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. 14, 1992
Filed:
Nov. 20, 1989
Satoru Fujii, Sagamihara, JP;
Katsuyuki Niyada, Sagamihara, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Linear prediction coefficients of a speech signal including unknown words are derived for each of successive periodic frame intervals. For every frame over the duration of an individual phoneme of the speech signal, the degree of similarity of stored coefficients of known words and derived coefficients of the unknown words are calculated so that at the end of the individual phonemes, the degree of similarity is calculated. Phoneme segmentation data are derived in response to the speech signal and combined with the calculated degree of similarity over the individual phoneme to derive phoneme strings of the speech signal. The derived and stored phoneme strings are compared to indicate the words stored in a word dictionary having the greatest similarity with the derived phoneme strings.