发明名称 |
Compensation for truncation error in a digital video signal decoder |
摘要 |
<p>The apparatus includes a device which produces a DC offset compensation value as a function of accumulated DC offset truncation errors. The compensation value is stored in a first memory (40) in response to a system configuration control signal. A second memory (60) stores a number of compensation values which are provided to the first memory in response to the control signal. The error is a function of the number of truncation stages and of the scale factor by which data at each truncation stage is multiplied relative to the nominal, non-scaled data. The value of the error is measured to produce an output measured value. The measuring device also provides the compensation value a an output with a value approximately equal to the negative of the measured value. The compensation value is added to the signal path to reduce the value of the error.</p> |
申请公布号 |
EP0720370(A2) |
申请公布日期 |
1996.07.03 |
申请号 |
EP19950120376 |
申请日期 |
1995.12.22 |
申请人 |
THOMSON CONSUMER ELECTRONICS, INC. |
发明人 |
KNUTSON, PAUL G.;SHIUE, DONG-CHANG |
分类号 |
H04N5/455;H04N5/16;H04N5/21;H04N5/44;(IPC1-7):H04N7/24 |
主分类号 |
H04N5/455 |
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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