首页> 外国专利> FIBER-TO-THE-HOME (FTTH) OPTICAL RECEIVER HAVING GAIN CONTROL AND A REMOTE ENABLE

FIBER-TO-THE-HOME (FTTH) OPTICAL RECEIVER HAVING GAIN CONTROL AND A REMOTE ENABLE

机译:具有增益控制和远程使能功能的光纤到户(FTTH)光学接收器

摘要

A fiber-to-the-home (FTTH) system (100) transmits forward and reverse optical signals, such as video, voice, and data signals, via optical fiber, and includes a plurality of home network units. The home network units include an FTTH optical receiver (210) for receiving at least one of the video, voice, and data signals. A triplexer (105) distinguishes and separates the video, voice, and data signals, wherein the video signals have a first wavelength and the voice and data signals have a second wavelength. The voice and data signals are provided to the home network unit for further processing. The triplexer (105) provides an electrical signal to the amplifier stages. The amplifier stages include a preamplifier stage (115, 120) and a postamplifier stage (140, 145). A gain control circuit (130) automatically adjusts the gain of the video signal based upon the input power level to the FTTH optical receiver. Additionally, a tilte network performs level compensation for externally located coaxial cable. A video signal is then provided to a video device located within a home via the coaxial cable.
机译:光纤到户(FTTH)系统(100)经由光纤传输前向和反向光信号,例如视频,语音和数据信号,并且包括多个家庭网络单元。家庭网络单元包括用于接收视频,语音和数据信号中的至少一个的FTTH光接收器(210)。三工器(105)区分并分离视频,语音和数据信号,其中视频信号具有第一波长,而语音和数据信号具有第二波长。语音和数据信号被提供给家庭网络单元以进行进一步处理。三工器(105)将电信号提供给放大器级。放大器级包括前置放大器级(115、120)和后置放大器级(140、145)。增益控制电路(130)根据对FTTH光接收器的输入功率电平自动调节视频信号的增益。另外,倾斜网络对位于外部的同轴电缆执行电平补偿。然后,视频信号通过同轴电缆被提供给位于家庭中的视频设备。

著录项

  • 公开/公告号EP1454432A4

    专利类型

  • 公开/公告日2006-08-02

    原文格式PDF

  • 申请/专利权人 SCIENTIFIC-ATLANTA INC.;

    申请/专利号EP20020793974

  • 发明设计人 SKROBKO JOHN;RIGGSBY ROBERT R.;

    申请日2002-11-13

  • 分类号H04B10/06;H04B10/20;H04J14/02;H04N7/173;

  • 国家 EP

  • 入库时间 2022-08-21 21:30:17

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