发明名称 |
Circuit arrangement for signal-pause detection |
摘要 |
A circuit arrangement is disclosed which detects a signal pauses in an audio signal, The audio signal is amplified, rectified, and then sent to a control unit. The control unit periodically sets the output of the rectifier to a predetermined level below a threshold level. The control unit then waits a predetermined period of time and determines whether the signal at the output of the rectifier has exceeded the threshold. If is does not, a signal pause has occurred.
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申请公布号 |
US5867044(A) |
申请公布日期 |
1999.02.02 |
申请号 |
US19970847437 |
申请日期 |
1997.04.28 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
MUTZ, ERHARD;KNOBL, KARL-HEINZ |
分类号 |
G11B15/087;G11B27/22;(IPC1-7):H03K5/153;H03K3/017 |
主分类号 |
G11B15/087 |
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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