Disclosed is a system for detecting command gestures made by a finger of a driver of a motor vehicle, including an interface pad, a light source that emits an optical beam in the infrared band toward the interface pad, an imaging sensor, for capturing images steered by the interface pad away from the driver, with a base frame and a movable plate, an optical zone of interest seen by the imaging sensor being defined at the interface between the base frame and the movable plate, the interface pad including an elastic deformable seal interposed between the base frame and the movable plate, the deformable seal including a first inclined facet, so that an optical path passing via the first inclined facet is proportionally modified by the deformation of the seal under the effect of the movement of the movable pad.

Disclosed is a touchpad system forming a human-machine interface, intended for a vehicle steering wheel. The touchpad system includes a light source illuminating the touchpad and a camera capturing light coming from the touchpad. The touchpad includes a first marker able to reflect the light coming from the light source, and the touchpad, with the exception of the first marker, being transparent to the light emitted by the light source. The system is notable in particular in that pressure on the touchpad causes the touchpad to move and in that, when the touchpad is in a first position, the first marker is not visible to the camera and, when the touchpad is in a second position, the first marker is visible to the camera.

The device has an input element, which can be used for resetting the device. The input element has at least one first photodiode arranged in series to at least one second photodiode. A voltage is applied over the photodiodes. When the user blocks light to only the second photodiode, the voltage at the interconnection between the photodiodes changes, which can be used to trigger the input element. The input element has low power consumption and high reliability.

An audio/video (A/V) recording and communication doorbell device includes an input port, a switch, a first power supply, a second power supply, a button, a first controller, and a second controller. The switch is electrically coupled across the input port. The first power supply receives power from the input port and powers a first power supply rail, and the second power supply powers a second power supply rail. The button, when pressed, activates a signaling device. The first controller is at least partially powered from the first power supply rail and closes the switch in response to the button being pressed. The second controller is at least partially powered from the second power supply rail.

An arrangement and method for optical recording of live skin areas of human autopodia and documents has a layer body comprising sensor layer with light-sensitive elements in regular pixel rasters, transparent protective layer above the sensor layer as placement surface for skin areas or documents is integrated in a mobile image capture device having at least one display for user guidance and an internal power supply. The layer body has an area light-emitting layer under the sensor layer to emit light in a first angle range for frustrated total internal reflection at the placement surface when autopodia are placed thereon and to emit in a second angle range to illuminate documents on the placement surface. A controlling and data processing unit handles preprocessing and reducing captured image data and an electronic interface for wireless coupling of the image capture device with a further electronic device for image data processing.

A light device control apparatus is designed to pair with a traditional switch device that has a traditional switch for accepting a first user manual operation to control a target device connected to the traditional switch device with an electrical wire. The traditional switch device has a connecting structure. The light device control apparatus has an attaching device, a cover body, a replacement switch and a wireless controller. The attaching device is attached to the connecting structure of the traditional switch device. The wireless controller wirelessly controls the target device. The replacement switch and the wireless component are not overlapped to each other vertically with respect to the surface cover of the traditional switch device.

An arrangement and method for optical recording of live skin areas of human autopodia and documents has a layer body comprising sensor layer with light-sensitive elements in regular pixel rasters, transparent protective layer above the sensor layer as placement surface for skin areas or documents is integrated in a mobile image capture device having at least one display for user guidance and an internal power supply. The layer body has an area light-emitting layer under the sensor layer to emit light in a first angle range for frustrated total internal reflection at the placement surface when autopodia are placed thereon and to emit in a second angle range to illuminate documents on the placement surface. A controlling and data processing unit handles preprocessing and reducing captured image data and an electronic interface for wireless coupling of the image capture device with a further electronic device for image data processing.

A retrofit switch apparatus is designed to pair with a traditional switch device that has a traditional switch for accepting a first user manual operation to control a target device connected to the traditional switch device with an electrical wire. The traditional switch device has a connecting structure. The retrofit switch apparatus has an attaching device, a cover body, a replacement switch and a wireless controller. The attaching device is attached to the connecting structure of the traditional switch device. The wireless controller wirelessly controls the target device. The replacement switch and the wireless component are not overlapped to each other vertically with respect to the surface cover of the traditional switch device.

A photoelectric sensor is configured to detect an object by reception of light from a light projecting unit in a light receiving unit. The photoelectric sensor differentiates a sampled light reception amount with respect to time to calculate a variation in the light reception amount per unit time, and sets as a threshold a light reception amount corresponding to an extreme value of the variation in the light reception amount. In this manner, the threshold is set with the variation in the light reception amount per unit time taken into account, thereby enhancing the accuracy in detection of the object by comparison between the light reception amount and the threshold, to allow minimization of jitter of a detection signal from the photoelectric sensor to a programmable logic controller.

An adaptive reflected light touch sensor (100, 400) is provided. The adaptive reflected light touch sensor (100, 400) includes an emitter (110) that emits light in a direction that reflects the light (RLI, RLO), a sensor (120, 410) positioned to measure a light amplitude of the reflected light (RLI, RLO), a processor board (150) coupled to the sensor (120, 410), the processor board (150) being configured to calculate a moving average of the measured light amplitude of the reflected light (RLI, RLO) and calculate an assert threshold.