Abstract: The disclosure provides a communication device including a ground plane, an antenna and an extended grounding structure. The ground plane has a first side and a second side opposite to each other. The antenna is disposed at the first side and has a first feeding end. The extended grounding structure is disposed at the second side and includes a connection portion and a symmetrical structure. The symmetrical structure is electrically connected to the ground plane via the connection portion, wherein the symmetrical structure is symmetrical along a symmetry axis, and an extension line of the symmetry axis passes through the first side and the second side. The disclosure can effectively prevent antenna efficiency from being degraded due to an insufficient size of the ground plane, so as to significantly enhance communication quality.

Abstract: A state change device may be electrically connected to a switched receptacle, or to both the switched and unswitched receptacles, of an outlet. The state change device may generate a change of state signal when power is applied to, or removed from, the switched receptacle. The state change device may wirelessly communicate the signal. The state change device may include a load control circuit that may be configured to control the amount of power delivered to an electrical load that is electrically connected to the state change device. The state change device may receive commands directed to the load control circuit. The state change device may be deployed in a load control system and may operate as a control entity, such that the state change device may issue commands to one or more load control devices, responsive to the application or removal of power at the switched receptacle.

Abstract: A lighting management system includes communications circuitry, processing circuitry, and a memory. The memory stores instructions, which, when executed by the processing circuitry cause the lighting management system to receive a message from a lighting fixture via the communications circuitry, the message indicating a proximal presence of a detected mobile device to the lighting fixture, and performing one or more actions in response to receipt of the message. By performing the one or more actions upon receipt of the message as described above, a lighting system may be provided with additional functionality that enhances the lighting system.

Abstract: The present disclosure provides systems for generating tunable white light. The systems include a plurality of LED strings that generate light with color points that fall within blue, yellow/green, red, and cyan color ranges, with each LED string being driven with a separately controllable drive current in order to tune the generated light output.

Abstract: Systems, methods, and computer program products for commissioning and controlling a lighting system, and tracking mobile devices. The lighting system comprises a plurality of system nodes including smart nodes and light fixtures. The smart nodes communicate with the mobile devices and the light fixtures to facilitate configuration and adjustment of the lighting system. The smart nodes may also receive signals from legacy control devices, and map the received control signals to control signals that are compatible with the light fixtures. The smart nodes may transmit beacon signals having unique identifiers that are received by the mobile devices. The mobile devices may in turn communicate received signal strengths for the beacon signals back to the smart nodes. The smart nodes may store this tracking data in a database to determine where and how long the mobile devices are in a location and to provide location-based services.

Abstract: The present disclosure provides an intelligent lighting control system. A first switch control circuit of a first lighting control module of a plurality of lighting control modules is actuated. The actuation is detected at each lighting control module in the plurality of lighting control modules. The light sensor in each lighting control module are polled by the respective processor in each lighting control module, to detect a change in a light level. The change in the light level detected by the respective lighting control module is transmitting, from each lighting control module. The lighting control modules that detected the change in the light level are catalogued into a 1st zone of one or more zones.

Abstract: A method of controlling a power supply in a multi-input power supply system includes retrieving a prior input state flag from a memory of the multi-input power supply system, determining a first dimmer input of the multi-input power supply system based on the prior input state flag, determining whether the first dimmer input is currently valid, and in response to determining that the first dimmer input is not valid, determining whether a second dimmer input of the multi-input power supply system is currently valid, and in response to determining that the second dimmer input is valid, controlling the power supply based on a second input signal received through the second dimmer input.

Abstract: A multi-band energy harvesting system is provided. The system includes a plurality of harvesting antennas, wherein each of the plurality of harvesting antennas, operates a specific frequency band; and a plurality of harvesting units, wherein each of the plurality of harvesting units is coupled to a respective harvesting antenna and adapted to harvest energy at the specific frequency band of the respective harvesting antenna.

Abstract: There is provision of a method of controlling a plasma processing apparatus including a chamber in which a plasma is generated, a substrate holder, a radio frequency power supply configured to supply radio frequency electric power to the substrate holder, a matching device provided between the substrate holder and the radio frequency power supply. The method includes acquiring output impedance of the matching device in a state in which impedance matching is achieved; obtaining F-parameters indicating electrical characteristics of the chamber; calculating a degree of high harmonic component generation; and controlling the output impedance of the matching device based on the degree of high harmonic component generation.

Abstract: The invention provides a light-emitting diode (LED) driver and a driving method thereof. The LED driver includes a brightness code calculation circuit, a driving current generation circuit and a control circuit. The brightness code calculation circuit is configured to to receive a pulse width modulation (PWM) signal and perform a calculation operation comprising calculating a duty cycle of the PWM signal with respect to a period of the PWM signal and generating a brightness code according to the duty cycle of the PWM signal. The driving current generation circuit is configured to generate a driving current according to the brightness code. The control circuit is configured to detect a plurality of brightness codes generated by the brightness code calculation circuit repeatedly performing the calculation operation and determine whether or not to adjust an execution frequency of the calculation operation of the brightness code calculation circuit according to the brightness codes.

Abstract: An illumination system includes a measurement stage, a light-providing part, a light-receiving part, and a processing part. The light-providing part includes light sources arranged in a dome shape, which irradiate incident lights to a measurement target on the measurement stage. The light-receiving part acquires reflection lights. The processing part controls the light sources to be turned on/off according to a dome-shaped sine wave pattern. The processing part controls the light sources to be sequentially turned on/off by shifting N times according to the dome-shaped sine wave pattern for a specific measurement position of the measurement target, and calculates a phase at the specific measurement position, an average of intensities of N reflection lights, and a visibility of N reflection lights, from intensities of N reflection lights. Thus, material of the measurement target may be easily determined.

Abstract: The application provides a smart lighting control device capable of reducing standby power consumption, wherein a control instruction is received by a control module, then an enable signal is sent by a standby processing module according to status of a flag bit signal of the control instruction to a data transmission module and a logic control module; and the data transmission module receives the control instruction according to the enable signal and transmits a sampled control instruction to the logic control module; and the logic control module controls a lamp according to the control instruction when a standby instruction bit is invalid, and sends a standby instruction to the standby processing module when the standby instruction bit is valid; and the standby processing module disable the data transmission module and the logic control module according to the standby instruction, thereby standby power consumption of the lamp is reduced.

Abstract: A light-emitting diode driving system including a load, a power supply circuit and a light-emitting diode driving device is provided. The load includes one or more light-emitting diode strings. The power supply circuit outputs an output voltage to drive the load according to a feedback signal. The light-emitting diode driving device includes at least one current source, at least one comparator and a control logic circuit. The current source outputs a current to drive the load. The comparator compares a first voltage from the current source to a reference voltage and outputs a second voltage according to a comparison result. The control logic circuit includes a control node. The control logic circuit receives the second voltage through the control node and converts the second voltage to a control signal to adjust a resistance value of a variable resistor circuit. A light-emitting diode driving device is also provided.

Abstract: A light control device providing handsfree control of a lighting source using measures of the orientation of the lighting source is presented. The measurement of the orientation of the lighting source is monitored and while the orientation retains the light outputted by the lighting source within a designated area, the light output remains in an ON state. However, with the orientation of the lighting source indicates the light output may be outside the designated area, the light output is turned OFF. In addition, a method for calibrating the system to define the designated area is disclosed.

Abstract: The radome for vehicles includes a frontal layer (1) and a rear layer (2), both made from thermoplastic material, and it also includes a heating element (3) placed on the frontal layer (1), on its face opposed to the rear layer (2). The method for manufacturing the radome includes forming the frontal layer (1) with the heating element (3) placed on a face of the frontal layer (1); placing the conductive element(s) (5) in the heating element (3) ; forming the rear layer (2); assembling the frontal and rear layers (1, 2), so that the heating element (3) is on the face of the frontal layer (1) opposite to the rear layer (2). Some embodiments provide a radome with a heating function and an outstanding appearance.

Abstract: An ion generator includes a high-voltage transformer having a secondary side that is not grounded; a discharge wire-pattern; an induction wire-pattern; a discharge electrode connected to a first terminal via the discharge wire-pattern, the first terminal being disposed on the secondary side of the high-voltage transformer; and an induction electrode connected to a second terminal via the induction wire-pattern, the second terminal being disposed on the secondary side of the high-voltage transformer. The first terminal has a first width. The discharge wire-pattern includes a discharge wide region having a second width greater than the first width. The discharge wide region and the induction wire-pattern at least partly overlap each other in plan view.

Abstract: Aspects of the disclosure provide for a circuit including a binary-weighted DAC, a first transistor, a second transistor, a switch, a first current mirror, a second current mirror. The binary-weighted DAC is coupled between a first node and a second node and configured to receive a plurality of bits of a digital control signal. The first transistor has a source coupled to the first node, a drain coupled to a third node, and a gate coupled to a fourth node. The second transistor has a source coupled to the first node, a drain coupled to the third node, and a gate. The switch is coupled between the gate of the second transistor and the fourth node and configured to receive a partition control signal. The first current mirror is coupled to the third node and the second node. The second current mirror is coupled to the first current mirror.

Abstract: A device includes an antenna array with at least four antennas, wherein each antenna has its own feeder line terminal, wherein the feeder line terminals of antennas arranged directly adjacent to one another are geometrically offset from one another by 90° in each case. The device further includes a control device configured to feed the individual antennas via their respective feeder line terminals such that the antenna array exhibits different radiation patterns at different points in time. A first radiation pattern shows a polarized field distribution. According to the invention, a second radiation pattern exhibits an unpolarized field distribution.

Abstract: A method for optimizing the area coverage of a wireless network may include a lamp to perform this method. The lamp may have an input for connecting a network, a power supply unit for supplying all components of the lamp with an electric power taken from the input, a control unit for controlling the components of the lamp, at least one light source from the power supply unit and controlled by the control unit, and a network access point for providing at least one wireless network. The lamp may include at least one antenna associated with the network access point. The light source and antenna may be arranged and designed such that the radiation characteristics of the light are congruent with the radiation characteristics of the antenna of the wireless network.

Abstract: A device includes a switch, a controller electrically coupled to the switch, an RC circuit, a diode and a zero current detection circuit. The controller is configured to provide a control signal to control the switch to charge and discharge an inductor between a zero current state and a peak current state to provide a light emitting diode (LED) drive current. The RC circuit includes at least a first resistive element, a second resistive element, and a capacitive element. The diode is electrically coupled in parallel with the RC circuit. The zero current detection circuit has a first input electrically coupled to the RC circuit, a second input electrically coupled to a threshold voltage, and an output electrically coupled to the controller.