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:
Jul. 04, 2006
Filed:
Nov. 19, 2003
Applicants:
Shinichiro Koto, Kawasaki, JP;
Tadaaki Masuda, Tokyo, JP;
Inventors:
Shinichiro Koto, Kawasaki, JP;
Tadaaki Masuda, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01); H04N 7/167 (2006.01);
U.S. Cl.
CPC ...
Abstract
A video scramble apparatus has a scrambler for scrambling an input video signal, and a video encoder for performing interframe predictive coding of the video signal after scrambling, and the scrambler selects a frame, which is not used as a reference frame for interframe prediction in the video encoder, from the input video signal, and scrambles the frame by pixel replacing in units of slices within a predetermined vertical range or pixel replacing in units of n consecutive macroblocks within a predetermined horizontal range.