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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.:

US 4352162 B1

PDFFull Text
Date of Patent:
Sep. 28, 1982

Filed:

Jun. 24, 1980

Digital filter

Applicant:
Inventors:

Tomoaki Nyuji, Hirakata, JP;

Itaru Kawasaki, Minoo, JP;

Masahiro Noguchi, Hirakata, JP;

Masahide Tsukamoto, Neyagawa, JP;

Assignee:

Matsushita Electric Industrial Co., Ltd., Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack

Primary Examiner:

Jerry Smith

Int. Cl.
CPC ...
G06F / ; G10L / ;
U.S. Cl.
CPC ...
364724 ; 179 / ; 179 / ;
Abstract

A digital filter for a voice synthesis circuit which operates on the basis of the principle of linear predictive coding. More particularly, a digital filter of the lattice type for voice synthesis on the basis of the principle of linear predictive coding and capable of operating with a low clock frequency. Furthermore, the digital filter may use one multiplication circuit and one addition/subtraction circuit as well as containing an attenuation term element.

Find Patent Forward Citations

Nyuji, Tomoaki. (1982). Digital filter (U.S. Patent No. 4352162). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4352162

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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