Detection of Patterns
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United States of America Patent
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Issued Date -
Jan 7, 2010
app pub date -
Oct 10, 2007
filing date -
Oct 10, 2006
priority date (Note) -
Abandoned
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Abstract
A method of detecting patterns in a plurality of data blocks, comprising generating a first database comprising a first subset of patterns of a set of selected patterns, generating a second database comprising a second subset of remaining patterns of the set of selected patterns, receiving the plurality of data blocks, and, for each data block, using the data, block and a hash function to generate a key, using the key to search the first database, locating an entry of the first database corresponding to the key, reading the content of the entry which comprises zero or a selected pattern that generates the key, if the content of the entry comprises zero, determining that the data block does not comprise a selected pattern, and outputting a first output indicating that the data block does not comprise a selected pattern.
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