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. 08, 1987
Filed:
May. 08, 1984
Masao Ninomiya, Akishima, JP;
Susumu Takashima, Kodaira, JP;
Kazumasa Fukushima, Ichikawa, JP;
Masami Yuyama, Hamuramachi, JP;
Kazuyuki Kurosawa, Hamuramachi, JP;
Casio Computer Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a speech recognition apparatus for recognizing speech by converting voice signal into digital data. The apparatus performs a two-stage Dynamic Programming (DP) operation comprising a pre-stage and post-stage operation. The pre-stage DP operation is conducted with regard to the inputted digital voice data selected along a time axis and standard pattern data formed in advance in correspondence with voice and stored in a memory, thereby selecting several standard pattern data as the candidates. The post-stage DP operation is further conducted with regard to the inputted digital voice signals and the selected candidates of standard pattern data. Thus, the DP operation time of the present apparatus is shortened and a work area of a memory is decreased.