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. 05, 2000
Filed:
Oct. 09, 1997
Eric T Brewer, Saratoga, CA (US);
Andrew Palfreyman, Sunnyvale, CA (US);
FutureTel, Inc., Sunnyvale, CA (US);
Abstract
Disclosed are methods and apparatuses for seeking within audiovisual files. A seeking engine is implemented to efficiently locate target video frames without having to laboriously decode and index each and every video frame in an audiovisual file. Further, a seeking engine is capable of frame accurately determining the number of frames in a video file by identifying the last GOP header in the video file, and then identifying a last video frame in the file. The last video frame in the file is identified by reading each video frame's picture header (i.e., within the last GOP) and determining which picture header produces a larger temporal reference number. The video frame having the largest temporal number is therefore the last video frame in the video file. In addition, the seeking engine is capable of associating an identified video frame with a closest audio frame to complete an audio-to-video seek.