Relay communication system

Details Relay communication system Relay communication system

1989-12-01

1991-08-06

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 19, 370 691, 370 75, H04J 104

Patent

active

050383418

ABSTRACT:
The invention is a relay communications system which uses a single reference frequency signal generator to produce a plurality of precisely frequency synchronized code division multiple access radio frequency signals. A transmitter transmits the synchronized signals to a remote satellite based retransmitter which includes a slave oscillator precisely synchronized to the reference signal generator for down-linking the multiple radio frequency signals to a common radio frequency with all of the down-linked signals being in precise phase synchronism. The relative phase of the down-linked signals can be preserved or altered and the signals combined and amplified by a high-power amplifier operating in the saturation mode. The output from the high power amplifier is applied to a beamforming network to form an overlapping beam signal comprised of multiple code division multiple access information signals.

REFERENCES:
patent: 4232266 (1980-11-01), Acampora
patent: 4494228 (1985-01-01), Gutleber
patent: 4697260 (1987-09-01), Grauel et al.

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