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:
Feb. 11, 2003
Filed:
Apr. 28, 1999
Applicant:
Inventor:
Toshiyuki Hattori, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 1/46 ;
U.S. Cl.
CPC ...
H04N 1/46 ;
Abstract
When a screen for halftoning of N×N pixel size is realized, gamma conversion cells, the number of which is N, are prepared for converting a pixel value of one pixel into a dot signal. When these N gamma conversion cells are repeatedly applied to N×N pixels by a predetermined order pattern, dots are respectively grown round N growing cores on the screen of N×N pixels.