- 专利标题: Decision feedback equalizers and methods of decision feedback equalization
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申请号: US15810240申请日: 2017-11-13
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公开(公告)号: US10187234B1公开(公告)日: 2019-01-22
- 发明人: Shayan Shahramian , Behzad Dehlaghi
- 申请人: Shayan Shahramian , Behzad Dehlaghi
- 申请人地址: CN Shenzhen
- 专利权人: HUAWEI TECHNOLOGIES CO., LTD.
- 当前专利权人: HUAWEI TECHNOLOGIES CO., LTD.
- 当前专利权人地址: CN Shenzhen
- 代理机构: BCF LLP
- 主分类号: H04L27/01
- IPC分类号: H04L27/01 ; H04B1/12 ; H04L25/03
摘要:
The present disclosure relates to a 1/K-rate decision feedback equalizer (DFE) and to a decision feedback equalization method. The DFE comprises: (i) a summing circuit configured to combine K intersymbol interference (ISI) cancellation signals with an input signal of the DFE, (ii) K branches each including a reset-to-zero (RZ) latch configured to receive an output signal of the summing circuit according to a clock signal and to produce a RZ signal, and (iii) a feedback circuit including K filters each configured to receive a respective RZ signal from a respective RZ latch and to produce a respective ISI cancellation signal. The method comprises: (i) producing an output signal for K branches based on K cancellation signals and on an input signal, (ii) producing K RZ signals based on the output signal and on a clock signal, and (iii) producing the K ISI cancellation signals based on the K RZ signals.
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