System and method for reducing audible artifacts in an audio...

Details System and method for reducing audible artifacts in an audio... System and method for reducing audible artifacts in an audio...

2007-06-12

2007-06-12

Choe, Henry (Department: 2817)

Amplifiers

Combined with automatic amplifier disabling switch means

C330S12400D

Reexamination Certificate

active

11122435

ABSTRACT:
An amplifier system can include a biasing amplifier that provides a first amplified signal to a DC blocking element that is connected with a load based on a first control signal. A power amplifier provides a second amplified signal for driving the load based on a second control signal. A control system controls the biasing amplifier to charge the DC blocking element so as to mitigate a voltage drop across the load (e.g., to substantially eliminate audible artifacts) when the power amplifier is activated to provide the second amplified signal.

REFERENCES:
patent: 5872481 (1999-02-01), Sevic et al.
patent: 6137355 (2000-10-01), Sevic et al.
patent: 6784744 (2004-08-01), Tichauer

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