Performance apparatus

Details Performance apparatus Performance apparatus

2006-04-25

2006-04-25

Fletcher, Marlon T. (Department: 2837)

Music

Instruments

Automatic

C084S408000

Reexamination Certificate

active

07034215

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 t3and t4. 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.

REFERENCES:
patent: 5276270 (1994-01-01), Kondo
patent: 5530198 (1996-06-01), Ishii
patent: 6559369 (2003-05-01), Gilmore

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