发明名称 |
Adaptive equalizing circuit and regenerative device using it, and adaptive equalizing method |
摘要 |
An adaptive type equalization circuit and a playback apparatus can be used for the playback of a digital signal. A playback signal is supplied to an analog to digital converter and phase lock loop such that digital conversion of the playback signal is performed. Characteristic information such as a detection signal from an envelope detector to which the playback signal is supplied, a signal showing a phase lock from the phase lock loop is supplied to a data generation circuit together with a playback signal from the analog to digital converter. The playback signal processed in the data generation circuit and its characteristic information are supplied to a processor such tat operation for weighting coefficients is performed. The weighting coefficients operated or calculated in the processor are supplied to a transversal filter so that adaptive equalization processing for the playback signal is performed.
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申请公布号 |
US7206152(B2) |
申请公布日期 |
2007.04.17 |
申请号 |
US20030240385 |
申请日期 |
2003.02.11 |
申请人 |
SONY CORPORATION |
发明人 |
TAKIGUCHI MASAFUMI |
分类号 |
G11B7/00;G11B20/10;H03H21/00;H04B3/06;H04L25/03 |
主分类号 |
G11B7/00 |
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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