Tdk Electronics Ag

Epcos Ag

Robert Boschgmbh

Harald Kastl

Martin Galler

Daniel Neuwirth

Roman Puchleitner

Markus Puff

Heinz Florian

Adalbert Feltz

Georg Kügerl

Sigrid Gansberger

Franz Rinner

Axel Pecina

Marion Ottlinger

Robert Krumphals

Markus Hopfer

Siegfried Fellner

Wolfgang Athenstaedt

Aditya Rajapurkar

Zeljko Maric

Ivan Jagust

Peter Gerletz

Zdravko Mijocevic

Günter Aflenzer

A pen-shaped input and/or output device and a method for generating a haptic signal are disclosed. In an embodiment a device includes an actuator unit comprising a piezoelectric actuator, wherein the device is a pen-shaped input and/or output device, and wherein the pen-shaped input and/or output device is configured to determine an acceleration based on voltages recorded by the piezoelectric actuator.

Pen-shaped input and/or output device and method for generating a haptic signal

A pen-shaped input and/or output device and a method for generating a haptic signal are disclosed. In an embodiment a device includes an actuator unit that has a piezoelectric actuator, wherein the device is a pen-shaped input and/or output device, wherein the pen-shaped input and/or output is configured to use the piezoelectric actuator as a sensor, wherein the piezoelectric actuator is configured to generate a voltage as a result of an actuation of the pen-shaped input and/or output device, and wherein the pen-shaped input and/or output device has a second electronics circuit configured to detect the voltage generated by the piezoelectric actuator and store a characteristic value for the voltage generated.

A device having a piezoelectric actuator, which can both detect the actuation force and provide a haptic feedback. The linear expansion of the actuator can be amplified in the desired direction by a deformable metal sheet. The actuator has a flat piezoelectric basic body having plane-parallel main surfaces and two electrodes. The body is designed to generate an active haptic feedback when a force exerted upon the basic body is detected. The haptic feedback is generated in that an actuator voltage, which, by piezoelectric actuator action, results in a change in the length of the basic body, is applied between the electrodes. A cymbal-shaped metal sheet is fastened to the basic body. The body is fixed with the truncated cone vertices between a base and an actuation means connected to the base and fixed by means of a bias, which is set as tensile or compressive stress.

Device providing haptic feedback, and component comprising said device

In an embodiment an apparatus includes a base plate, an interface with a touch-sensitive surface, a piezoelectric actuator and a mechanical reinforcing element, wherein the mechanical reinforcing element is fastened to the piezoelectric actuator, wherein the mechanical reinforcing element is fastened to the interface, wherein the mechanical reinforcing element is configured to deform, as a result of a change of an extension of the piezoelectric actuator, in a first direction such that a partial region of the mechanical reinforcing element is moved relative to the piezoelectric actuator in a second direction perpendicular to the first direction and a force is applied to the interface, wherein the interface is moved, by the force applied, in a direction lateral to the touch-sensitive surface, or wherein the interface is moved, by the force applied, in a direction perpendicular to the touch-sensitive surface.

Apparatus for producing a haptic feedback

A driver circuit is disclosed. In an embodiment a drive circuit includes a signal port with a first terminal and a second terminal, a first node and a second node, a comparator with an inverting input, a non-inverting input and an output and an operational amplifier with an inverting input, a non-inverting input and an output, wherein the first terminal is electrically conductively connected with the inverting input of the operational amplifier, wherein the second terminal is electrically conductively connected with the non-inverting input of the comparator, wherein the inverting input of the comparator is electrically conductively connected with the output of the operational amplifier, wherein the first node is electrically conductively connected with the output of the operational amplifier, wherein the inverting input of the comparator is electrically conductively connected with the inverting input of the operational amplifier, and wherein the second node is electrically conductively connected with the non-inverting input of the operational amplifier.

Driver circuit for analyzing and controlling a piezoelectric component, button providing haptic feedback, and operating method

In an embodiment a device includes at least one piezoelectric actuator including a plurality of piezoelectric layers and a first reinforcing element and a second reinforcing element, wherein the piezoelectric actuator is arranged between the reinforcing elements, wherein the piezoelectric actuator is configured to alter its expansion in a first direction when an electrical voltage is applied, and wherein the reinforcing elements are configured to deform on account of a change in an expansion of the piezoelectric actuator such that a central region of the respective reinforcing element is moved relative to the piezoelectric actuator in a second direction, the second direction being perpendicular to the first direction.

Device for producing haptic feedback

A sensor and a method for measuring a pressure are disclosed. In an embodiment the sensor includes a main body including a piezoelectric material and at least two internal electrodes arranged in the piezoelectric material, wherein the at least two internal electrodes are arranged in such a way that a voltage arises between the at least two internal electrodes when a pressure acts on a side surface of the main body that is provided for an application of pressure.

Sensor and method for measuring a pressure

A pressure sensor and a method for measuring a pressure, the pressure sensor including a main body having a piezoelectric material and at least two internal electrodes arranged in the piezoelectric material, where the at least two internal electrodes are arranged such that a voltage arises between the at least two internal electrodes when a pressure acts on a side surface of the main body.

Pressure sensor and method for measuring a pressure

A multi-layer component () is specified, comprising a main body () with an external contact () arranged thereon, a further contact () for electrically contacting the multi-layer component (), and a connecting element () for connecting the external contact () and the further contact (), wherein the connecting element () is embodied in such a way that a decoupling of mechanical stresses that occur in the further contact () from the external contact () is brought about.

Multi-layer component having an external contact

The invention concerns a method for making a piezoelectrical device, whose electrode layers contain copper. The usage of copper in the electrode layers is enabled by a debindering process, which is carried out by steam.

Method for making a piezoceramic device

The present invention relates to a piezoelectrical device whose electrode layers contain copper. The usage of copper in electrode layers is enabled by a debindering process, which is carried out by steam.

Growing community of inventors

Bad Gams, Austria

Harald Kastl