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:
Sep. 11, 2012
Filed:
Aug. 18, 2009
Michael T. Stevens, Aloha, OR (US);
Michael T. Stevens, Aloha, OR (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
What is disclosed is a novel system and method for emulating transparency in a PostScript-enabled image forming device, such as a PostScript-enabled print device. The present system and method uses Adobe's DeviceN color space to support transparency printing on PostScript-enabled devices. The present method uses abstract data represented by a color plane in DeviceN space to indicate the existence of a transparency layer in the image to be printed. An emulation procedure is then called to perform a color space transformation and to perform color blending of the first image into the second image. A transparency value is used as one of the colorant channels to define the blending. Advantageously, the present method is backward compatible as there is no update required to the printer's driver or firmware. The present method has been demonstrated to work with Adobe Reader and PostScript Level-3.