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:
Jul. 12, 1988
Filed:
Jun. 19, 1987
Applicant:
Inventor:
Kazuo Murakami, Shizuoka, JP;
Assignee:
Yamaha Corporation, Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10F / ; G10C / ;
U.S. Cl.
CPC ...
84 21 ; 84226 ;
Abstract
An automatic player piano in which solenoid-operated key actuator units are provided respectively in association with the individual keyboard keys and are energized normally with signals effective to produce sounds with dynamic levels within a predetermined, selectable operable range of the player piano, wherein when it is desired that the player piano be used as a background music player, the key actuator units are energized with signals effective to produce sounds with dynamic levels within another range at least partially lower than the predetermined operable range of the player piano.