Wireless transmitter having polar loop controller with...

Details Wireless transmitter having polar loop controller with... Wireless transmitter having polar loop controller with...

2005-09-08

2008-12-02

Phu, Sanh D (Department: 2618)

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

C455S127200, C455S127300, C455S115100, C455S121000, C455S126000

Reexamination Certificate

active

07460842

ABSTRACT:
A wireless transmitter (100) including an amplifier (112), an automatic output controller (116) (AOC) having an output coupled to a control signal input. The AOC detects a second amplifier parameter that changes with a change in load impedance during a transmission, and the AOC reduces a change in transmitter output power related to the change in load impedance based on a first parameter and the detected second parameter during the same transmission during which the second parameter was detected.

REFERENCES:
patent: 6701134 (2004-03-01), Epperson
patent: 6701138 (2004-03-01), Epperson
patent: 7109897 (2006-09-01), Levesque
patent: 7196583 (2007-03-01), Clifton et al.
patent: 2002/0090921 (2002-07-01), Midtgaard et al.
patent: 2004/0185809 (2004-09-01), Jenkins
patent: 2005/0064827 (2005-03-01), Schumacher et al.
patent: 2005/0227646 (2005-10-01), Yamazaki et al.
Maxim Integrated Products; “Low-Cost, Low-Voltage, PA power Control Amplifier for GSM Applications in 8-Pin GFN”; pp. 1-7.

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