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:
Aug. 29, 1989
Filed:
Jun. 15, 1987
Norman A Peppers, Belmont, CA (US);
James R Young, Palo Alto, CA (US);
Gerald A Pierce, Redwood City, CA (US);
Kazuo Katsuki, Osaka, JP;
Nippon Sheet Glass Co., Ltd., Osaka, JP;
Abstract
In an apparatus for analyzing local features of a character or any other figures, an extraction of the local features is performed by correlation calculations using a plurality of first reference masks, an analysis associated with combinations of the extracted local feature is performed by pattern matchings using a plurality of second reference masks, and the extraction and the analysis are performed optically and simultaneously with respect to the plurality of reference masks, respectively. Therefore, the local features analysis can be performed at high speed and accurately.