Code division multiplex system using selectable length spreading

Details Code division multiplex system using selectable length spreading Code division multiplex system using selectable length spreading

1989-01-13

1990-05-29

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

370 18, H04K 100

Patent

active

049301403

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.

REFERENCES:
patent: 4383323 (1983-05-01), Timor
patent: 4455651 (1984-06-01), Baran
patent: 4611333 (1986-09-01), McCallister et al.
patent: 4701905 (1987-10-01), Un et al.
patent: 4703474 (1987-10-01), Foschini et al.
patent: 4779265 (1988-10-01), O'Connor et al.

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