Spread spectrum communication system

Details Spread spectrum communication system Spread spectrum communication system

1988-05-05

1990-07-10

Cangialosi, Salvatore

Pulse or digital communications

Repeaters

Testing

380 34, 380 48, H04K 110

Patent

active

049411500

ABSTRACT:
A spread spectrum communication system has, in a transmission part, a first circuit for extracting a first carrier signal from a predetermined broadcase wave and generating a first clock signal by using the first carrier signal, a second circuit for generating a first pseudo-noise signal by using the first clock signal from the first circuit, and a third circuit for modulating an information signal and broadening a frequency band of the modulated information signal by using the first pseudo-noise signal from the second circuit. A reception part of the spread spectrum communication system uses a second clock signal, a frequency of which is identical to that of the first clock signal. Thereby the second clock signal becomes identical to the first clock signal in frequency.

REFERENCES:
patent: 4045796 (1977-08-01), Kline, Jr.
patent: 4327438 (1982-04-01), Baier et al.
patent: 4447907 (1984-05-01), Bjopnholt et al.
patent: 4532635 (1985-07-01), Mangulis
patent: 4532636 (1985-07-01), Wilkinson
patent: 4543657 (1985-09-01), Wilkinson
patent: 4649549 (1987-03-01), Halpern et al.
patent: 4829540 (1989-05-01), Waggener, Sr. et al.
The Radio Amateur's Handbook (1973), Standard Frequencies and Time Signals, Myers Ed.

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