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File synchronisation

  • US 20040073560A1
  • Filed: 08/28/2003
  • Published: 04/15/2004
  • Est. Priority Date: 03/27/2001
  • Status: Active Grant
First Claim
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1. A method of synchronising data held in a respective plurality of files in each of a plurality of data stores comprising:

  • determining a file structure of a first of said data stores to create a first new tree;

    determining a file structure of a second of said data stores to create a second new tree;

    comparing a previously created first tree (if any) held in said first data store with a previously created second tree (if any) held in said second of said data store to determine which was earliest created; and

    comparing the earliest created of said trees with each of said first new tree and said second new tree to determine which files or folders are differentiated from a previous synchronisation between the two data stores;

    causing differentiated files or folders to be updated in either the first or the second data store either by deleting files from one store or copying a later file version or new file from one of said stores to the other of said stores in dependence upon the comparison result and storing the first and second new trees in their respective data stores for subsequent synchronisations.

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