发明名称 |
POP NOISE SUPPRESSION APPARATUS AND AUDIO OUTPUT SYSTEM UTILIZING THE SAME |
摘要 |
A pop noise suppression apparatus for eliminating popping noise generated upon initiation or shutdown of an audio output circuit comprises a switch component and a control circuit. The switch component allows the audio output circuit to provide audio through the output of the audio output circuit. The control circuit provides a mute signal for a first period of time in to response initiation or shutdown of the audio circuit. The control circuit comprises a capacitor to be charged upon initiation of the audio output circuit or to be discharged upon shutdown of the audio output circuit. A length of the first period of time during which the mute signal is provided depends on a second period of time to charge or discharge the capacitor.
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申请公布号 |
US2009208032(A1) |
申请公布日期 |
2009.08.20 |
申请号 |
US20080345516 |
申请日期 |
2008.12.29 |
申请人 |
HON HAI PRECISION INDUSTRY CO., LTD. |
发明人 |
WU SHIH-CHIEN |
分类号 |
H04B15/00 |
主分类号 |
H04B15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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