Method and apparatus for DC offset calibration

Details Method and apparatus for DC offset calibration Method and apparatus for DC offset calibration

2006-02-03

2009-10-13

Nguyen, Duc (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Distortion, noise, or other interference prevention,...

C455S114200, C455S296000, C330S259000, C330S270000

Reexamination Certificate

active

07603084

ABSTRACT:
A variable amplifier with adjustable current to correct for DC offset. The variable amplifier includes a zero function, allowing for zeroing of some amplifiers in an amplifier chain during correction for DC offset of another amplifier in an amplifier chain. In some embodiments selectable current injection is provided to an amplifier chain in conjunction with signals from selectable mixers.

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