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Retrieving media items to a mobile device

  • US 7,668,536 B2
  • Filed: 08/05/2003
  • Issued: 02/23/2010
  • Est. Priority Date: 08/06/2002
  • Status: Active Grant
First Claim
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1. A method of retrieving a data item to a mobile device carried by a first user visiting a real-world space, the data item being available from a service system to mobile devices of users visiting the space, the method comprising:

  • (a) keeping a record on an on-going basis of which mobile devices in said space, if any, hold or are likely to be holding the data item;

    (b) seeking to retrieve the data item to the first user'"'"'s mobile device by requesting transfer only from mobile devices that, according to said record, hold or are likely to be holding the data item; and

    (c) in the event that (b) is unsuccessful, retrieving the data item to the first user'"'"'s mobile device by transfer from the service system.

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