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:
May. 31, 1994
Filed:
Mar. 16, 1993
Naofumi Ueda, Urayasu, JP;
Hiroaki Suzuki, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A digital image processor generates a digital signal responsive to an image signal representing a predetermined font demarcated by an outline, by which digital signal a digital image corresponding to the predetermined font is expressed on picture elements by using the luminance of each picture element, the digital image processor using a matrix having matrix elements corresponding to the picture elements, on which matrix the predetermined font can be expressed. The digital image processor digitalizes the image signal to determine the luminance of each picture element by using the matrix and an antialiasing process. The digital image processor compares first luminance of a first matrix element traversing the outline of the predetermined font with second luminance of a second matrix element completely inside the outline of the predetermined font and third luminance of a third matrix element outside the predetermined font, and corrects the first luminance, if the first luminance is the highest among the first, second and third luminance, so that the first luminance is not the highest among the first, second and third luminance.