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:
Dec. 07, 1999
Filed:
Apr. 15, 1997
Kouichirou Hirao, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In printing a pseudo half tone image, the pulse width of an image data pulse is reduced, so that when isolated dots in the image are printed, the isolated dot part become whitish and repeatability may be lowered. A region division section judges whether the data are binary data of characters or the pseudo half tone image data. For the pseudo half tone image data, a dot pattern identification section discriminates consecutive dots from isolated dots. An image data pulse control section controlls the pulse width of the image data pulse in accordance with the result of the identification. A printer engine performs print as output with each dot of which dimension is dependent on the controlled pulse width. Therefore when the image with characters and pictures mixed together is output, the printing as output can be performed in accordance with the character region and the pseudo half tone image region.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile