Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1997-03-19
2000-05-09
Chin, Stephen
Pulse or digital communications
Spread spectrum
Direct sequence
375145, 375146, 375367, 370515, H04K 100
Patent
active
060613866
ABSTRACT:
A method of chip interleaving in direct sequence spread spectrum communications. A binary code sequence is chosen to have a length N=2.sup.k -1 and to be self-orthogonal. A data string of M=QN.+-.1 bits, where Q is a positive integer, is multiplied sequentially with the binary code sequence until N chip frames of M chips each are produced. These chip frames are transmitted to a receiver, and recovered in an equally straightforward manner. The integers Q and N are chosen according to transmission conditions.
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Chin Stephen
Fan Chieh M.
Friedman Mark M.
I.C. Com Ltd.
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