Telecommunications – Transmitter – Power control – power supply – or bias voltage supply
Patent
1997-06-06
2000-04-04
Eisenzopf, Reinhard J.
Telecommunications
Transmitter
Power control, power supply, or bias voltage supply
455 383, 455343, H04B 700
Patent
active
060471697
ABSTRACT:
Power consumption of a radio communications device including a communications reference signal generator which produces a communications reference signal is controlled by selectively energizing the communications reference signal generator according to a time base which is compensated according to the communications reference signal. The communications reference signal generator may be selectively energized by generating a base timing signal, preferably from a lower frequency base timing signal generator, compensating the base timing signal according to the communications reference signal to produce a power timing signal, and selectively enabling power transfer between a power source and the communications reference signal generator according to the power timing signal. A reference-compensated power down interval defined according to the base timing signal and compensated according to the communications reference signal may be determined, and a power down signal generated according to the determined reference-compensated power down interval. Power transfer to the communications reference signal generator may be disabled for the determined reference-compensate power down interval in response to the power down signal. A radio communications circuit may be included which is responsive to the communications reference signal generator and communicates radio communications messages, the power consumption of which may be controlled by selectively energizing according to the compensated time base. Power transfer may be selectively enabled to the communications reference signal generator and the radio communications circuit according to respective first and second power down intervals, allowing power transfer to the communications reference signal generator while the radio communications circuit is disabled.
REFERENCES:
patent: 5224152 (1993-06-01), Harte
patent: 5416435 (1995-05-01), Jokinen et al.
patent: 5568513 (1996-10-01), Croft et al.
patent: 5805989 (1998-09-01), Ushida
patent: 5806006 (1998-09-01), Dinkins
International Search Report, PCT/US98/11587, dated Sep. 15, 1998.
Bhattacharya Sam
Eisenzopf Reinhard J.
Ericsson Inc.
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