Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2011-08-16
2011-08-16
Timory, Kabir A (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S133000, C375S135000, C375S140000, C375S141000, C375S295000, C375S299000
Reexamination Certificate
active
08000377
ABSTRACT:
A communication system and receiver is provided that facilitates increased message size in a communication system that supports a large number of transmitters sharing a common frequency band. The communication system facilitates increased message size by incorporating a plurality of transmit bit sets in each burst of data. The additional transmit bit sets are incorporated into a plurality of transmit codes that are generated using at least one additional spreading code that is orthogonal to the base spreading code. The plurality of transmit codes are then combined into one composite message and the composite message is spread again using another scrambling sequence. The final composite spread message is transmitted to the receiver in the appropriate message time slot, resulting in CDM/TDMA burst signal that facilitates increased message size.
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General Dynamics C4 Systems, Inc.
Ingrassia Fisher & Lorenz P.C.
Timory Kabir A
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