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. 22, 2011
Filed:
Apr. 05, 2007
Soichi Kuwahara, Kanagawa, JP;
Soichi Kuwahara, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
In a method of substantially correcting gradation values in a gradation correcting unit, the number of reproducible gradations is substantially reduced. Selection information of a boundary value table for multi-value error diffusion is stored, by ejection condition, in an information storing unit of a liquid ejecting head that can represent one pixel with a large number of liquid droplets. When the liquid ejecting head is mounted, selection information matching an ejection condition is read out and a boundary value table corresponding to the selection information is set for reference by a half toning unit. Consequently, the boundary value table is optimized to correct a gradation characteristic without substantially reducing the number of reproducible gradations.