Method and apparatus for window matching in delta compressors

Details Method and apparatus for window matching in delta compressors Method and apparatus for window matching in delta compressors

H - Electricity

03

M

H03M 7/32 (2006.01) H03M 7/30 (2006.01)

Patent

CA 2475189

The present invention provides efficient target file window matching within the source file for delta compressors. One embodiment provides an apparatus for matching target file windows of a target file with source file windows of a source file in delta compressors, comprising: means for partitioning the source file into a plurality of source file windows; means for partitioning the target file into a plurality of target file windows; and means for matching one of said plurality of source file windows with one of said target file windows based upon a distance function that defines a distance between a data segment of said one of said plurality of source file windows and a data segment of said one of said target file windows using a respective n-gram of said data segments.

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