Performance apparatus
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United States of America Patent
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Apr 25, 2006
Issued Date -
N/A
app pub date -
Jun 5, 2003
filing date -
Jun 7, 2002
priority date (Note) -
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status (Latency Note)
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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 t3 and 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.
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