发明授权
- 专利标题： Chromatic dispersion compensation using sign operations and lookup tables
- 专利标题（中）： 使用符号操作和查找表进行色散补偿
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申请号： US13267131申请日： 2011-10-06
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公开(公告)号： US08718474B2公开(公告)日： 2014-05-06
- 发明人: Dayou Qian , Junqiang Hu , Ting Wang , Yoshiaki Aono , Tsutomu Tajima
- 申请人： Dayou Qian , Junqiang Hu , Ting Wang , Yoshiaki Aono , Tsutomu Tajima
- 申请人地址： US NJ Princeton
- 专利权人： NEC Laboratories America, Inc.
- 当前专利权人： NEC Laboratories America, Inc.
- 当前专利权人地址： US NJ Princeton
- 代理商 Joseph Kolodka
- 主分类号： H04B10/00
- IPC分类号： H04B10/00 ; H04J14/02 ; H04B10/04
摘要：
Methods and devices for compensating for chromatic dispersion are shown that include receiving an input data signal, applying a filter to the data signal, and outputting a CD compensated signal. Applying the filter includes convolving known filter coefficients with a plurality of delayed versions of the data signal using addition and at least one inverse sign operation or using lookup tables and combining outputs to produce a CD compensated signal.
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