Telecommunications – Transmitter and receiver at separate stations
Patent
1989-01-11
1990-08-07
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
455 54, 379 60, H04A 700, H04B 100
Patent
active
049474529
ABSTRACT:
A mobile communication system is provided wherein a plurality of signposts enable communications among mobile stations and a switching system in a predetermined communicating area, and are connected through a transmission network connected to a fixed network according to the invention, each of the signposts has dual zone communications ability including a communicating area which overlaps the communicating areas or adjacent signposts, and a zone switching signal area which does not overlap the zone switching signal areas of adjacent signposts. The signpost and mobile stations, jointly detect on-going signal levels of the mobile station, and communication area switching operation are carried out as needed. In the mobile communication system of the invention, a transmitting and receiving equipment can be a single transceiver which switches over the frequencies to communicating channel frequencies and to zone switching controlling frequencies.
REFERENCES:
patent: 4723266 (1988-02-01), Perry
patent: 4765753 (1988-08-01), Schmidt
Hattori Seiji
Kasukawa Akihide
Kobayashi Yoshinobu
Shibano Yoshizo
Suzuki Shinji
Eisenzopf Reinhard J.
Kuntz Curtis A.
Sumitomo Electric Industries Ltd.
The Tokyo Electric Power Company Ltd.
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