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:
Dec. 18, 1990
Filed:
Oct. 20, 1989
Applicant:
Inventors:
Youichi Yamada, Tokyo, JP;
Keiko Takahashi, Tokyo, JP;
Assignee:
OKI Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10L / ; G10L / ;
U.S. Cl.
CPC ...
381 45 ; 381 41 ;
Abstract
In a speech recognition system which performs a frequency analysis of speech input and determines its spoken interval, a time-normalized pattern (matching pattern) is prepared for use in similarity calculations. In the time-normalization, the time axis is segmented in such a manner as to cancel the effects of differences in the length of syllables in the input speech. With such normalization, it is possible to achieve high performance in linear matching of the input speech pattern against reference patterns using simple processing and a small memory space even when there are variations in the speaking rate.