Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2006-02-10
2010-02-16
Payne, David C (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S147000, C375S140000, C375S130000, C375S343000, C375S340000, C375S316000, C375S148000, C375S141000
Reexamination Certificate
active
07664164
ABSTRACT:
An apparatus and method for correlating a signal over a correlation interval while accommodating spreading code frequency offset is described. In one embodiment, the apparatus includes a plurality of correlators, where each correlator forms a correlation result corresponding to a unique code frequency offset hypothesis. Each correlator selects samples from a tapped delay line at a tap position moved along the delay line at a rate corresponding to the correlator unique code frequency offset hypothesis.
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Ertel Richard
Giallorenzi Thomas R.
Griffin Dan M.
Hall Eric K.
Harris Johnny M.
Kassa Zewdu
Kirton & McConkie
L-3 Communications Corp.
Payne David C
Ralston William T.
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