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:
Oct. 04, 2011
Filed:
Mar. 28, 2007
Takayuki Ohkubo, Tokyo, JP;
Kenichi Aso, Tokyo, JP;
Yoshihiko Tamura, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
A control sectionof a thermal printerperforms CMYK/RGB-gray conversion, gradation conversion, halftone conversion for an input image data, and performs shift processing and rotation processing in accordance with the resolution and the number of lines of the thermal printer. The control sectionperforms heat-accumulation correction processing for the image data subjected to the halftone processing, and the image data subjected to the shift processing and the rotation processing, and then prints a hairline image. When a circular hairline is printed, the control sectiondefines a pattern of circular hairlines, and produces a horizontal hairline pattern. Further, the control sectionshifts the produced horizontal hairline pattern downward to thereby produce another horizontal hairline pattern, performs polar coordinate conversion for the produced horizontal hairline patterns to thereby produce two circular hairlines, performs the heat-accumulation correction processing for the two produced circular hairlines, and prints them.