Multi-user demodulator for CDMA spectrum spreading communication
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United States of America Patent
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-
Sep 21, 1999
Grant Date -
N/A
app pub date -
Jan 10, 1997
filing date -
Jan 12, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A multi-user demodulator eliminates synchronization problems without interference cancellation. A threshold process is applied to a despread signal to extract each user's signal. The extracted signals are respread, and those respread signals other than a specifier user's signal are subtracted from the received signal to ideally extract the specific user's signal.
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