Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2007-12-25
2007-12-25
Vo, Don N. (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S350000
Reexamination Certificate
active
11408411
ABSTRACT:
Data is estimated from a received vector comprising a plurality of communications. A received wireless signal is converted to a baseband signal, which is sampled to produce a received vector. Channel responses are estimated for the received communications. The noise variance is estimated. The noise variance is scaled by a scaling factor. Samples are processed using the estimated channel responses and the scaled noise variance to produce a spread data vector. The spread data vector is despread to recover the data of the received wireless signal.
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Grieco Donald M.
Kim Younglok
Pan Jung-Lin
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