Abstract: Disclosed is a performance directing system that simultaneously controls cheering lighting devices of audiences by linking a performance hall and a remote place. According to an embodiment of the inventive concept, it is possible to identically implement and provide performance directing effects on audience seats of a performance hall to audiences at a remote place. Accordingly, audiences at the remote place may have the same experience as watching a performance at an actual performance site.

Abstract: An ad-hoc lighting network comprised of a plurality of light units, each of the light units including a light source, a manual input component, memory, a transmitter, a receiver, and a processing unit. A method of deploying the lighting network may include steps of providing a plurality of light units, placing each of the light units within a communication range, causing each of the light units to enter PAIRING MODE, causing each of the light units to add, into its network list, other unique identifiers of other light units; and causing each of the light units to enter PAIRED MODE. Light units function identically with respect to received reserved commands. Any light unit can broadcast commands, causing all light units in the network, or a subset thereof, to execute the command. Such commands may cause the desired lighting configuration.

Abstract: An antenna structure includes a metal plate and a spiral radiator. The metal plate is provided with a first surface and a second surface that are disposed oppositely. An accommodating groove is formed in the metal plate and adjacent to the first surface. The spiral radiator is mounted in the accommodating groove and insulated from the metal plate, and the spiral radiator is provided with a feed end used to be connected to a feed source.

Abstract: A method of restricting control of one or more lighting units (110) in a lighting system (100) is disclosed. The lighting system (100) comprises the one or more lighting units (110), a first control device (130) for controlling the one or more lighting units (110) and a portable control device (120) for controlling the one or more lighting units (110). The method comprises: determining a position of the portable control device (120) relative to a surface (140), setting the one or more lighting units (110) to a first control mode or a second control mode in dependence on the position of the portable control device (120) relative to the surface (140).

Abstract: An antenna device is formed by arranging a plurality of radiation elements each radiating a circularly polarized wave in a matrix of three rows and ten columns. The plurality of radiation elements include radiation elements of four types having a positional relationship rotationally symmetric with each other. The plurality of radiation elements are included in a first element group in which radiation elements are arranged in a matrix of three rows and three columns in one end portion side and a second element group in which radiation elements are arranged in a matrix of three rows and three columns in the other end portion side. A first center element disposed at a center of the first element group is an element of a type obtained by rotating a second center element disposed at a center of the second element group by 180 degrees.

Abstract: Systems and methods for tuning a megahertz radio frequency (RF) generator within a cycle of operation of a kilohertz (kHz) RF generator are described. In one of the methods, a predetermined periodic waveform is provided to a processor. The processor uses a computer-based model to determine plurality of frequency parameters for the predetermined periodic waveform. The frequency parameters are applied to the megahertz RF generator to generate an RF signal having the frequency parameters during one or more cycles of operation of the kilohertz RF generator.

Abstract: A lighting array and a method of using the same facilitate a lighting strategy that dynamically provides the photosynthetic photon flux density needed by a plant throughout its stages of growth while reducing power loss and waste caused by providing excess light during all stages of plant growth. LED placement patterns may be used to form a number of lighting channels on an LED board or an array of LED boards. These lighting channels may be individually controlled such that the ON/OFF state, intensity, and wavelength, of a plurality of LEDs may be adjusted to provide variable illumination levels and wavelengths of light customized for attributes of the plants being illuminated, such as their stage of growth, size, type, and/or shape.

Abstract: Operation of an electrical load controller includes predetermining a duration of time based at least in part on a frequency of an alternating current (AC) waveform, the AC waveform oscillating though full cycles, selecting a detection window of time equal in duration to the predetermined duration of time, the selected detection window extending from a selected first time to a selected second time and straddling an expected time of a next zero-crossing of the AC waveform, monitoring a zero-crossing signal for a zero-crossing indication, of the next zero-crossing, occurring within the selected detection window, ascertaining a time of the next zero-crossing based on the monitoring, and selectively controlling a supply of AC power to a load, wherein the controlling uses the ascertained time of the next zero-crossing of the AC waveform to fire a switching circuit of the electrical load controller.

Abstract: An illumination control device includes a first acquisition unit that acquires color information and brightness information, a first storage unit that stores duty ratios of a red light emitting element, a green light emitting element, and a blue light emitting element for each piece of color information, a second storage unit that stores a reference duty ratio for each piece of brightness information, a second acquisition unit that acquires the duty ratios of the red, green and the blue light emitting elements corresponding to the color information, a third acquisition unit that acquires the reference duty ratio corresponding to the brightness information, a calculation unit that calculates the output duty ratios by multiplying the duty ratios by the reference duty ratio, and an output unit that outputs the pulse signals with the output duty ratios to the red, green and the blue light emitting elements.

Abstract: A method of controlling a power convertor to perform diming control for a light-emitting diode (LED) load, can include: adjusting a length of a switching period of the power converter in accordance with a dimming signal; and controlling the power converter to generate a drive current corresponding to the dimming signal.

Abstract: A lighting system comprising a plurality of controllable lighting devices (15) distributed in an area to be illuminated and an artificial intelligence (20) adapted to learn traffic data and to determine the lighting settings of said plurality of controllable lighting devices (15), wherein said artificial intelligence (20) comprises: —a plurality of intelligent devices (22) arranged in said area, each associated with at least one of said controllable lighting devices (15), wherein each intelligent device (22) comprises sound sensing means (25) adapted to acquire sound data and a local neural network (21a) adapted to learn traffic data based on the acquired sound data, to predict local traffic events and to process local lighting commands, within predetermined lighting setting limits, for the at least one associated controllable lighting device, —at least one general neural network (21b) remote with respect to the plurality of intelligent devices (22), and —sound training means comprising image sensing means (3

Abstract: Provided is an artificial light source setting method and an artificial light source setting system for controlling secondary metabolites of plant and provide an artificial light source setting method and an artificial light source setting system for controlling secondary metabolites of plant, which predict content of the secondary metabolites of plant by measuring a light interception amount by using a cultivation environment of plant, a three-dimensional structure model of plant, and optical simulation and set an artificial light source according thereto.

Abstract: In an illumination control device, a first effect control unit acquires brightness information corresponding to waveform height for each piece of unit time information when effect information for changing brightness is acquired, acquire reference duty ratios corresponding to the acquired brightness information from color tables corresponding to color information added to the effect information, and output pulse signals of the output duty ratios corresponding to the acquired reference duty ratios. Also, a second effect control unit acquires the color information corresponding to the waveform height for each piece of unit time information when the effect information for changing color is acquired, acquire reference duty ratios corresponding to the brightness information added to the effect information from the color tables corresponding to the acquired color information, and output pulse signals of the output duty ratios corresponding to the acquired reference duty ratios.

Abstract: Techniques for adjusting a color mixing system depending on beam clipping include receiving target information indicative of a target color of light emitted from the light fixture; receiving a beam clipping system setting for a beam clipping system, wherein the beam clipping system is configured to clip a portion of a beam of light; determining a target color mixing system setting based on the target information and the beam clipping system setting; and controlling a color mixing system according to the target color mixing system setting so as to cause the light fixture to emit light having the target color.

Abstract: The invention relates to a system (1) for assisting a user in configuring a lighting system (10), in which the lighting system comprises a lighting device (15-17) and a switch (34,35) for providing power to the lighting device. The system is configured to receive at least one signal, determine from the at least one signal that the lighting device has recently been power switched, and determine whether a user-defined power-switch light setting has been set for the lighting device. The power-switch light setting is a light setting that is activated when the lighting device is power switched. The system is further configured to provide a notification to a user in dependence on the lighting device having recently been power switched and no user-defined power-switch light setting having been set for the lighting device. The notification recommends the user to set the user-defined power-switch light setting for the lighting device.

Abstract: Provided is a vehicle antenna applied to a vehicle including a sun roof. The vehicle antenna includes a first sun roof forming opening and a second sun roof forming opening exhibiting a rectangular shape and being formed, on a roof of the vehicle, in parallel to have long sides facing each other, the roof being formed of a conductive material, a first power feeding point provided to a long side of the first sun roof forming opening on a facing side, a second power feeding point provided to a long side of the second sun roof forming opening on a facing side, a hot-side conducting wire connected to the first power feeding point, and an earth-side conducting wire connected to the second power feeding point.

Abstract: A lighting fixture includes a solid-state light source, communications circuitry, a memory, and processing circuitry. The memory stores common security credentials, wherein the common security credentials are pre-installed during a factory calibration process. The processing circuitry is coupled to the solid-state light source, the communications circuitry, and the memory. The processing circuitry is configured to cause the solid-state light source to provide a desired light output. Further, the processing circuitry is configured to join a common network using the common security credentials, wherein only devices with the common security credentials are permitted to join the network.

Abstract: A lighting fixture having a light source, a light sensor, a communication interface, and circuitry is described. In addition to controlling the light source, the circuitry is adapted to monitor for a light signal provided from a handheld device via the light sensor; upon receiving the light signal, measure a signal level associated with the light signal; and effect transmission of the signal level to the handheld device via the communication interface. In one embodiment, the circuitry is further configured to receive an instruction to monitor for the light signal from the handheld device via the communication interface such that the circuitry begins monitoring for the light signal upon receiving the instruction.

Abstract: A remote control device may be configured to be mounted over the toggle actuator of a light switch and to control a load control device via wireless communication. The remote control device may include a base portion and a rotating portion supported by the base portion so as to be rotatable about the base portion. The remote control device may include a control circuit and a wireless communication circuit. The control circuit may be operably coupled to the rotating portion and to the wireless communication circuit. The control circuit may be configured to translate a force applied to the rotating portion of the remote control device into a control signal and to cause the communication circuit to transmit the control signal to the load control device.

Abstract: Disclosed is an electronic device including a metal bezel including a bezel patch separated through a bezel slit, a printed circuit board including a first conductive pattern and a second conductive pattern, which are separated through a substrate slit and a communication module transmitting or receiving an antenna signal, using an antenna element including the bezel patch, the first conductive pattern, and the second conductive pattern. The first conductive pattern is connected to a part of the metal bezel. The bezel patch and the second conductive pattern is arranged to be aligned vertically. A bezel cavity is formed between the bezel patch and the second conductive pattern.