H03K2217/94108

PROXIMITY SENSOR WITH CROSSTALK COMPENSATION

A proximity sensor (1) with crosstalk compensation comprises a transmitting circuit (10) to transmit a signal to be reflected at a target (2) and a disturbing object (3), and a receiving circuit (20) to receive a reflected signal (RS) having a useful component (RSI) and a noise component (RS2). The receiving circuit (20) comprises an output node (A20) to provide an output signal (Vout2) in dependence from the distance of the proximity sensor (1) from the target (2). The receiving circuit (20) comprises a crosstalk compensation circuit (100) comprising a first charging circuit (110) to provide a first charge for for coarse crosstalk compensation and a second charging circuit (120) to provide a second charge for fine crosstalk compensation. A control circuit (30) sets an amount of the first and the second charge so that the output signal (Vout2) of the crosstalk compensation circuit (100) is dependent on the useful component (RSI) and independent on the noise component (RS2) of the reflected signal (RS).

Photoelectric switch and sensor unit
10620039 · 2020-04-14 · ·

To provide a connecting structure for a signal cable capable of securing a sufficient display area concerning a display in a photoelectric switch. A photoelectric switch includes a housing having a substantially rectangular parallelepiped shape. A display 5 is provided on a first surface of the housing and includes a display region. A signal cable 51 connects a control board and the display 5. The display 5 includes a connecting section 70a connected to the signal cable 51. The connecting section 70a is disposed between the display region and the signal cable in the longitudinal direction of the housing. Consequently, a connecting structure for the signal cable 5 capable of securing a sufficient display area concerning the display 5 in the photoelectric switch is provided.

Photoelectric switch and sensor unit comprising a display control unit
10620040 · 2020-04-14 · ·

To make a display in a photoelectric switch easy to see for a user. A photoelectric switch includes a housing having a substantially rectangular parallelepiped shape. A display is attached to a first surface of the outer surface of the housing. A control board is housed on the inside of the housing. A controller is mounted on the control board. The first surface includes a hole-like or cutout-like opening section for allowing a signal cable to pass from the outside to the inside of the housing. The signal cable electrically connects the control board disposed on the inside of the housing and the display disposed on the outside of the housing. A cover member includes a window section for exposing a display region of the display and covers a non-display region of the display. The cover member is provided outside the housing.

Operating device and method and appliance comprising such a device
10540050 · 2020-01-21 · ·

The invention relates to an actuation device (10) comprising: detection means configured to supply a position of an object interfering with at least one electromagnetic field; a means for determining a speed of motion of the object according to the position of the object supplied by the detection means; and actuation means configured to actuate an action if: the detection means supply a position of the object, and the speed of the object is lower than a predefined speed value.

CAPACITIVE SENSOR SWITCH WITH DISPLAY
20200007127 · 2020-01-02 ·

A capacitive sensor switch with a housing and a sensor assembly. The sensor assembly includes a printed circuit board holding a sensor circuit with multiple LED and a cover disk located on the printed circuit board and oriented towards the front side of the switch. The cover disk has an electrically conductive surface connected to the sensor circuit and a plurality of light channels for guiding the LED light.

Proximity sensor, proximity illumination intensity sensor, electronic device, and proximity sensor calibration method
10514448 · 2019-12-24 · ·

A proximity sensor includes: a light emitting unit that emits light; a light receiving unit that generates measurement current which includes object reflected light current and non-detection-target-object reflected light current; and an initial calibration execution unit that updates, on the basis of a value of the measurement current, an offset value according to the non-detection-target-object reflected light current, in a case where the value of the measurement current is equal to or less than an initial threshold.

RETROGRAPHIC SENSORS WITH FLUORESCENT ILLUMINATION
20240060837 · 2024-02-22 · ·

A retrographic sensor includes a transparent structure, a transparent elastomeric pad, and an at least partially reflective layer. One or more excitation light sources emit light toward a side surface of the transparent structure. The side surface may include a fluorescent layer, where the light from the one or more excitation light sources excites fluorescent emissions from the fluorescent layer. The fluorescent emissions may illuminate the at least partially reflective layer.

Electronic device and method for operating proximity sensor included in electronic device

An electronic device is provided. The electronic device includes a display including a plurality of thin film transistors (TFTs), a proximity sensor disposed under the display and including a plurality of light emitting units, and at least one processor operatively coupled to the display and the proximity sensor. The light generated from the proximity sensor may have a lower energy than the work function of silicon included in the plurality of TFTs of the display.

System for detecting the presence and position of hands and/or fingers near a vehicle steering wheel

Disclosed is a system for a motor vehicle, including a steering wheel (2) connected to the steering system of the vehicle, the steering wheel including a plurality of optical sensors (7) arranged on the rim (25) of the steering wheel and designed to detect the presence of at least one finger (5) of at least one hand of the driver near or in contact with the rim of the steering wheel, by way of which the system is able to determine the number of fingers near or in contact with the rim of the steering wheel as well as their respective positions on the rim. Also disclosed is a method associated with the device.

Interactive display system and method for use with low emissivity glass using infrared illumination
10461743 · 2019-10-29 · ·

A system and method are disclosed for operating a computer device using an interface device. The interface device includes at least one emitter of IR light/radiation with a peak intensity of between 780 nm and 1000 nm and at least one detector sensitive to IR light/radiation with a wavelength of 780 nm to 1000 nm wherein the user interface device is located adjacent to transparent, heat insulating glass. The IR emitter directs IR radiation through the glass, wherein the IR radiation is reflected back through the glass to the IR detector and wherein the IR detector transforms the IR radiation into an electronic signal. The method includes the step of activating the detector from a front side of the glass.