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:
Mar. 29, 1994
Filed:
Feb. 22, 1991
Applicant:
Inventors:
Hiroaki Suzuki, Yokohama, JP;
Naofumi Ueda, Urayasu, JP;
Assignee:
Ricoh Company, Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395162 ; 358456 ; 358455 ; 395109 ; 395128 ;
Abstract
The tones (or densities) of individual edge pixels of vector data are determined by first dividing each edge pixel into subpixels, after which the thus-determined tones are fed to a laser printer or other output unit. Advantageously, the present invention smooths jagged edges by performing an anti-aliasing process. To achieve this smoothing of graphic data, any of a variety of filters, each having particular weights, are used for the process of dividing edge pixels into subpixels.