VIBRATION DEVICE AND VIBRATION METHOD THEREOF

Abstract: in the ic card, the control circuit includes the microcomputer generating the square-pulse drive signal and the transistor boosting the square-pulse drive signal generated at the microcomputer, and the drive signal boosted by the transistor is used as the drive signal for driving the piezoelectric element. since the drive signal generated by the transistor is boosted more than the drive signal generated at the microcomputer, the improvement of the vibration intensity of the piezoelectric element can be implemented.

Inventor(s): Noriaki SATO, Takashi KATO, Tetsuyuki TANIGUCHI

CPC Classification: B06B1/023 (METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, {e.g.} FOR PERFORMING MECHANICAL WORK IN GENERAL (for particular applications, see the relevant subclasses, e.g. , , ; measurement of mechanical vibrations ; in direction finding, locating, distance or velocity measuring ; {generating seismic energy }; control of mechanical vibrations in general ; sound-producing devices, e.g. bells, sirens, whistles , {e.g. methods or devices for transmitting, conducting, or directing sound in general }; generation of electrical oscillations ; electromechanical resonators in general ; electromechanical transducers {for communication techniques, e.g. microphones, speakers} ))

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