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:
May. 03, 2011
Filed:
Apr. 27, 2004
Applicants:
David Jay Duffield, Indianapolis, IN (US);
William Bennett Hogue, Simi Valley, CA (US);
Inventors:
David Jay Duffield, Indianapolis, IN (US);
William Bennett Hogue, Simi Valley, CA (US);
Assignee:
Thomson LIcensing, Boulogne-Billancourt, FR;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus for marking a film copy includes a mapper and a coder. The mapper maps a print identifier to be associated with the film copy into a serial number comprising a sequence of J numbers. The coder creates at least two-error correcting numbers, e.g. Y and Z, as a function of one, or more, of the J numbers. The film copy is then marked in accordance with L numbers, which comprise at least the two-error correcting numbers Y and Z.