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:
Oct. 08, 1991
Filed:
Jun. 23, 1989
Tetsu Taguchi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A speech processing system such as a variable frame length type vocoder and a pattern matching vocoder of the same type capable of improving the reproduced speech. Representative frames replacing a plurality of frames in a given section are developed from among the frames in the given frame, or the frames in the given frame and the final representative frame developed in the preceding section. First frames to be replaced by the representative frames, and second frames, located between the neighboring different representative frames, which are to be approximated by interpolation between the neighboring different representative frames, are determined under the condition the lengths of the first and second frames be variable. In the pattern matching vocoder, the representative frames are compared with reference pattern frames and the most similar reference pattern frame is selected on the basis of measure which is obtained by summing a time distortion and a quantum distortion caused by the replacement of the frames with the representative frame and the reference pattern frame.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile