Data compression device, data compression method, and medium
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United States of America Patent
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Jan 28, 2014
Grant Date -
Nov 8, 2012
app pub date -
Mar 3, 2010
filing date -
Mar 3, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A prediction error calculation part calculates a prediction error for each input data. A prediction error encoding part generates a prediction error code by encoding the value of the prediction error. A run-length counting part counts the run-length of the prediction error. When the value of the prediction error changes, a run-length encoding part generates a run-length code by encoding the run-length counted. A code connecting part generates a connected code by connecting the run-length code to the prediction error code of a corresponding prediction error. When the value of the prediction error is a particular value, a prediction error checking part selects a connected code for the prediction error, as an output code. When the value of the prediction error is a different value, the prediction error checking part selects a prediction error code for the prediction error, as an output code. A code output part outputs the output code selected.
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