Disclosed is a driver stage for activating a first ultrasonic transducer and a method for the operation thereof. The driver stage comprises a first charge pump or power source and a first capacitor. The driver stage also comprises first means for charging the first capacitor with electrical energy from the charge pump and second means for connecting the first capacitor and ultrasonic transducer to different polarities. The first means do not charge the first capacitor with energy from the charge pump or power source when the first capacitor is connected to the ultrasonic transducer by the second means.

A capacitive transducer is provided. The capacitive transducer includes a plate including a protruding center mass and a substrate with a center depression configured to accept the center mass. The capacitive transducer also includes a first electrode coupled to a non-horizontal edge surface of the center mass and a second electrode coupled to a non-horizontal edge surface of the center depression. The capacitive transducer further includes a third electrode coupled to a horizontal edge surface of the center mass and a fourth electrode coupled to a horizontal edge surface of the center depression. The plate is coupled to the substrate at least along an outer perimeter area of the plate and the substrate.

A vibration device includes a protective cover to transmit light with a predetermined wavelength, a first cylindrical body to hold the protective cover at one end, a plate spring to support the other end of the first cylindrical body, a second cylindrical body to support, at one end, a portion of the plate spring in an outer side portion of a portion that supports the first cylindrical body, and a vibrating body that is provided at the other end of the second cylindrical body to vibrate in an axial direction of the second cylindrical body.

The present disclosure provides an ultrasonic system used for cleaning or other processing operations, the ultrasonic system including an ultrasonic device having a plurality of ultrasonic transducers coupled to the flexible body. The ultrasonic device may include one or more types of heating elements and may be configured as a tube, a belt, or otherwise configured depending upon the example. The ultrasonic system may further include a power supply coupled to the ultrasonic device and configured to apply a current to the plurality of ultrasonic transducers to remove contaminants from the one or more components, a fluid vessel configured to supply fluid in the form of liquid or gas or combinations thereof to the component(s) to flush the contaminants removed from the one or more components, and a waste vessel configured to collect the fluid supplied to the ultrasonic device from the fluid vessel.

Provided is a control device capable of reducing cost and thickness by using an electromagnetic actuator, and capable of efficiently generating a thrust suitable for a haptic feeling feedback to an operator who touches and operates thereto. The control device controls the electromagnetic actuator that drives an operation device supported to be elastically vibrated in one direction of a vibrating direction thereof; includes a current pulse supply unit configured to supply a plurality of drive current pulses to a coil of the electromagnetic actuator as a drive current for driving the operation device in response to a touch operation of the operation device; and an interval between peaks for each of the drive current pulses is in a range of ½ times to 1 times a vibration period of an elastic vibration.

Driver circuitry for driving an electromechanical load with a drive output signal based on a digital reference signal at a first sample rate, the drive output signal inducing a first electrical quantity at the electromechanical load, the driver circuitry comprising: a function block configured, based on said first electrical quantity, to digitally determine at a second sample rate higher than the first sample rate an adjustment signal indicative of a second electrical quantity which would be induced at a target output impedance of the driver circuitry due to said first electrical quantity; and a driver configured to generate the drive output signal based on the reference signal and the adjustment signal to cause the drive output signal to behave as if an output impedance of the driver circuitry has been adjusted to comprise the target output impedance, wherein the first electrical quantity is a current and the second electrical quantity is a voltage, or vice versa.

Provided is a stereo tactile sensation providing device including a plurality of actuators spaced apart from each other, a connector for mounting the plurality of actuators thereon and including three or more tactile regions, and a controller for applying an operation signal to the actuators, wherein the controller applies a first signal for controlling the actuators to stimulate first tactile cells above a threshold, and a second signal for controlling the actuators to stimulate second tactile cells above the threshold, and wherein the connector provides synthetic tactile sensations generated by the plurality of actuators.

The present invention provides a roadkill and bird strike prevention system comprising: an ultrasound generating circuit module generating a control signal that generates frequency waves within predetermined ultrasound range; a connection wire electrically connecting between the ultrasound generating circuit module and a ultrasound output pad and transmitting the control signal generated from the ultrasound generating circuit module into the ultrasound output pad; and the ultrasound output pad attached to a body of a vehicle, such as a motor vehicle, an aircraft, and a watercraft, and outputting ultrasound waves using the control signal transmitted from the ultrasound generating circuit module through the connection wire.

Methods, systems, and devices for an H-bridge driver for haptics and camera voice coil motor applications are described. A device may generate a control signal for an application executing on the device such as a camera application, a gaming application, or any application receiving a user input or outputting feedback to the user. The device may generate the control signal using a voice coil motor driver of a camera component of the device. The device may drive a haptics motor based on the generated control signal and generate a haptic response based on driving the haptics motor. The device may, as a result, output the generated haptic response. Additionally or alternatively, the device may drive a voice coil motor based on the generated control signal and may control a camera component of the device based on driving the voice coil motor or the haptics motor, or both.

A micromechanical component for a sound transducer device. The component includes a diaphragm element which includes a first diaphragm surface and a second diaphragm surface which points away from the first diaphragm surface, and at least one piezoelectric element situated on and/or at the first diaphragm surface. The micromechanical component includes a substrate having at least one control and/or evaluation circuit developed thereon and/or therein, the first diaphragm surface pointing toward the substrate, and the substrate is attached to the diaphragm element at least via at least one an electrically conductive bond connection structure which is developed on and/or at the first diaphragm surface, from which the second diaphragm surface is pointing away, and the at least one piezoelectric element is electrically connected to the at least one control and/or evaluation circuit at least via the at least one electrically conductive bond connection structure.