Direct sequence spread spectrum system

Details Direct sequence spread spectrum system Direct sequence spread spectrum system

1995-06-06

1997-08-26

Bocure, Tesfaldet

Pulse or digital communications

Repeaters

Testing

375367, 375206, H04K 100

Patent

active

056617500

ABSTRACT:
A direct-sequence spread spectrum communication system using a high power transmitter and a short spreading sequence which still satisfies FCC Rule 15.247 regarding power density. In addition to the spreading sequence, the carrier signal is modulated with a phase reversal sequence. Typically, each period of the phase reversal sequence has a duration equal to the total duration of the spreading sequence. The phase reversal sequence reduces the maximum power density of the signal, but is transparent to a receiver.

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patent: 5309474 (1994-05-01), Gilhousen et al.
patent: 5341423 (1994-08-01), Nossen
patent: 5469468 (1995-11-01), Schilling

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