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:
Nov. 20, 2018
Filed:
Mar. 28, 2017
International Business Machines Corporation, Armonk, NY (US);
Edward Altenburger, Winchester, GB;
Benjamin A. Confino, Chandler's Ford, GB;
Gordon D. Hutchison, Eastleigh, GB;
Fenghui Jiang, Eastleigh, GB;
Geoffrey S. Pirie, Nomansland, GB;
Ashley Robertson, Chandler's Ford, GB;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
Methods and systems are provided for integrity verification of an audio-visual data stream. The method includes inserting a watermark into a frame of the visual data stream or into an audio window of a corresponding audio data stream, where the watermark includes: a hash code of the previous frame of the visual data stream and a hash code of the audio window of the audio data stream, and where the audio window corresponds in time to the previous frame of the visual data stream.