Abstract: An integrated circuit (IC) die and integrated circuit (IC) chip packages having such dies are described that leverage the symmetry of the arrangement of micro-bumps to advantageously reduce interposer cost and size requirements. In one example, an integrated circuit (IC) die is provided. The IC die includes a die body, a plurality of programmable tiles disposed in the die body, and a plurality of micro-bumps disposed in the die body. The die body includes a front face connecting a bottom exterior surface and a top exterior surface. A centerline of the die body is perpendicular to the front face and bifurcates the top exterior surface. At least two of the programmable tiles are of a common type. The micro-bumps adjacent the front face and coupled to the common type of programmable tiles have a substantially symmetrical orientation relative to a symmetry axis. The symmetry axis being one of (a) collinear with the centerline of the die body, or (b) parallel to the centerline of the die body.

Abstract: Computational systems implement problem solving using heuristic solvers or optimizers. Such may iteratively evaluate a result of processing, and modify the problem or representation thereof before repeating processing on the modified problem, until a termination condition is reached. Heuristic solvers or optimizers may execute on one or more digital processors and/or one or more quantum processors. The system may autonomously select between types of hardware devices and/or types of heuristic optimization algorithms. Such may coordinate or at least partially overlap post-processing operations with processing operations, for instance performing post-processing on an ith batch of samples while generating an (i+1)th batch of samples, e.g., so post-processing operation on the ith batch of samples does not extend in time beyond the generation of the (i+1)th batch of samples. Heuristic optimizers selection is based on pre-processing assessment of the problem, e.g.

Abstract: A backlight unit which significantly reduces overshoot of a light source driving current and audible noise includes a light source driven by a light source driving voltage, a light source controller controlling the light source driving voltage, and a soft starter generating a first soft start voltage by receiving a charge signal from the light source controller and outputting the first soft start voltage to the light source controller, and generating a second soft start voltage when the charge signal is not applied thereto and outputting the second soft start voltage to the light source controller.

Abstract: A semiconductor device suitable for low-voltage driving. The semiconductor device includes a first transistor, a second transistor, a power supply line, a circuit, and a memory circuit. The first transistor controls electrical continuity between the circuit and the power supply line. The memory circuit stores data for setting a gate potential of the first transistor. The second transistor controls electrical continuity between an output node of the memory circuit and a gate of the first transistor. The second transistor is a transistor with an ultralow off-state current, for example, an oxide semiconductor transistor. In a period for operating the circuit, a first potential is input to the power supply line and the second transistor is turned off. In a period for updating the gate potential of the first transistor, a second potential is input to the power supply line. The second potential is higher than the first potential.

Abstract: A dimming module and a solid state lighting device are shown. The dimming module includes a rectifying circuit, a first driving circuit, and a processing circuit. The rectifying circuit is configured to convert an AC voltage to a rectified voltage. The first driving circuit is configured to receive the rectified voltage to provide a first current so as to drive a first lighting module. The first driving circuit includes a first switch. The first switch turns ON or OFF selectively according to a first control voltage signal so as to control the first current. The processing circuit is configured to receive a dimming command, and adjust the first control voltage signal according to the dimming command. The first control voltage signal is configured to control a phase delay angle and a duty cycle of the first current.

Abstract: A dimming module and a solid state lighting device are shown. The dimming module includes a rectifying circuit, a phase control circuit, a processing circuit and a first driving circuit. The rectifying circuit is configured to convert an input AC voltage to a rectified voltage signal. The phase control circuit is configured to receive the rectified voltage signal and a dimming command, and output a control voltage signal correspondingly in which the phase control circuit controls a phase delay angle of the control voltage signal according to the dimming command. The processing circuit is configured to receive the control voltage signal and adjust a first driving voltage signal according to the phase delay angle. The first driving circuit is configured to receive the first driving voltage signal to drive a first lighting module.

Abstract: Devices and methods for resisting or preventing physical tampering of electronic components are described. A tamper resistant apparatus comprises a tampering sensor having a surface at which a first and second conductive portion are disposed. A core-shell particle (or a plurality of particles) is disposed on the surface of the tampering sensor. The core-shell particle has a liquid metallic core and a shell surrounding the core. When tampering occurs, forces associated with the tampering cause the core-shell particle to rupture. The released liquid metallic core material can form a conductive pathway between the first and second conductive portions of the tampering sensor. The tampering sensor triggers a security response when the first and second conductive portions are electrically connected to each other by the metallic material from the ruptured core-shell particle(s).

Abstract: A dimming and correlated color temperature (CCT) tuning lighting system comprises a controller and multiple light-emitting diode (LED)-based lighting devices. Each lighting device comprises a control circuit, at least two LED driving circuits, and at least two types of LED-based light sources. When the controller receives low voltage dimming and CCT tuning signals from its inputs, it generates pulse-width modulated (PWM) dimming and CCT tuning signals delivered to the control circuit and at least two LED driving circuits in each of the multiple lighting devices, which then individually power the at least two types of LED-based light sources to emit a light with a lighting level and a CCT. The controller may be integrated in each of the multiple lighting devices to further simplify system design, ultimately achieving the lowest cost.

Abstract: A scalable lighting control system comprising a plurality of room lighting control systems each comprising a load controller electrically connected to a lighting load and one or more in-room devices, such as lighting control devices, occupancy sensors, and light sensors. Each in-room device is configured for transmitting room control messages to the load controller over a room wireless network. The scalable lighting control system further comprises a plurality of network bridges each configured for removably coupling to at least one load controller of a room lighting control system to connect the room lighting control system to a centralized wireless network. Each network bridge is configured for receiving centralized control messages over the centralized wireless network and transmitting the centralized control messages to the connected load controller.

Abstract: A backlight unit includes a main light-emitting diode (“LED”) array, a sub LED array, an LED driver which individually controls an on-off operation of the main LED array and an on-off operation of the sub LED array and includes a first switch, a second switch, a third switch, a fourth switch, a sub switch control unit, and a main switch control unit, and a direct current (“DC”)/DC converter unit which receives an input voltage and provides a DC voltage to the LED driver where the sub switch control unit controls the first and third switches so that one of the first and third switches is turned on and the other is turned off, and the main switch control unit controls the second and fourth switches so that one of the second and fourth switches is turned on and the other is turned off.

Abstract: Techniques are described to allow a low-cost light fixture to produce light with a relatively high color rendering index (CRI) across a range of color temperatures. A rectified AC voltage may be provided to multiple groups of light-emitting diodes (LEDs) having characteristics related to a range of color temperatures and a target CRI level. The multiple groups of LEDs may be controlled based on a received control signal, such that the combined groups of LEDs produce combined light having a produced color temperature within the range of color temperatures, and having a produced CRI level that is approximately the target CRI level. In some implementations, the received control signal is modified by a modification circuit, and the multiple groups of LEDs may be controlled based on the modified control signal.

Abstract: Methods and apparatus for plasma processing are provided herein. The method for controlling current ratio in a substrate processing chamber may include (a) providing a first RF signal to a first RF coil and a second RF coil at a first current ratio set point and a first current operating mode, (b) determining a first dynamic control limit for the first current ratio set point based on a value of the first current ratio set point and the first current operating mode, (c) measuring an amount of current supplied to each of the first and second coils, (d) determining the actual current ratio based on the measured amounts of current supplied to each of the first and second coils, (e) determining whether the actual current ratio determined is within the dynamic control limits, and (f) repeating steps (b)-(e) until the actual current ratio determined is within the dynamic control limits.

Abstract: A DC-DC converter has a pulse width control circuit producing a sequence of pulses, with an on time, an off time and a switching frequency. The on time as well as the switching frequency are both varied in dependence on a dimming setting.

Abstract: The signal transmitting device includes: a transmitter-side input for receiving a first DC voltage; a transmitter-side output for outputting a second DC voltage; and a voltage conversion circuit configured to convert the first DC voltage into the second DC voltage. Further, the signal transmitting device includes a control circuit configured to control the voltage conversion circuit so that the second DC voltage has a voltage value (selected from a first voltage value and a second voltage value) which changes according to transmission data in a predetermined transmission period.

Abstract: A kit for illuminating a room includes a two-part contact switch mounted on a top edge of an interior surface of the door and a door rail contact mounted on a door track railing where the corresponding top edge rests when the door is completely opened. The door contact switch and the door rail contact switch are electrically connected to the light strip and a power source via a power adapter, respectively. When the door is completely opened, a contact plate of the door rail contact switch receives a plurality of spring-loaded contacts protruding from the door contact switch that completes a circuit, powers the light strip, in turn, illuminating the room.

Abstract: A resistor calibration system includes a reference resistor, a first control circuit, a second control circuit, a comparator, a multiplexer and a de-multiplexer. The first control circuit calibrates a first resistor and a duplicated first resistor. The second control circuit calibrates a second resistor. The comparator includes a first input terminal receiving a reference voltage, a second input terminal and an output terminal. The multiplexer includes a first input terminal coupled to the reference resistor and the first resistor, a second input terminal coupled to the duplicated first resistor and the second resistor, and an output terminal coupled to the second input terminal of the comparator. The de-multiplexer includes an input terminal coupled to the output terminal of the comparator, a first output terminal coupled to the first control circuit, and a second output terminal coupled to the second control circuit.

Abstract: An AC power supply drives and controls an array of non-thermal plasma emitters at desired frequencies at a controlled power level. The power supply comprises a step-up transformer, a balanced driver, and a controller. The transformer operates at the resonant frequency of the combined capacitance of the array and the cable connecting the array to the power supply. The power into the array is monitored by the controller and can be adjusted by the user. The balanced driver may be driven directly by the controller. The controller monitors the phase relationship between the transformer primary winding voltage and the gate drive voltage, and adjusts the drive frequency to resonance. Alternatively the balanced driver is configured as an oscillator which drives the transformer at resonance by default. A signal from the transformer driver generates an interrupt to the controller for synchronizing current and voltage measurements for power control.

Abstract: A controller comprising: a first holding location for storing or buffering two or more lighting control frames of a lighting control protocol, for transmission one-after-another in a temporal sequence over a lighting network in order to control at least one lighting device of the lighting network; and a second holding location for storing or buffering at least one status query of a device management protocol, for transmission over the lighting network in order to query a status of at least one lighting device of the lighting network. The controller further comprises an arbitrator configured to automatically detect when one of the lighting control frames is redundant with respect to another of the lighting control frames within a predetermined number of said frames in said sequence, and in response to automatically cause the status query to be transmitted in place of the redundant lighting control frame in said sequence.

Abstract: A multi-processor having a plurality of data processing units and memory units has a bus system that selectively interconnects the processing units and the memory units.

Abstract: A lamp device with power outage sensing abilities to detect when a primary power source is interrupted and to energize primary LEDs when primary power source is ON, and to energize backup LEDs when the primary power source is OFF. The power outage sensing circuit may also detect a light switch condition allowing for greater efficiency in emergency power supply usage. A battery charging system may provide battery thermal protection and multiple charge rates to improve battery charging as a function of the temperature in the lighting device.