Digital variable in-lock range phase comparator
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United States of America Patent
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Apr 8, 1997
Issued Date -
N/A
app pub date -
Oct 10, 1995
filing date -
Feb 24, 1993
priority date (Note) -
Expired
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Abstract
A novel method and apparatus providing an all digital phase comparator of two binary signals which employs a type of cross correlation of two binary signals and provides a 2bit binary word uniquely representative of phase alignment. The method can be carried out using a pair of flip-flop (FF) circuits, each FF having a docking input and a data input, and where each FF has a delay in series with its data input.
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