Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2005-07-26
2005-07-26
Le, Amanda T. (Department: 2634)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S150000
Reexamination Certificate
active
06922434
ABSTRACT:
Methods of recovering information encoded in a spread spectrum signal transmitted according to a spreading sequence in a communications medium are provided in which a spread spectrum signal is received from the communications medium and correlated with a spreading sequence to produce a plurality of time-offset correlations. Some of these time-offset correlations may be designed to cancel out known interfering signals. A subset of the plurality of time-offsets may then be selected, and corresponding traffic correlations may then be combined using a weighted combination to estimate information encoded in the transmitted spread spectrum signal. Receivers for implementing these methods are also provided.
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Wang et al. ȁ
Bottomley Gregory E.
Urabe Kenzo
Wang Yi-Pin Eric
Ericsson Inc.
Le Amanda T.
Myers Bigel & Sibley & Sajovec
Ware Cicely
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