2024年3月25日发(作者：卯和韵)
专利内容由知识产权出版社提供
专利名称：DETERMINING THE LOCATION OF AN
OBJECT ON A TOUCH SURFACE
发明人：WASSVIK, Ola,CHRISTIANSSON, Tomas
申请号：EP10778006.6
申请日：20100514
公开号：EP2433204A1
公开日：20120328
摘要：An apparatus is operated to determine the location of at least one object on a
touch surface (4) of a light transmissive panel (1). In the apparatus, an illumination
arrangement (2, 10) generates a first set of sheets (C1-C3) of light and introduces the
first set of sheets (C1-C3) via a first elongate incoupling site on the panel (1) such that the
first set of sheets (Cl -C3) propagate by internal reflection between the touch surface (4)
and an opposite surface. At least two sheets in the first set of sheets (C1-C3) are
introduced so as to overlap in a portion of the touch surface (4) such that the object
interacts with the at least two sheets. Typically, each sheet (C1-C3) in the first set is
essentially collimated in the plane of the panel (1) along a respective main direction. A
detection arrangement (12, 14) couples the first set of sheets (C1-C3) out of the panel (1)
at a first elongate outcoupling site on the panel (1) and generates output signals
indicative of the energy of each sheet (Cl -C3) at a set of spatial points within the first
outcoupling site. A data processor is connected to identify, in the output signals,
attenuation peaks caused by the touching object(s) and to determine the location of the
object(s) based on the identified attenuation peaks.
申请人：FlatFrog Laboratories AB
地址：Traktorvägen 11 226 60 Lund SE
国籍：SE
代理机构：Mannerlöf Tenning, Eva Marie
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2024年3月25日发(作者：卯和韵)
专利内容由知识产权出版社提供
专利名称：DETERMINING THE LOCATION OF AN
OBJECT ON A TOUCH SURFACE
发明人：WASSVIK, Ola,CHRISTIANSSON, Tomas
申请号：EP10778006.6
申请日：20100514
公开号：EP2433204A1
公开日：20120328
摘要：An apparatus is operated to determine the location of at least one object on a
touch surface (4) of a light transmissive panel (1). In the apparatus, an illumination
arrangement (2, 10) generates a first set of sheets (C1-C3) of light and introduces the
first set of sheets (C1-C3) via a first elongate incoupling site on the panel (1) such that the
first set of sheets (Cl -C3) propagate by internal reflection between the touch surface (4)
and an opposite surface. At least two sheets in the first set of sheets (C1-C3) are
introduced so as to overlap in a portion of the touch surface (4) such that the object
interacts with the at least two sheets. Typically, each sheet (C1-C3) in the first set is
essentially collimated in the plane of the panel (1) along a respective main direction. A
detection arrangement (12, 14) couples the first set of sheets (C1-C3) out of the panel (1)
at a first elongate outcoupling site on the panel (1) and generates output signals
indicative of the energy of each sheet (Cl -C3) at a set of spatial points within the first
outcoupling site. A data processor is connected to identify, in the output signals,
attenuation peaks caused by the touching object(s) and to determine the location of the
object(s) based on the identified attenuation peaks.
申请人：FlatFrog Laboratories AB
地址：Traktorvägen 11 226 60 Lund SE
国籍：SE
代理机构：Mannerlöf Tenning, Eva Marie
更多信息请下载全文后查看