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:
Feb. 10, 2009
Filed:
May. 10, 2004
Jin LI, Beijing, CN;
Hong-hui Sun, Beijing, CN;
HU LI, Beijing, CN;
Qian Zhang, Beijing, CN;
Xianoning Ling, Bellevue, WA (US);
Jin Li, Beijing, CN;
Hong-Hui Sun, Beijing, CN;
Hu Li, Beijing, CN;
Qian Zhang, Beijing, CN;
Xianoning Ling, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Methods and systems for providing random access of structured media content are described. One aspect provides a novel file structure or 'Vfile', and method of using the same, for organizing and managing portions of a structured media content file that are or can be downloaded from a content provider such as a multimedia content server. The Vfile is configured to emulate a server file structure that a server uses to store structured media content files. The Vfile is established at a client location when a client accesses a structured media content file and is used to buffer and cache structured media content file portions. In addition, the Vfile includes one or more media management tags. The tags are used by the client to manage a cache of structured media content file portions that are downloaded from the server.