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:
Aug. 27, 1991
Filed:
Jun. 21, 1989
Koichi Kozuki, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
An electronic musical instrument efficiently uses plural tone generation channels to generate both manual performance tones and automatic rhythm performance tones. The tone generation channels normally are used for manual performance tone generation. Tone generation channels for automatic rhythm performance are selected when automatic rhythm performance is designated. The tone generation channels are selected on the basis of non-use or least significance. After a required number of tone generation channels are selected for automatic rhythm performance, musical tone channel assignment is made. When stopping of automatic rhythm performance subsequently is designated, each tone generation channel selected for automatic rhythm performance is designated to return to normal use for generation of manual performance tones.