Multilevel data compression using a single compression engine
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United States of America Patent
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Mar 27, 2007
Grant Date -
Jun 26, 2003
app pub date -
Dec 20, 2001
filing date -
Dec 20, 2001
priority date (Note) -
Expired
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Abstract
A single compression engine determines a plurality of discrete cosine transform (DCT) coefficients based on a discrete cosine transform of a plurality of blocks of data. The single compression engine provides first and second DCT-encoded signals. The first DCT-encoded signal uses at most t coefficient bits to represent each of the DCT coefficients. The second DCT-encoded signal uses at most u coefficient bits, where u is less than t, to represent each of the DCT coefficients.
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