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:
Jul. 05, 2011
Filed:
Sep. 24, 2004
Aravind C. Agrahara, Fremont, CA (US);
Aravind C. Agrahara, Fremont, CA (US);
Magnum Semiconductor, Inc., Milpitas, CA (US);
Abstract
The optimal buffering strategy of the present invention allows for full smooth reverse functionality in an MPEG-type stream player, while reducing the buffering requirements. Furthermore, the buffering strategy drastically reduces the required number of passes through the video data unit by optimal scheduling of picture decodes. A video data unit buffering strategy for smooth reverse includes the following operations. First, a video data unit is scanned before decoding any pictures within the video data unit. Positions of each picture are then marked out in the video data unit. Next, the entire video data unit is decoded, except the open GOP pictures which need a reference picture from an adjacent video data unit. The open GOP pictures are then copied to the end of the current video data unit in the buffer, and the new video data unit continues to be fetched.