Abstract: A method of guiding a vehicle user approaching or exiting a vehicle. The method comprises projecting, by means of illumination from one or more light sources associated with the vehicle, a distinct illuminated path on the ground. The distinct illuminated path on the ground extends between the vehicle and a location remote from the vehicle. A light guidance system (10) for a vehicle (12), the system comprising one or more light sources (20, 22, 24, 26, 28, 30) associated with the vehicle and configured to project at least part of a distinct illuminated path (64) on the ground between the vehicle and a location remote from the vehicle.

Abstract: An antenna assembly includes an antenna carrier having a cylindrical body with a side wall extending between a top and a bottom and extensions extending from the side wall at the bottom at different radial positions. An antenna is coupled to the body having a film supporting first and second antenna elements having first and second feed lines and first and second antenna lines. The feed lines extend along corresponding extensions and the antenna lines wrap helically around the side wall. The antenna assembly includes clip terminals coupled to the extensions being electrically coupled to corresponding feed lines. The clip terminals have terminating ends configured to be electrically terminated to host conductors.

Abstract: A light emitting diode (LED) fixture includes an electrical connector that is configured to receive an input signal from a constant current network that has a voltage in a range from a first voltage value to a second voltage value; an LED load; an LED driver circuit coupled to the LED load, the LED driver circuit configured to operate between a third voltage value and a fourth voltage value, wherein the third voltage value is greater than the first voltage value; and a conversion circuit coupled between the electrical connector and the LED driver circuit, the conversion circuit configured to output an electrical signal in response to the input signal from the constant current network, the electrical signal having a voltage that is between the third voltage value and the fourth voltage value.

Abstract: An electrical load set circuit and apparatus having at least three control signal lines arranged in parallel, a pair of polarized electrical loads connected between two of the signal lines, and another electrical load connected between a different control signal line and one of the polarized loads. Individual ones of the electrical loads can be selectively activated without requiring an additional common (ground) line. At least two of the control signal lines can be kept in a floating state. A light strip includes plural light set circuits spaced along the control signal lines. In another variation, first and second light points are spaced along the three control signal lines, each including three different color LEDs respectively.

Abstract: In accordance with the present disclosure, one embodiment includes a memristor that is caused to be in a particular resistance state by a voltage applied across terminals of the memristor. A first logical input and a second logical input that are below a threshold voltage of the memristor are applied to a first terminal of the memristor. A first control input and a second control input are applied to a second terminal of the memristor. A logical output is determined based on a resistance state of the memristor.

Abstract: A distributed control system including a plurality of controllers, each controller of the plurality of controllers being in communication with the remaining controllers of the plurality of controllers, each controller being configured to control at least one device, each controller being further configured to: initiate a first timer, in response to a received signal, the first timer having a length that is unique with respect to the first timer lengths of the remaining controllers of the plurality of controllers; send a first notification signal, upon the expiration of the first timer, to the remaining controllers notifying the remaining controllers of an intent to send a command signal; send the command signal to the at least one device, wherein the controller is configured to cancel sending the notification signal and the command signal if the notification signal is first received from one of the remaining controllers of the plurality of controllers prior to the expiration of the first timer.

Abstract: A wireless communication device is provided. The wireless communication device comprises a circuit board, a key module and a sensing module. The key module is electrically connected with at least one key through the circuit board. The sensing module is electrically connected with the circuit board, wherein the circuit board is taken as an induction conductor of the sensing module. Therefore, according to the wireless communication device disclosed by the disclosure, the functions of the key module, the sensing module and an antenna module are integrated on a same component, so that the component has three-in-one functions, and the efficiency of an antenna is further enhanced.

Abstract: A lighting apparatus for show-business or entertainment sector comprises a light-radiation generator for projecting a lighting beam towards a lighting space that includes one or more undesired lighting zones. A motorization causes the lighting beam to scan the lighting space as a function of scanning-control signals as received by the lighting apparatus. Driving circuitry is provided, configured to control emission of the lighting beam, as well as processing circuitry configured to sense the scanning-control signals received and the scanning position of the lighting beam of the light-radiation generator. As a result of the detection of received scanning-control signals that can lead the lighting beam to being brought into the undesired lighting zone, the processing circuitry acts on the motorization and/or on the driving circuitry of the light-radiation generator, containing projection of the lighting beam directed towards the undesired lighting zone and preventing possible risks of a photobiological nature.

Abstract: A light source system includes an illumination device configured to generate illumination light, and a light source module having a function of supplying light to the illumination device and configured to be detachably attached to the illumination device. The illumination device includes a first light source and a first storage configured to store characteristic information of the first light source. The light source module includes a second light source and a second storage configured to store characteristic information of the second light source. The illumination device includes a control circuit configured to determine a driving condition of at least one of the first and second light sources, based on the characteristic information of the first and second light sources.

Abstract: A vehicle headlamp control circuit may be configured to control a vehicle headlamp comprising a plurality of lighting elements. The vehicle headlamp control circuit may comprise a first communication interface configured to receive a first signal comprising a first set of values for driving the plurality of lighting elements, and a second communication interface configured to receive a second signal comprising an intensity threshold. The circuit may be configured to determine a composite intensity associated with the first set of values and drive the plurality of lighting elements using the first set of values if the composite intensity associated with the first set of values satisfies the intensity threshold.

Abstract: A control circuit and a method for controlling a piezoelectric transformer are disclosed. In an embodiment the control circuit includes an inductor and a control unit, wherein the control circuit is configured to apply a voltage with a periodic waveform to a piezoelectric transformer, wherein a period duration of the voltage is specified by a control frequency and adjust the control frequency of the applied voltage as a function of an average current intensity of a current flowing through the inductor.

Abstract: The driver circuit according to the invention includes a receiver module, a counter unit, isolation units and a voltage regulation unit. The receiver module receives an initiation signal and performs filtering using a low-pass filter to convert the initiation signal into a driving signal which is transmitted to the counter unit. Upon receiving the driving signal, the output terminals of the counter unit are sequentially activated to output a control signal. The isolation units may be diodes or transistors adapted to output an isolated control signal. The voltage regulation unit includes a plurality of resistors and is adapted to output a control voltage corresponding to one of the resistors according to the isolated control signal. The control voltage is useful in shifting the operation of an electrical device from one operation state to another.

Abstract: An electronic device is provided. The electronic device includes a housing, an antenna structure including a printed circuit board, a first sub antenna structure including first group antenna elements, a second sub antenna structure including second group antenna elements disposed in a first direction from the first sub antenna structure, a third sub antenna structure including third group antenna elements disposed in a second direction perpendicular to the first direction, and a fourth sub antenna structure including fourth group antenna elements disposed to form a two-dimensional array together with at least some antenna elements of the first group antenna elements, the second group antenna elements, or the third group antenna elements, and a communication circuit that transmits and/or receives a signal having a frequency between 3 GHz and 100 GHz by using at least a part of the first, the second, the third, or the fourth group antenna elements.

Abstract: The present disclosure relates to a drive control system for a light-emitting diode string, comprising a control unit and a signal-generating unit. The signal-generating unit comprises a switching element with a first terminal, a second terminal and a control terminal. One end of the control unit is connected to the control terminal, and the second terminal is connected to a negative terminal of the light-emitting diode string. A voltage stabilizing circuit is connected to the negative terminal of the light-emitting diode string, wherein a positive terminal of the light-emitting diode string is connected to a power supply unit. When the control unit turns on the switching element, the power supply unit directly drives the light-emitting diode string to emit light. When the control unit turns off the switching element, the power supply unit drives the light-emitting diode string to emit light through the voltage stabilizing circuit.

Abstract: A method and apparatus for modifying a dynamic lighting effect, where that effect is considered or deemed unfavourable, by obtaining information of the dynamic lighting effect for at least part of a an area illuminated by said effect; determining, based on the obtained information, a modifying lighting pattern to modify the effect of said dynamic lighting, and controlling one or more luminaires to output the modifying lighting pattern selectively to a target portion of the illuminated area.

Abstract: Various examples concern techniques for opto-mechanically manipulating LED-based lighting systems. More specifically, various embodiments concern creating patterns of colored LEDs by determining the preferred color-specific density distribution and sequence(s) of LEDs. When creating the patterns, multiple considerations can be taken into account, including the power to be shared amongst the color channels when certain color models are generated by the linear array of LEDs, allocating an appropriate number of LEDs to each color channel to support the desired color spectrum, the sequencing of those LEDs along a string (e.g., as part of a linear array), etc. The appropriate number of LEDs for each color channel may be determined by first establishing the color model of the linear array within which the LEDs are interleaved.

Abstract: A luminaire has a light-emitting diode (LED) light source, a light sensor, and a control system. The control system receives a Measure command measure the current intensity of the LED light source. The control system measures the intensity using the light sensor, stores current intensity data in non-volatile memory, obtains the LED light source's previous intensity, selects an indicator color representing how much the current intensity is reduced from the previous intensity, and causes the luminaire to emit a light beam having the indicator color. The control system also receives an Adjust command to reduce the LED light source to a total intensity reduction amount. The control system obtains the LED light source's current reduction amount, determines whether the total intensity reduction amount is more than the current reduction amount, and, if so, causes the LED light source to emit a reduced intensity light beam.

Abstract: Introduced here are techniques for generating color mixing models that enable a tunable lamp to mix the right amount of light from various color channels in order to properly produce colors. More specifically, a lamp controller can be configured to drive multiple light-emitting diode (LED) arrays based on corresponding color mixing models. One or more color mixing models can be provisioned into the memory of an LED array prior to usage. Storing the color mixing model in the LED array enables the lamp controller to update the color mixing model based on which LED array it is serving (i.e., the lamp controller and the LED array need not be a permanently matched set). Additionally or alternatively, the lamp controller may be configured to communicate with a network-accessible computer server system to access a historical color mixing database that includes set(s) of previously-recorded spectral properties and corresponding color mixing models.

Abstract: A circuit may be configured to control a vehicle headlamp comprising light emitting diodes (LEDs). The circuit may comprise an LED controller configured to receive video data from a video source via a first interface; an LED driver configured to drive the LEDs based at least in part on the video data; and a second interface between the LED controller and the LED driver, wherein the second interface is configured to communicate the video data from the LED controller to the LED driver and wherein the second interface communicates the video data at a slower data rate than the first interface.

Abstract: The present invention provides a self-adaptive dimming driving system, configured to work with a light-emitting diode (LED) power port, the self-adaptive dimming driving system comprising: a driving circuit, a forward bias voltage detection circuit, and a controller. The driving circuit is connected to the LED power port. The forward bias voltage detection circuit is connected between the LED power port and the driving circuit, Wherein the forward bias voltage detection circuit comprises a test current output module and a voltage feedback module, the test current output module is configured to output a test current to the LED power port, and the voltage feedback module is configured to output a detection signal according to a voltage parameter of the LED power port. The controller receives the detection signal, obtains a barrier potential parameter of an LED lamp according to the detection signal, and switches a power output mode of the driving circuit according to the barrier potential parameter.