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Processing software images for use in generating difference files

  • US 20040260734A1
  • Filed: 06/20/2003
  • Published: 12/23/2004
  • Est. Priority Date: 06/20/2003
  • Status: Active Grant
First Claim
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1. A system for updating electronic files comprising:

  • a first device for generating difference files that include coded differences between an original version and a new version of an electronic file, wherein the first device includes at least one component that reduces a size of the difference file by;

    identifying differences between the original and the new versions corresponding to address shifts resulting from at least one of code line deletion, code line addition, and code line modification;

    removing the identified differences in text sections common to the original and the new versions by modifying target addresses of instructions of the original version using at least one relationship between addresses of text sections of the original version and corresponding text sections of the new version;

    generating a modified version of the original file that includes the instructions having modified target addresses; and

    a second device that receives the difference file and generates a version of the new file in the second device using the difference file.

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