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:
Jun. 22, 1999
Filed:
Aug. 23, 1996
Hans-Erdmann Korth, Stuttgart, DE;
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention describes a process and a device for perception-optimized transmission of video and audio data. The picture coming from a video source is compared with a reference picture. The picture differences are investigated for perception-relevant picture data and transmitted to a receiver in accordance with their priority. If the amount of data required for refreshing exceeds the capacity of the data channel, the less relevant data (lower priorities) is held back. A particular embodiment of the present invention comprises storing the individual pictures as structured difference pictures. The present invention can be applied analogously to the transmission of audio data.