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Discharge lamp lighting apparatus and projector
A polarity-reversal control circuit gives a polarity-reversal order so that the polarity of an inverter is inverted each time the polarity-reversal timing...
Bypass circuit for neutral-less controller in lighting control system
A device provides a bypass path for leakage current of a neutral-less controller in a lighting control system for selectively supplying line voltage to a load....
Method and system for an electronically adaptive photometry for roadway
Provided is an outdoor lighting assembly including at least one lighting arrays having one or more light sources configured for lighting a plurality of zones....
Lamp dimmer system
A lamp dimmer system for dimming multiple lamps in a room having unswitched receptacles, and switched receptacles under control of a single wall switch. A user...
Environment optimization for space based on presence and activities
A method and system for facilitating at least first and second different activities within a first space that includes a first set of environmental control...
Lighting switch apparatus and lighting switching method
Disclosed herein are a lighting switch apparatus and a lighting switching method, which can perform lighting control by blocking or passing light from a...
Microcontroller-based multifunctional electronic switch
A microcontroller based multifunctional electronic switch using a detection circuit design to convert external motion signals into message carrying sensing...
Luminaire with touch pattern control interface
The present invention relates to a luminaire (100) comprising a plurality of controllable light sources (106), a touch sensitive member (108) configured to...
Auxiliary power supply circuit of two wire dimmer
An auxiliary power supply circuit of a two wire dimmer, comprising: an auxiliary source capacitor (20) and a cutoff switch (30) constituting a series branch, a...
Address initialization of lighting device units
In a lighting device, a primary control unit (103) and a group of light units (107) are arranged in a power supply chain, each light unit (107) of said group...
Independently adjustable current and voltage AC-AC converter
The present disclosure is directed to an alternating current (AC) to AC converter circuit for independently adjusting a current and voltage to adjust a light...
Energy saving OLED lighting system and method
Described herein are systems, devices, and methods related to adjusting the intensity of specific wavelengths in an illumination panel based on the presence of...
Electronic ballast for operating at least one first cascade of LEDs and
one second cascade of LEDs
An electronic ballast may include: a rectifier; a first unit including a first cascade of LEDs and a first storage capacitor connected in parallel with the...
LED backlight source and liquid crystal display device
The present invention provides LED backlight source of liquid crystal display device. The LED backlight source includes: a boost converter, boosting input DC...
Methods and apparatus for improving backlight driver efficiency
An electronic device may be provided with display circuitry that includes a display timing controller, a backlight driver, a light source, and other associated...
Warm dim remote phosphor luminaire
A method of dimming an LED luminaire and a dimmable LED luminaire includes two pluralities of LEDs. The first plurality emits electromagnetic radiation at a...
Generating a voltage feedback signal in non-isolated LED drivers
An LED lamp comprises one or more LEDs, an inductive element coupled to an input voltage source and the one or more LEDs, and a switch coupled to the inductive...
Low flicker LED driving circuit with high power factor
An LED-based lighting apparatus comprises a rectified AC voltage source having a rectified output connected to a storage capacitor through a switching device, a...
PDM modulation of LED current
A modulated current of an LED device provides a capability to dim of the light produced by a string of LED device. The current modulation takes the form of...
Illumination device and illumination fixture
An illumination device includes a main light source block having a plurality of main light sources and a plurality of current limiters, and an auxiliary light...
LED driving device and method for improving harmonic current distortion on
a LED driving device
A LED driving device is provided. The LED driving device includes a multi-segment linear LED driver, first current-compensating device and second...
Spectral shift control for dimmable AC LED lighting
Apparatus and associated methods involve operation of an LED light engine in which a relative intensities of selected wavelengths shift as a function of...
Microcontroller burst mode to maintain voltage supply during standby mode
of a lighting system
Provided is a lighting system that includes a plurality of lighting elements which emit light, a power supply which supplies power, a lighting driver comprising...
LED lamp, and method of driving at least one LED string thereof
The Light Emitting Diode (LED) lamp is adapted for mounting in a fluorescent tube mount having a selectively activatable magnetic ballast powering two pairs of...
Light emitting diode driving system with lighting signals carried via
A light emitting diode driving system is applied to a light emitting diode lamp string, such that the light signal is carried through a power line to reduce the...
Lighting source and lighting apparatus
An LED lamp according to one aspect of the present invention including: a first LED array including first LED elements connected in series; a second LED array...
Electronic ballast and luminaire with the same
An electronic ballast includes an AC-DC converter, a DC-DC converter, a cooling device and a power supply. The cooling device is configured to cool the light...
Electrical device and method for compensating an effect of an electrical
current of a load, in particular an...
Electrical device (30) for compensating an effect of an electrical current (I.sub.L) of a load (14; 34), in particular an LED unit having one or more LEDs, when...
Device for controlling a storage device
A device for controlling the amount of energy stored in a storage device comprises a control unit that is adapted to adjust the power received via an input of...
LED lighting device
The purpose of the invention is to obtain, with a simple circuit configuration, an LED illumination device having an LED column driven by a pulsating voltage,...
Power control unit and method for controlling electrical power provided to
a load, in particular an LED unit,...
The present invention relates to a power control unit (40; 60) for controlling electrical power provided to a load (12), in particular an LED unit (12)...
Single-stage AC-DC power converter with flyback PFC and selectable dual
A single-stage AC-DC power converter for powering a load at a substantially constant current, and related methods and systems. The AC-DC power converter...
Light emitting diode (LED) lamp replacement driver for linear fluorescent
Provided is a driver circuit including an input port configured for coupling to a ballast and a transformer having a first side coupled to the input port. The...
Driver assembly for solid state lighting
A driver assembly for solid state lighting that includes at least one LED which includes a base element having an upper surface, a lower surface, an outer...
Lighting device with LED chip and protective cast
The lighting device has at least one LED chip that is potted by means of a potting compound, which potting compound has a light-transmissive, castable and...
Microwave choke system for use in heating articles under vacuum
A microwave heater equipped with a microwave choke and suitable for heating one or more articles under vacuum. The microwave choke inhibits leakage of microwave...
Multi-line microwave heating system with optimized launcher configuration
A microwave heating system configured to heat a plurality of articles and a process for using the same is provided. The heating system includes at least two...
Jacket heater and method for attaching same
The present invention relates to a jacket heater having a heating element built therein, the jacket heater containing: the heating element having a watt density...
Heating system for an aircraft or spacecraft
A heating system for an aircraft or spacecraft with a control device which includes at least one power line data transmission transceiver and one sensor...
Heating control unit comprising a sensor, ice protection system and method
for controlling a heater
A heating control unit, including a controller housing is provided. The heating control unit includes a microcontroller arranged within the controller housing,...
Network selection architecture
A user equipment device intelligent network selection architecture is provided that enables service provider policy driven dynamic intelligent network selection...
Communication pathway supporting an advanced split microwave backhaul
An advanced split ODU architecture is provided. The advanced architecture includes an indoor communication unit including a digital modem assembly configured to...
Access points to provide event notifications
An access point is to provide a wireless beacon packet via a wireless communication. The wireless beacon packet is to include an event notification in response...
Uplink behavior for a device using multiple radio access technologies
Improving uplink behavior for a user equipment (UE) having a radio capable of communicating using at least a first radio access technology (RAT) and a second...
Methods to enable efficient use of multiple radio access technologies
A device and method are provided for concurrently using a plurality of radio access technologies (RATs) to support a wireless-enabled communications session. A...
Mobile station and method for processing signals of the GSM and TD-SCDMA
A mobile station is disclosed for processing differing radio standards such as GSM/GPRS/EDGE and TD-SCDMA. The mobile station includes a channel decoding unit...
Communication apparatus equipped with switchable antenna
A communication apparatus equipped with switchable antenna mechanism is provided, where the communication apparatus includes at least a portion of a portable...
Self-organization network architectures for heterogeneous networks
Self-Organized Network (SON) architectures for heterogeneous networks are disclosed. In some embodiments, various SON architectures for heterogeneous networks...
Hierarchical tree network using TDMA protocol with 802.11 infrastructure
nodes for fire detection systems and...
A system includes multiple nodes, where each node includes one or more 802.11 wireless radios. The nodes are arranged in a hierarchical tree structure in which...
Relay communication system supporting multiple hops and access method
The present invention discloses a relay communication system supporting multiple hops comprising a first node, at least one second node and a core network,...