Method and apparatus of efficient lossless data stream coding
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United States of America Patent
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Issued Date -
Feb 15, 2007
app pub date -
Aug 15, 2005
filing date -
Aug 15, 2005
priority date (Note) -
Abandoned
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Abstract
The present invention provides method of lossless data stream coding with high coding efficiency. The differential value of adjacent samples are calculated firstly and is coded by a VLC coding, the variable length coding. The VLC coding includes codes representing the quotient and remainder with a marker bit inserted in between. The divider is implicitly encoded and decoded with no code in the coded data stream. For pursuing high performance, at least two VLC encoder and VLD decoder are adopted to encode and decode the samples with one input from one location of the data stream and another input from another location of the data stream and the results saving from one location of the storage device and another result of data stream saving from another location of the storage device.
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