Lossless audio coding/decoding apparatus and method
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United States of America Patent
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Oct 20, 2009
Grant Date -
Nov 20, 2008
app pub date -
Apr 11, 2008
filing date -
May 17, 2007
priority date (Note) -
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Abstract
Provided are a lossless audio coding/decoding apparatus and method. The lossless audio coding apparatus includes a first coder to directly code first symbols; a second coder module comprising a plurality of second coders to convert the first symbols into second symbols and to code the second symbols; a first selector to compare the performance of the first coder to the performance of the second coders and to output a coding mode in accordance with a comparison result; and a second selector to output a final bitstream by coding the first symbols in correspondence with the coding mode. According to the present invention, the performance of audio coding may be improved.
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