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公开(公告)号：US10014940B2
公开(公告)日：2018-07-03
申请号：US15117499
申请日：2015-01-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kar Yam Tay , Anne-Maud B. Laprais , Andrew Timothy Tio
IPC: H04B10/00 , H04B10/116 , H04B10/114
CPC classification number: H04B10/116 , H04B10/1141
Abstract: There is provided a method of transmitting a visible light signal in visible light communication, including binarizing data to be transmitted into a binary bit representation, encoding the data for transmission by modulating one or more of a plurality of light emitting regions between a first state and a second state based on the binary bit representation of the data, and transmitting the visible light signal in the form of light emitted by one or more of the plurality of modulated light emitting regions, the visible light signal being decodable to obtain the data. There is also provided a method of transmitting a visible light signal in visible light communication which includes modulating one or more second sets of light emitting regions within the capture region between a first state and a second state based on the bit representations of one or more previous data for enabling error detection. Corresponding methods of receiving a visible light signal and systems are also provided.
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公开(公告)号：US20160352423A1
公开(公告)日：2016-12-01
申请号：US15117499
申请日：2015-01-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kar Yam Tay , Anne-Maud B. Laprais , Andrew Timothy Tio
IPC: H04B10/116
CPC classification number: H04B10/116 , H04B10/1141
Abstract: There is provided a method of transmitting a visible light signal in visible light communication, including binarizing data to be transmitted into a binary bit representation, encoding the data for transmission by modulating one or more of a plurality of light emitting regions between a first state and a second state based on the binary bit representation of the data, and transmitting the visible light signal in the form of light emitted by one or more of the plurality of modulated light emitting regions, the visible light signal being decodable to obtain the data. There is also provided a method of transmitting a visible light signal in visible light communication which includes modulating one or more second sets of light emitting regions within the capture region between a first state and a second state based on the bit representations of one or more previous data for enabling error detection. Corresponding methods of receiving a visible light signal and systems are also provided.
Abstract translation: 提供了一种在可见光通信中发送可见光信号的方法，包括将要发送的二进制数据二进制化为二进制位表示，通过调制在第一状态和第一状态之间的多个发光区域中的一个或多个来对发送数据进行编码 基于所述数据的二进制位表示的第二状态，并且以所述多个调制发光区域中的一个或多个发射的光的形式发送所述可见光信号，所述可见光信号可解码以获得所述数据。 还提供了一种在可见光通信中发送可见光信号的方法，其包括基于一个或多个先前的一个或多个前一个的位表示在第一状态和第二状态之间调制捕获区域内的一个或多个第二组发光区域 用于启用错误检测的数据。 还提供了接收可见光信号和系统的相应方法。
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公开(公告)号：US20170211794A1
公开(公告)日：2017-07-27
申请号：US15328188
申请日：2015-08-21
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Sheldon B. Ruiz , Andrew T. Tio , Chong Yang Ong , Kar Yam Tay , Karl J. L. Geisler , David G. Freier
CPC classification number: F21V29/503 , F21S11/007 , F21V5/005 , F21V5/04 , F21V7/0008 , F21V7/22 , F21V23/003 , F21V23/009 , F21V29/70 , F21V29/713 , F21V29/74 , F21V29/83 , F21Y2115/10 , G02B6/0001 , G02B6/0096
Abstract: A lighting system comprising a light engine, a duct connected to the light engine defining a light transport passage for transporting light emitted from the light engine along a propagation direction through the duct, one or more light output surfaces on the duct through which light is emitted, the light engine comprising arranged sequentially in a single file: a light collimator having an output end arranged to face the light transport passage, a LED light source arranged to direct light into an input end of the light collimator, and a heat sink thermally coupled to the LED light source.
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