Apparatus and related method for detecting phase of input data
OwnerJia-Long Laiinventor
Life of this patent
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Abstract
An apparatus for detecting a phase of an input signal includes: a phase detector unit for detecting the phase of the input signal referring to a plurality of clock signals having different phases and for outputting a plurality of phase detection results, wherein each of the phase detection results represents a candidate phase of the input signal and corresponds to one of the clock signals; and a phase decision unit, coupled to the phase detector unit, for determining the phase of the input signal according to the phase detection results.
Claims24
An apparatus for detecting a phase of an input signal, comprising:
- a phase detector unit for detecting the phase of the input signal referring to a plurality of clock signals having different phases and for outputting a plurality of phase detection results, wherein each of the phase detection results represents a candidate phase of the input signal and corresponds to one of the clock signals;
- and
- a phase decision unit, coupled to the phase detector unit, for determining the phase of the input signal according to the phase detection results.
An apparatus for producing a recovery data signal from an input signal, comprising:
- a phase detector unit for detecting the phase of the input signal referring to a plurality of clock signals having different phases and for outputting a plurality of phase detection results, wherein each of the phase detection results represents a candidate phase of the input signal and corresponds to one of the clock signals;
- a phase decision unit, coupled to the phase detector unit, for determining the phase of the input signal according to the phase detection results;
- and
- a clock/data recovery unit, coupled to the phase decision unit, for determining a recovery clock signal according to the phase of the input signal determined by the phase decision unit and the clock signals generated from the multi-phase clock generating unit, and for producing the recovery data signal by sampling the input signal according to the recovery clock signal.
An method for detecting a phase of an input signal, comprising:
- (a) detecting a candidate phase of the input signal referring to a plurality of clock signals having different phases and generating a plurality of phase detection results, wherein each of the phase detection results represents the candidate phase of the input signal and corresponds to one of the clock signals;
- and
- (b) determining the phase of the input signal according to the phase detection results.
An method for producing a recovery data signal from an input signal, comprising:
- detecting a candidate phase of the input signal referring to a plurality of clock signals having different phases and generating a plurality of phase detection results, wherein each of the phase detection results represents the candidate phase of the input signal and corresponds to one of the clock signals;
- determining the phase of the input signal according to the phase detection results;
- and
- determining a recovery clock signal according to the phase of the input signal and the clock signals, and producing a recovery data signal by sampling the input signal according to the recovery clock signal.
Dependencies are inferred from the claim text.