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. 06, 2010
Filed:
Dec. 13, 2006
Kenichi Nishida, Hamamatsu, JP;
Yasushi Tamazawa, Hamamatsu, JP;
Kenichi Nishida, Hamamatsu, JP;
Yasushi Tamazawa, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu-shi, JP;
Abstract
A keyboard apparatus of this electronic musical instrument is provided with touch curves TWthrough TWp, TBthrough TBq each defining a velocity value Vc varying with a key-depression velocity Kv (TD). Each of keys Kthrough Kn of a keyboardis associated with one of the touch curves TWthrough Twp, TBthrough TBq by touch selecting tables SW, SB in accordance with an equalization rule and a weighting rule. Upon a key-depression, in accordance with the velocity curve TWr, TBs selected on the basis of an actual depressed key position Ki (M), an actual key-depression velocity Kva is converted into a velocity Vca for controlling emission of a tone (M).