Transmitting apparatus

Details Transmitting apparatus Transmitting apparatus

2005-03-11

2008-07-08

Lee, John J. (Department: 2618)

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

C455S126000, C455S115100, C455S522000

Reexamination Certificate

active

07398064

ABSTRACT:
The present invention provides a transmitting apparatus equipped with a modulator, a frequency converter that up-converts a modulated signal (or digital IF signal) of a baseband, and an amplifier that amplifies a transmit signal lying in a radio frequency band to a desired signal level. In the transmitting apparatus, a controller including a level determinater and a bias setter is provided with a limiter setter. The level determinater and bias setter of the controller setter perform dynamic bias control of the amplifier. Further, the limiter setter changes the setting of a threshold value of the limiter according to an average level of an input signal.

REFERENCES:
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patent: 6603980 (2003-08-01), Kitagawa et al.
patent: 2001/0027113 (2001-10-01), Hayashihara
patent: 2004/0124933 (2004-07-01), Kang et al.
patent: 2004/0233000 (2004-11-01), Stevenson et al.
patent: 2002-176368 (2002-06-01), None
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patent: 2003-258693 (2003-09-01), None
patent: 2004-500781 (2004-01-01), None
patent: WO 01/73975 (2001-10-01), None
patent: WO2005/002099 (2005-01-01), None

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