Digital two-way radio-communication system using single frequenc

Details Digital two-way radio-communication system using single frequenc Digital two-way radio-communication system using single frequenc

1988-05-27

1990-02-20

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370109, 455 83, 455 86, H04B 156, H04L 514

Patent

active

049032577

ABSTRACT:
A digital two-way radio communication system including first and second radio stations. Each radio station includes an antenna, a data transmission unit, a data reception unit, and a switching circuit. Both radio stations are radio-connected by a single frequency. When a first data transmission unit transmits data to the second radio station, a first switching circuit in the first radio station forms a transmission path between the first data transmission unit and a first antenna, and a second switching circuit in the second radio station forms a reception path between a second antenna and a second data reception unit in the second radio station, or vice versa.

REFERENCES:
patent: 2808504 (1957-10-01), Neumann et al.
patent: 2974222 (1961-03-01), Lawson
patent: 4092598 (1978-05-01), Deman et al.
patent: 4450583 (1984-05-01), Strobel et al.
patent: 4525835 (1985-06-01), Vance et al.

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