10位地址码2与结束码

(102.5ms)组成；

引导帧-相同帧码与引导帧码相同；

数据帧码序列是由引导码-相同码(0.53ms的载波和2.65ms的间隔), 10位数据码与结束码

(117.14ms)组成；

引导帧-相同帧码与引导帧码相同；

长按键不放,后续发出的波形如下:

其整个码波形序列如下图.就是将第四、第五帧波形以周期165.3ms进行重复.

16

15) KONKA KK-Y261

KONKA KK-Y261是一种常见的红外遥控编码格式。该格式来源于RM-123C，RM-139S的

113码组，RM-301C，RM-402C的204码组。

Features 基本特点

1，引导码，8位地址码，8位数据码，结束码；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是3ms或2ms。

Modulation 调制

逻辑“0”（Logical“0”）是由500us的38KHZ载波和1500us的无载波间隔)组成。（图中表

示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由500us的38KHZ载波和2500us的无载波间隔组成。

Protocol 协议

从上图中可看到，KONKA KK-Y261一帧码序列是由引导码(3ms的载波和3ms的间隔), 8

位地址码, 8位数据码，结束码组成.

长按键不放,发出的码波形序列如下图：即将整个波形以周期6.6ms进行重复。

17

16) PD6121G-F

PD6121G-F是一种常见的红外遥控编码格式。

Features 基本特点

1，引导码，8位地址码，8位地址码2，8位数据码，8位数据码反码；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是2.256ms或1.128ms。

Modulation 调制

逻辑“0”（Logical“0”）是由564us的38KHZ载波和564us的无载波间隔)组成。（图中表示

的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由564us的38KHZ载波和1692us的无载波间隔组成。

Protocol 协议

从上图中可看到，PD6121G-F一帧码序列是由引导码(9.024ms的载波和4.512ms的间隔), 8

位地址码,8位地址码2，8位数据码，8位数据码反码组成。

长按键不放,发出的码波形序列如下图：即将整个波形以周期108ms进行重复。

18

17) DATA-6BIT

DATA-6BIT是一种常见种常见的红外遥控编码格式。该格式来源于RM-301C，RM-402C

（195）。

Features 基本特点

1，6位数据码；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是3.802ms或1.98ms。

Modulation 调制

逻辑“0”（Logical“0”）是由440us的38KHZ载波和1540us的无载波间隔)组成。

示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由440us的38KHZ载波和3362us的无载波间隔组成。

Protocol 协议

从上图中可看到，DATA-6BIT一帧码序列仅是由6位数据码组成。

长按键不放,发出的码波形序列如下图：即将第一帧波形以周期28ms进行重复。

19

（图中表

18) CUSTUM6BIT

Custum-6BIT是一种常见的红外遥控编码格式。该格式出现在CL311，URC-8910，RM-123C，

RM-139S#148，ZC-18A（600-917），ZC-18A（400-481），RM-301C，INTER-DIGI-SAT，

VT3620A，VT3630，RM-402C。

Features 基本特点

1，6位数据码；

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是3.98ms或1.99ms。

20

19)M9148-1

M9148-1是一种常见的编码格式。

Features 基本特点：

1、3位地址码，1位控制码，8位数据码；

2、脉宽调制方式（PWM）；

3、载波：38.168KHZ；

4、逻辑位的时间长度是

Modulation 调制：

1.848ms

1、逻辑“0”（Logical“0”）是由462us的38.168KHZ载波和1386us的无载波间隔组成；（图

中表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由1386us的38.168KHZ载波和462us的无载波间隔组成。

Protocol 协议

从上图可以看到M9148-1一帧码序列是由3位地址码，1位控制码，8位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期56.023ms进行重复

21

20) SC3010RC-5

SC3010 RC-5是一种常见的编码格式。

该格式来源于众合万能遥控器RM-139S，码组号为013、208、215、216、218及万能遥控器

祝成ZC-18A，码组号为682、684、685、854、691、709.

Features 基本特点：

1、2位控制码，1为翻转码，5位地址码，6位数据码；

2、脉宽调制方式（PWM）；

3、载波：38KHZ；

4、逻辑位的时间长度是1.688ms

Modulation 调制：

1、逻辑“0”（Logical“0”）是由844us的38 KHZ载波和844us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由844us的38KHZ载波和844us的无载波间隔组成。

Protocol 协议

从上图可以看到SC3010 RC-5一帧码序列是由2位控制码、1位翻转码、5位地址码、6位

数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期127.156ms进行重复

22

21) M50560-1(40K)

M50560-1(40K) 是一种常见的编码格式。

该格式来源于万能遥控器众合RM139-S码组号为040、069、076、083、068、125、127、268

及万能遥控器众合RM-33C码组号为0016、0067、0072、0073.

Features 基本特点：

1、8位地址码，8位数据码；

2、脉宽调制方式（PWM）；

3、载波：40KHZ；

4、逻辑位的时间长度是1ms或2ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由500us的40KHZ载波和500us的无载波间隔组成；

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由500us的40KHZ载波和1500us的无载波间隔组成。

Protocol 协议

从上图可以看到M50560-1(40K) 一帧码序列是由8位地址码，8位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期67.8ms进行重复。

23

（图中

22) SC50560-B1

SC50560-B1是一种常见的编码格式。

Features 基本特点：

1、5位数据码；

2、脉宽调制方式（PWM）；

3、载波：38KHZ；

4、逻辑位的时间长度是2.6ms或4.68ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由520us的38KHZ载波和2080us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由520us的38KHZ载波和4160us的无载波间隔组成。

Protocol 协议：

从上图可以看到SC50560-B1一帧码序列是由5位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期120ms进行重复。

24

23)C50560-002P

C50560-002P是一种常见的编码格式。

该格式来源于视贝万能DVB遥控器，码组号为195.

Features 基本特点：

1、8位地址码，8位数据码；

2、脉宽调制方式（PWM）；

3、载波：38KHZ；

4、逻辑位的时间长度是1.04ms或2.08ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由520us的38KHZ载波和520us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由520us的38KHZ载波和1560us的无载波间隔组成。

Protocol 协议

从上图可以看到M50560-002P 一帧码序列是由8位地址码，8位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期360.06ms进行重复。

25

24)M50119P-01(38K)

M50119P-01(38K) 是一种常见的编码格式。

Features 基本特点：

1、4位地址码、4位地址码的相同码、6位数据码、6位数据码的相同码；

2、脉宽调制方式（PWM）；

3、载波：38KHZ；

4、逻辑位的时间长度是1.934ms或3.868ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由967us的38KHZ载波和967us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由967us的38KHZ载波和2901us的无载波间隔组成。

Protocol 协议

从上图可以看到M50119P-01(38K)一数据帧码序列是由4位地址码、6位数据码、4位地址

码相同码、6位数据码相同码，一重复帧由4位地址码相同码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期385.156ms进行重复。

26

25)M50119P-1(40K)

M50119P-1(40K) 是一种常见的编码格式。

该格式来源于OMEGA万能遥控器码组号为0041.

Features 基本特点：

1、3位地址码，7位数据码；

2、脉宽调制方式（PWM）；

3、载波：40KHZ；

4、逻辑位的时间长度是1ms或2ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由500us的40KHZ载波和500us的无载波间隔组成；

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由500us的40KHZ载波和1500us的无载波间隔组成。

Protocol 协议

从上图可以看到M50119P-1(40K)一帧码序列是由3位地址码、7位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期27.5ms进行重复。

27

（图中

26）M50119P

M50119P是一种常见的编码格式。

该格式来源于OMEGA万能遥控器码组号为0384及众合万能遥控器RM-139S码组号为041.

Features 基本特点：

1、3位地址码，7位数据码；

2、脉宽调制方式（PWM）；

3、载波：37.91KHZ；

4、逻辑位的时间长度是1ms或2ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由500us的37.9KHZ载波和500us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由500us的37.9KHZ载波和1500us的无载波间隔组成。

Protocol 协议

从上图可以看到M50119P一帧码序列是由3位地址码、7位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期30ms进行重复。

28

27）IRT1250C5D6-02(0Hz)

IRT1250C5D6-02(0Hz)是一种常见的编码格式。

Features 基本特点：

1、5位地址码，6位数据码；

2、脉宽调制方式（PWM）；

3、载波：无载波；

4、逻辑位的时间长度是0.238ms或0.496ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由16us的无载波和224us的无载波间隔组成；（图中表示的是

无载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由16us的36KHZ载波和480us的无载波间隔组成。

Protocol 协议

从上图可以看到IRT1250C5D6-02(0Hz)一帧码序列是由引导码（0.016ms的无载波和0.732ms

的间隔），5位地址码、6位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期597.251ms进行重复。

29

28）HTS-C5D6P

HTS-C5D6P是一种常见的编码格式。该格式来源于OMEGA万能遥控器0277、0321、0444.

Features 基本特点：

1、5位地址码，6位数据码，1位校验码；

2、脉宽调制方式（PWM）；

3、载波：38KHZ；

4、逻辑位的时间长度是1.496ms或2.992或4.624ms。

Modulation 调制：

1、逻辑“0”（Logical“0”）是由136us的38KHZ载波和1360us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由136us的38KHZ载波和2856us的无载波间隔组成。

3、逻辑“3”（Logical“3”）是由136us的38KHZ载波和4488us的无载波间隔组成。

Protocol 协议

从上图可以看到HTS-C5D6P一帧码序列是引导码（0.136ms的载波和5.962ms的间隔），5

位地址码，6位用户码，1位校验码。

长按键不放，后续发出波形如下：

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期89.381ms进行重复。

30

29）Gemini-C17 (31.36K)

Gemini-C17 (31.36K)是一种常见的编码格式。该格式主要来源于OMEGA万能遥控器，码组

号分别为：0134.、0225、0289、0322、0397、0400、0451、0458、0859。

Features 基本特点：

1、10位地址码，引导码的相同码,10位数据码；

2、脉宽调制方式（PWM）；

3、载波：30.4KHZ；

4、逻辑位的时间长度是1.06ms。

Modulation 调制

1、逻辑“0”（Logical“0”）是由530us的30.4KHZ载波和530us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由530us的30.4KHZ载波和530us的无载波间隔组成。

Protocol 协议

从上图可以看到Gemini-C17 (31.36K)用户帧码序列是由引导码（0.53ms的载波和2.65ms的

间隔），10位地址码，数据帧码序列由引导码的相同码，10位数据码。

长按键不放后，仍发出如下波形：

长按键不放出码的波形序列如下图，就是将第一帧以周期199.97ms进行重复。

31

30）Gemini-C17 (31.36K)-2

Gemini-C17 (31.36K)-2是一种常见的编码格式。该格式主要来源于OMEGA万能遥控器，码

组号分别为：0135、0376。

Features 基本特点：

1、16位地址码，16位数据码；

2、脉宽调制方式（PWM）；

3、载波：31KHZ；

4、逻辑位的时间长度是1.06ms。

Modulation 调制

1、逻辑“0”（Logical“0”）是由530us的31KHZ载波和530us的无载波间隔组成；（图中

表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由530us的31KHZ载波和530us的无载波间隔组成。

Protocol 协议

从上图可以看到Gemini-C17 (31.36K)-2用户帧码序列是由引导码（0.53ms的载波和2.65ms

的间隔），16位地址码，数据帧码序列由引导码（0.53ms的载波和2.65ms的间隔），16位数

据码。

长按键不放后，仍发出如下波形：

长按键不放出码的波形序列如下图，就是将第一帧以周期216.09ms进行重复。

32

31）data6bit-a

data6bit-a是一种常见的编码格式。

该格式来源于祝成万能遥控器ZC-18A码组号673.

Features 基本特点：

1、6位数据码；

2、脉宽调制方式（PWM）；

3、载波：33.3KHZ；

4、逻辑位的时间长度是2.396ms或4.776ms。

Modulation 调制

1、逻辑“0”（Logical“0”）是由576us的33.3KHZ载波和1820us的无载波间隔组成；（图

中表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由576us的33.3KHZ载波和4200us的无载波间隔组成。

Protocol 协议

从上图可以看到data6bit-a一帧码序列是6位数据码。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期58.092ms进行重复。

33

32）data6bit-c

Features 基本特点：

1、6位数据码；

2、脉宽调制方式（PWM）；

3、载波：20KHZ；

4、逻辑位的时间长度是2 ms或4ms。

Modulation 调制

1、逻辑“0”（Logical“0”）是由1000us的20KHZ载波和1000us的无载波间隔组成；（图

中表示的是有载波和无载波间隔的总长度）

2、逻辑“1”（Logical“1”）是由1000us的20KHZ载波和3000us的无载波间隔组成。

Protocol 协议

从上图可以看到data6bit-c一帧码序列是6位数据码构成。

长按键不放，发出的码波形序列如下图。就是将第一帧波形以周期72.5ms进行重复。

34

33）X-Sat Protocol

X-Sat Protocol

I call this the X-Sat protocol because it is used in the X-Sat CDTV 310 Satellite receiver made by

the French company Xcom. This protocol is probably also used in other X-Sat receivers, but I have

no means to verify that. I haven't seen this protocol anywhere else but that doesn't guarantee that it

is unique to the X-Sat brand.

Features

8 bit address and 8 bit command length

Pulse distance modulation

Carrier frequency of 38kHz

Bit time of 1ms or 2ms

Modulation

The X-Sat protocol uses pulse distance encoding of the bits. Each pulse is a 526祍long 38kHz

carrier burst (about 20 cycles). A logical "1" takes 2.0ms to transmit, while a logical "0" is only

1.0ms. The recommended carrier duty cycle is 1/4 or 1/3.

Protocol

The picture above shows a typical pulse train of the X-Sat protocol. With this protocol the LSB is

transmitted first. In this case Address $59 and Command $35 is transmitted. A message is started

by a 8ms AGC burst, which was used to set the gain of the earlier IR receivers. This AGC burst is

then followed by a 4ms space, which is then followed by the Address and Command. A peculiar

property of the X-Sat protocol is the 4ms gap between the address and the command. The total

transmission time is variable because the bit times are variable.

An IR command is repeated 60ms for as long as the key on the remote is held down.

35

34）Philips RECS-80 Protocol 38kHz carrier

This protocol is designed by Philips and transmitters are produced by Philips (SAA3008) and ST

(M3004). Personally I have never seen this protocol being used in real applications. All

information on this page is derived from the data sheet of the Philips SAA3008 and the ST M3004

().

There are 2 small differences between the two competitor ICs. The Philips IC has two modes of

operation, one which is compatible with the ST chip and one which can handle up to 20 sub-system

addresses. The ST chip has the capability of switching the modulation carrier off.

Features

7 or 20 sub-system addresses, 64 commands per sub-system address

1 or 2 toggle bits to avoid key bounce

Pulse distance modulation

Carrier frequency of 38kHz, or unmodulated

Bit time logic "0" is 5.1ms, logic "1" is 7.6ms (@ 455kHz Oscillator)

Command repetition rate 121.5ms (55296 periods of the main oscillator)

Manufacturer Philips & ST

Modulation 1/3 duty cycle

Normal Protocol

The drawing below shows a typical pulse train of a normal RECS-80 message. This example transmits

command 36 to address 4.

Usually the first pulse is a reference pulse, with a value of "1". The receiver may use this bit to determine

the exact bit length.

The next bit is a toggle bit. Its value is toggled whenever a key is released, which results in a different

code every time a new key is pressed. This allows the receiver to discriminate between new key presses

and key repetitions.

Only the ST chip M3004 can disable its carrier, in which case the REF pulse is interpreted as a second

36

toggle bit. The 2-bit toggle value is incremented every time a key is released. Thus only in this mode

there is no real REF pulse.

The next 3 pulses S2 to S0 represent the sub-system address bits, sent with MSB first. This would allow

for 8 different sub-system addresses but both the SAA3008 and the M3004 can only generate 7

sub-system addresses in normal mode. Next come the 6 command bits F to A, also sent with MSB first

allowing for 64 different commands per sub-system address.

The pulse train is terminated by a last pulse, otherwise there is no way to know the duration of bit A.

The entire command is repeated (with unchanged toggle bits) for as long as the key is held down. The

repetition rate is 121.5ms (55296 periods of the oscillator).

Address assignments are a bit odd with this protocol. You can not simply convert the binary value to a

decimal value. Below you see a table explaining the relationship between the binary and decimal

sub-system address values.

Extended Protocol

If you need more than 7 sub-system addresses you can use the extended protocol which allows 13

additional sub-system addresses only if you use the SAA3008. The drawing below shows an extended

message. This example transmits command 36 to address 10.

The first two pulses are a special start sequence. The total duration of these pulses is equal to a normal

"1" period.

The next bit is a toggle bit. Its value is toggled whenever a key is released, which results in a different

code every time a new key is pressed. This allows the receiver to discriminate between new key presses

and key repetitions.

The next 4 pulses S3 to S0 represent the sub-system address bits. This would allow for an additional 16

different sub-system addresses, although the SAA3008 can only generate 13 additional sub-system

addresses in this mode. Next come the 6 command bits F to A, also sent with MSB first.

The pulse train is terminated by a last pulse, otherwise there is no way to know the duration of bit A.

The entire command is repeated (with unchanged toggle bits) for as long as the key is held down. The

repetition rate is 121.5ms (55296 periods of the oscillator).

37

Address assignments are a bit odd with this protocol. You can not simply convert the binary value to a

decimal value. Below you see a table explaining the relationship between the binary and decimal

sub-system address values.

38

35)Philips RC-MM Protocol

RC-MM was defined by Philips to be a multi-media IR protocol to be used in wireless keyboards, mice and

game pads. For these purposes the commands had to be short and have low power requirements.

Whether the protocol is actually used for these purposes today is unknown to me. What I do know is that

some Nokia digital satellite receivers use the protocol (9800 series).

Features

12 bits or 24 bits per message

Pulse position coding, sending 2 bits per IR pulse

Carrier frequency of 36kHz

Message time ranges from 3.5 to 6.5 ms, depending on data content

Repetition time 28 ms (36 messages per second)

Manufacturer Philips

Transmission timing

In this diagram you see the most important transmission times. The message time is the total time of a

message, counting form the beginning of the first pulse until the end of the last pulse of the message.

This time can be 3.5 to 6.5 ms, depending on the data content and protocol used.

The signal free time is the time in which no signal may be sent to avoid confusion with foreign protocols

on the receiver's side. Philips recommends 1 ms for normal use, or 3.36 ms when used together with

RC-5 and RC-6 signals. Since you can never tell whether a user has other remote controls in use

together with an RC-MM controlled device I would recommend always to use a signal free time of 3.36

ms.

The frame time is the sum of the message time and the signal free time, which can add up to just about

10 ms per message.

Finally the repetition time is the recommended repetition time of 27.778 ms, which allows 36 messages

per second. This is only a recommendation and is mainly introduced to allow other devices to send their

commands during the dead times.

No provision is made for data collisions between two or more remote controls! This means that there is

no guarantee that the messages get across.

39

Modulation

With this protocol a 36 kHz carrier frequency is used to transmit the pulses. This helps to increase the noise

immunity at the receiver side and at the same time it reduces power dissipated by the transmitter LED. The

duty cycle of the pulses is 1:3 or 1:4.

Each message is preceded by a header pulse with the duration of 416.7

followed by a space of 277.8

s (15 pulses of the carrier), μ

s (10 periods of the carrier). This header is followed by 12 or 24 bits of data. μ

By changing the distance between the pulses two bits of data are encoded per pulse. Below you find a table

with the encoding times.

Protocol

RCMM comes in 3 different flavours, called modes. Each mode is intended for a particular purpose and

differs mainly in the number of bits which can be used by the application. All data is sent with MSB first.

The 12 bit mode is the basic mode, and allows for 2 address bits and 8 data bits per device family. There

are 3 different device families defined: keyboard, mouse and game pad. The 2 address bits provide for

a way to use more than 1 device simultaneously. The data bits are the actual payload data.

The 24 bit mode, also know as extended mode, allows more data to be transmitted per message. For

instance for multi-lingual keyboards or a high resolution mouse.

In the OEM mode the first 6 bits are always 0 0 0 0 1 1. The next 6 bits are the customer ID (OEM

manufacturer). My observation showed that Nokia used the code 1 0 0 0 0 0 for their 9800 series

digital satellite receivers.

Finally the last 12 bits are the actual pay load data.

40

36) Philips RC-6 Protocol

RC-6 is, as may be expected, the successor of the RC-5 protocol. Like RC-5 the new RC-6 protocol was

also defined by Philips. It is a very versatile and well defined protocol. Because of this versatility its

original definition is many pages long. Here on my page I will only summarize the most important

properties of this protocol.

Features

Different modes of operation, depending on the intended use

Dedicated Philips modes and OEM modes

Variable command length, depending on the operation mode

Bi-phase coding (aka Manchester coding)

Carrier frequency of 36kHz

Manufacturer Philips

Modulation

RC-6 signals are modulated on a 36

between 25% and 50%.

Data is modulated using Manchester coding. This means that each bit (or symbol) will have both a mark

and space in the output signal. If the symbol is a "1" the first half of the bit time is a mark and the second

half is a space. If the symbol is a "0" the first half of the bit time is a space and the second half is a mark.

Please note that this is the opposite of the RC-5 protocol!

The main timing unit is 1t, which is 16 times the carrier period (1/36k * 16 = 444

With RC-6 a total of 5 different symbols are defined:

s). μ

kHz Infra Red carrier. The duty cycle of this carrier has to be

The leader pulse, which has a mark time of 6t (2.666ms) and a space time of 2t (0.889ms).

This leader pulse is normally used to set the gain of the IR receiver unit.

41

Normal bits, which have a mark time of 1t (0.444ms) and space time of 1t (0.444ms). A "0"

and "1" are encoded by the position of the mark and space in the bit time.

Trailer bits, which have a mark time of 2t (0.889ms) and a space time of 2t (0.889ms). Again

a "0" and "1" are encoded by the position of the mark and space in the bit time.

The leader and trailer symbols are only used in the header field of the messages, which will be explained

in more detail below.

RC-6 Mode 0

I can only describe operation mode 0 because I have never actually seen other modes in use than the

one my Philips TV understands. The way I understand it the other modes can vary extremely from mode

0.

Mode 0 is a dedicated Philips Consumer Electronics mode. It allows control of up to 256 independent

devices, with a total of 256 commands per device.

The command is a concatenation of different information. I will cover these different components from

left to right.

Header field

The Header field consists of 3 different components.

First the leader symbol LS is transmitted. Its purpose is to adjust the gain of the IR receiving

unit.

This leader symbol is followed by a start bit SB which always has the value "1". Its purpose is

to calibrate the receiver's timing.

The mode bits mb2 ... mb0 determine the mode, which is 0 in this case, thus all three bits will

be "0".

Finally the header is terminated by the trailer bit TR. Please note that the bit time of this

symbol is twice as long as normal bits! This bit also serves as the traditional toggle bit, which will

42

be inverted whenever a key is released. This allows the receiver to distinguish between a new

key or a repeated key.

Control Field

This field holds 8 bits which are used as address byte. This means that a total of 256 different devices

can be controlled using mode 0 of RC-6.

The msb is transmitted first.

Information Field

The information field holds 8 bits which are used as command byte. This means that each device can

have up to 256 different commands.

The msb is transmitted first.

Signal Free Time

The Signal Free time is a period in which no data may be transmitted (by any device). It is important for

the receiver to detect the signal free time at the end of a message to avoid incorrect reception.

The signal free time is set to 6t, which is 2.666ms.

43

37) Philips RC-5 Protocol

The RC-5 code from Philips is possibly the most used protocol by hobbyists, probably because of the

wide availability of cheap remote controls.

The protocol is well defined for different device types ensuring compatibility with your whole

entertainment system. Lately Philips started using a new protocol called RC-6 which has more features.

Features

5 bit address and 6 bit command length (7 command bits for RC5X)

Bi-phase coding (aka Manchester coding)

Carrier frequency of 36kHz

Constant bit time of 1.778ms (64 cycles of 36 kHz)

Manufacturer Philips

Modulation

The protocol uses bi-phase modulation (or so-called Manchester coding) of a 36kHz IR carrier frequency.

All bits are of equal length of 1.778ms in this protocol, with half of the bit time filled with a burst of the

36kHz carrier and the other half being idle. A logical zero is represented by a burst in the first half of the

bit time. A logical one is represented by a burst in the second half of the bit time. The pulse/pause ratio

of the 36kHz carrier frequency is 1/3 or 1/4 which reduces power consumption.

Protocol

The drawing below shows a typical pulse train of an RC-5 message. This example transmits command

$35 to address $05.

44

The first two pulses are the start pulses, and are both logical "1". Please note that half a bit time is

elapsed before the receiver will notice the real start of the message.

Extended RC-5 uses only one start bit. Bit S2 is transformed to command bit 6, providing for a total of

7 command bits. The value of S2 must be inverted to get the 7th command bit though!

The 3rd bit is a toggle bit. This bit is inverted every time a key is released and pressed again. This way

the receiver can distinguish between a key that remains down, or is pressed repeatedly.

The next 5 bits represent the IR device address, which is sent with MSB first. The address is followed by

a 6 bit command, again sent with MSB first.

A message consists of a total of 14 bits, which adds up to a total duration of 25 ms. Sometimes a

message may appear to be shorter because the first half of the start bit S1 remains idle. And if the last

bit of the message is a logic "0" the last half bit of the message is idle too.

As long as a key remains down the message will be repeated every 114ms. The toggle bit will retain the

same logical level during all of these repeated messages. It is up to the receiver software to interpret

this auto repeat feature.

PS: I had rather a big error on this page for quite some time. For some mysterious reason the LSB and

MSB of the address and command were reversed. I can recall correcting this error before, but somehow

an old version of the description must have sneaked its way up to the internet again

45

38) Sony SIRC Protocol

I've collected and combined some information found on the internet about the Sony SIRC protocol. I

must admit that I have never worked with this particular protocol, so I could not verify that all

information is valid for all situations.

It appears that 3 versions of the protocol exist: 12-bit (described on this page), 15-bit and 20-bit

versions. I can only assume that the 15-bit and 20-bit versions differ in the number of transmitted bits

per command sequence.

Please note that a lot of confusing documentation about the SIRC protocol exists on the internet. At first

I contributed to the confusion by assuming the correctness of the source documents I found myself, until

someone with some SIRC experience informed me about my errors. I double checked his story with a

universal remote control and a digital storage oscilloscope, and found that the bit and word order I

documented were indeed wrong.

The protocol information on this page is according to my own measurements and should be correct now.

Features

12-bit, 15-bit and 20-bit versions of the protocol exist (12-bit described here)

5-bit address and 7-bit command length (12-bit protocol)

Pulse width modulation

Carrier frequency of 40kHz

Bit time of 1.2ms or 0.6ms

Modulation

The SIRC protocol uses a pulse width encoding of the bits. The pulse representing a logical "1" is a 1.2ms

long burst of the 40kHz carrier, while the burst width for a logical "0" is 0.6ms long. All bursts are

separated by a 0.6ms long space interval. The recommended carrier duty-cycle is 1/4 or 1/3.

Protocol

46

The picture above shows a typical pulse train of the SIRC protocol. With this protocol the LSB is

transmitted first. The start burst is always 2.4ms wide, followed by a standard space of 0.6ms. Apart

from signalling the start of a SIRC message this start burst is also used to adjust the gain of the IR

receiver. Then the 7-bit Command is transmitted, followed by the 5-bit Device address. In this case

Address 1 and Command 19 is transmitted.

Commands are repeated every 45ms(measured from start to start) for as long as the key on the remote

control is held down.

47

39) Sharp Protocol

I only have little information on this protocol. It is used in VCRs that are produced by Sharp, that is why

I gave it the name Sharp protocol.

Features

8 bit command, 5 bit address length

Pulse distance modulation

Carrier frequency of 38kHz

Bit time of 1ms or 2ms

Modulation

The Sharp protocol uses a pulse distance encoding of the bits. Each pulse is a 320

burst (about 12 cycles). A logical "1" takes 2ms to transmit, while a logical

s long 38kHz carrier μ

"0" is only 1ms. The

recommended carrier duty-cycle is 1/4 or 1/3.

Protocol

In the picture above you see a typical pulse train sending the command $11 and address $03. The

Address is sent first and consists of 5 bits. Next comes the 8 bit command. In both cases the LSB of the

data is sent first.

I don't exactly know the purpose of the Expansion and Check bits that follow the command. Both bits

were fixed in the example that I had at hand.

I can only guess that the Check bit is used to find out whether we are receiving a normal or inverted

message.

48

One complete command sequence consist of 2 messages. The first transmission is exactly as described

above. The second transmission follows the first one after a delay of 40ms, and basically contains the

same information. The only difference is that all bits, except those from the address field, are inverted.

This way the receiver can verify if the received message is reliable or not.

49

40) Nokia NRC17 Protocol

The Nokia Remote Control protocol uses 17bits to transmit the IR commands, which immediately

explains the name of this protocol.

The protocol was designed for Nokia consumer electronics. It was used during the last few years in which

Nokia produced TV sets and VCRs. Also the sister brands like Finlux and Salora used this protocol.

Nowadays the protocol is mainly used in Nokia satellite receivers and set-top boxes.

Features

8 bit command, 4 bit address and 4 bit sub-code length

Bi-phase coding

Carrier frequency of 38kHz

Constant bit time of 1ms

Battery empty indication possible

Manufacturer Nokia CE

Modulation

The protocol uses bi-phase (or so-called NRZ - Non Return to Zero) modulation of a 38kHz IR carrier

frequency. All bits are of equal length of 1ms in this protocol, with half of the bit time filled with a burst

of the 38kHz carrier and the other half being idle. A logical one is represented by a burst in the first half

of the bit time. A logical zero is represented by a burst in the second half of the bit time.

The pulse/pause ratio of the 38kHz carrier frequency is 1/4 which helps to reduce power consumption.

Protocol

The drawing below shows a typical pulse train of an NRC17 message. This example transmits command

$5C to address $6 sub-code $1.

50

The first pulse is called the pre-pulse, and is made up of a 500

a total of 3 bit times.

s burst followed by a 2.5ms pause, giving μ

Then the Start bit is transmitted, which is always a logic "1". This pulse can be used to calibrate the bit

time on the receiver side, because the burst time is exactly half a bit time.

The next 8 bits represent the IR command, which is sent with LSB first. The command is followed by a

4 bit device address. Finally a 4 bit sub-code is transmitted, which can be seen as an extension to the

address bits.

A message consists of a 3ms pre-pulse and 17 bits of 1ms each. This adds up to a total of 20ms per

message.

Every time a key is pressed on the remote control a start message is transmitted containing a command

of $FE and address/sub-code of $FF. The actual message is sent 40ms later, and is repeated every

100ms for as long as the key on the remote control remains down. When the key is released a stop

message will complete the sequence. The stop message also uses the command $FE and

address/sub-code $FF.

Every sequence can be treated as one single sequence at the receiver's end because of the start and

stop messages. Accidental key bounces are effectively eliminated by this procedure.

The receiver may decide to honour the repeated messages or not. E.g. cursor movements may repeat

for as long as the key is pressed. Numerical inputs better don't allow auto repeat.

Low Battery Indication

The NRC17 protocol provides in a way for the remote control to tell the receiver that the battery capacity is

getting low. The receiver may display a message on the TV screen informing the user that the remote

control's batteries have to be replaced.

The pre-pulse normally is 3ms long. When the battery power is low this pre-pulse will become 4ms long. In

practice only the pre-pulse of the start and stop messages are made longer this way.

51

41)NEC Protocol

To my knowledge the protocol I describe here was developed by NEC. I've seen very similar protocol

descriptions on the internet, and there the protocol is called Japanese Format.

I do admit that I don't know exactly who developed it. What I do know is that it is used in my late VCR

produced by Sanyo and was marketed under the name of Fisher. NEC manufactured the remote control

IC.

This description was taken from the VCR's service manual. Those were the days, when service manuals

were fulled with useful information!

Features

8 bit address and 8 bit command length

Address and command are transmitted twice for reliability

Pulse distance modulation

Carrier frequency of 38kHz

Bit time of 1.125ms or 2.25ms

Modulation

The NEC protocol uses pulse distance encoding of the bits. Each pulse is a 560s long 38kHz carrier burst μ

(about 21 cycles). A logical "1" takes 2.25ms to transmit, while a logical "0" is only half of that, being

1.125ms. The recommended carrier duty-cycle is 1/4 or 1/3.

Protocol

52

The picture above shows a typical pulse train of the NEC protocol. With this protocol the LSB is

transmitted first. In this case Address $59 and Command $16 is transmitted. A message is started by a

9ms AGC burst,

followed

which was used to set the gain of the earlier

space, which is then followed

IR receivers. This AGC burst is then

Address and by a 4.5ms by the Address and Command.

Command are transmitted twice. The second time all bits are inverted and can be used for verification

of the received message. The total transmission time is constant because every bit is repeated with its

inverted length. If you're not interested in this reliability you can ignore the inverted values, or you can

expand the Address and Command to 16 bits each!

A command is transmitted only once, even when the key on the remote control remains pressed. Every

110ms a repeat code is transmitted for as long as the key remains down. This repeat code is simply a

9ms AGC pulse followed by a 2.25ms space and a 560s burst. μ

Extended NEC protocol

The NEC protocol is so widely used that soon all possible addresses were used up. By sacrificing the

address redundancy the address range was extended from 256 possible values to approximately 65000

different values. This way the address range was extended from 8 bits to 16 bits without changing any

other property of the protocol.

The command

commands.

redundancy is still preserved. Therefore each address can still handle 256 different

53

Keep in mind that 256 address values of the extended protocol are invalid because they are in

fact normal NEC protocol addresses. Whenever the low byte is the exact inverse of the high

byte it is not a valid extended address.

54

42) JVC Protocol

although I have seen several different protocols being used in a JVC also has its own IR protocol,

diversity of JVC equipment. This is probably the case for equipment which JVC haven't made themselves.

Most genuine JVC equipment is controlled by the protocol described on this page though.

All information about this protocol was collected using a JVC PTU94023B service remote control and a

digital storage oscilloscope.

Features

8 bit address and 8 bit command length

Pulse distance modulation

Carrier frequency of 38kHz

Bit time of 1.05ms or 2.10ms

Modulation

The JVC protocol uses pulse distance encoding of the bits. Each pulse is a 526s long 38kHz carrier burst μ

(about 20 cycles). A logical "1" takes 2.10ms to transmit (equivalent of 80 cycles), while a logical "0" is

only 1.05ms (equivalent of 40 cycles). The recommended carrier duty cycle is 1/4 or 1/3.

Protocol

The picture above shows a typical pulse train of the JVC protocol. With this protocol the LSB is

transmitted first. In this case Address $59 and Command $35 is transmitted. A message is started by a

8.4ms AGC burst (equivalent of 320 cycles), which was used to set the gain of the earlier IR receivers.

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This AGC burst is then followed by a 4.2ms space (equivalent of 160 cycles), which is then followed by

the Address and Command. The total transmission time is variable because the bit times are variable.

An IR command is transmitted every 50 to 60ms for as long as the key on the remote is held down. Only

the first command is preceded by the 8.4ms pre-pulse and its accompanying 2.4ms space. This way the

receiver can determine whether a key is pressed for the first time or is held down

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43) ITT Protocol

The ITT IR protocol is a very old one. It differs from other protocols in that it does not use a modulated

carrier frequency to send the IR messages. A single command is transmitted by a total of 14 pulses with

a width of 10s each. The command is encoded by varying the distance between the pulses. μ

This protocol used to be very reliable and consumes very little power ensuring long battery life. One big

disadvantage of this old protocol is that it sometimes triggers false commands, for instance when you

put a laptop computer with an active IRDA port close to the IR receiver.

Many consumer electronics brands used this protocol in Europe. Among them were: ITT, Greatz,

Schaub-Lorenz, Finlux, Luxor, Salora, Oceanic and later also Nokia, to name but a few.

Features

Only 14 very short IR pulses per message

Pulse distance encoding

Long battery life

4 bit address, 6 bit command length

Self calibrating timing, allowing only simple RC oscillator in the transmitter

Fast communication, a message takes from 1.7ms to 2.7ms to transmit

Manufacturer Intermetall, now Micronas

Protocol

An IR message is transmitted by sending 14 pulses. Each pulse is 10μs long. Three different

s for a logic 0, 200μ

time

intervals between the pulses are used to get the message across: 100

1 and 300μs for the lead-in and lead-out.

s for a logic μ

The preliminary pulse is used by the receiver to set the gain of the amplifier. Then follows a lead-in

interval of 300s, after which the starting pulse is given. The first bit sent is always logic 0, which has μ

s. This start bit can be used to calibrate the timing of the receiver. After the μan interval duration of 100

start bit follow 4 bits (MSB first) that represent the address of the message. After that a total of 6 bits

(MSB first) for the command are transmitted. A trailing pulse should follow this command word. Finally

another 300μs interval follows before the very last pulse is given, functioning as a lead-out.

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There are a few things the receiving software can check to verify the validity of the received message.

The lead-out interval should be 3 times longer than the start bit time, which has a duration of 100

times should not be off by more than

for logic 1s.

Don't keep waiting for pulses after 360μs after the last received pulse. It's very likely that the

20% of the start bit length for logic 0s, or 2x the start bit length ±

s. Bit μ

transmission is interrupted or no transmission took place at all if you have to wait longer than that.

The preliminary pulse serves only AGC purposes and may be ignored by the receiving software.

Decoding of the message should start at the Start pulse.

Address and Command

A control message is divided into two groups, an address of 4 bits and a command of 6 bits. By

convention the addresses range from 1 to 16, and commands range from 1 to 64. Before the address

and command are sent, 1 is subtracted from both values to get them in the range 0 to 15 and 0 to 63.

Addresses are used in pairs. A pair of addresses is a value of 1 to 8 (0 to 7 actually), and its inverted

counter part 16 to 9 (15 to 8 actually).

The lower value

subsequent

address is transmitted the first time a key is pressed.

value of this first address

The address value of all

This messages will be the inverted until the key is released.

enables the receiver to interpret repeat codes properly. Messages are repeated every 130ms as long as

the key remains pressed.

The Transmitter

Intermetall has developed a few transmitter ICs for use in handsets. Later microcontrollers were used to

facilitate the combination of TV, VCR and SAT remote control in one handset.

The SAA1250 was the first IR controller IC to be released. It can be set to generate 3 different address

pairs. A fourth option is transmitting any of the 16 addresses. That option is rarely used, for it requires

a manual setup procedure every time the power is lost.

The second generation of IR controller ICs are the IRT1250 and IRT1260. These chips are identical in

operation and differ only in the operating voltage. The IRT1250 is intended for 9V operation, whilst the

IRT1260 is designed for 3V.

The footprint of the IRT12x0 is the same as that of the SAA1250. The devices differ in addressing

capability and current drive capacity for the output stage.

Two address pins are available to set the address pair used.

A1A2Addresses

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H H 1 & 16

L H 3 & 14

H L 7 & 10

L L 4 & 13

Addresses 1 and 16 are always used to control TV sets. Other address pairs are not always uniquely

linked to a particular equipment family.

Receiver

The ITT protocol makes no use of a modulated carrier, so the previously mentioned IR receivers won't

work for this protocol. Intermetall has created the TBA2800 for use with this protocol. It is a highly

sensitive IR detection circuit and should be shielded completely inside a metal box that is connected to

ground, leaving only a small hole just in front of the IR diode.

There is actually not much more to be told about this IC. Just connect it as shown in the diagram and it

should work. You can chose between a normal high going output, and an inverted low going output. It

depends on the rest of your circuitry which one you should use.

In case of excessive interference you could reduce the sensitivity a little by grounding pin 6 via a 10k

resistor.

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Ω

44) SAA3010 RC-5（36K）

SAA3010 RC-5（36K）是一种常见的红外遥控编码格式。该格式来源于URC-8910

TV-0054码组。

Features 基本特点

1，2位控制码，1位翻转码，5为地址码，6位数据码，结束码

2，脉宽调制方式（PWM）；

3，载波：36KHZ；

4，逻辑位时间长度是1.778ms。

Modulation 调制

逻辑“0”（Logical“0”）是由889us的36KHZ载波和889us的无载波间隔组成。

逻辑“1”（Logical“1”）是由889us的无载波间隔和889us的36KHZ载波组成。

Protocol 协议

从上图中可看到，SAA3010 RC-5（36K）一帧码序列是由2位控制码，1位翻转码，

为地址码，6位数据码，结束码组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期95ms进行重复。

的

5

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45) SAA3010 RC-5

SAA3010 RC-5是一种常见的红外遥控编码格式。

Features 基本特点

1，2位控制码，1位翻转码，5为地址码，6位数据码，结束码

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是1.778ms。

Modulation 调制

逻辑“0”（Logical“0”）是由889us的38KHZ载波和889us的无载波间隔组成。

逻辑“1”（Logical“1”）是由889us的无载波间隔和889us的38KHZ载波组成。

Protocol 协议

3，从上图中可看到，SAA3010 RC-5一帧码序列是由2位控制码，1位翻转码，5为地

址码，6位数据码，结束码组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期113.79ms进行重复。

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46) NEC2-E2

NEC2-E2是一种常见的红外遥控编码格式。该格式出现在万能遥控器

的TV-0166码组中。

Features 基本特点

1，引导码，8位地址码，8位地址码2，8位数据码，8位数据码-反码，结束码；

2，脉宽调制方式（PWM）；

3，载波：42.9KHZ；

4，逻辑位时间长度是1.08ms或2.16ms。

Modulation 调制

逻辑“0”（Logical“0”）是由540us的42.9KHZ载波和540us的无载波间隔组成。（图

中表示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由540us的42.9KHZ载波和1620us的无载波间隔组成。

CL311，URC-8910

Protocol 协议

从上图中可看到，NEC2-E2一帧码序列是由引导码(9.024ms的载波和4.512ms的间隔), 8

位地址码，8位地址码2，8位数据码，8位数据码-反码和结束码组成。

长按键不放,发出的码波形序列如下图：即将整个波形以周期89.25ms进行重复。

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47) NEC-E3

NEC-E3是一种常见的红外遥控编码格式。该格式出现在万能遥控器

组，VT3630的SAT-088码组中。

Features 基本特点

1，数据帧（引导码，8位地址码，8位数据码，8位数据码-反码，结束码），重复帧（结

束码）

2，脉宽调制方式（PWM）；

3，载波：37.9KHZ；

4，逻辑位时间长度是1.128ms或2.256ms。

Modulation 调制

逻辑“0”（Logical“0”）是由564us的37.9KHZ载波和564us的无载波间隔组成。（图

中表示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由564us的37.9KHZ载波和1692us的无载波间隔组成。

VT3620A的451码

Protocol 协议

从上图中可看到，NEC2-E2两帧码序列是由数据帧——引导码(9.024ms的载波和4.512ms

的间隔), 8位地址码，8位数据码，8位数据码-反码和结束码，重复帧——结束码组成。

长按键不放,后续发出的波形如下:

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其发出的整个码波形序列如下图：即将重复帧以周期108ms进行重复。

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48) RC-5x

RC-5x是一种常见的红外遥控编码格式。该格式来源于万能遥控器

码组中。

Features 基本特点

1，2位控制码，1位翻转码，5位地址码，分割码，位数据码，

2，脉宽调制方式（PWM）；

3，载波：36.0 KHZ；

4，逻辑位时间长度是1.76ms。

Modulation 调制

逻辑“0”（Logical“0”）是由890us的36KHZ载波和890us的无载波间隔组成。（图

中表示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由890us的无载波间隔和890us的36KHZ载波组成。

6位结束码，结束码；

URC-8910的AMP-0892

Protocol 协议

从上图中可看到，RC-5x一帧码序列是由2位控制码，1位翻转码，5位地址码，分割码，

位数据码，6位结束码和结束码组成.

长按键不放,发出的码波形序列如下图：即将整个波形以周期113.778ms进行重复。

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49) NEC1-X2

NEC1-X2是一种常见的红外遥控编码格式。该格式出现在万能遥控器

AMP-0165码组中。

Features 基本特点

1，数据帧（引导码，8位地址码，8位地址码2，8位数据码，8位数据码-反码，结束码），

数据帧-相同码，重复帧（结束码）；

2，脉宽调制方式（PWM）；

3，载波：37.9KHZ；

4，逻辑位时间长度是2.256ms或1.128ms。

Modulation 调制

逻辑“0”（Logical“0”）是由564us的37.9KHZ载波和565us的无载波间隔组成。（图

中表示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由564us的37.9KHZ载波和1692us的无载波间隔组成。

URC-8910的

Protocol 协议

从上图中可看到，NEC2-E2三帧码序列是由:

数据帧——引导码(9.024ms的载波和4.512ms的间隔), 8位地址码，8位地址码2，8位数

据码，8位数据码-反码和结束码组成。

数据帧-相同帧

重复帧——结束码（9024，-2256，564，-95156）us组成。

长按键不放,后续发出的波形如下:

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其发出的整个码波形序列如下图：即将重复帧以周期108ms进行重复。

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50) _pid:$0060

_pid:$0060是一种常见的红外遥控编码格式。该格式来源于万能遥控器

Features 基本特点

1，引导码，8位地址码，8位地址码码-反码，8位数据码，8位数据码-反码，结束码

2，脉宽调制方式（PWM）；

3，载波：42KHZ；

4，逻辑位时间长度是2ms或1ms。

Modulation 调制

逻辑“0”（Logical“0”）是由564us的42KHZ载波和1000us的无载波间隔组成。（图

中表示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由500us的42KHZ载波和1500us的无载波间隔组成。

URC-8910。

Protocol 协议

从上图中可看到，_pid:$0060一帧码序列是由引导码(8ms的载波和4ms的间隔), 8位地址

码，8位地址码码-反码，8位数据码，8位数据码-反码和结束码组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期108ms进行重复。

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51) UPD1986C

UPD1986C是一种常见的红外遥控编码格式。该格式出现在万能遥控器CL311，ZC-18A

（600-917）的707码组，ZC-18A（400-481）的412码组，VT3620A，VT3630，RM-402C

的TV-268码组中。

Features 基本特点

1，引导码，5位数据码，结束码

2，脉宽调制方式（PWM）；

3，载波：56.8KHZ；

4，逻辑位时间长度是2ms或1ms。

Modulation 调制

逻辑“0”（Logical“0”）是由1134us的无载波间隔组成。

逻辑“1”（Logical“1”）是由1134us的56.8KHZ载波组成。

Protocol 协议

从上图中可看到，UPD1986C一帧码序列是由引导码

1134us的载波组成), 5位数据码和结束码组成。

(1134us的载波,1134us的间隔和

长按键不放,后续发出波形序列如下图：即将整个波形以周期37.452ms进行重复。

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52) UPD1986C-A

UPD1986C-A是一种常见的红外遥控编码格式。该格式来源于万能遥控器

SAT-001码组。

Features 基本特点

1，引导码，8位数据码，结束码

2，脉宽调制方式（PWM）；

3，载波：28KHZ；

4，逻辑位时间长度是1.54ms。

Modulation 调制

逻辑“0”（Logical“0”）是由1540us的无载波间隔组成。

逻辑“1”（Logical“1”）是由1540us的28KHZ载波组成。

VT3630的

Protocol 协议

从上图中可看到，UPD1986C-A一帧码序列是由引导码(1540us的载波,1540us的间隔和

1540us的载波组成), 8位数据码和结束码组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期50ms进行重复。

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53) UPD1986C-C

UPD1986C-C是一种常见的红外遥控编码格式。

Features 基本特点

1，重复帧（引导码，5位数据码，结束码），重复帧-相同帧

2，脉宽调制方式（PWM）；

3，载波：38KHZ；

4，逻辑位时间长度是1.636ms。

Modulation 调制

逻辑“0”（Logical“0”）是由1636us的无载波间隔组成。

逻辑“1”（Logical“1”）是由1636us的38KHZ载波组成。

Protocol 协议

从上图中可看到，UPD1986C-C两帧码序列是由重复帧——引导码(3272us的载波,1636us

的间隔组成), 5位数据码和结束码；重复帧相同帧——同重复帧组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期24ms进行重复。

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54) MV500-01（0HZ）

MV500-01（0HZ）是一种常见的红外遥控编码格式。

Features 基本特点

1，引导码，5位数据码

2，脉宽调制方式（PWM）；

3，载波：0KHZ；

4，逻辑位时间长度是7.942ms或5.302ms。

Modulation 调制

逻辑“0”（Logical“0”）是由22us的0KHZ载波和5280us的无载波间隔组成。（图中

表示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由22us的0KHZ载波和7920us的无载波间隔组成。

Protocol 协议

3，从上图中可看到，MV500-01（0HZ）一帧码序列是由引导码和5位数据码组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期50.226ms进行重复。

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55) MV500-02（0HZ）

MV500-02（0HZ）是一种常见的红外遥控编码格式。

Features 基本特点

1，引导码，5位数据码，结束码

2，脉宽调制方式（PWM）；

3，载波：0KHZ；

4，逻辑位时间长度是10.83ms或7.23ms。

Modulation 调制

逻辑“0”（Logical“0”）是由30us的0KHZ载波和7200us的无载波间隔组成。（图中

表示的是有载波和无载波间隔的总长度。）

逻辑“1”（Logical“1”）是由30us的0KHZ载波和10800us的无载波间隔组成。

Protocol 协议

从上图中可看到，MV500-02（0HZ）一帧码序列是由引导码和5位数据码组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期933ms进行重复。

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56) Zenith S10

Zenith S10是一种常见的红外遥控编码格式。

Features 基本特点

1，引导码，8位数据码，2位翻转码，结束码

2，脉宽调制方式（PWM）；

3，载波：36KHZ；

4，逻辑位时间长度是2.528ms或4.825ms。

Modulation 调制

逻辑“0”（Logical“0”）是由400us的36KHZ载波，580us的无载波间隔，400us的36KHZ

载波和1148us的无载波间隔组成。

逻辑“1”（Logical“1”）是由400us的36KHZ载波，1720us的无载波间隔，400us的

36KHZ载波和2305us的无载波间隔组成。

Protocol 协议

从上图中可看到，Zenith S10一帧码序列是由引导码，8位数据码，2位翻转码和结束码

组成。

长按键不放,后续发出波形序列如下图：即将整个波形以周期175.933ms进行重复。

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