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:
Aug. 16, 2005
Filed:
Sep. 23, 2003
James E. Roddy, Rochester, NY (US);
Robert J. Zolla, Rochester, NY (US);
Louis S. Horvath, Rochester, NY (US);
James E. Roddy, Rochester, NY (US);
Robert J. Zolla, Rochester, NY (US);
Louis S. Horvath, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A printing method and apparatus () for pre-exposing a digital watermark along a length of photosensitive medium at the time of manufacture is disclosed. The printing apparatus has an illumination source () for providing an exposure illumination, first and second LCD spatial light modulators () for modulating the exposure illumination to form first and second exposure patterns according to image data, combining optics providing a single output path for directing both first and second exposure patterns onto the photosensitive medium and transport means for providing, during exposure, lengthwise displacement of the photosensitive medium with respect to the output path. The first and second exposure patterns form, lengthwise along the photosensitive medium, a latent image with modulated stripes having a predetermined intensity corresponding to the exposure patterns.