Telecommunications – Transmitter and receiver at separate stations – With control signal
Patent
1989-01-31
1991-03-26
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
With control signal
455127, 455343, H04B 700
Patent
active
050036190
ABSTRACT:
The initial transmission (108) from one subscriber to another subscriber is transmitted at full power. The receiving unit measures the received signal strength and returns a code (118) representing this value in a reply message (114), which is also transmitted at full power. The signal strength of the reply message is determined and may be sent to the replying subscriber unit in a subsequent transmission (122), which may now be accomplished at a reduced power level. Thereafter, both subscribers may modify their respective transmitter power levels during subsequent transmission to minimize battery consumption and maximize the operational life of the subscriber unit.
REFERENCES:
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patent: 3898390 (1975-08-01), Wells et al.
patent: 3906166 (1975-09-01), Cooper et al.
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patent: 4556760 (1985-12-01), Goldman
patent: 4580262 (1986-04-01), Naylor et al.
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patent: 4777653 (1988-10-01), Bonnerot et al.
patent: 4868795 (1989-09-01), McDavid et al.
patent: 4870698 (1989-09-01), Katsuyama et al.
Borras Jaime A.
Morris James P.
Weiss Karl R.
Berry Thomas G.
Eisenzopf Reinhard J.
Meles Pablo
Motorola Inc.
Negash Kinfe-Michael
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