发明名称 |
Förfarande och kretsanordning för förbättring av upplösningsnoggrannhe ten av digitala signaler |
摘要 |
<p>In digital signals transformed into a frequency domain, inaccuracies occur in the structure of the reproduced video signals due to rounding errors in the calculation of the coefficients with a shortened number of digits. <??>The invention provides a remedy in that the range of numbers of the direct component is transferred into the range of numbers of the alternating components and thus a greater range of numbers is available for the alternating components for the common processing of the direct and alternating components. <??>The invention can be used in digital systems with block-by-block processing in which a rounding of the spectral coefficients is carried out due to a limited number of bits in the calculation. </p> |
申请公布号 |
FI86495(C) |
申请公布日期 |
1992.08.25 |
申请号 |
FI19880003929 |
申请日期 |
1988.08.25 |
申请人 |
DEUTSCHE THOMSON-BRANDT GMBH, |
发明人 |
HARTNACK,WOLFGANG;KEESEN,HEINZ-WERNER;SCHUETZE,HERBERT |
分类号 |
H04B14/00;H04N19/60;(IPC1-7):H04N7/133 |
主分类号 |
H04B14/00 |
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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