Decompression system and method for DCT-base compressed graphic data with transparent attribute
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United States of America Patent
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Jun 11, 2013
Grant Date -
May 27, 2010
app pub date -
Nov 25, 2009
filing date -
Nov 26, 2008
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Abstract
A decompression system for DCT-base compressed graphic data with transparent attribute includes a memory to store a compressed graphic data and a compressed mask data; a controller to read the compressed graphic data and the compressed mask data out of the memory; a first decompressor to decompress the compressed graphic data and generate a first color space image signal; a color space transformation device to transform the first color space image signal into a second color space image signal; a special color signal storage to store a plurality of special color signals; a second decompressor to decompress the compressed mask data and generate a select signal; and a first multiplexer to select the second color space image signal or a special color signal to output based on the select signal, wherein each special color signal indicates a different level of transparent attribute.
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