Data processing: speech signal processing – linguistics – language – Audio signal bandwidth compression or expansion
Reexamination Certificate
2006-09-05
2006-09-05
Chawan, Vijay B. (Department: 2626)
Data processing: speech signal processing, linguistics, language
Audio signal bandwidth compression or expansion
C704S200100, C386S349000, C386S349000, C386S349000, C375S240120, C348S415100
Reexamination Certificate
active
07103554
ABSTRACT:
In a method for producing a data stream of code words of variable lengths which are divided up into a plurality of sets of code words, wherein a raster having segments is specified for the data stream, wherein two adjacent raster points define a segment, code words of the first sets are written into the data stream starting at raster points. Subsequently, code words of the second set are written into the data stream pursuant to a predetermined assignment rule, wherein each code word of the second set is assigned to a different segment. Entire code words or parts of code words which cannot be written according to their assignment, are stored and entered into the data stream in further attempts, wherein the assignment by a predetermined regulation is changed from attempt to attempt. This procedure is analogously repeated for any further set which may be present. Thus, the ends of code words of the second set are decoupled from the starts of following code words of the second set, since the corresponding code words of a set are written segment by segment, which results in a reduction of error propagation.
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Dietz Martin
Lauber Pierre
Schug Michael
Sperschneider Ralph
Chawan Vijay B.
Fraunhofer-Gesellschaft zue Foerderung der angewandten Forschung
Glenn Michael A.
Glenn Patent Group
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