Method and apparatus for visible light communication using single light source
    1.
    发明授权
    Method and apparatus for visible light communication using single light source 失效
    使用单一光源的可见光通信的方法和装置

    公开(公告)号:US08160454B2

    公开(公告)日:2012-04-17

    申请号:US12486551

    申请日:2009-06-17

    IPC分类号: H04B10/00

    CPC分类号: H04B10/2587 H04B10/11

    摘要: Disclosed herein is a visible-light communication system according to one embodiment of the invention. The system comprises two apparatus. One apparatus emits a visible light beam on which is superimposed transmission data. From the void data represented by the visible light beam, the other apparatus generates a retroflected light beam, superimposes transmission data on the retroflected light beam, and applies the retroflected light beam to the apparatus. On receiving the retroflected light beam, the apparatus identifies the transmission data coming from the other apparatus, on the basis of the identification data superimposed on the retroflected light beam.

    摘要翻译: 本文公开了根据本发明的一个实施例的可见光通信系统。 该系统包括两个装置。 一个装置发射可见光束,叠加有发射数据。 根据由可见光束表示的空白数据,另一设备产生反射光束,将透射数据叠加在反射光束上,并将反射光束施加到设备。 在接收到反射光束时,该装置基于叠加在反射光束上的识别数据来识别来自另一装置的传输数据。

    System for visible light communication using single light source
    2.
    发明授权
    System for visible light communication using single light source 有权
    使用单光源的可见光通信系统

    公开(公告)号:US08805202B2

    公开(公告)日:2014-08-12

    申请号:US12491318

    申请日:2009-06-25

    IPC分类号: H04B10/00

    CPC分类号: H04B10/116

    摘要: According to one embodiment, there is provided a visible-light communications system in which bidirectional visible-light communication is performed between a visible-light communications device and a mobile terminal. The device has one light source. The mobile terminal has a retroflection unit. The mobile terminal further has first and second optical filters. The first optical filter extracts a visible light beam modulated with the data transmitted from the visible-light communications device. The second optical filter extracts a visible light beam that will be used as a retroflection light beam that is not modulated.

    摘要翻译: 根据一个实施例,提供了一种可见光通信系统,其中在可见光通信设备和移动终端之间执行双向可见光通信。 该设备有一个光源。 移动终端具有倒车单元。 移动终端还具有第一和第二滤光器。 第一光学滤波器提取由可见光通信设备发送的数据调制的可见光束。 第二滤光器提取将被用作未调制的反射光束的可见光束。

    SYSTEM FOR VISIBLE LIGHT COMMUNICATION USING SINGLE LIGHT SOURCE
    3.
    发明申请
    SYSTEM FOR VISIBLE LIGHT COMMUNICATION USING SINGLE LIGHT SOURCE 有权
    使用单光源可见光通信系统

    公开(公告)号:US20100067916A1

    公开(公告)日:2010-03-18

    申请号:US12491318

    申请日:2009-06-25

    IPC分类号: H04B10/00

    CPC分类号: H04B10/116

    摘要: According to one embodiment, there is provided a visible-light communications system in which bidirectional visible-light communication is performed between a visible-light communications device and a mobile terminal. The device has one light source. The mobile terminal has a retroflection unit. The mobile terminal further has first and second optical filters. The first optical filter extracts a visible light beam modulated with the data transmitted from the visible-light communications device. The second optical filter extracts a visible light beam that will be used as a retroflection light beam that is not modulated.

    摘要翻译: 根据一个实施例,提供了一种可见光通信系统,其中在可见光通信设备和移动终端之间执行双向可见光通信。 该设备有一个光源。 移动终端具有倒车单元。 移动终端还具有第一和第二滤光器。 第一光学滤波器提取由可见光通信设备发送的数据调制的可见光束。 第二滤光器提取将被用作未调制的反射光束的可见光束。

    Method and apparatus for visible light communication with image processing
    4.
    发明授权
    Method and apparatus for visible light communication with image processing 有权
    用于与图像处理可见光通信的方法和装置

    公开(公告)号:US08538276B2

    公开(公告)日:2013-09-17

    申请号:US12855542

    申请日:2010-08-12

    IPC分类号: H04B10/06

    CPC分类号: H04B10/116 H04B10/1141

    摘要: According to one embodiment, a visible-light communication apparatus includes an image input unit, a calculation unit, a preamble detection unit, a bit train detection unit, and a reception unit. The image input unit is configured to input image data generated by photographing a source of visible light carrying data. The calculation unit is configured to generate, from the image data, luminance data about an image at a designated position. The preamble detection unit is configured to detect a preamble at the head of the data, on the basis of the luminance data. The bit train detection unit is configured to detect the data bit train from the image data, in accordance with the preamble. The reception unit is configured to reproduce the data from the data bit train.

    摘要翻译: 根据一个实施例,可见光通信装置包括图像输入单元,计算单元,前导码检测单元,位列检测单元和接收单元。 图像输入单元被配置为输入通过拍摄可见光携带数据的源产生的图像数据。 计算单元被配置为从图像数据生成关于指定位置处的图像的亮度数据。 前导码检测单元被配置为基于亮度数据检测数据的头部的前导码。 比特列表检测单元被配置为根据前导码从图像数据检测数据比特串。 接收单元被配置为从数据位列再现数据。

    Method and apparatus for determining the position of a moving object, by using visible light communication
    5.
    发明授权
    Method and apparatus for determining the position of a moving object, by using visible light communication 有权
    通过使用可见光通信来确定移动物体的位置的方法和装置

    公开(公告)号:US07973819B2

    公开(公告)日:2011-07-05

    申请号:US12174815

    申请日:2008-07-17

    申请人: Shigehito Shimada

    发明人: Shigehito Shimada

    摘要: An apparatus for determining the present position of a vehicle, by utilizing a visible-light communication system. The apparatus uses a visible-light communication beacon and video data representing an image photographed by one camera. The beacon emits a visible optical signal, thus transmitting position data. The visible-light communication beacon comprises a road-illuminating lamp and a visible-light communication apparatus, both secured to a lamp post. The vehicle has the camera and a vehicle position determination apparatus. The vehicle position determination apparatus demodulates the visible optical signal, there restoring the position data, and calculates the present position of the vehicle from the position data.

    摘要翻译: 一种用于通过利用可见光通信系统来确定车辆的当前位置的装置。 该装置使用可见光通信信标和表示由一个照相机拍摄的图像的视频数据。 信标发出可见的光信号,从而发送位置数据。 可见光通信信标包括固定到灯柱的道路照明灯和可见光通信装置。 车辆具有照相机和车辆位置确定装置。 车辆位置确定装置解调可见光信号,在那里恢复位置数据,并根据位置数据计算车辆的当前位置。