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:
Jan. 12, 1993
Filed:
Dec. 22, 1989
Kotaro Mizuno, Hamamatsu, JP;
Fumio Iwase, Aichi, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
An electronic musical instrument provides a keyboard providing plural keys, memories for storing necessary programs and data, a musical tone signal generating circuit providing plural channels and a control unit such as a micro computer. A melody tone is designated by depressing a melody key within the keyboard. Then, an additional tone is automatically generated in relation to the melody tone by executing the programs, wherein its pitch, volume and tone color are controlled by the control unit. The melody tone and additional tone are assigned to desirable channels, from which the melody tone and additional tone are generated at different phonic positions. By varying the number of forming pattern of additional tones, it is possible to carry out the performance full of variety. Preferably, the additional tone is selected identical to a chord constituent note within a chord designated by performing the keyboard.