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:
Jul. 01, 2014
Filed:
Mar. 23, 2012
Toshiaki Kakutani, Nagano, JP;
Takuma Hayashi, Nagano, JP;
Toshiaki Kakutani, Nagano, JP;
Takuma Hayashi, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
When dot data indicating whether or not a dot is formed on the basis of the gradation value for each pixel, dots belonging to a plurality of pixel groups having different printing conditions are printed in a common region in an overlapping manner, and the distribution of dots in the common region has a noise characteristic possessing a peak in the spatial frequency region on the high-frequency side. In a case where first and second pixels belonging to two pixel groups are proximal pixels in the common region in a predetermined gradation range in which probabilities k1 and k2 at which a dot is formed in the first and second pixels are such that k1<0.5 and k2<0.5, a probability K of a dot in both of the proximal pixels is set to be close to k1·k2.