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.
Patent No.:
Date of Patent:
Jan. 13, 2009
Filed:
Apr. 27, 2004
Xiaohai Zhang, Kenmore, WA (US);
Xiaohai Zhang, Kenmore, WA (US);
Other;
Abstract
A peer graph is formed by assigning published identifiers to peer nodes that each map to network addresses. A signed number space is defined based on the published identifiers. Given a key, a closest peer node is determined by maintaining data identifying other peer nodes. Index information identifying the key and an associated value are stored as a pair on a storing peer node. Further key and value pairs are maintained in a local indexing database. Hierarchically structured levels are organized in a peer indexing database as a factor of the number space size. A group identifier is stored at a peer indexing database level determined as a function of the storing peer node, level and number space size factor. The key is hashed as a function of the initial group identifier and number space size factor to identify a closest peer node. Key and value pairs are transiently maintained.