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:
Dec. 04, 2012
Filed:
Feb. 08, 2010
Eduardo P. Oliveira, Redmond, WA (US);
Geoffrey Dunbar, Kirkland, WA (US);
James M. Alkove, Woodinville, WA (US);
Eduardo P. Oliveira, Redmond, WA (US);
Geoffrey Dunbar, Kirkland, WA (US);
James M. Alkove, Woodinville, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A stream of content has multiple sub-streams, where each sub-stream comprises a part of the content and is divisible into logical blocks bounded by intrinsic partitions. For each sub-stream, a specification of the logical blocks bounded by the intrinsic partitions is defined and the sub-stream is divided into the logical blocks bounded by the intrinsic partitions. Each divided logical block is encrypted and then divided into one or more portions to produce corresponding pieces of data, and each piece of data is placed into a data packet as a payload thereof. Each data packet is transmitted to a recipient thereof, and the recipient can retrieve the pieces of data from the payloads of the packets, reconstruct the encrypted logical blocks, and manipulate the sub-stream on a per-logical block basis without necessarily decrypting each encrypted logical block.