Strike Input Device for Electronic Percussion Instrument
First Claim
1. A strike input device comprising:
- an impact sensor for generating a first vibrating voltage in response to a striking force; and
a nonlinear circuit having a nonlinear input/output characteristic and outputting a second vibrating voltage in accordance with the first vibrating voltage input from the impact sensor, the second vibrating voltage being nonlinearly related to the first vibrating voltage,wherein the nonlinear input/output characteristic represents a first increase rate of the absolute value of the output voltage to the absolute value of the input voltage where the absolute value of the input voltage is in the lower range, a second increase rate of the absolute value of the output voltage to the absolute value of the input voltage where the absolute value of the input voltage is in the middle range, and a third increase rate of the absolute value of the output voltage to the absolute value of the input voltage where the absolute value of the input voltage is in the higher range, the first increase rate being greater than the second increase rate, the third increase rate being smaller than the second increase rate but not zero.
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Accused Products
Abstract
A piezo electric element generates a vibrating voltage in response to a striking force on a pad. The piezo electric element is connected across a series connection of a linear resistor and a nonlinear resistance network. The voltage appearing across the nonlinear resistance network is taken as an output voltage. The nonlinear resistance network is comprised of a parallel connection of a first and a second resistance circuitry. The first resistance circuitry is a series connection of a resister and two diodes connected in parallel in an opposite polarity to each other. The second resistance circuitry is a series connection of another resister and two Zener diodes connected in series in an opposite polarity to each other.
10 Citations
3 Claims
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1. A strike input device comprising:
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an impact sensor for generating a first vibrating voltage in response to a striking force; and a nonlinear circuit having a nonlinear input/output characteristic and outputting a second vibrating voltage in accordance with the first vibrating voltage input from the impact sensor, the second vibrating voltage being nonlinearly related to the first vibrating voltage, wherein the nonlinear input/output characteristic represents a first increase rate of the absolute value of the output voltage to the absolute value of the input voltage where the absolute value of the input voltage is in the lower range, a second increase rate of the absolute value of the output voltage to the absolute value of the input voltage where the absolute value of the input voltage is in the middle range, and a third increase rate of the absolute value of the output voltage to the absolute value of the input voltage where the absolute value of the input voltage is in the higher range, the first increase rate being greater than the second increase rate, the third increase rate being smaller than the second increase rate but not zero. - View Dependent Claims (2, 3)
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Specification