Method for switching audio signals and the device of the same

Details Method for switching audio signals and the device of the same Method for switching audio signals and the device of the same

2007-09-11

2007-09-11

Mei, Xu (Department: 2615)

Electrical audio signal processing systems and devices

Switching

C381S081000

Reexamination Certificate

active

11159787

ABSTRACT:
The method and apparatus are provided for several audio signal processing apparatuses to share at least one audio output device. Several audio signals sent from the audio signal processing apparatuses are received. The DC levels of the audio signals are shifted to a predetermined value. One of the adjusted audio signals is then selected for signal-transmitting to the audio output device. Afterwards, the DC level of the selected audio signal is re-adjusted to the predetermined value.

REFERENCES:
patent: 4979217 (1990-12-01), Shipley
patent: 6934398 (2005-08-01), Chen
patent: 2003/0026440 (2003-02-01), Lazzeroni et al.

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