Telecommunications – Transmitter and receiver at separate stations
Patent
1989-06-20
1992-10-27
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
455 542, 455 561, 455 70, 379 63, H04B 700, H04M 1100
Patent
active
051597020
ABSTRACT:
An MCA radio data communication system linking a base station and a plurality of terminal stations by radio channels through a control station, wherein note is taken of the facts that one radio channel can be occupied for only a certain occupied time T and that even after the completion of one data communication the radio channel is held for within a certain holding time t (T>t). The present invention allows each of a plurality of terminal stations to share the same radio channels without a channel assignment operation. A communication end signal is simultaneously broadcast upon completion of a first data communication and so that another terminal station demanding a second data communication starts its data communication promptly upon receiving the communication end signal without a channel assignment operation.
REFERENCES:
patent: 4012597 (1977-03-01), Lynk, Jr. et al.
patent: 4679225 (1987-07-01), Higashiyama
patent: 4712229 (1987-12-01), Nakamura
patent: 4882766 (1989-11-01), Akaiwa
Pamphlet "How to use the MCA system" published by Movable Radio Center, on Jul. 1986.
Eisenzopf Reinhard J.
Faile Andrew
Fujitsu Limited
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