发明名称 |
AUDIO PROCESSING CIRCUIT AND METHOD |
摘要 |
An audio processing circuit includes a clock synthesizer, a clock divider, a digital interpolator module, a sampling rate converter and a digital-to-analog converter. The clock synthesizer generates a base clock signal according to a sampling clock signal and a first reference clock signal. The clock divider generates a multiple frequency clock signal according to the base clock signal. The digital interpolator module interpolates a digital audio data according to the multiple frequency clock signal. The sampling rate converter processes the interpolated digital audio data into a re-sampled digital audio data according to the multiple frequency clock signal and a second reference clock signal. The digital-to-analog converter is coupled to the sampling rate converter for converting the re-sampled digital audio data into an analog audio signal according to the second reference clock signal.
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申请公布号 |
US2007299552(A1) |
申请公布日期 |
2007.12.27 |
申请号 |
US20060612113 |
申请日期 |
2006.12.18 |
申请人 |
MSTAR SEMICONDUCTOR, INC. |
发明人 |
CHANG ZHI-REN;HSIEH SHIN-ING;HSU KUO-FENG;LAN CHI-HAN;CHANG HORNG-DER |
分类号 |
G06F17/00 |
主分类号 |
G06F17/00 |
代理机构 |
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代理人 |
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