The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 09, 2013

Filed:

Jun. 21, 2010
Applicants:

Yan HU, Beijing, CN;

Yong Xia, Beijing, CN;

Yongqiang Liu, Beijing, CN;

Quan Huang, Beijing, CN;

Inventors:

Yan Hu, Beijing, CN;

Yong Xia, Beijing, CN;

Yongqiang Liu, Beijing, CN;

Quan Huang, Beijing, CN;

Assignee:

NEC (China) Co., Ltd., Beijing, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 16/02 (2009.01);
U.S. Cl.
CPC ...
Abstract

The invention provides a server, a method and a system for providing node information for P2P network. A server in a peer-to-peer (P2P) network comprises: a location information storage unit which stores coordinate information indicating a coordinate of each data node in the P2P network in a coordinate system that is created based on communication delays among data nodes in the P2P network; and a node information providing unit which, upon receipt of a request for information on data nodes having a first data item, selects one or more data nodes from data nodes having the first data item based on the coordinate information, and provides information indicating the selected one or more data nodes.


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