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Simplified Digital Subband Coders And DecodersSimplified digital subband coders and decoders developed for use in converting digitized samples of source signals into compressed and encoded forms that maintain integrity of source signals while enabling transmission at low data rates. Examples of coding methods used in subbands include coarse quantization in high-frequency subbands, differential coding, predictive coding, vector quantization, and entropy or statistical coding. Encoders simpler, less expensive and operate rapidly enough to process video signals.
Document ID
19940000499
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Glover, Daniel R. (NASA Lewis Research Center, Cleveland, OH.)
Date Acquired
August 16, 2013
Publication Date
September 1, 1994
Publication Information
Publication: NASA Tech Briefs
Volume: 18
Issue: 9
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
LEW-15310
Accession Number
94B10499
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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