Abstract: A lighting apparatus includes a rectifier, a loading module and a current supplemental module. The rectifier is connected to an output of the AC power for receiving an AC signal. The rectifier converts the AC signal to a positive wave signal. The loading module is disposed at an output of the rectifier. The loading module includes multiple loading units connected in series. Output of each loading unit is connected to a current limit module. Each current limit module has a voltage conductive threshold and a working cycle dispatched to each current limit module according to the positive wave signal. The current supplemental module is connected to an output of the rectifier and an input of the loading module. The current supplemental module charges the current limit module during the working cycle and outputs current to the loading module when the positive wave signal is not sufficient to drive the loading module.

Abstract: A power management and smart lighting system is provided that enables efficient distribution of DC power to various building features, including LED lighting. The power management system includes an intelligent power supply unit configured to convert AC power drawn from a building load center into a deadband DC waveform. The deadband DC power generated by the intelligent power supply unit is then transmitted over power-with-Ethernet cables to a plurality of distributed intelligent drivers, each configured to intelligently power one or more LED troffers. The intelligent drivers may be daisy-chained to one another by the power-with-Ethernet cables, enabling a power-ring architecture. To enable easy control of the drivers, intelligent sensors can be distributed throughout the topology and connected to the drivers (e.g., via power-with-Ethernet cables) to enable a wide array of lighting control options.

Abstract: An optical output device is described that includes one bus system. The bus system includes two bus wires of a bus, two bus units and one bus control unit. The two bus units may include one optical output element one output control unit whose output is connected to the one optical output element a first storage unit for storing address data of the respective bus unit a second storage unit for storing a counter value, a comparison unit whose inputs are connected to the first storage unit and to the second storage unit, and a control unit whose input is connected to an output of the comparison unit and which controls the takeover of data from the bus into the output control unit depending on an output signal or on output data of the comparison unit.

Abstract: A controllable lighting device may utilize a controllable impedance circuit to conduct a load current through an LED light source. The controllable impedance circuit may be coupled in series with a first switching device, which may be rendered conductive and non-conductive via a pulse-width modulated signal to adjust an average magnitude of the load current. The controllable lighting device may further comprise a control loop circuit that includes a second switching device. The second switching device may be rendered conductive and non-conductive in coordination with the first switching device to control when a feedback signal is provided to the control loop circuit and used to control the LED light source. The control loop circuit may be characterized by a time constant that is significantly greater than an operating period of the load current.

Abstract: Systems and methods for adaptive energy storage in an illumination system are disclosed herein. An example method includes (1) obtaining, by one or more processors, data stored at a memory of a illumination unit; (2) obtaining, by one or more processors, a temperature value from a temperature sensor; (3) analyzing, by one or more processors, the obtained data and the temperature value to determine a minimum capacitor voltage to operate LEDs in accordance with an illumination cycle; and (4) control, by one or more processors, a voltage controller to convert an input voltage to the voltage controller to the determined minimum capacitor voltage, wherein the voltage controller is configured to apply the determined minimum capacitor voltage to a capacitor.

Abstract: An image display apparatus is disclosed. The image display according to an embodiment of the present disclosure includes a signal processing device including a first logic circuit to process a first voltage range of a voltage level of the input signal, a second logic circuit to process a second voltage range of the voltage level of the input signal, higher than the first voltage range, and a protection control circuit including a protection switch and a protection controller for controlling the protection switch, wherein the protection switch is turned on based on the protection controller being turned off or powered down. Accordingly, a breakdown phenomenon can be reduced in case of power off or power down.

Abstract: The invention provides a visible light communication system with adaptive dimming and a modulation and demodulation method. The system includes: a source; an adaptive M-PAM modulator, separately modulating a signal transmitted by the signal source into a first and a second electrical signal; and a dual-path pulse generator, alternately generating a first and a second pulse control signal, where the first and the second pulse control signal are both periodic signals, where when a remaining operating duration of a high level of the first pulse control signal equals to a time of a rising edge of the second pulse control signal, the second pulse control signal starts to be generated, and when a remaining operating duration of a high level of the second pulse control signal is equal to a time of a rising edge of the first pulse control signal, the first pulse control signal starts to be generated.

Abstract: An LED driver for an LED lamp, which also comprises an LED load. The LED driver is adapted to connect to an input source at a first and second terminal. The LED driver comprises a switching arrangement configured to enable a controller to control at least a magnitude and phase of the voltage between the first and second terminals. The phase of the voltage between the first and second terminals may be defined to control an amount of power that flows from the input source to power the LED lamp.

Abstract: An inspection device includes a reader including a light source and a light receiving element, a white reference section, a memory storing reference data of a white pixel value, and a controller. The controller is configured to cause the light source to emit light toward the white reference section, and receive a pixel signal output from the reader when the light receiving element receives reflected light from the white reference section, determine a rate of decrease in a pixel value relative to the reference data, based on the received pixel signal, when the rate of decrease is equal to or higher than a first threshold, output an instruction signal concerning an instruction to clean the reader, re-determine the rate of decrease in response to receiving input of a completion signal concerning completion of cleaning of the reader, and update the reference data using the re-determined rate of decrease.

Abstract: A controller for use in a power converter that is configured to operate in a plurality of modes including a first mode and a second mode includes a frequency monitor module coupled to measure a signal characteristic of a switch drive signal coupled to control switching of a switches block of the power converter. The frequency monitor module includes a memory coupled to store a measured signal characteristic of the switch drive signal measured during the first mode. The frequency monitor module is coupled to generate a clock signal in response to the measured signal characteristic stored in the memory. The switch drive signal is coupled to be generated in response to the clock signal during the second mode.

Abstract: An illumination device, an LED driver circuit, a bleeder control circuit and a control method are provided. An AC input voltage is transmitted to a bus line after phase-cut processing. The bleeder control circuit includes a timing module configured to receive a bus voltage and at least one threshold voltage and generate a first time signal; a time processing module configured to receive the first time signal and generate a second time signal based on the first time signal in a previous power frequency half-wave cycle; and a control signal generation module configured to receive the second time signal and generate a first control signal for controlling a bleeder circuit. The beneficial effects of the present disclosure include the bleeder circuit being accurately controlled through the detection of the bus voltage and the implementation of the adaptive control method, thereby improving the operational efficiency and stability of the system.

Abstract: A method of initiating power-on of a light driver for driving a light source, the method including retrieving a stored load voltage of the light driver from a memory, determining a turn-on delay based on the stored load voltage, stalling power-on of the light driver for a period of time equal to the turn-on delay, initiating startup of the light driver based on the stored load voltage, determining whether current is flowing to the light source, in response to determining that current is flowing to the light source, measuring a load voltage of the light driver, and storing the load voltage in the memory.

Abstract: A method of configuring a white LED light with a tunable diffused light color temperature, includes using a light-emitting unit configured with a first LED load emitting light with a first color temperature between 1800K and 3000K and a second LED load emitting light with a second color temperature between 4000K and 6500K, electrically connected in parallel; using a light diffuser to cover the first LED load and the second LED load to create a diffused light with a diffused light color temperature; using two semiconductor switching devices working in conjunction with a controller to respectively control a first electric power delivered to the first LED load and a second electric power delivered to the second LED load such that a total electric power of the light-emitting unit remains unchanged; and using at least one external control device to activate a selection of the diffused light color temperature.

Abstract: Method for controlling operation of an electrical machine, in particular of an electrical machine of a motor vehicle, an operating state of the electrical machine being switched between an active short circuit mode and at least one further operating mode. When switching between the short circuit mode and the at least one further operating mode, a duty factor of an operating signal, in particular of a PWM signal, of the electrical machine is changed in a ramp-shaped manner at least in sections.

Abstract: According to an aspect, a non-regulated power converter includes a plurality of switching tank converter (STC) modules configured to be connected in parallel and to a load. The plurality of STC modules includes a first STC module configured to generate a first output current and a second STC module configured to generate a second output current. The first STC module includes an output current (OC) measuring circuit configured to measure a value of the first output current, and a dead time (DT) adjustor configured to compare the value of the first output current with a value of a minimum output current provided by the plurality of STC modules. The DT adjustor is configured to adjust a dead time in response to the value of the first output current being greater than the value of the minimum output current.

Abstract: A networked lighting control system having the capability to identify problems within its own wireless network. The system includes a plurality of luminaire nodes. Each luminaire receives, via a wireless mesh network, a series of messages containing an output control indication. The indication represents a “delta” value, which the luminaire uses, for each received message, to generate a control signal to increase the light output of its lamp by a known amount. The luminaire transmits a series of messages containing the output control indication, wherein each transmitted message corresponds to each message that had been received by the luminaire. After a series of such “delta” messages have been originated and broadcast over the mesh network, the luminaires that failed to receive some of the messages will appear dimmer than the luminaires that received all, or more of, the messages, providing a visualization of signal propagation problems.

Abstract: The present disclosure provides a light emitting element driving device. The light emitting element driving device includes a constant current circuit and a current detection unit. The constant current circuit includes: a first transistor including a first end, a second end and a control end connected to an external terminal; a current setting resistance connected to the second end of the first transistor; and a drive amplifier including a first input end connected to a first node to which the first transistor and the current setting resistance are connected, a second input end to which a current set voltage is applied, and an output end connected to the control end of the first transistor. The current detection unit generates a current detection signal based on a feedback voltage generated in the first node.

Abstract: A display panel includes a display area and a non-display area surrounding the display area. The display area includes a plurality of display lines and a plurality of display sub-pixels arranged in arrays. The non-display area further includes a dummy sub-pixel, a driver chip, a feedback line and a compensation line. The driver chip is used for acquiring a current signal of a light-emitting element in the dummy sub-pixel through the feedback line, and generating a compensation signal when the current signal fed back by the feedback line is not equal to the preset threshold value, and also for generating a display compensation signal when the current signal fed back by the feedback line is equal to the preset threshold value, and the display compensation signal is transmitted to the pixel driving circuit of the display sub-pixel through the display line.

Abstract: A resonant converter has a primary resonant tank circuit and a secondary resonant tank circuit. An inverter circuit converts an input DC voltage received by the resonant converter at an input voltage node to a pulsating signal that is fed to the primary resonant tank circuit to generate a resonant tank current that flows through a primary winding of a transformer. The resonant tank current induces current in a secondary winding of the transformer. The induced current is rectified by a rectifier and the rectified signal is filtered by an output capacitor to generate an output DC voltage at an output voltage node. The secondary resonant tank circuit is disposed between the input voltage node and the output voltage node to inject odd order harmonics of the operating frequency to the primary tank circuit to shape the resonant tank current.

Abstract: Methods and systems for automatically calibrating external illumination sources are disclosed herein. An example method includes supplying power over Ethernet (PoE) to an imaging assembly. The example method may further include identifying a characteristic corresponding to an external illumination source connected to the imaging assembly. The example method may further include adjusting an output intensity of the external illumination source based upon the characteristic, wherein the imaging assembly supplies the PoE to the external illumination source.

Abstract: A ripple reduction circuit for use with an AC/DC power supply providing an output voltage to a load is presented. The ripple reduction circuit includes an input terminal for receiving the output voltage and a low pass filter. The low pass filter is used to filter an AC component of the output voltage to obtain a filtered DC voltage. The ripple reduction circuit generates a reference current based on the filtered DC voltage and a control voltage having an AC component in phase with the AC component of the output voltage.

Abstract: Provided is a light-emitting device having an excellent light emission performance irrespective of its small thickness. The light-emitting device includes a base having a surface; one or more light sources that are provided on the surface of the base, and each have an optical axis; a reflective lens provided to interpose the light source between the reflective lens and the base; a reflective sheet that is provided to surround the light source along the surface of the base, and includes a first surface that makes a first angle relative to a plane that is substantially orthogonal to the optical axis to allow the first surface to be away also from the base as the first surface is away from the light source; and a light diffusion member provided to interpose the light source, the reflective lens, and the reflective sheet, between the light diffusion member and the base.

Abstract: A small cell access node is configured for mounting in an elevated or aerial location, such as on a streetlight. In one exemplary embodiment, the small cell access node includes a housing, at least one electrical module, and an electrical interface connector. The housing includes an electrically conductive lower housing member having a floor portion and an electrically non-conductive sidewall housing member secured along a first edge thereof around at least part of a periphery of the floor portion. The at least one electrical module is positioned in a volume defined by at least the lower housing member and the sidewall housing member. The at least one electrical module includes a shielded enclosure, which is electrically coupled to the lower housing member. The electrical interface connector passes through the lower housing member and supplies electrical power received from an external power source to the at least one electrical module.

Abstract: A battery pack comprises a battery pack housing operably connectable to a power tool, at least five battery cells disposed in the housing, and battery pack terminals electrically connectable to power tool terminals of the power tool and electrically connected to the battery cells. An inductance characteristic of the battery pack is greater than 0 and less than 0.20 micro Henries. A ratio of inverse impedance and inductance characteristic of the battery pack is greater than 5×107 ??1H?1.

Abstract: Systems, methods, and modes for commissioning of a building control system comprising a plurality of electronic devices installed in a building each adapted to communicate over a communication network and comprising at least one light source adapted to emit light of a plurality of colors. The system comprises at least one controller in communication with the plurality of electronic devices over the communication network, wherein the at least one controller is adapted to iteratively select one or more of the plurality of electronic devices to commission, command the selected electronic devices to emit a plurality of different assigned colors, and receive an identification of at least one illuminated color of an electronic device to be commissioned until the electronic device to be commissioned is identified.

Abstract: A battery control system is provided with battery monitoring control circuits for measuring an output voltage of an individual or secondary battery cells, which are connected in an assembled battery divided into blocks; and a control circuit for controlling the battery monitoring control circuits. Each of the batter monitoring control circuits includes a communication interface for communications between the battery monitoring control circuits or communications with the control circuit; a power converter for converting a start-up signal into a DC voltage; and a start-up circuit that receives the DC voltage and generates a start-up control signal for starting the battery monitoring control circuit.

Abstract: Disclosed is a ripple counter with a dynamic bandpass filter for a DC motor. The ripple counter includes a current sense amplifier configured to provide an analog voltage responsive to an inline current in rotor windings of the DC motor. The ripple counter also includes an analog-to-digital converter configured to provide a digital signal responsive to the analog voltage. The ripple counter also includes a digital filter configured to receive the digital signal and a clock signal and configured to vary a frequency response to provide a filtered ripple current. The ripple counter also includes a digital comparator circuit configured to receive the filtered ripple current and to provide a pulsed output. The ripple counter also includes a clock generator configured to detect the frequency of the pulsed output and to provide the clock signal responsive to the detected frequency.

Abstract: A light emitting device controls its mixed CCT by the configuration of at least one light emitter, at least one diode and at least two power distribution components. The present disclosure is mainly based on the hardware design of diode and jumper, which effectively replaces the resistors and manual switches of the conventional light emitting device with diodes, wherein the resistors and the manual switches of the conventional light emitting device cause voltage instability and other problems. The present disclosure can achieve the demand for miniaturization of the light emitting device by plugging the jumper into pins, and further can achieve the main advantages of stabilizing the voltage of the overall light emitting device, thereby stabilizing the luminous performance of the overall light emitting device, and emitting the mixed light with the required CCT. The present disclosure also illustrates a lamp assembly using the aforementioned light emitting device.

Abstract: A field emission propulsion system for a spacecraft includes a control unit, a propulsion assembly, and a plurality of extractor electrode voltage sources. The propulsion assembly comprises a plurality of field emission propulsion units having an ion source with a plurality of ion emitters and extractor electrodes associated with the ion emitters and disposed in a field arrangement. The plurality of extractor electrode voltage sources, each associated with the extractor electrodes to control the same, are controlled by the control unit using an individual extractor electrode voltage.

Abstract: A light color emission changing system for changing the color of a white light emitting light source to a selected color includes a light fixture having a base and a socket. The base is mounted on a support and a light emitter is connected with the socket to emit light having a white hue when turned on. A covering is removably positionable over the light fixture such that only one color of light is emitted through the covering.

Abstract: In at least one embodiment, a power conversion device for a vehicle is provided. The power conversion device includes a transformer, a microcontroller, and a control circuit. The microcontroller is configured to operate at a first frequency to receive a first current signal indicative of a current of a first voltage network and to generate a first envelope control signal in response to the first current signal. The controller is configured to selectively switch a first plurality of switches on a primary side and a second plurality of switches on a secondary side to convert a first input signal into first output signal in response to at least the first envelope control signal. The controller is further configured to selectively switch the first plurality of switches and the second plurality of switches at a second frequency that is greater than the first frequency.

Abstract: A circuit breaker includes two or more poles electrically connected between a power supply and a contactor. Each of the two or more poles comprises a switch. The circuit breaker includes one or more voltage measuring devices configured to measure at least one phase-to-phase voltage level, and one or more current detecting devices configured to detect current going through each of the two or more poles. The circuit breaker further includes a control circuitry configured to: monitor the at least one phase-to-phase voltage level; in response to determining the at least one phase-to-phase voltage level is within a threshold range, close corresponding switches; in response to detecting current flowing through at least one of the two or more poles, maintain the corresponding switches in a closed position; and close all additional switches associated with the two or more poles after a period of time.

Abstract: An LED driving circuit, a light tube and an illumination device are provided. The LED driving circuit includes a first AC input end, a second AC input end, a driving module, a first protection unit, a first DC output end and a second DC output end. The first protection unit includes a voltage detection subunit and an abnormality cutoff subunit, and the voltage detection subunit is connected in parallel between two corresponding voltage nodes of the driving module, and the voltage detection subunit is configured to detect a voltage value of the driving module; and the abnormality cutoff subunit is connected in series between the second input end of the driving module and the second AC input end; the first protection unit is configured to cut off a circuit of the driving module when a voltage abnormality of the driving module is detected.

Abstract: The invention relates to an isolated driver (100) for lighting means (109), comprising: a primary circuit (100a), a secondary circuit (100b), an isolation barrier (106) separating the primary circuit (100a) and the secondary circuit (100b), wherein a ground potential of the primary circuit (100a) and a ground potential of the secondary circuit (100b) are connected via a capacitor (107), and a control circuit (111) on the secondary side (100b), monitoring a current to/from the capacitor (107) to the ground potential of the secondary circuit (100b) and issuing a mains (101) failure signal in case the current does not meet predefined conditions, preferably in case no such current is detected.

Abstract: Provided is a display device which comprises a display panel including a plurality of pixels displaying an image based on a driving voltage, a reference voltage generator converting a sensing driving voltage generated by measuring the driving voltage into a sensing driving current, converting a preset reference driving voltage into a reference driving current, comparing the sensing driving current and the reference driving current, and generating a first reference voltage and a second reference voltage based on a difference between the sensing driving current and the reference driving current, a gamma voltage generator generating a plurality of gamma voltages by dividing the first reference voltage and the second reference voltage, and a data driver converting image data into a data voltage based on the gamma voltages and providing the data voltage to each of the pixels.

Abstract: A device for controlling illumination of a scene using an LED array that includes a plurality of individually addressable LEDs, built into a hand-held device, is disclosed. The device includes a controller arranged to configure a first sub-set of the LEDs to provide illumination for a target spot in the scene and to monitor movement of the hand-held device. If the controller detects movement of the hand-held device while the first sub-set of the LEDs is providing illumination, then the controller may configure a second sub-set of the LEDs to continue providing illumination of the target spot. In this manner, even though there may have been movement that could change the specific area illuminated by the LED array, the movement is compensated for, at least partially, by selecting one or more other LEDs to illuminate the same target spot in a manner that is substantially unnoticeable to the user.

Abstract: A light driver includes a converter configured to generate a drive current based on a rectified input signal for driving a light source, and an output correction circuit coupled to an output of the converter and configured to measure the drive current and to generate a correction signal to dynamically control a DC-level of the drive current of the converter based on the drive current and a reference signal corresponding to a desired DC-level of the drive current.

Abstract: There is provided a light switch system having a housing and a controller secured to the housing. The controller is to control a light source to generate a light output based on a demanded output. The light source is to illuminate at least a portion of an operational volume. The light switch system also has an occupancy sensor communicatively coupled to the controller. The occupancy sensor is to generate an occupancy indicator to indicate whether the operational volume is occupied. Moreover, the light switch system has a functional module communicatively coupled to the controller. In addition, the controller is to divert power from the light source to the functional module by controlling the light source to a the light output to produce an altered light output based on the occupancy indicator.

Abstract: The invention relates to an LED-driver, comprising an actively switched PFC circuitry and a bus interface for a wire-bound bus, wherein a voltage supply for the bus interface for powering the bus is tapped off the output voltage of the active PFC circuitry, further comprising a control circuitry for a feedback control of an output voltage of the actively switched PFC by controlling a switch of the PFC, wherein the time constant of the feedback control of the control circuitry is faster during time periods in which the bus interface is transmitting or receiving signals, compared to time periods without activity.

Abstract: The present disclosure relates generally to systems and methods for transient response improvements in electrical circuits. More particularly, the present disclosure relates to systems and methods for suppressing overshoot currents and overshoot durations in circuits using switching regulators, such as driver circuits for LED applications. Embodiments of the invention relate to an LED driver that utilizes transient suppression systems and method for LED applications.

Abstract: The present disclosure is directed to systems and method for adaptive fusion of sensor data from multiple sensors. The method comprises: collecting sensor data generated by a plurality of sensors in an environment; determining the quality of the sensor data generated by each sensor of the plurality of sensors, the quality metric corresponding to a suitability of the sensor data for performing a given task; selecting, via an assessment artificial intelligence program, one or more sensors from the plurality of sensors based on the determined quality metric of the sensor data that yields a desired accuracy for performing the given task; and selecting for each sensor of the plurality of sensors selected, via the assessment artificial intelligence program, a machine learning algorithm from a predetermined set of machine learning algorithms based on the determined quality metric of the sensor data that yields the desired accuracy for performing the given task.

Abstract: The present invention discloses lamp bead chipsets and colored lamp devices. The colored lamp device includes a power off signal controller and several lamp bead chipsets connected in series and/or in parallel. The power off signal controller generates power supply signals having alternating high and low levels and different high level widths, and load the power supply signals onto a power cord and a ground wire. The lamp bead chipset controls the display state of each LED in an LED lamp set according to the different high level widths and output on the power cord and the ground wire. Several power supply high level widths on the power cord and the ground wire are adjusted to generate codes, so as to achieve different color change effects. The lamp bead chipsets and colored lamp devices described herein reduce the complexity of traces and the wire costs.

Abstract: A networked lighting control system having the capability to identify problems within its own wireless network. The system includes a plurality of luminaire nodes. Each luminaire receives, via a wireless mesh network, a series of messages containing an output control indication. The indication represents a “delta” value, which the luminaire uses, for each received message, to generate a control signal to increase the light output of its lamp by a known amount. The luminaire transmits a series of messages containing the output control indication, wherein each transmitted message corresponds to each message that had been received by the luminaire. After a series of such “delta” messages have been originated and broadcast over the mesh network, the luminaires that failed to receive some of the messages will appear dimmer than the luminaires that received all, or more of, the messages, providing a visualization of signal propagation problems.

Abstract: Driver circuits are described for driving one or more light emitting diodes. A driver circuit may comprise an interface configured to receive control signals from a processor and a signal generator configured to generate pulse modulation (PM) signals based on the control signals, wherein the PM signals define phase shifts. In some examples, the signal generator is configured to: determine whether the control signals indicate a phase shift change; and in response to determining that the control signals indicate a phase shift change, terminate a current PM signal at a beginning of a PM period, and generate a new PM signal in the PM period, wherein the new PM signal includes the phase shift change. In other examples, termination may be avoided in some situations, for example, upon determining that a new phase shift is not sufficiently less than a previous phase shift.

Abstract: A display device may include a pixel, an emission control driver, and a timing controller. The emission control driver may supply an emission control signal set for controlling emission periods of the pixel. The timing controller may receive a received bit stream that includes a first bit set and a second bit set, may determine a first duty ratio of the emission control signal set using bits of the first bit set without using any bit of the second bit set. The first bit set may include at least two bits. The second bit set may include at least one bit. The emission control signal set may control the pixel to operate according to the first duty ratio for each frame of a first frame group.

Abstract: A lamp assembly, a lamp system, a method for assembling lamp system, and a method for disassembling lamp system are provided. The lamp assembly includes a lamp and a connector assembly. The lamp includes a frame body, a light source assembly, and an electrical connector assembly. The frame body has an accommodating space. The light source assembly is fixed on the frame body. The electrical connector assembly is disposed in the accommodating space and is connected to the light source assembly. The electrical connector assembly includes a first connector and a second connector, and the first connector and the second connector are connected to each other by a power wire and a signal wire. The connector assembly includes an electrical connecting member. The connector assembly is configured to be connected to the aforementioned lamp and another lamp through the electrical connecting member.

Abstract: A system is described for an enhanced bow piece of a stringed musical instrument. The enhancement includes a visual display element attached to the bow. The appearance of the display changes in response to bow motion, bow position, and one or more user-supplied inputs (e.g. buttons). The system can be entirely self-contained and used as a normal instrument bow, providing a light-up/responsive effect while the user plays their instrument in an otherwise normal way. There is some capability for multiple self-contained units to be locally synchronized, providing group-based visualizations. Alternatively, these devices can be monitored and controlled by an external control system.

Abstract: An LED light string control system includes an LED light string, a voltage generation apparatus, and a control module. The control module controls the voltage generation apparatus to change a signal provided to the LED light string to a first voltage level according to a first logic of a light command, and to change the signal to a second to a second voltage level according to a second logic of the light command. The control module controls the voltage generation apparatus to change the signal to a distinction voltage once first logics and/or second logics of the light command appear consecutively.

Abstract: A work light assembly for providing 360° illumination for a workspace includes a base and an illumination module, which is cylindrical. A first leg is engaged to the base and extends along the base from proximate to an upper end and linearly past a lower end thereof. A plurality of second legs extends from the base, which, along with the first leg support the base on a surface. The illumination module is hingedly engaged by a first end to the base, proximate to the upper end. The illumination module is selectively positionable in a first configuration, in which it extends along the base and past the lower end, and a second configuration, in which it extends transversely from the base and is substantially perpendicular to the surface. A power module is engaged to the illumination module so that the illumination module can provide 360° illumination.

Abstract: A bowling enhancement system is for a bowling lane, and may include a mobile device, an image sensor arranged over the bowling lane and configured to generate image data of the bowling lane, projectors arranged over the bowling lane and configured to generate a set of projected images onto the bowling lane, and a server. The server may be configured to cause a given projector to project a pairing token onto the bowling lane, when receiving the pairing token from the mobile device, establish a communication link with the mobile device to receive a given game characteristic from the mobile wireless communications device, determine a tracking path of a bowling ball traveling on the bowling lane based upon the image data, and selectively change the set of projected images based upon the tracking path of the bowling ball and the given game characteristic.