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. 10, 1996
Filed:
May. 17, 1995
Applicant:
Inventors:
Nobuo Sugiyama, Shizuoka, JP;
Tomoyuki Ura, Shizuoka, JP;
Assignee:
Yamaha Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10C / ; G10C / ; G10D / ; G10H / ;
U.S. Cl.
CPC ...
84719 ; 84720 ; 84-2 ; 84-3 ; 84171 ;
Abstract
A hammer sensor of a keyboard musical instrument monitors a hammer action from a home position to a rebounding point on a stopper or strings, and a controller determines a hammer velocity and a time at an intermediate point on a trajectory of the hammer in a recording mode; the controller delays the time so as to determine a key-on timing, and an electronic system reproduce the acoustic or electronic sound at the key-on timing in a playback mode so as to reproduce the acoustic or electronic sound at the same timing as the original sound.