Radio communication system

Details Radio communication system Radio communication system

1988-07-01

1990-11-06

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

Single message via plural carrier wave transmission

455 68, 455186, 379 61, 379 63, H04B 100

Patent

active

049692054

ABSTRACT:
A plurality of control channels different frequency is used at equal frequencies to couple a base unit and radio communication terminal unit. A radio communication device uses the plurality of control channels sequentially or at equal frequencies by switching operations to thereby transmit and/or receive information on talking channels, etc. When a particular control channel is occupied for a long time due to cross talk, etc., another control channel is selected for telephone communication purposes.

REFERENCES:
patent: 4380826 (1983-04-01), Usugi
patent: 4688261 (1987-08-01), Killoway et al.
patent: 4694485 (1987-09-01), Iwase
patent: 4744101 (1988-05-01), Saegusa
patent: 4768219 (1988-08-01), Yamagata
patent: 4768220 (1988-08-01), Yoshihara et al.
patent: 4776001 (1988-10-01), Murata et al.
patent: 4783780 (1988-11-01), Alexis
patent: 4794635 (1988-12-01), Hess

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