Spread spectrum communication system

Details Spread spectrum communication system Spread spectrum communication system

1994-01-04

1995-08-01

Swann, Tod R.

Pulse or digital communications

Repeaters

Testing

380 34, H04K 100

Patent

active

054385890

ABSTRACT:
A spread spectrum communication system includes a transmitter and a receiver responsive to a signal transmitted by the transmitter, the transmitter including: a pseudonoise signal generator for generating a pseudonoise signal in accordance with a clock signal; a pseudonoise signal part for generating a Manchester coded pseudonoise signal by multiplying the pseudonoise signal output from the pseudonoise signal generator by the clock signal; a first modulation part for generating a first spread spectrum signal by multiplying the pseudonoise signal output from the pseudonoise signal generator by a first data signal indicating first information; a second modulation part for generating a second spread spectrum signal by multiplying the Manchester coded pseudonoise signal output from the pseudonoise signal part by a second data signal indicating second information; and a synthesizing part for generating a signal to be transmitted, by adding the first spread spectrum signal output from the first modulation part to the second spread spectrum signal output from the second modulation part.

REFERENCES:
patent: 4862478 (1989-08-01), McIntosh
patent: 5081644 (1992-01-01), Uchida et al.
patent: 5253268 (1993-10-01), Omura et al.
patent: 5303258 (1994-04-01), Nakamura
"Spread Spectrum Communication System in ETS-VI Inter-Satellite Communication Experiments," H. Kikuchi, et al., IEICE of Japan, SSTA90-45, Oct. 25 and 26, 1990.
"Spread Spectrum Communication System," p. 280, M. Yokoyama, May 20, 1988.
"Coherent Spread Spectrum Systems," p. 347, J. K. Holmes, 1990.

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