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:
Jul. 29, 2003
Filed:
Mar. 14, 2000
Yuri Nakayama, Higashiosaka, JP;
Toshihiro Kanata, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An edge detection/color determination portion detects edges using a Sobel filter and makes color determination, to output a black edge judgment signal. A characteristic quantity calculation/judgment portion calculates characteristic quantities inside a mask including an observed pixel and judges based on the result whether the observed pixel is of a character edge, to thereby output a character edge judgment signal. An AND circuit produces a logical product between the two signals and outputs it as a black character edge judgment signal. Further, an emphasis setup judgment portion judges whether the emphasis process will produce white voids and contours around characters and outputs the judgment as an emphasis setup judgment signal.