发明名称 |
System for the digital processing of an acoustic or electrical signal, and telephone set provided with such a processing system |
摘要 |
The system for digitally processing an acoustic signal is arranged in a telephone set provided with a loudspeaker and a microphone, between the loudspeaker and the microphone. The system has an automatic gain control circuit associated with an echo cancellation device. It also comprises calculation means which are configured to apply a transfer function of the automatic gain control means to the echo cancellation device input, so that the signal from the microphone and the signal for the loudspeaker are each manipulated by a function comprising the same term, corresponding to the transfer function of the automatic gain control means.
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申请公布号 |
US2006204020(A1) |
申请公布日期 |
2006.09.14 |
申请号 |
US20050557839 |
申请日期 |
2005.11.21 |
申请人 |
LE TOURNEUR GREGOIRE;CHANY PATRICK |
发明人 |
LE TOURNEUR GREGOIRE;CHANY PATRICK |
分类号 |
H04B15/00;H04M9/08 |
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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