Muting circuit for computer having dual audio boards

Details Muting circuit for computer having dual audio boards Muting circuit for computer having dual audio boards

2006-11-28

2006-11-28

Kuntz, Curtis (Department: 2614)

Electrical audio signal processing systems and devices

Switching

Reexamination Certificate

active

07142679

ABSTRACT:
The invention relates to a Muting Circuit used to control the path of signal flow for the amplified audio signals from an audio CODEC in a dual audio subsystem. More specifically, to the muting control of the rear and front panel head phone/line out and microphone connectors for the audio subsystem of a standard PC system. The present invention implements muting on the headphone1line-out jacks while allowing the Front Audio Board to be optional without the need for jumpers.

REFERENCES:
patent: 3873905 (1975-03-01), Marek
patent: 5570427 (1996-10-01), Nishioka
patent: 6007228 (1999-12-01), Agarwal et al.
patent: 6154548 (2000-11-01), Bizzan
patent: 6928175 (2005-08-01), Bader et al.

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