Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2006-05-22
2010-02-02
Phu, Phuong (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S142000, C375S145000, C370S208000, C370S235000, C370S342000
Reexamination Certificate
active
07656934
ABSTRACT:
A wireless communication system. The system comprises transmitter circuitry (BST1), the transmitter circuitry comprising encoder circuitry (50) for transmitting a plurality of frames (FR). Each of the plurality of frames comprises a primary synchronization code (PCS) and a secondary synchronization code (SSC). The encoder circuitry comprises of circuitry (501) for providing the primary synchronization code in response to a first sequence (32). The encoder circuitry further comprises circuitry (502) for providing the secondary synchronization code in response to a second sequence (54) and a third sequence (56). The second sequence is selected from a plurality of sequences. Each of the plurality of sequences is orthogonal with respect to all other sequences in the plurality of sequences. The third sequence comprises a subset of bits from the first sequence.
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Dabak Anand G.
Hosur Srinath
Sriram Sundararajan
Bassuk Lawrence J.
Brady W. James
Phu Phuong
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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