TDVC-to-MELP transcoder
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United States of America Patent
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Jan 13, 2004
Grant Date -
Mar 13, 2003
app pub date -
Nov 26, 2001
filing date -
Apr 2, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The system and method of the present invention comprises a compressed domain universal transcoder that transcodes a bit stream representing frames of data encoded according to a first compression standard (TDVC coding standard) to a bit stream representing frames of data according to a second compression standard (MELP coding standard). The method includes decoding a bit stream into a first set of parameters compatible with a first compression standard. Next, the first set of parameters are transformed into a second set of parameters compatible with a second compression standard without converting the first set of parameters to an analog or digital waveform representation. Lastly, the second set of parameters are encoded into a bit stream compatible with the second compression standard.
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