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:
Apr. 25, 2006
Filed:
Jun. 05, 2003
Yasutoshi Kaneko, Hamamatsu, JP;
Shigeru Muramatsu, Mori-machi, JP;
Yasutoshi Kaneko, Hamamatsu, JP;
Shigeru Muramatsu, Mori-machi, JP;
Yamaha Corporation, , JP;
Abstract
There is provided a performance apparatus that can reduce energy consumption while allowing sounding elements to appropriately generate sound. A CPU supplies driving energy to an actuator to drivingly control the same based on pulse width modulation. A rotary pick is rotatively driven by the actuator to pluck reeds to generate sound. The CPU sets the duty of a driving pulse for driving the rotary pick during time points tand t. Thus, higher driving energy is supplied to the actuator in timing in which the rotary pick plucks any of the reeds than in timing in which the rotary pick does not pluck any of the reeds.