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:
Oct. 20, 2009
Filed:
Jun. 08, 2004
Shirish Gadre, Fremont, CA (US);
Pattabiraman Subramanian, Santa Clara, CA (US);
Chungkuang P. Chu, San Jose, CA (US);
Ikuo Tsukagoshi, Tokyo, JP;
Shirish Gadre, Fremont, CA (US);
Pattabiraman Subramanian, Santa Clara, CA (US);
Chungkuang P. Chu, San Jose, CA (US);
Ikuo Tsukagoshi, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Sony Electronics, Inc., Park Ridge, NJ (US);
Abstract
An apparatus and method of detecting scene changes within a video frame sequence. A video data frame pixel array is partitioned into pixel groups within a frame difference engine. Video data matching of each pixel group is compared between a preceding and following video frame. By way of example pixel group matching can be determined in response to comparing the sums of absolute pixel luminance and/or chrominance differences between corresponding pixels in corresponding pixel groups within the sequential frames against a threshold value. If an insufficient number of pixel groups match, then a scene change signal is output, such as to the encoder which decides whether to encode the entire frame or changes from prior frames. A media communication system is also described, preferably implemented within an SoC, which wirelessly communicates encoded video data for substantially simultaneous viewing by a receiver.