发明名称 |
Audio processing system for use in multi-channel audio chip |
摘要 |
An audio processing system for used in a multi-channel audio chip includes a multiplexer, a digital-to-analog converter, a de-multiplexer, a controller and N sample-and-hold circuits. The multiplexer receives N digital signals and outputs the digital signals one by one in a time-division manner. The digital-to-analog converter receives the digital signals from the multiplexer and converts them into corresponding N analog signals. The de-multiplexer outputs the analog signals one by one in a time-division manner. The controller generates control signals to control the selection of the multiplexer and the de-multiplexer. The sample-and-hold circuits hold the analog signals for a predetermined period of time and then outputs the signals, respectively.
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申请公布号 |
US7496417(B2) |
申请公布日期 |
2009.02.24 |
申请号 |
US20030734257 |
申请日期 |
2003.12.15 |
申请人 |
REALTEK SEMICONDUCTOR CORP. |
发明人 |
LEE CHAO-CHENG;HUANG JUI-CHENG |
分类号 |
G06F17/00;H02B1/00;H04S3/00 |
主分类号 |
G06F17/00 |
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