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    • 31. 发明申请
    • VISIBLE LIGHT COMMUNICATION METHOD IN AN INFORMATION DISPLAY DEVICE HAVING AN LED BACKLIGHT UNIT, AND INFORMATION DISPLAY DEVICE FOR THE METHOD
    • 具有LED背光单元的信息显示装置中的可见光通信方法,以及用于该方法的信息显示装置
    • US20140023378A1
    • 2014-01-23
    • US14009988
    • 2012-07-17
    • Tae-Han BaeSun-Gi GuJae-Seung SonEun-Tae Won
    • Tae-Han BaeSun-Gi GuJae-Seung SonEun-Tae Won
    • H04B10/114
    • H04B10/1143G06Q30/02H04B10/114
    • Proposed is a method for providing additional information to a mobile communication terminal by means of visible light communication in an information display device having an LED backlight unit. For this purpose, the method of the present invention comprises the steps of: receiving, from a mobile communication terminal, a request for additional information on an object in a content image when a content image is being displayed on a screen of an information display device; determining whether or not there exists additional information corresponding to the request; and controlling, if said additional information does exist, the light emission of the LED backlight unit so as to transmit said additional information in the form of visible light to the mobile communication terminal. Further, according to the present invention, it is possible to provide various additional information corresponding to the request from the mobile communication terminal.
    • 提出了一种在具有LED背光单元的信息显示装置中通过可见光通信向移动通信终端提供附加信息的方法。 为此,本发明的方法包括以下步骤:当在信息显示设备的屏幕上显示内容图像时,从移动通信终端接收关于内容图像中的对象的附加信息的请求 ; 确定是否存在对应于该请求的附加信息; 并且如果所述附加信息确实存在,则控制LED背光单元的发光,以便以可见光的形式将所述附加信息发送到移动通信终端。 此外,根据本发明,可以提供与来自移动通信终端的请求对应的各种附加信息。
    • 37. 发明授权
    • System and method for navigation using visible light communications
    • 使用可见光通信的导航系统和方法
    • US07970537B2
    • 2011-06-28
    • US12013145
    • 2008-01-11
    • Jong-Hoon AnnJae-Seung SonEun-Tae Won
    • Jong-Hoon AnnJae-Seung SonEun-Tae Won
    • G01C21/30
    • G01C21/20H04B10/1141H04B10/116
    • A navigation system and a navigation method inside of a building using Visible Light Communications (VLC) are provided. The navigation system includes a map server, in which map information required to provide a navigation function is stored, for transferring the map information to each lamp, a plurality of lamps, installed in each zone inside of the building and having their respective identifiable and unique IDentifications (IDs), for receiving the map information required to provide the navigation function from the map server, and for generating a visible light signal in response to the received map information by using a VLC module, and a mobile terminal, equipped with a visible light Rx module, for being provided with the map information upon receiving the visible light signal generated from the lamp, and for displaying a map image in response to the provided map information.
    • 提供了使用可见光通信(VLC)的建筑内部的导航系统和导航方法。 导航系统包括地图服务器,其中存储提供导航功能所需的地图信息,用于将地图信息传送到每个灯,安装在建筑物内部的每个区域中并具有各自的可识别和独特的多个灯 识别(ID),用于从地图服务器接收提供导航功能所需的地图信息,以及响应于使用VLC模块接收的地图信息产生可见光信号;以及移动终端,其配备有可见 光接收模块,用于在接收到从灯产生的可见光信号时提供地图信息,并且响应于所提供的地图信息显示地图图像。
    • 38. 发明授权
    • Optical receiver for visible light communication and light communication system using the same
    • 用于可见光通信和光通信系统的光接收机
    • US07889998B2
    • 2011-02-15
    • US11974376
    • 2007-10-12
    • Jae-Seung SonEun-Tae WonJong-Hoon Ann
    • Jae-Seung SonEun-Tae WonJong-Hoon Ann
    • H04B10/00
    • H04B10/672
    • An optical receiver for visible light communication includes a lens system for converging visible light for light communication and an optical filter for passing converged visible light to the optical receiver. A photoelectric transmission device detects data from visible light for light communication in a VLC system. An optical filter is positioned between the lens system and the photoelectric transmission device, the optical filter having a first film for transmitting visible light and a second film arranged/grown around the first film to transmit ultraviolet rays or infrared rays. A first optical detects data from visible light passing through the first film of the optical filter. A second optical detector detects the intensity of light transmitting the second film. The encoding, encoding rate or intensity of the optical transmitted signal can be adjusted in response to the detection of at least the second optical detector.
    • 用于可见光通信的光接收机包括用于会聚用于光通信的可见光的透镜系统和用于将会聚的可见光传递到光接收器的滤光器。 光电传输装置从VLC系统中的光通信中检测来自可见光的数据。 滤光器位于透镜系统和光电传输装置之间,滤光器具有用于透射可见光的第一膜和布置/生长在第一膜周围的透射紫外线或红外线的第二膜。 第一光学器件检测通过光学滤波器的第一膜的可见光的数据。 第二光学检测器检测透射第二膜的光的强度。 可以响应于至少第二光学检测器的检测来调整光学传输信号的编码,编码速率或强度。
    • 39. 发明授权
    • Method and apparatus for processing signals of photo-detector in visible light communication system
    • 用于处理可见光通信系统中光检测器信号的方法和装置
    • US08045864B2
    • 2011-10-25
    • US12189364
    • 2008-08-11
    • Jong-Hoon AnnJae-Seung SonEun-Tae Won
    • Jong-Hoon AnnJae-Seung SonEun-Tae Won
    • H04B10/00H04B10/06
    • H04B10/1121
    • Disclosed is a method for processing incoming signals of photo-detectors in a visible light communication system. The method includes: dividing symbol duration into divided durations according to an equal time interval to set the divided durations to a plurality of time slots, the symbol duration being a time required to transmit one of a symbol and a bit; receiving visible light signals through a photodiode array in a receiver; determining a gain value of each of the photodiodes during a time slot, in consideration of each photodiode area on the photodiode array during the time slot and the time slot position within the symbol duration; multiplying a gain value of each of the photodiodes by an output value of a corresponding photodiode; and summing up output values of each of the photodiodes by which the gain value has been multiplied and calculating a total of output values of the time slot.
    • 公开了一种在可见光通信系统中处理光电检测器的输入信号的方法。 该方法包括:根据相等的时间间隔将符号持续时间划分为划分的持续时间,以将分配的持续时间设置为多个时隙,该符号持续时间是发送符号和比特之一所需的时间; 通过接收器中的光电二极管阵列接收可见光信号; 在时隙期间考虑光电二极管阵列上的每个光电二极管区域以及符号持续时间内的时隙位置来确定时隙期间每个光电二极管的增益值; 将每个光电二极管的增益值乘以相应光电二极管的输出值; 以及对增益值已经相乘的每个光电二极管的输出值进行求和,并计算该时隙的输出值的总和。