Audio device for reducing pop noise and processing method thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11114984
APP PUB NO 20200252030A1
SERIAL NO

16520999

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Abstract

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An audio device for reducing pop noise is adapted to compensate for a direct current (DC) offset of an audio source signal and output the audio source signal to an audio playing device. The audio device includes a linear operation circuit, an adder, a digital-to-analog circuit, and an amplification circuit. The digital-to-analog circuit is coupled between the adder and the amplification circuit. The linear operation circuit generates a DC offset value based on a linear equation, a temperature parameter, a slope parameter, and a constant. The adder is configured to process an input signal and the DC offset value to generate a calibration signal. The digital-to-analog circuit is configured to convert a calibration signal in a digital form to a calibration signal in an analog form. The amplification circuit is configured to process the calibration signal in the analog form to output the audio source signal.

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Patent Owner(s)

Patent OwnerAddress
REALTEK SEMICONDUCTOR CORP2 INNOVATION RD II SCIENCE PARK HSINCHU

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lin, Che-Hung Hsinchu, TW 35 88
Lin, Shih-Hsin Hsinchu, TW 3 1
Tu, Yi-Chang Hsinchu, TW 19 187

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