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:
Apr. 25, 2000
Filed:
Jan. 29, 1998
Yasuhiro Aitani, Yamatokoriyama, JP;
Masashi Amano, Nara, JP;
Sharp K.K., Osaka, JP;
Abstract
A purpose of the handwriting recognition device is to retrieve handwritten characters and symbols at high speed and easily. The stroke data input from the stroke data input part through handwritten input is subjected to the approximate reforming process and single-stroking process to prepare the single-stroke data. By subjecting the single-stroke data to the complex Fourier transform process, the Fourier coefficient is obtained and the number of strokes is obtained. During registration, the dictionary Fourier coefficient and the dictionary stroke number, and the dictionary stroke data are stored in the dictionary memory in relation to each other. During retrieval, the retrieval Fourier coefficient and the retrieval stroke number are stored temporarily in the temporary memory. Furthermore, the dictionary stroke data are narrowed down according to the result of the comparison of the stroke numbers, and the dictionary stroke data is determined according to the result of the comparison of the Fourier coefficient.