Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2006-05-23
2006-05-23
Chin, Stephen (Department: 2634)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S147000, C375S142000, C375S130000, C375S148000, C342S357490
Reexamination Certificate
active
07050486
ABSTRACT:
A path searcher of a spread spectrum receiver includes a number of correlators each of which produces a replica of a scrambled synchronization code and determines a correlation between the replica and a received spread spectrum signal. Each of the correlators performs a correlation operation between the received spread spectrum signal and the replica at a rate higher than a chip rate of the spread spectrum signal by successively shifting the replica with respect to the spread spectrum signal.
REFERENCES:
patent: 4660164 (1987-04-01), Leibowitz
patent: 5511015 (1996-04-01), Flockencier
patent: 5901171 (1999-05-01), Kohli et al.
patent: 6044104 (2000-03-01), Watanabe
patent: 6208291 (2001-03-01), Krasner
patent: 6532251 (2003-03-01), King et al.
patent: 6678313 (2004-01-01), Imaizumi et al.
patent: 6693951 (2004-02-01), Gilhousen et al.
patent: 6700925 (2004-03-01), Ohnishi
patent: 6813309 (2004-11-01), Ogino
patent: 5-53912 (1993-03-01), None
patent: 9-223118 (1997-08-01), None
patent: 11-39207 (1999-02-01), None
patent: 11-353232 (1999-12-01), None
patent: 2000-22665 (2000-01-01), None
patent: 2000-115025 (2000-04-01), None
patent: 2000-138651 (2000-05-01), None
patent: 2000-188587 (2000-07-01), None
patent: 2000-209124 (2000-07-01), None
patent: 2000-209124 (2000-07-01), None
patent: 2000-244331 (2000-09-01), None
patent: 2000-244367 (2000-09-01), None
patent: 2000-307479 (2000-11-01), None
patent: WO 99/63677 (1999-12-01), None
Chin Stephen
NEC Corporation
Pathak Sudhanshu C.
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