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    • 3. 发明授权
    • Method, system and device for realizing data transmission extension in passive optical network
    • 在无源光网络中实现数据传输扩展的方法,系统和设备
    • US08184987B2
    • 2012-05-22
    • US12684412
    • 2010-01-08
    • Juan ChenShimin ZouJianlin Zhou
    • Juan ChenShimin ZouJianlin Zhou
    • H04B10/02
    • H04J3/1694H04L7/041
    • A method, a device, and a system for realizing data transmission extension in a passive optical network (PON) are provided. Between a burst-mode clock and data recovery (BCDR) module and an electrical-optical (E/O) amplification module, the device includes a delimiter matching module and a preamble buffering and compensating module. The delimiter matching module is adapted to receive a data frame sent by the BCDR module and determine a location of a delimiter in the data frame. An optical-electrical (O/E) amplification module performs O/E conversion, amplification, and shaping on the data frame. The BCDR module then performs clock and data recovery processing on the data frame. The preamble buffering and compensating module is adapted to receive and buffer the data frame output from the delimiter matching module, insert a compensation preamble in the data frame according to the location of the delimiter in the data frame determined by the delimiter matching module, and send the data frame to the E/O amplification module according to a retiming clock of a downstream direction. Therefore, the data transmission extension is realized in an optical-electrical-optical (OEO) manner.
    • 提供了一种在无源光网络(PON)中实现数据传输扩展的方法,设备和系统。 在突发模式时钟和数据恢复(BCDR)模块和电光(E / O)放大模块之间,该装置包括定界符匹配模块和前导码缓冲和补偿模块。 分隔符匹配模块适于接收由BCDR模块发送的数据帧,并确定数据帧中定界符的位置。 光电(O / E)放大模块在数据帧上执行O / E转换,放大和整形。 然后,BCDR模块对数据帧执行时钟和数据恢复处理。 前导码缓冲和补偿模块适于接收和缓冲从定界符匹配模块输出的数据帧,根据分隔符在由分隔符匹配模块确定的数据帧中的位置,在数据帧中插入补偿前导码,并发送 根据下行方向的重新定时时钟向E / O放大模块提供数据帧。 因此,以光电(OEO)方式实现数据传输扩展。
    • 9. 发明申请
    • METHOD AND APPARATUS FOR AUTOMATIC RESTORATION DETECTION AND AUTOMATIC RESTORATION OF OPTICAL COMMUNICATION SYSTEM
    • 用于自动恢复检测和自动恢复光通信系统的方法和装置
    • US20080240713A1
    • 2008-10-02
    • US11958045
    • 2007-12-17
    • Yiquan LuCongqi LiHao WangJuan Chen
    • Yiquan LuCongqi LiHao WangJuan Chen
    • H04B10/08
    • H04B10/0775H04B10/03
    • Methods and apparatuses for automatic restoration detection and automatic restoration of optical communication system are disclosed. In the methods, a first station sends an automatic restoration detection message to a second station at the opposite side of a failed link; in response to receiving an automatic restoration request message, determines that the link has been repaired in two directions, and sends an automatic restoration confirmation message to the second station; or in response to receiving the automatic restoration detection message, determines that the link from the second station to the first station has been repaired, and sends the automatic restoration request message to the second station; in response to receiving the automatic restoration confirmation message, determines that the link has been repaired in two directions; and switching to normal working states. The safety problem that the laser leakage occurs in the failed link is solved.
    • 公开了用于光通信系统的自动恢复检测和自动恢复的方法和装置。 在所述方法中,第一站向故障链路的相对侧的第二站发送自动恢复检测消息; 响应于接收到自动恢复请求消息,确定链路已经在两个方向上被修复,并且向第二站发送自动恢复确认消息; 或者响应于接收到自动恢复检测消息,确定从第二站到第一站的链路已经被修复,并且将自动恢复请求消息发送到第二站; 响应于接收到所述自动恢复确认消息,确定所述链路已经在两个方向上被修复; 并切换到正常工作状态。 解决了在故障链路中发生激光器泄漏的安全问题。