Systems and methods having a touchless operating panel with buttons and an electronic circuit (EC). The system including a proximity sensor (PS) associated with an associated button and positioned proximate thereto. The PS arranged to generate a button detection zone around the associated button and detect a presence within the button detection zone. When the PS detects a presence of an object within the button detection zone in a time period, the EC receives proximity values about the detection from the PS. The EC detects if activation of the PS is intentional or unintentional, based on inputting into an activation assessment module, the received proximity values and any other proximity values received from one or more other PSs. When a detection is made that the PS is intentionally activated regarding the presence of the object within the button detection zone. The EC generates and emits a command action.

An optical fingerprint identification circuit and a display panel are provided. The optical fingerprint identification circuit adds a reset unit at the gate of the driving transistor. The anode of the photodiode is electrically connected to the scan line. The optical fingerprint identification circuit could effectively avoid the reverse breakdown risk of the photodiode while realizing the fingerprint identification. It could reduce the requirement for the reverse breakdown voltage of the photodiode and requirement for the performance of the sensor. Furthermore, the circuit structure is simpler and the number of the TFTs is reduced. This improves the integration of the circuit.

The present description concerns a button capable of being activated by the proximity of a user's finger, including: a time-of-flight distance sensor; and a control circuit, coupled to the distance sensor and configured to transmit a control signal, where the control circuit is configured to perform a switching of the signal, between a first state and a second state, conditioned at least by the detection by the sensor, for a first time period, of an object at a distance shorter than a first threshold.

A system for automatically controlling at least one wirelessly controllable receptacle includes a photocell assembly comprising a photocell and photocell controller configured to detect a level of ambient light and to vary a light detection signal to have a first value when the level of ambient light is below a threshold and a second value when the level of ambient light is above the threshold; and a controller configured to receive the light detection signal and to wirelessly control at least one of a receptacle outlet or a switch, according to the light detection signal, wherein the controller is configured to wirelessly control the at least one receptacle or switch to turn ON in response to the first value of the light detection signal and to turn OFF in response to the second value of the light detection signal.

A touchless trigger apparatus is touchless button, comprising a photon-gate side, a photon-gate distal side more than 1 cm (11.0 in) and less than 30 cm (11.0 in) across the photon-gate opening, to the photon-gate side. An electro-optical sensor is connected to the photon-gate side. An ASIC controller is connected to the output of the electro-optical sensor. Lastly a button face is within the opening of the photon gate. Alternatively, a touchless trigger apparatus is a touchless pushbutton, or a touchless switch. Any person or primate trained to use a button, pushbutton or switch could intuitively learn to use a touchless trigger apparatus due to its recognizable combination of elements and low-latency feedback before touching the button, the pushbutton or the switch.

An optical sensing module has a light source and an optical sensing integrated circuit device. The optical sensing integrated circuit device has an optical sensor and a grating. The optical sensor and the light source are arranged along a first direction. The grating is formed over the optical sensor and has multiple parallel wires. The multiple wires are perpendicular to the first direction.

A light reception/emission element module comprises a substrate, a light emitting element disposed on the substrate, a first light receiving device disposed on the substrate apart from the light emitting element, and an upper wall located above the substrate. The upper wall comprises a facing surface facing the light emitting element and the first light receiving element. The light reception/emission element module of the disclosure further comprises a second light emitting element disposed on the substrate. The upper wall further comprises a first light passing portion located above the light emitting element, a second light passing portion located above the second light receiving element, and an intermediate portion located in a region between the first light passing portion and the second light passing portion. At least part of a lower surface of the intermediate portion comprises the facing surface.

An item such as a fabric-based item or other item may have one or more actuators. An actuator may have a conductive strand of material. A control circuit may supply a current to the conductive strand that induces a length change in the conductive strand due to ohmic heating and associated thermal expansion effects. The control circuit may be used to activate the actuator in response to user input that is supplied to an associated input device such as a switch, capacitive sensor, force sensor, light-based sensor, or other input component. The fabric-based item may include fabric such as woven fabric or knit fabric. Strands of conductive material may serve as signals paths for supplying current to conductive strands in actuators. Magnetic-field-based actuators may be formed by coiling conductive strands around tubular support structures such as piping in fabric-based items.

A color temperature switching scheme for an LED lighting device is disclosed. The color temperature switching scheme comprises a plurality of different color temperature performances correspondingly generated by a plurality of different paired combinations of a first electric power allocated to a first LED load emitting a light with a first color temperature and a second electric power allocated to a second LED load emitting a light with a second color temperature such that a mingled color temperature between the first color temperature and the second color temperature can be generated thru a light diffuser. For tuning the mingled color temperature of the LED lighting device a reverse yet complementary power adjustment process for distributing a total electric power T between the first LED circuit and the second LED circuit is required such that a total light intensity remains essentially unchanged while the mingled color temperature is being adjusted.

Exemplary embodiments of dispensers are disclosed herein. An exemplary dispenser for dispensing soap, sanitizer or lotion includes a housing, an actuator, a processor, a battery power supply and a sensor for detecting a user. The sensor for detecting a user operates in first duty cycle or a second duty cycle. Operating in the second duty cycle consumes less power than operating in the first duty cycle. The sensor operates in the first duty cycle if a user is detected and the sensor operates in the second duty cycle if the sensor does not detect a user and a selected period of time has elapsed.