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. 31, 1993
Filed:
Dec. 17, 1990
Katsuyuki Niyada, Sagamihara, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Abstract
In a voice recognition method, a d-by-J demensioned reference voice pattern is prepared for each target word, when J denotes a predetermined number of frames and d denotes a predetermined number of characterizing parameters per frame. A spoken input word is partitioned between its start and end points into J frames, and d characteristic parameters are extracted for each frame to form a d-by-J demensioned input time-series vector. The resemblance between the input vector and each of the reference voice patterns is then calculated using a statistical distance scale, and the spoken word is identified with the reference pattern providing the highest resemblance. The method requires fewer calculations and yet attains a high recognition rate through the normalization of the input voice word for both spectrum and time.