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:
Sep. 13, 2011
Filed:
Jun. 27, 2008
Ravi T. Rao, Redmond, WA (US);
Khaja E. Ahmed, Bellevue, WA (US);
R. Scott Briggs, Redmond, WA (US);
Scott A. Plant, Bellevue, WA (US);
Ravi T. Rao, Redmond, WA (US);
Khaja E. Ahmed, Bellevue, WA (US);
R. Scott Briggs, Redmond, WA (US);
Scott A. Plant, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Described is a technology in which client content requests to a server over a wide area network (WAN) are responded to with hash information by which the client may locate the content among one or more peer sources coupled to the client via a local area network (LAN). The hash information may be in the form of a segment hash that identifies multiple blocks of content, whereby the server can reference multiple content blocks with a single hash value. Segment boundaries may be adaptive by determining them according to criteria, by dividing streamed content into segments, and/or by processing the content based on the content data (e.g., via RDC or content/application type) to determine split points. Also described is content validation using the hash information, including by generating and walking a Merkle tree to determine higher-level segment hashes in order to match a server-provided hash value.