Code division multiplex system using selectable length spreading code sequences
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United States of America Patent
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May 29, 1990
Grant Date -
N/A
app pub date -
Jan 13, 1989
filing date -
Jan 13, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A code division multiplex system for use in a spread spectrum communication system utilizes selectable length spread spectrum spreading code sequences. At the encoder, one of a pluraluty of a spread spectrum spreading code sequences having a given fixed length is selected for differential encoding in accordance with the input data to be transmitted. At the receiver correlator, a selectable length differential decoder is set to be responsive to a spread spectrum spreading code sequence having a length substantially equal to the length of the encoded spread spectrum spreading code sequence.
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