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. 04, 2017
Filed:
Feb. 03, 2016
Applicant:
Yamaha Corporation, Hamamatsu-shi, Shizuoka, JP;
Inventors:
Ichiro Osuga, Hamamatsu, JP;
Michiko Yoshimura, Hamamatsu, JP;
Assignee:
YAMAHA CORPORATION, Hamamatsu-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10H 1/18 (2006.01); G10H 1/34 (2006.01);
U.S. Cl.
CPC ...
G10H 1/344 (2013.01); G10H 1/18 (2013.01); G10H 2220/271 (2013.01); G10H 2220/281 (2013.01); G10H 2230/011 (2013.01);
Abstract
A keyboard unit includes: a key; a displacement member which is configured to be driven directly or indirectly with the key by a pressing operation of the key to be moved in a forward stroke direction; a detector which is configured to detect that an operation direction of the displacement member has changed from the forward stroke direction to a returning direction; and a generator which is configured to generate sound generation indication information based on information detected by the detector.