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:
Sep. 10, 1991
Filed:
Mar. 28, 1989
Applicant:
Inventor:
Tetsu Taguchi, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10L / ; G10L / ;
U.S. Cl.
CPC ...
381 38 ; 381 36 ;
Abstract
A linear predictive speech synthesis apparatus which receives a pitch parameter and linear predictive coefficients. The synthesis apparatus includes a device for producing an exciting source signal in response to the pitch parameter, and a device for filtering the exciting source signal in response to the linear predictive coefficients to produce a synthesized speech signal. A cascade frequency characteristic between spectral envelope frequency characteristics of the producing device and the filtering device is designated such as to correspond to a spectral envelope characteristic of an input speech signal.