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. 17, 2004
Filed:
Mar. 03, 2000
Stefan Eckart, Mountain View, CA (US);
Fabio Ingrao, San Francisco, CA (US);
Richard W. Webb, Cupertino, CA (US);
Xiaohua Yang, San Jose, CA (US);
Michael Lightstone, Fremont, CA (US);
ATI International Srl, Christchurch, BB;
Abstract
A method and apparatus for indexing and locating key frames in streaming frame data and variable-frame-length data is described. Fast and efficient location of desired key frames in both directions (e.g., forward/backward, future/past) is provided. An estimate of the distance to the desired key frame is made and a seek performed according to that distance. At the location specified by the seek, key frame seek assist data are obtained. The desired key frame is located or a new seek is performed, depending on the key frame seek assist data obtained. By placing the key frame seek assist data at readily identifiable locations, efficient location of key frames is provided. The key frame seek assist data may be tailored to optimize efficiency for seeking in a particular direction, for example, backwards. The seek process is correspondingly configured to favor seeking in the more efficient direction.