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:
Jan. 30, 2007
Filed:
Apr. 11, 2002
Etsuo Morimoto, Yokohama, JP;
Hiroyuki Shibaki, Tokyo, JP;
Etsuo Morimoto, Yokohama, JP;
Hiroyuki Shibaki, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image processing apparatus includes a first filtering process device configured to perform a predetermined space frequency characteristic conversion process to input image data having multiple-level gradation. A conversion process device performs a gradation characteristic conversion process to an output result of the first filtering process device. A second filtering process device performs a predetermined space frequency characteristic conversion process to an output result of the conversion process device. A halftone processing device performs a quasi-gradation processing to an output result of the second filtering process device.