Power control apparatus with PAM reference voltage tuner for...

Details Power control apparatus with PAM reference voltage tuner for... Power control apparatus with PAM reference voltage tuner for...

2007-03-27

2007-03-27

Anderson, Matthew D. (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S126000, C455S013400, C455S069000, C455S127100, C455S114300, C455S570000, C455S571000, C455S572000

Reexamination Certificate

active

10162762

ABSTRACT:
A transmission power control apparatus of a mobile terminal includes an intermediate frequency automatic gain controller for receiving a transmission intermediate frequency signal and performing an intermediate frequency automatic gain adjustment. A power amplifier for amplifying the transmission intermediate frequency signal. A mobile station modem (MSM) for outputting a transmission gain control signal to the intermediate frequency automatic gain controller, and a reference voltage control unit for receiving the transmission gain control signal and outputting a reference voltage to the power amplifier are also provided. Since the change of the reference voltage is always under control in the power mode switching, the burst noise occurrence due to the sudden reference voltage change in the transmission power can be restrained, and increased battery use time can be achieved by using a low reference voltage in the low power mode.

REFERENCES:
patent: 6011980 (2000-01-01), Nagano et al.
patent: 6118988 (2000-09-01), Choi
patent: 6259901 (2001-07-01), Shinomiya et al.
patent: 6356745 (2002-03-01), Lee et al.
patent: 6374116 (2002-04-01), Peterzell et al.
patent: 6701138 (2004-03-01), Epperson et al.
patent: 6718165 (2004-04-01), Ha

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