Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2008-03-18
2008-03-18
Ghayour, Mohammed (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S136000, C375S147000
Reexamination Certificate
active
10721950
ABSTRACT:
A timing and carrier error detector module (127) of a communication receiver (111). The timing and carrier error detector module uses phase information of a correlated signal (e.g. a Barker de-spread signal) to generate a timing signal and carrier error signal. In one example, the phase information includes a phase error signal of the correlated signal. In one example, the timing and carrier error detector module calculates an indication of the variance of the phase error signal for a plurality of sample positions over a plurality of Barker symbol intervals. The timing signal is based upon the sample position having a minimum indication of a variance.
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Chang Sekchin
Chen Weizhong
Kulkarni Satish S.
Dolezal David G.
Ghayour Mohammed
Noonan Michael P.
Singh Ranjeev
Williams Lawrence
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