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. 28, 2020
Filed:
Mar. 21, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Isami Itoh, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus comprises an output unit to output output data converted from input data by a halftone process with a first or second matrix in accordance with attribute information on pixels of the input data. The thresholds in the first matrix, whose thresholds are arranged to express the tone level of output data by the number of dots or dot area modulation for input data, and the second matrix, whose thresholds are arranged to express the tone level of output data by dot area modulation for the input data, are arranged such that the average dot size of output data obtained by the halftone process with the second matrix on input data with the first density is smaller than the average dot size of output data obtained by the halftone process with the first matrix on the input data with the first density.