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:
Mar. 18, 1997
Filed:
Aug. 01, 1995
Applicant:
Inventor:
Tomoyuki Ura, Shizuoka, JP;
Assignee:
Yamaha Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10C / ; G10C / ; G10D / ; G10H / ;
U.S. Cl.
CPC ...
84687 ; 84719 ; 84720 ; 84 21 ; 84171 ;
Abstract
A keyboard musical instrument includes an acoustic piano for generating acoustic sounds, an electronic system for generating electronic sounds and a silent system for selecting one of the acoustic sounds and the electronic sounds, and the electronic system is equipped with key sensors and hammer sensors so as to determine a loudness of the electronic sound and a timing for a tone-generation from a key position signal or a hammer position signal depending upon a fingering on a keyboard.