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, 2002
Filed:
Aug. 17, 1999
Xintong Zhang, Wakefield, MA (US);
R. German Linares, Bedford, NH (US);
Jonathan Devor, Newton, MA (US);
Mohanan Unni, Winchester, MA (US);
Kenneth G. Berquist, Andover, MA (US);
Inspectron Corporation, Chelmsford, MA (US);
Abstract
A method for encoding, on an imprintable medium, identification information for identifying the imprintable medium in a manner detectable by a print-monitoring system includes the steps of defining an identification pattern. The identification pattern is imprinted on a print control region so as to be relatively inconspicuous to an unaided human reviewer of the printed matter while remaining detectable to a print monitoring system. The method includes the step of imprinting, at a plurality of locations in the print control region, a plurality of bit characters detectable by the print control system. The spatial distribution of the bit characters encodes information about the identity of the document.