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    • 1. 发明授权
    • Apparatus and method for calculating satellite acquisition information to recognize position of mobile station
    • 用于计算卫星获取信息以识别移动台位置的装置和方法
    • US07239273B2
    • 2007-07-03
    • US10776319
    • 2004-02-12
    • Jae-Young JungEun-Tae WonDong-Jun Kum
    • Jae-Young JungEun-Tae WonDong-Jun Kum
    • G01S5/14
    • G01S19/254G01S5/0045G01S19/256G01S2205/008
    • An apparatus for calculating satellite acquisition information for controlling a position determination entity (PDE) to determine a position of the MS in a network assisted GPS system comprising an MS containing a GPS receiver and the PDE containing a reference station GPS receiver, the apparatus comprising a satellite data collector for collecting satellite orbital information transferred from a plurality of satellites to the reference station GPS receiver; a pseudo range calculator for receiving the satellites' position coordinates calculated based on the satellite orbital information and calculating a pseudo range between the MS and a satellite observed by the MS using the received information; a pseudo velocity calculator for receiving satellites' velocity information calculated based on the satellite orbital information; and a satellite acquisition information calculator for calculating a code phase using the pseudo range, calculating a Doppler shift using the pseudo velocity, and calculating the satellite acquisition information containing the code phase and the Doppler shift.
    • 一种用于计算卫星获取信息的装置,用于控制位置确定实体(PDE)以确定包括包含GPS接收机的MS和包含参考站GPS接收机的PDE的网络辅助GPS系统中的MS的位置,该装置包括: 卫星数据收集器,用于收集从多个卫星传送到参考站GPS接收机的卫星轨道信息; 伪距离计算器,用于接收基于卫星轨道信息计算出的卫星的位置坐标,并且使用所接收的信息计算由MS观察到的MS与卫星之间的伪距离; 用于接收基于卫星轨道信息计算的卫星速度信息的伪速度计算器; 以及卫星获取信息计算器,用于使用伪距离计算码相位,使用伪速度计算多普勒频移,以及计算包含码相位和多普勒频移的卫星获取信息。
    • 8. 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。
    • 9. 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。