发明名称 |
Verfahren für die Fehlererkennung digitalisierter, datenreduzierter Ton- und Datensignale |
摘要 |
<p>The invention concerns a method of detecting and, if necessary, correcting or masking errors in a digitized data-reduced audio signal consisting of a sequence of data blocks which are to be transmitted or stored, the individual data blocks being, for instance, bit-allocation data, scale-factor selection data, scale factors or encoded sampling values from part-band filtering or transformation in the spectral region, such as Fourier transforms. In this method, one or more received bit patterns for the data units of a data block are graded by their probability of occurrence and, if the probability is low, declared to be erroneous and, if necessary, corrected or masked.</p> |
申请公布号 |
DE4219400(A1) |
申请公布日期 |
1993.12.16 |
申请号 |
DE19924219400 |
申请日期 |
1992.06.13 |
申请人 |
INSTITUT FUER RUNDFUNKTECHNIK GMBH, 80939 MUENCHEN, DE |
发明人 |
SEDLMEYER, ROBERT, 8045 ISMANING, DE;WIESE, DETLEF, 8055 GOLDACH, DE |
分类号 |
G10L19/005;H03M13/00;H03M13/05;H04B1/66;H04H20/88;(IPC1-7):H04L1/00;H04H1/00;H04B1/68 |
主分类号 |
G10L19/005 |
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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