Method and Apparatus for Producing a Desired Data Compression Output
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United States of America Patent
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Issued Date -
May 21, 2009
app pub date -
Nov 15, 2007
filing date -
Nov 15, 2007
priority date (Note) -
Abandoned
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Abstract
A method and apparatus for testing the functionality of a data decoder is provided. The functionality of a decoder is examined through the used of a functional bitstream. The functional bitstream is a bitstream which when decoded by a properly functioning decoder, produces a desired output. Such a bitstream can be created by receiving an input bitstream, compressing the input bitstream, thereby creating a compressed input bitstream. The compressed input bitstream is then decompressing, thereby creating an intermediate bitstream. The intermediate bitstream is then compressed, thereby creating a compressed intermediate bitstream. The compressed intermediate bitstream is then decompressed, thereby creating an output bitstream. Finally, a comparison is performed to determine if the output bitstream is equivalent to a desired bitstream.
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