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    • 10. 发明申请
    • DEVICE, SYSTEM AND METHOD USING DUAL DECISION DECODERS FOR ERROR CORRECTION IN OPTICAL RECEIVERS
    • 使用双重判决解码器对光接收器进行错误校正的设备,系统和方法
    • WO2008100227A1
    • 2008-08-21
    • PCT/SG2008/000050
    • 2008-02-12
    • AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHCHEN, JianWANG, YixinLU, Chao
    • CHEN, JianWANG, YixinLU, Chao
    • H04B10/158H04L1/20
    • H04L1/0045H04B10/695H04L1/0052H04L1/0057H04L25/063
    • Embodiments of the present invention provide an error correction device providing dual decision levels with internal dynamic decision level adjustments in an optical receiver, the error correction device comprising: a first decision decoder capable of receiving an input signal and of providing a first decision output based on a first decision level; a second decision decoder capable of receiving the input signal and of providing a second decision output based on a second decision level; an XOR gate for receiving the first and second decision outputs, the XOR gate providing a first output of a plurality of ambiguous data bits; a counter for receiving and counting the plurality of ambiguous bits over a period of time; and a decision level adjuster for receiving a count of the plurality of ambiguous bits from the counter, and adjusting the first and second decision levels based on said count.
    • 本发明的实施例提供了一种纠错装置,其在光接收机中提供具有内部动态决策电平调整的双重判定级别,所述纠错装置包括:第一判决解码器,能够接收输入信号并提供基于 第一决策级别; 第二判定解码器,其能够接收所述输入信号并且基于第二判定级别提供第二判定输出; 用于接收第一和第二判定输出的异或门,XOR门提供多个模糊数据位的第一输出; 用于在一段时间内接收和计数多个不明确位的计数器; 以及判定级别调整器,用于从计数器接收多个模糊位的计数,以及基于所述计数调整第一和第二判定级别。