Producing representative hashes for segments of a file
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United States of America Patent
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Sep 14, 2010
Grant Date -
N/A
app pub date -
Oct 11, 2006
filing date -
Oct 11, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A file is divided into plural segments, and for each of at least some of the plural segments, plural windows covering different portions of the corresponding segment are defined. According to a predefined criterion, one of the windows associated with the corresponding segment is selected. A representative hash based on the portion in the selected window is calculated for representing the corresponding segment.
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