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Method and apparatus for synchronizing data stores with respect to changes in folders

  • US 6,721,871 B2
  • Filed: 04/02/2002
  • Issued: 04/13/2004
  • Est. Priority Date: 04/02/2002
  • Status: Active Grant
First Claim
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1. A method, for use by a first sync agent (11b 12b) operative in association with a first data store (11c 12c) and by a second sync agent (11b 12b) operative in association with a second data store (11c 12c), by which the first data store (11c 12c) is synchronized with the second data store (11c 12c), the data stores (11c 12c) each being used for storing data as data units in folders by a first and second respective application (11a 12a) distinct from the first and second sync agents (11b 12b), the folders in combination defining a data structure, the method comprising:

  • a step (31a) in which the first and second sync agents (11b 12b) establish a transport connection (14) for enabling communication between the first and second sync agents (11b 12b); and

    a step (31e 31j) in which the second sync agent (11b 12b) communicates via the transport connection (14) a message (21) to the first sync agent (11b 12b), the message (21) expressed using a markup language and having at least one data identification element (2627) embedded in a non-data element field of a protocol command element;

    wherein information about a change in the data structure of the first or second data store (11c 12c) includes identification of folders, in the information is transmitted in said message; and

    further wherein said information about a change in the data structure of the first or second data store (11c 12c) is placed in the at least one data identification element (2627).

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