Audio output driver and methods for use therewith

Details Audio output driver and methods for use therewith Audio output driver and methods for use therewith

2005-11-22

2010-10-19

Chin, Vivian (Department: 2614)

Electrical audio signal processing systems and devices

Noise or distortion suppression

Soft switching, muting, or noise gating

Reexamination Certificate

active

07817807

ABSTRACT:
An audio output driver includes an audio amplifier for generating an amplified signal. A virtual ground generator generates a virtual ground signal in response to a virtual ground reference. A combiner produces an output signal, based on the amplified signal and the virtual ground signal, that is coupled to an audio output device. A voltage equalizer equalizes the virtual ground reference and the output signal when the supply voltage compares unfavorably to a supply voltage threshold.

REFERENCES:
patent: 5151942 (1992-09-01), Sasaki
patent: WO2005091497 (2005-09-01), None

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