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. 12, 2002
Filed:
Mar. 16, 1998
Simon Blanchard, Taipei, TW;
U.S. Philips Corporation, New York, NY (US);
Abstract
A video recording and logging device includes apparatus to detect scene changes (as distinct from shot cuts or edit points) in audio/video signals. The apparatus includes a filtering arrangement which receives and filters the audio soundtrack accompanying the video signal to periodically determine a background audio signal level. A scene change is indicated when the current background audio level differs from a previous background level by more than a predetermined amount. A short cut or edit point presented near the indicated scene change is identified as the scene change. Preferably changes in background noise distant from shot cuts and edit points are ignored. A table of scene change locations may then be built up and stored with the video and audio data. An editing facility presents scene changes as the first picture in the scene and allows scene change identifications to be added, deleted or labeled by a human editor.