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:
May. 09, 2000
Filed:
Apr. 19, 1999
Tangyu Wang, Coquitlam, CA;
Creo Products Inc., Burnaby, CA;
Abstract
A method for controlling the color density of colorant transferred to a substrate involves creating tiny gap areas in the coverage of the colorant. The method is useful in producing color proofs of halftone images. The gap areas are typically much smaller than a screen dot in a halftone image. The method permits the generation of a proof which has the same sizes of screen dots as will appear in the final printed image while operating in the saturation portion of the transfer function for the colorant being used. Suitable gap areas may be provided by pulsing a laser used to transfer colorant from a donor to a substrate. The method does not require the use of a variable power laser and therefore is more stable than previous proofing methods.