Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Patent
1996-06-24
1999-09-28
Mullen, Thomas
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
3408255, 379208, 455528, H04B 100
Patent
active
059603623
ABSTRACT:
A method and apparatus to provide access to a dispatch system is disclosed. A communications manager (40) grants an exclusive system talker privilege to one remote unit (10) in the system at a time. After a remote unit (10) requests and is designated as the exclusive system talker, no other remote unit (20, 22) may transmit for a first pre-determined amount of time. After the first pre-determined time has elapsed, any other remote unit (20, 22) may request the exclusive system talker privilege and become the exclusive system talker. The exclusive system talker privilege is revoked by the communications manager (40) to any remote unit who retains the exclusive system talker privilege for more than a second pre-determined amount of time. The exclusive system talker privilege is also revoked upon the release of a push-to-talk button on a remote unit (10). Furthermore, a base station (44) in communication with a remote unit (10) designated as the exclusive system talker will generate a surrogate relinquishment request to the communications manager (40) if the exclusive system talker travels outside the coverage area of the system, loses power, or is destroyed.
REFERENCES:
patent: 2680154 (1954-06-01), Dorff
patent: 3609245 (1971-09-01), Richter et al.
patent: 4612415 (1986-09-01), Zdunek et al.
patent: 4882751 (1989-11-01), Kotzin et al.
patent: 4977589 (1990-12-01), Johnson et al.
patent: 5249304 (1993-09-01), Mulford
patent: 5465391 (1995-11-01), Toyryla
patent: 5555447 (1996-09-01), Kotzin et al.
patent: 5625879 (1997-04-01), Tuulos
patent: 5638055 (1997-06-01), McDonald et al.
patent: 5666364 (1997-09-01), Pierce et al.
Grob Matthew S.
Lekven Eric J.
Yao Yu-Dong
Miller Russell B.
Mullen Thomas
Qualcomm Incorporated
Thibault Thomas M.
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