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:
Jan. 27, 2015
Filed:
Jun. 19, 2012
Andrew F. Kurtz, Macedon, NY (US);
Kurt M. Schroeder, Spencerport, NY (US);
Majid Rabbani, Pittsford, NY (US);
Andrew F. Kurtz, Macedon, NY (US);
Kurt M. Schroeder, Spencerport, NY (US);
Majid Rabbani, Pittsford, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A method for providing digital watermarking for text or images that uses spectral edge marking materials () printed on a print media () to embed hidden data (). The spectral edge markers () have an absorption spectrum at the edge of the human visible spectrum, either at the UV edge or IR edge, which provides an optical density that is generally imperceptible to humans, but which can be detected by an image capture device (). The crosstalk of visible optical absorption provided by these materials is largely masked by the presence of visible colorant(s) (), with only small color differences between areas with and without the spectral edge markers (). The image capture device () has a visible spectral response that extends into a spectral region just outside the visible spectrum where the spectral edge marker absorption occurs, and can be operated to detect the hidden data.