Unique word detection circuit
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United States of America Patent
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Nov 4, 2003
Grant Date -
N/A
app pub date -
Jul 12, 1999
filing date -
Jul 15, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In the present invention, UW gate signal generator generates a UW gate signal for detecting a unique word. Gate circuit masks received signal using UW gate signal. PN detector compares a preset unique word signal set value and the signal output from inverting circuit during the active-high interval of UW gate signal, detects whether or not they are matching, and outputs the result. UW detector compares a preset unique word signal set value and the signal output from gate circuit during the active-high interval of UW gate signal, and outputs UW detection signal. Error detector outputs a detection stop signal for stopping unique word detection based on the signals output from PN detector and UW detector.
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