Delay-locked loop circuit in spread spectrum receiver
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United States of America Patent
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Oct 29, 1991
Grant Date -
N/A
app pub date -
Sep 28, 1988
filing date -
Sep 28, 1988
priority date (Note) -
Expired
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Abstract
Spread spectrum receiver includes a delay locked loop (DLL) circuit for holding the synchronization of a despread signal with a received spread spectrum signal. The DLL circuit comprises a subtracter for generating a signal representative of a subtraction between first and second correlation signals, a positive feedback amplifier for amplifying the subtraction representative signal and a window comparator for producing a lock signal when the subtraction representative signal is positioned within a window width.
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