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. 07, 2010
Filed:
Jun. 27, 2003
Geoffrey T. Dunbar, Kirkland, WA (US);
Kirt Debique, Seattle, WA (US);
Glenn F. Evans, Kirkland, WA (US);
Robin C. B. Speed, Winchester, GB;
Stephen Rowe, Bellevue, WA (US);
Rebecca C. Weiss, Menlo Park, CA (US);
Matthijs Gates, Wellesley, MA (US);
Geoffrey T. Dunbar, Kirkland, WA (US);
Kirt Debique, Seattle, WA (US);
Glenn F. Evans, Kirkland, WA (US);
Robin C. B. Speed, Winchester, GB;
Stephen Rowe, Bellevue, WA (US);
Rebecca C. Weiss, Menlo Park, CA (US);
Matthijs Gates, Wellesley, MA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A system and methods provide handling of variable rate playback in a multimedia computer architecture. The systems and methods provide data structures and interfaces that enable a computer architecture and components therein with the ability to playback data at speeds faster and slower than real-time, to playback data in reverse, and to change the rate of playback at any point during playback. One embodiment is a method for providing low-latency, glitch-free changes in a multimedia architecture. Other embodiments are directed to defining multimedia component responsibilities for making rate changes, allowing rate changes to work with standard playback types, coder-decoders, and renderers. The methods include determining a minimum of the maximum reported playback rates and determining minimum and maximum playback rates in a set of modes including: reverse skip mode, reverse key frame mode, reverse full mode, forward full mode, forward key frame mode, and forward skip mode.