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:
Aug. 20, 2002
Filed:
Dec. 03, 1998
Shigeru Akahane, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
Video information can be smoothly played back without producing a frame jump even if an externally-instructed playback velocity changes every moment. The present invention comprises a hard disk for storing video information D corresponding to n frames therein, two buffer memories A and B for respectively inputting video information D corresponding to continuous m frames therein and outputting the video information D while changing writing and reading, means for reproducing the video information D , and a CPU for alternately writing video information D into the memories A and B based on the playback velocity so that video information D corresponding to several frames overlap, determining a slow reproducible playback velocity range according to the video information D , correcting the playback velocity so as to fall within the playback velocity range, and thereafter reading the video information D into the reproducing means from the memories A and B based on the corrected playback velocity.