Pulse or digital communications – Repeaters – Testing
Patent
1990-05-17
1991-01-15
Safourek, Benedict V.
Pulse or digital communications
Repeaters
Testing
455 8, 455 52, 455133, 34082501, 371 82, H04B 702
Patent
active
049859048
ABSTRACT:
A switching system in a digital radio-communication system including a plurality of main radio-communication systems and a plurality of stand-by radio-communication systems provided for backing-up the main radio-communication systems. The switching system includes a plurality of switches independently operable from one another, the number of which is equal to the number of the stand-by radio-communication systems. Each switch switches between a stand-by radio-communication system defined in connection with the switch and a failed main radio-communication system, in a predetermined time.
REFERENCES:
patent: 2892930 (1959-06-01), Magnuski
patent: 3111624 (1963-11-01), Farkas
patent: 3518549 (1970-06-01), Sarati
patent: 3681694 (1972-08-01), Sarati
patent: 4777653 (1988-10-01), Bonnerot et al.
Fujitsu Limited
Safourek Benedict V.
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