Phase comparison method and apparatus for digital signals

Details Phase comparison method and apparatus for digital signals Phase comparison method and apparatus for digital signals

1997-10-10

2000-05-02

Chin, Stephen

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

327 1, 327 2, 327 3, H03D 324

Patent

active

060581522

ABSTRACT:
A phase comparator apparatus compares a first input signal and a second input signal to output first or second compare output signal. The apparatus includes a detector circuit and a compare output generator circuit. The detector circuit detects the phase difference between the first and second signals to output a detection signal. The compare output generator circuit determines the phase deviation between the first and second input signals using the detection signal and the second input signal. The compare output generator circuit outputs the first compare output signal when the second input signal lags behind the first input signal and outputs the second compare output signal when the second input signal leads the first input signal.

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patent: 5744983 (1998-04-01), Bazes
patent: 5789947 (1998-08-01), Sato

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