Phase detection method and circuit

专利名称：Phase detection method and circuit发明人：Stojanovic, Nebojsa申请号：EP10168601.2申请日：20100706公开号：EP2405577B1公开日：20190424

摘要：The present invention relates to the methods of phase-detection. According tofirst embodiment, a kind of signal is sampled to obtain amplitude sample. The averagevalue that the absolute value of so difference subtracts amplitude sample amplitudesample is calculated. According to second embodiment, which is sampled in the first andsecond phases. This leads to the first and second amplitude samples (1,2) and first andmultiple second thresholds (3,4), to give the first and second weighted value (wA1, wB2each first and second amplitude sample) is arrived, depending on the clue belonged towhich range (S2, S3, in two neighboring threshold value S4) first and second amplitudesamples. Then and/or first and second weighted values (wA1, wB2) of poor (45) calculate.The invention further relates to phase detection circuit, those implement method of theinvention.

申请人：Cisco Technology, Inc.

代理机构：Roberts, Gwilym Vaughan

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