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. 13, 1994
Filed:
Sep. 03, 1992
Applicant:
Inventors:
Toru Kitayama, Hamamatsu, JP;
Iwao Higashi, Hamamatsu, JP;
Assignee:
Yamaha Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10H / ;
U.S. Cl.
CPC ...
84659 ; 84661 ; 84DI / ;
Abstract
A desired sound signal that is input from outside is amplitude-modulated or frequency-modulated with a signal of a predetermined characteristic which is generated from a signal generating source. A frequency characteristic controlling circuit controls the frequency characteristic of the modulated sound signal in accordance with a characteristic of a tone to be generated, and it outputs the controlled signal as a tone signal.