Electrical audio signal processing systems and devices – Including amplitude or volume control – Automatic
Reexamination Certificate
2011-07-05
2011-07-05
Kuntz, Curtis (Department: 2614)
Electrical audio signal processing systems and devices
Including amplitude or volume control
Automatic
C381S056000, C700S094000, C455S232100, C073S900000
Reexamination Certificate
active
07974421
ABSTRACT:
An audio signal processing method includes: controlling the volume of a digital audio signal according to a latest value of an adaptive gain value which is adjustable; detecting whether data carried by the digital audio signal satisfies a specific criterion and utilizing a pendulum counter to count a number of times the data carried by the digital audio signal satisfies the specific criterion; if the counter value of the pendulum counter reaches an upper bond, selectively decreasing the adaptive gain value according to a decrement to decrease the volume of the digital audio signal; and if the counter value of the pendulum counter reaches a lower bond, selectively increasing the adaptive gain value according to an increment to increase the volume of the digital audio signal, where the magnitude of the decrement and the magnitude of the increment are different from each other.
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Chiu Chung-Ko
Ho Po-Chang
Liao Che-Wei
Wei Hung-Chuan
Elbin Jesse A
Hsu Winston
HTC Corporation
Kuntz Curtis
Margo Scott
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