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Apparatus and method for recovering a clock signal which is embedded in an incoming data stream

  • US 5,850,422 A
  • Filed: 07/21/1995
  • Issued: 12/15/1998
  • Est. Priority Date: 07/21/1995
  • Status: Expired due to Term
First Claim
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1. A method of recovering a clock signal which is embedded in an incoming data stream, comprising the steps of:

  • providing the incoming data stream to a data sampler circuit;

    operating the data sampler circuit to select one of a plurality of clock phases, the selected clock phase being indicative of the embedded clock signal;

    generating a recovered clock signal based on the selected clock phase;

    retiming the incoming data stream based on the recovered clock signal; and

    disabling operation of the data sampler circuit immediately after the one of the plurality of clock phases is selected.

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