Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2009-05-26
2011-10-18
Wang, Ted M (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S135000, C375S136000, C375S147000, C375S295000, C375S316000
Reexamination Certificate
active
08040936
ABSTRACT:
The present invention describes a spread spectrum communication system wherein the frequency of carriers and the code channels of the carriers or both for transmission to a given remote station user vary in time. This provides for a direct sequence spectrum communications system which changes frequency or code channel according to a predetermined pattern. The code channels and frequencies can be determined in accordance with a deterministic function or based upon a subset of the data to be transmitted. A receiver structure is also described for receiving the same.
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Moskowtiz Larry Jan
QUALCOMM Incorporated
Seo Howard H.
Wang Ted M
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