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. 06, 2016
Filed:
Jan. 04, 2013
Yamaha Corporation, Hamamatsu-shi, Shizuoka-ken, JP;
Tsuyoshi Maruyama, Hamamatsu, JP;
Takeshi Mori, Hamamatsu, JP;
YAMAHA CORPORATION, Hamamatsu-shi, JP;
Abstract
A musical performance apparatus is provided with a tone generation circuitand a sound systemfor emitting musical tones of musical instruments and control tones corresponding to musical score data SD which controls a musical score display apparatus. The tone generation circuithas a tone volume adjustment circuitwhich changes tone volume of only the musical tones in accordance with player's instruction and maintains tone volume of the control tones at a certain tone volume. The tone generation circuitalso has a pan adjustment circuitwhich localizes the control tones so that the control tones will be emitted only from a certain speaker. Furthermore, the musical performance apparatus is designed such that the control tones are formed only of frequency components included in a certain high frequency band. Furthermore, the tone volume of frequency components which are included in frequency components representative of the musical tones and are further included in the certain high frequency band is controlled to be lower than the tone volume of the control tones.