| US 7,574,515 B2 | ||
| Peer to peer transfer of content | ||
| Wilhelmus Franciscus Johannes Fontijn, Eindhoven (Netherlands); and Nicolaas Lambert, Eindhoven (Netherlands) | ||
| Assigned to Koninklijke Philips Electronics N.V., Eindhoven (Netherlands) | ||
| Appl. No. 10/553,549 PCT Filed Apr. 22, 2004, PCT No. PCT/IB2004/050491 § 371(c)(1), (2), (4) Date Oct. 19, 2005, PCT Pub. No. WO2004/094980, PCT Pub. Date Nov. 04, 2004. |
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| Claims priority of application No. 03101131 (EP), filed on Apr. 24, 2003. | ||
| Prior Publication US 2007/0005797 A1, Jan. 04, 2007 | ||
| Int. Cl. G06F 15/16 (2006.01) | ||
| U.S. Cl. 709—232 [709/203; 709/218] | 12 Claims |
| 1. A method of peer to peer transfer of content, said method comprising the steps of:
transmitting, from a first device, a first request with a first selection criterion for a first content to a server or to
a second device in a peer to peer network;
in said server, in response to receiving said first request, when said server previously has acknowledged said first device
as a legal recipient of said first content:
checking if the first content satisfying said first selection criterion is available in said peer to peer network only on
said server;
if so, transferring the first content to said first device, and noting that said first device subsequently has the requested
first content available for other devices; and
otherwise re-directing said first request to a third device on which the server knows that the requested first content is
still available;
in said third device, in response to receiving said re-directed first request, transferring said first content satisfying
said first selection criterion to said first device;
in said second device, in response to receiving said first request, checking if the first content satisfying said first selection
criterion is available on said second device and has been supplied by said server to said second device or has been approved
by said server for subsequent transfer by said second device;
if so, transferring the first content satisfying said first selection criterion to said first device, and informing the server
that said first content has been transferred to said first device from said second device; and
rewarding the one of said second or third device from which said first content was transferred to said first device, when
content was transferred from one of these; and
charging said first device for reception of said first content.
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