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.

Date of Patent:
Aug. 18, 2015

Filed:

Mar. 09, 2010
Applicant:

Masanori Yoshizawa, Hachioji, JP;

Inventor:

Masanori Yoshizawa, Hachioji, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 1/405 (2006.01); H04N 1/40 (2006.01); H04N 1/52 (2006.01);
U.S. Cl.
CPC ...
H04N 1/40087 (2013.01); H04N 1/40025 (2013.01); H04N 1/52 (2013.01);
Abstract

Disclosed is an image processing apparatus to perform screen processing for image data, and to form an image based thereon, comprising a screen processing unit to perform the screen processing by using a subcell corresponding to a plurality of pixels, and in which a first and a second threshold values are determined according to each position of the pixels, wherein the screen processing unit obtains threshold values, to output either an invariable value D, an invariable value D, or an interpolated value of the two invariable values, and wherein the subcell is determined so that the first threshold value of a given pixel is larger than the first threshold value of a prior pixel and is smaller than the second threshold value thereof, the threshold values of the prior pixel being determined so that a dot is formed in the prior pixel earlier than in the given pixel.


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