A capacitive touch device is described. The device comprises a capacitive touch controller (19) which includes an input port (20) and a capacitive touch sensor (23). The input port is coupled to the capacitive touch sensor by a path (25) which includes at least one capacitive coupling (26).

A touch-controlled assembly adapted to an electronic device is provided. The electronic device has a front casing, a rear casing and a display surface, where the display surface is located on the front casing. The touch-controlled assembly includes a circuit board and at least one touch key. The circuit board is disposed between the front casing and the rear casing. The circuit board has at least one pad, which contacts one surface of the rear casing. The at least one touch key is disposed on another surface of the rear casing for corresponding to the at least one pad, where an orthogonal projection of the at least one touch key on the at least on pad is partially overlapped with the at least one pad.

A keyswitch includes a base having a pillar, a cap having a rib and movable relative to the base, a sleeve rotatably sleeving the pillar and having first and second top surfaces and convex and concave portions, an elastic member abutting against the sleeve and the base, and a resilient arm abutting against a first or second position on the convex portion with rotation of the sleeve. When the resilient arm abuts against the first position, the rib abuts against the first top surface to prepress the elastic member for generating a first preload. When the cap is pressed for moving the sleeve downward, the resilient arm moves from the first or second position to the concave portion. When the resilient arm abuts against the second position, the rib abuts against the second top surface to prepress the elastic member for generating a second preload larger than the first preload.

The present invention provides a touch switch unit, including a touch knob 400 on which a touch by a user is performed, a board 200 spaced apart from the touch knob, and a touch electrode body 500 interposed between the board and the touch knob 400, for sensing a change in an electrical signal according to a touch on the touch knob, wherein the touch electrode body 500 includes a touch body 510 fixed on one surface of the board 200 between the touch knob and the board and a touch sensing electrode 520 having at least part extended to an area adjacent to the touch knob and an area adjacent to the board and formed on the touch body 510 through insert injection and having at least another part formed on the board 200 and a vehicle lighting device including the touch switch unit.

The present disclosure addresses methods and apparatus facilitating capacitive sensing using a conductive surface, and facilitating the sensing of proximity to the conductive surface. The sensed proximity will often be that of a user, but can be another source of a reference voltage potential. In some examples, the described systems are capable of sensing capacitance (including parasitic capacitance) in a circuit that includes the outer conductive surface, and where that outer conductive surface is at a floating electrical potential. In some systems, the systems can be switched between two operating modes, a first mode in which the system will sense proximity to the conductive surface, and a second mode in which the system will use a capacitance measurement to sense contact with the conductive surface.

A capacitive sensor includes sensor electrode structure and a controller operating the sensor. The sensor also includes test drive electrode structure or a reference capacitor, the controller operating the test drive electrode structure or the reference capacitor to test operability of the sensor.

A capacitive proximity and/or contact switch includes a cover plate having an upper side and an underside. The upper side provides a sensitive area of the switch and the cover plate, at least in the region of the sensitive area, is at least partially non-conductive. A conductive sensor face is disposed at a distance from the underside of the cover plate. The dielectric system of this capacitive proximity and/or contact switch is formed of the cover plate, at least one non-conductive element facing towards the sensor face and at least one conductive element between the cover plate and the non-conductive element.

A sensor device for a motor vehicle includes a multi-layer circuit board on which a plurality of metallized planes are formed. A capacitive sensor electrode is formed on one of the planes for detection by capacitive approachment sensing. A control device controls the sensor electrode as a capacitive sensor electrode in order to detect approaches of a user towards the sensor electrode via an evaluation device. At least one planar electrode region is formed on each of the metallized planes, wherein each of the electrode regions is coupled to the control device. At least two of the electrode regions on different metallized planes are activated and evaluated as sensor electrodes and at least two of the electrode regions on different planes are activated and evaluated as the ground in a temporally offset manner.

A vessel for storing an object, comprising an electrically insulating container, intended to contain the object and an electrically conductive layer, arranged on a surface of the container. There is a control circuit including an electrically conductive detection element, electrically insulated from the conductive layer and capacitively coupled to the conductive layer. The control circuit is configured to measure the capacitance formed between the conductive layer and an electrically charged object brought close to the conductive layer and to generate a control signal dependent on the measured capacitance.

A system has a gesture detection device with a plurality of input channels and an output channel which uses an alternating electric near field generated through at least one transmission electrode coupled with the output channel, wherein some of the input channels are coupled with receiving electrodes of the gesture detection device. The system further has a plurality of touch electrodes, wherein the touch electrodes are coupled with one of the input channels by multiplexing.