Electrical audio signal processing systems and devices – Including amplitude or volume control
Reexamination Certificate
2005-09-06
2005-09-06
Isen, Forester W. (Department: 2644)
Electrical audio signal processing systems and devices
Including amplitude or volume control
C381S105000, C381S107000
Reexamination Certificate
active
06940986
ABSTRACT:
An apparatus and method for remotely and automatically adjusting the volume of a remotely controlled audio device. In one embodiment, the apparatus comprises a sensor circuit for continuously detecting audio signals generated by the audio device, a difference circuit for determining the difference between the amplitude of the detected audio signals and a reference audio signal amplitude and for outputting a signal that represents this difference, a difference signal transfer circuit having an input for receiving the difference signal and an output wherein the difference signal is coupled to the output when the sensor circuit outputs a signal that indicates an audio signal has been detected, and a control circuit for generating a control signal that effects attenuation, augmentation or maintenance of the amplitude of the audio signals generated by the audio device in accordance with the difference signal when the sensor circuit detects an audio signal.
REFERENCES:
patent: 6584201 (2003-06-01), Konstantinou et al.
patent: 2002/0057804 (2002-05-01), Mellott
Belenger Robert V.
Lopriore Gennaro R.
Chau Corey
Isen Forester W.
Kasischke James M.
Nasser Jean-Paul A.
Oglo Michael F.
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