Abstract: A wearable device and method for operating the same are provided. The wearable device includes an antenna element, a first matching circuit, a second matching circuit, and a switch element. The first matching circuit has a first impedance value. The second matching circuit has a second impedance value different from the first impedance value. The switch element is configured to determine whether the antenna element is electrically connected with the first matching circuit or the second matching circuit.

Abstract: Systems and methods are provided for Integrated Circuit (IC) identification, authentication, and tamper detection. Die identification, authentication, and tamper detection techniques are described that employ capacitive sensing of on-chip interconnect. The signal and power routing in ICs have nominal capacitance values that are characteristic of their foundry, and the variance of these values, due to process tolerances, is unique to each device. Measuring these capacitances provides not only support for determining the authenticity of the device and fabrication site, but also provides distinct identification of each part. By integrating Capacitance-to-Digital Converters (CDCs) with low power and area overhead, capacitance values from intrinsic functional nets can be reported, and the need for separate additive test circuitry can be avoided.

Abstract: Apparatuses and methods for calibrating adjustable impedances of a semiconductor device are disclosed in the present application. An example apparatus includes a register configured to store impedance calibration information and further includes programmable termination resistances having a programmable impedance. The example apparatus further includes an impedance calibration circuit configured to perform a calibration operation to determine calibration parameters for setting the programmable impedance of the programmable termination resistances. The impedance calibration circuit is further configured to program the impedance calibration information in the register related to the calibration operation.

Abstract: An integrated circuit comprising a plurality of multiplier-accumulator circuits, connected in series, wherein the plurality of multiplier-accumulator circuits includes a first MAC circuit, including a multiplier to multiply first data and first multiplier weight data and output first product data, and an accumulator, coupled to the multiplier of the first MAC circuit, to add second data and the first product data and output first sum data. The plurality of multiplier-accumulator circuits further includes a second MAC circuit including a multiplier to multiply third data and second multiplier weight data and output second product data, and an accumulator, coupled to the multiplier of the second MAC circuit and the accumulator of the first MAC circuit, to generate and output second sum data. A first load-store register is coupled to an output of the accumulator of the first MAC circuit and an input of the accumulator of the second MAC circuit.

Abstract: The application provides a light device control system, a light device controller and a control method thereof. The light device controller includes: a detection circuit for detecting an input voltage; and a control unit coupled to the detection circuit, the control unit controlling the detection circuit to perform continuous detection during a predetermined interval, and the detection circuit sends a plurality of detection results due to continuous detection to the control unit, wherein whether a corresponding light device is failed is determined based on the plurality of detection results.

Abstract: The present disclosure relates to a reconfigurable logic-in-memory device using a silicon transistor, according to the embodiment of the present disclosure, the reconfigurable logic-in-memory device using a silicon transistor comprises the silicon transistor including a drain region, a first channel region, a second channel region, a source region, and a gate region, wherein the silicon transistor performs a first channel operation while forming a first positive feedback loop in which an electron is a majority carrier in the first channel region and the second channel region depending on a level of a gate voltage Vin applied through the gate region or performs a second channel operation while forming a second positive feedback loop in which a hole is a majority carrier in the first channel region and the second channel region depending on the level of a gate voltage Vin applied through the gate region.

Abstract: A luminating module includes a base, a radio frequency antenna and a luminance module. The base includes a circuit layer, an isolation layer, and a heat-dissipating layer. And the isolation layer is disposed between the circuit layer and the heat-dissipating layer. The radio frequency antenna is disposed at the circuit layer. Also, the radio frequency antenna receives a radio analog control signal. The radio frequency module is disposed at the circuit layer. In addition, the radio frequency module transforms the radio analog control signal into a digital control signal. The luminance module is integrated on the base and electrically coupled to the circuit layer. Besides, the luminance module illuminates based on the digital control signal. Specifically, the base, the radio frequency antenna, the radio frequency module and the luminance module integrate with each other via the circuit layer.

Abstract: Methods and apparatus for implementing a control apparatus for a light fixture for externally controlling the current to the LED light emitter of a landscape LED light fixture. In an exemplary embodiment a control apparatus for controlling current to an LED light source in a landscape lighting device includes an LED driver, a user control with a control setting indicator, and a driver housing including setting indicators.

Abstract: The invention describes a method of controlling a segmented flash (10) having a plurality of flash segments (S1, S2, . . . , Sn), which method comprises the steps of measuring the forward voltages (Vf1, Vf2, . . . , Vfn) of the flash segments (S1, S2, . . . , Sn); and adjusting the brightness of the flash segments (S1, S2, . . . , Sn) on the basis of the measured forward voltages (Vf1, Vf2, . . . , Vfn) to achieve a desired illumination profile (P) for the segmented flash (10). The invention further describes a segmented flash system (1) comprising a segmented flash (10) with a plurality of flash segments (S1, S2, . . . , Sn), wherein each flash segment (S1, S2, . . . , Sn) is arranged to illuminate a portion (20) of a scene (2); and a flash driver (11) adapted to perform the steps of the inventive method to adjust the brightness of the flash segments (S1, S2, . . . , Sn).

Abstract: A matrix light source intended to be supplied with a voltage and having a plurality of electroluminescent semiconductor element-based elementary light sources and a common substrate in contact with an integrated circuit. The integrated circuit includes, for each elementary light source, a switching device for selectively connecting it to a voltage source on the basis of a first control signal. The substrate includes, for at least one of the elementary light sources, an open-circuit fault detection circuit for detecting an open-circuit fault with the elementary light source.

Abstract: Some embodiments present wearable devices that communicate with other like devices via wireless signals and respond to them based on criteria that the wearer controls. According to some embodiments, the wearable devices are bracelets that allow wearers to identify, primarily by way of multicolored light displays, others based on specific criteria relating to an event or specific need. These criteria are also useful for allowing the bracelets to be controlled by a single coordinator who creates an event for the wearers to opt into (e.g. the arena manager at a sports game, the emcee at a wedding, the coordinator of a meet and greet event, etc.).

Abstract: The lighting apparatus includes a LED module, a constant current source, a bridge rectifier, a silicon-controlled rectifier, a wireless module and a detector. The lighting apparatus receives an alternating current power to generate a light. The constant current source provides a driving current to the LED module. The bridge rectifier converts the alternating current power of a first frequency to a direct current power with a second frequency. The second frequency is two times of the first frequency. The silicon-controlled rectifier is connected to the alternating current power and the bridge rectifier for adjusting the direct current power with a chopping signal. The wireless module receives an external control signal. The detector generates a dimming control signal supplied to the constant current source to adjust the driving current according to both the external control signal and the chopping signal.

Abstract: An LED tube lamp and an impedance detection method thereof are provided. The LED tube lamp includes a power supply module comprising an impedance detection controller, configured to perform, before the LED tube lamp being lighted up, an impedance detection to determine whether the LED tube lamp is electrically connected to a foreign external impedance in series. When the LED tube lamp is connected to the foreign external impedance in series, the impedance detection controller causes at least two transient variations to an operating current of the LED tube lamp and limits the operating current of the LED tube lamp to not exceed 5 MIU in root-mean-square (RMS), in which a duration of each transient variation does not exceed 1 millisecond when the impedance detection controller performs the impedance detection.

Abstract: A method (400) for analyzing output of lighting units (10) in a lighting system (100) includes the steps of: (i) simulating (430), based on data from a photometric database (310), the output of a lighting unit; (ii) receiving and storing (420), from a database (330) of historical information, historical observed data about the output of the lighting unit; (iii) receiving (450) observed data (36) about the output of the lighting unit; (iv) generating (440) a model of the lighting system based at least in part on the simulated output of the lighting unit and the historical observed data about the output of the lighting unit, wherein the model comprises localization information for the lighting unit; and (v) comparing (470) the received observed data about the output of the lighting unit to the generated model, wherein a fault is detected if the observed data varies from the generated model by a predetermined amount.

Abstract: An integrated circuit device may include a programmable fabric die having programmable logic fabric and configuration memory that may configure the programmable logic fabric. The integrated circuit device may also include a base die that may provide fabric support circuitry, including memory and/or communication interfaces. The first die and the second die may be coupled using a multi-purpose interface that may allow communication between the first die and the second die. The multi-purpose interface may allow concurrent access to the base die by the programmable logic fabric and the configuration memory by using multiple channels over the multi-purpose interface.

Abstract: A moving body configured to move autonomously includes: a light emitting device configured to emit light in radial directions with respect to a vertical axis of the moving body; an acquisition unit configured to acquire a moving direction of the moving body; and a light-emitting control unit configured to make the light emitting device emit light using luminous colors previously associated with each direction of the radial directions with reference to the moving direction acquired by the acquisition unit, in which the light emitting device is installed so as to be able to emit light with at least one of the luminous colors within an arbitrary range of 180° in the radial directions.

Abstract: A luminaire-based positioning system including a plurality of luminaires, each respective luminaire including a luminaire identifier. The system includes a gateway including a luminaire node map of commissioned luminaires with a commissioned luminaire identifier and commissioned location coordinates of each commissioned luminaire. The gateway includes an undesignated luminaire roster of undesignated luminaires with a set of undesignated location coordinates. Further, the gateway includes a plurality of projected received signal strength indication (RSSI) values. Additionally, the gateway includes programming to determine an association of an uncommissioned luminaire to a safest fit undesignated luminaire of the undesignated luminaire roster. Further, programming to assign to the uncommissioned luminaire the set of undesignated location coordinates of the safest undesignated luminaire.

Abstract: An electronic device may be provided with antennas for receiving signals in first and second ultra-wideband communications bands. The antennas may include a resonating element formed from conductive traces on a dielectric substrate. The substrate may be mounted to an underlying flexible printed circuit. A fence of conductive vias may extend from the resonating element, through the substrate and the flexible printed circuit, to a ground plane on the flexible printed circuit. The fence may form a return path for the antenna. A shielding ring may be formed on the substrate. Additional fences of vias may couple the shielding ring to the ground plane. If desired, the resonating element may include a patch that is not shorted to the ground plane. The fences of vias, the conductive traces, and the ground plane may form a continuous antenna cavity for the resonating element.

Abstract: A wireless controller for detecting events and controlling illumination of one or more light fixture is disclosed. The device includes a wireless transceiver, a processor, an input sensor, and an output control module. The wireless controller can be used with a the wireless lighting control system, including one using a wireless mesh network. The controller is configurable for the input sensor and output control module operating in either an interdependent mode or an independent mode. In the interdependent mode the input sensor and output control module are logically/functionally related, and in the independent mode the input sensor and output control module are logically/functionally unrelated.

Abstract: Methods, devices, and systems for a current converter circuit for airfield ground lighting are described herein. In some examples, one or more embodiments include a bi-directional switch, an inductor to store energy in response to the bi-directional switch being on, and an output capacitor to discharge power to an LED, where the bi-directional switch can switch off to cause the inductor to discharge to the output capacitor in response to a voltage across the output capacitor being less than a threshold voltage.