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:
Nov. 23, 2004
Filed:
Jul. 25, 2000
Makio Gotoh, Nara, JP;
Kazuyuki Hamada, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In a copier, a specific pattern being hardly recognizable by human eyes but recognizable by a recognizing means is added onto a color image to be printed on a recording medium in order to clearly indicate that the printed image is a copy image. RGB-color image data is converted by a post processing portion of an image processing unit into YMCK color image data. An additional color forming unit calculates color data YaMaCaKa of a specific pattern received from a specific pattern generating unit based on the RGB-color image data. A combining unit generates output Y′M′C′K′-color image data including the specific pattern color image data by combining YMCK color data with the specific pattern data of YaMaCaKa. An image output unit adds the specific pattern on the color image according to the Y′M′C′K′ color image data.