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. 16, 2014
Filed:
Apr. 27, 2012
Yumi Yanai, Kawasaki, JP;
Hiroshi Mori, Yokohama, JP;
Takahisa Akaishi, Kawasaki, JP;
Yoshikazu Ishikawa, Yokohama, JP;
Misae Tasaki, Kawasaki, JP;
Yumi Yanai, Kawasaki, JP;
Hiroshi Mori, Yokohama, JP;
Takahisa Akaishi, Kawasaki, JP;
Yoshikazu Ishikawa, Yokohama, JP;
Misae Tasaki, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention has an objective of providing an image formation apparatus that can output binary image data on a printing medium with a favorable quality. According to the present invention, a plurality of different pieces of mask data stored in a storage unit is used to generate a plurality of different pieces of divided data. Then, the frequency characteristic information of the respective plurality of generated thinned images is calculated. Thereafter, the pieces of frequency characteristic information of the respective plurality of generated thinned images are compared to select, from among the plurality of pieces of mask data stored in the storage unit, a divided mask pattern to be used for the input image data. Then, the selected divided mask pattern is used to form the image.