A key switch assembly is provided wherein a spacer is used to isolate the key switch sensing circuit from the front panel of the device. A button assembly is provided to translate a deflection of the front panel of the device to a target coupled to a sensor of the sensing circuit.

Inductive touch key switch system including a deflection translation mechanism

An operating device, for example for electronic household appliances, has a cover plate (10) comprising an operating section (12), at least one transmitter (16) for emitting electromagnetic radiation, at least one receiver (18) for detecting electromagnetic radiation, and a control electronics (20) for evaluating measurement signals generated by the at least one receiver (18). The operating section (12) is equipped such that it is at least partially elastically deformable and/or moveable by an application of force (F) on the user side (10a) of the cover plate (10), and such that it at least partially reflects radiation emitted by the at least one transmitter (16). The at least one receiver (18) is arranged and/or configured such that it enables locally resolved detection of radiation reflected from the operating section (12) so that the control electronics (20) can detect an actuation of the operating section (12) as a function of a detection location of the reflected radiation.

Operating device, in particular for an electronic household appliance

Eine Bedienvorrichtung fur ein elektronisches Haushaltsgerat enthalt eine Abdeckplatte (10) mit einer einem Benutzer zugewandten Benutzerseite und einer dem Benutzer abgewandten Innenseite, wobei die Abdeckplatte (10) einen Bedienabschnitt (12) definiert und in diesem Bedienabschnitt (12) zumindest teilweise elastisch verformbar und/oder bewegbar ausgestaltet ist, und eine Tragerplatte (14) mit einer der Abdeckplatte (10) zugewandten Vorderseite (14a) und einer der Abdeckplatte (10) abgewandten Ruckseite (14b), wobei die Tragerplatte (14) auf der Seite der Innenseite der Abdeckplatte (10) zur Abdeckplatte (10) beabstandet angeordnet ist. Die Bedienvorrichtung weist ferner einen optischen Sensor (16, 18) zum Erfassen einer Druckbetatigung (F) im Bereich des Bedienabschnitts (12) der Abdeckplatte (10) auf, wobei der optische Sensor (16, 18) auf der Ruckseite (14b) der Tragerplatte (14) montiert ist und die Tragerplatte (14) wenigstens einen Durchbruch (20, 22) zum Hindurchlassen einer vom optischen Sensor (16, 18) emittierten und zu empfangenden elektromagnetischen Strahlung aufweist.

Bedienvorrichtung, insbesondere für ein elektronisches Haushaltsgerät

A non-contact sensing module includes a coil printed circuit board in which a reference pattern coil may be formed at an upper surface and in which a sensing pattern coil may be formed at a lower surface and that has a mounting hole at the center, and a main printed circuit board that may be coupled to the mounting hole and that may be vertically disposed at an upper surface of the coil printed circuit board and that may be electrically connected to the reference pattern coil and the sensing pattern coil.

Non-contact sensing module and method of manufacturing the same

The present invention relates to a force sensor module and, more specifically, to a mutual inductive force sensor module for implementing a three-dimensional touch, the module detecting a degree of applied force by using inductance varying according to the change in distance between coils formed on each two-layer FPCB, thereby implementing a three-dimensional touch of a display panel.

Mutual inductive force sensor module for implementing three-dimensional touch

An inductive touch key switch assembly and circuit are provided. The circuit optimizes signal strength and noise immunity by reducing the number of long paths through the circuit board and localizes the driver circuit to each key switch assembly sensor coil. The key switch assembly optimizes placement of the target to enable the user interfaces on domestic appliances and products having present values of front panel thickness.

Inductive touch key switch system, assembly and circuit

Disclosed are an arrangement and a circuit for an inductive sensor push-button. The circuit optimizes the signal strength and the noise immunity by reducing the number of long paths by the circuit board and locally assigns the driver circuit to each sensor coil of the push-button arrangement. The push-button arrangement optimizes the placement of the target in order to provide the user interfaces of household appliances and products with a front plate thickness that corresponds to current values.

Scott Johansen

Papers

Inductive touch key switch system, assembly and circuit

Arrangement and system for an inductive sensor push-button