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Moving file fragments from background file sharing to foreground file sharing and preventing duplicate downloads

  • US 7,617,178 B2
  • Filed: 06/12/2007
  • Issued: 11/10/2009
  • Est. Priority Date: 12/05/2006
  • Status: Active Grant
First Claim
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1. A method in a peer-to-peer file sharing client device for moving a file from background file sharing to foreground file sharing and preventing duplicate downloads in a peer-to-peer file sharing network, the method comprising:

  • receiving, by the peer-to-peer file sharing client device, at least one file fragment of a file from a background swarm for background file sharing;

    responsive to a user-generated request to move the file from background file sharing to foreground file sharing, identifying, by the peer-to-peer file sharing client device, the at least one file fragment stored locally; and

    requesting, by the peer-to-peer file sharing client device, at least one remaining file fragment from the background swarm, wherein the background swarm becomes a foreground swarm, wherein requesting at least one remaining file fragment from the background swarm comprises sending a request to a tracker for a peer list.

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