发明名称 |
DEVICE FOR DETERMINING THE QUALITY OF AN OUTPUT SIGNAL TO BE GENERATED BY A SIGNAL PROCESSING CIRCUIT, AND ALSO METHOD |
摘要 |
A device for determining the quality of an output signal originating from a signal processing circuit is provided with a first series circuit for receiving the output signal and with a second series circuit for receiving a reference signal and generates an objective quality signal by means of a combining circuit coupled to the two series circuits. The poor correlation between said objective quality signal and a subjective quality signal can be improved by inside the combining circuit comparing a differential signal which has been integrated with respect to frequency with a predefined value and then in dependence of a comparison result integrating it with respect to time or not, and/or comparing a quality signal associated with a left channel with a quality signal associated with a right channel and selecting the quality signal having the largest value and modifying it in dependence of integrated differential signals.
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申请公布号 |
WO9744779(A1) |
申请公布日期 |
1997.11.27 |
申请号 |
WO1997EP02712 |
申请日期 |
1997.05.16 |
申请人 |
KONINKIJKE PTT NEDERLAND N.V.;BEERENDS, JOHN, GERARD |
发明人 |
BEERENDS, JOHN, GERARD |
分类号 |
G10L11/00;G10L19/00;G10L19/02;G10L25/69;H03M7/30;(IPC1-7):G10L5/00 |
主分类号 |
G10L11/00 |
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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