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:
Mar. 12, 2012
Filed:
Oct. 15, 2001
Applicants:
Keiji Kanota, Kanagawa, JP;
Tadashi Ezaki, Tokyo, JP;
Teruhiko Kori, Kanagawa, JP;
Satoshi Tsuchiya, Kanagawa, JP;
Inventors:
Keiji Kanota, Kanagawa, JP;
Tadashi Ezaki, Tokyo, JP;
Teruhiko Kori, Kanagawa, JP;
Satoshi Tsuchiya, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/80 (2005.12);
U.S. Cl.
CPC ...
Abstract
A video signal is processed to selectively permit copying by superposing in that portion of the video signal which does not contain useful picture information a copyright information signal indicative of whether the viewable picture that is displayed from the video signal is subject to copyright and a copy generation signal indicative of the number of successive generations of copies that can be made from the video signal.