Abstract: Method for transmitting payload data in an electric power supply connector between a power source and a wireless apparatus is disclosed. Method includes: obtaining, by the power source, payload data to be transmitted; encoding, by the power source, the payload data using a predefined voltage modulation method; altering, by the power source, a voltage level of the electric connector in order to trigger the wireless apparatus to sample the electric connector; modulating, by the power source, the voltage level of the electric connector in order to transmit the encoded payload data to the wireless apparatus; and after detecting, by the wireless apparatus, that the voltage level of the electric connector is altered, starting, by the wireless apparatus, to sample the voltage of the electric connector in order to receive the encoded payload data, and decode the encoded payload data.

Abstract: A system and a method for controlling usage of solar panel energy. The solution comprises decreasing (300) gradually from a given maximum value the resistance of a variable load circuitry connected in parallel with the solar panel arrangement, measuring (302) the voltage or current output of the solar panel arrangement during the decreasing of the resistance, determining (304), based on the measurements, the maximum output power provided by the solar panel arrangement and providing (306) control of the operation of devices acting as the load of the solar panel arrangement based on the determination.

Abstract: Method for transmitting payload data in an electric power supply connector between a power source and a wireless apparatus is disclosed. Method includes: obtaining, by the power source, payload data to be transmitted; encoding, by the power source, the payload data using a predefined voltage modulation method; altering, by the power source, a voltage level of the electric connector in order to trigger the wireless apparatus to sample the electric connector; modulating, by the power source, the voltage level of the electric connector in order to transmit the encoded payload data to the wireless apparatus; and after detecting, by the wireless apparatus, that the voltage level of the electric connector is altered, starting, by the wireless apparatus, to sample the voltage of the electric connector in order to receive the encoded payload data, and decode the encoded payload data.

Abstract: Apparatus for counting objects is disclosed. Apparatus includes a power source (108), a radio transceiver (110), two or more passive infrared (PIR) sensors (120A, 120B, 120C), one or more memories (104) including computer program code (106), a processor (102) to execute the computer program code (106), and a mechanical field of view limiting structure (126A, 128A, 130A, 126B, 128B, 130B, 126C, 128C, 130C) configured to limit the field of view of each infrared-sensitive element. The apparatus is caused to: detecting (202), by the first PIR sensor, a first motion; detecting (204), by the second PIR sensor, a second motion; if the second motion is detected within a predetermined time period after the first motion, increasing an inward count, or if the first motion is detected within a predetermined time period after the second motion, increasing an outward count; and transmitting the inward/outward count.

Abstract: The disclosure relates to a head-mounted-display and a sensor included in a fixation component of the head-mounted-display, wherein the sensor is configured for the detection of ambient light, wherein the display element has a coupling feature configured for a direction of ambient light impinging on the coupling feature onto the sensor.

Abstract: An apparatus (100) with mechanical electric energy generation for audio processing. A mechanical module (110) includes an interface (112) configured to receive rotation (160) from a user, a disc-shaped flywheel rotor (114) with permanent magnets (116, 118), and a gearing (120) configured to increase speed of the rotation (160). An electronics module (130) includes a disc-shaped stator (132) with coils (134, 136) to generate electric energy (170) for powering the electronics module (130) during rotation of the disc-shaped flywheel rotor (114). The electronics module (130) is configured to record an audio (180) with a microphone (138) into a non-volatile memory (140), and to play the audio (182) from the non-volatile memory (140) with a speaker (142). A designed housing (150) is configured to accommodate and protect the mechanical module (110) and the electronics module (130).

Abstract: A method of operating a stylus engagable electronic device and an electronic device are provided. The device comprises a display, a stylus holder, the holder comprising an inside surface, movement detection sensors on the inside surface of the stylus holder to detect movements of a stylus inside the stylus holder, and a processor to execute user interface commands on the basis of the detection.