Data encoding device and data decoding device
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United States of America Patent
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Apr 6, 2004
Grant Date -
Jul 24, 2003
app pub date -
Jan 15, 2003
filing date -
Jan 18, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A data encoding device and a data decoding device. A data encoding device refers to first and second encoding tables to search for a code word correlated with encoding data. One of the code words is selected according to predetermined criteria. When the selected code word requires additional information, additional information is generated. A data decoding device refers to the first and second encoding tables and retrieves a data element from at least one of the tables. When additional information is available, original data is calculated based on the data element and the additional information. When additional information is not available, the retrieved data element is output without modification as original data.
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