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| Application No. | Application Title | Issue Date |
| 20120126720 | THREE-DIMENSIONAL IMAGE DISPLAY DEVICE A three-dimensional image display device includes a luminance controller receiving a three-dimensional enable signal, a backlight data signal and at least one starting signal of a scan starting signal, a vertical blank starting signal and a backlight starting signal. Th... | 05/24/2012 |
| 20120126719 | LED DRIVER CIRCUIT AND METHOD An LED driver circuit and a method for driving the LED driver circuit. In accordance with an embodiment the LED driver circuit includes a voltage follower circuit and a calibration circuit coupled to the voltage follower circuit. First and second currents may be injecte... | 05/24/2012 |
| 20120105505 | ADJUSTING A BRIGHTNESS LEVEL OF A SIDE EMITTING BACKLIGHT DISPLAY DEVICE Embodiments of methods, systems, or apparatuses relating to adjusting a brightness level of at least one luminescent body disposed, at least in part, on a side emitting backlight display device are disclosed. In a particular embodiment, for example, one or more values r... | 05/03/2012 |
| 20120104975 | LIGHTING SYSTEM ELECTRONIC BALLAST OR DRIVER WITH SHUNT CIRCUIT FOR LIGHTING CONTROL QUIESCENT CURRENT Ballasts and LED drivers are presented for powering at least one light source, in which a shunt circuit provides a high impedance to allow operation of the light source when the AC input power exceeds a power threshold value, and provides a low impedance when the AC inp... | 05/03/2012 |
| 20120080420 | POWER CONTROL CIRCUIT AND METHOD FOR STABILIZING A POWER SUPPLY The present invention provides a power control circuit connectable to a load adapted to receive a power supply, the power control circuit adapted to absorb power from the power supply and adapted to deliver power to the power supply to stabilize at least one electrical ... | 04/05/2012 |
| 20120081039 | METHOD AND APPARATUS FOR A LED DRIVER WITH HIGH POWER FACTOR A control circuit of a LED driver according to the present invention comprises an output circuit, an input circuit and an input-voltage detection circuit. The output circuit generates a switching signal to produce an output current for driving at least one LED in respon... | 04/05/2012 |
| 20120081081 | SYSTEM AND METHOD FOR CONVERTING AN AC INPUT VOLTAGE TO A REGULATED OUTPUT CURRENT A converter according to one embodiment converts an AC voltage to a regulated output current provided to a DC load of a Z-type configuration. A filter capacitor is provided to average current flowing through the load. The converter includes a rectifier network for recti... | 04/05/2012 |
| 20120081038 | DISPLAY PANEL DRIVING VOLTAGE SUPPLY APPARATUS AND METHOD A display panel driving voltage supply apparatus and method is disclosed. Said supply apparatus comprises: a timing controller for providing a voltage control signal and a switch control signal; a level shifter, receiving the voltage control signal for selecting a first... | 04/05/2012 |
| 20120081037 | CIRCUIT AND LIGHTING SYSTEM FOR DIMMING AN ILLUMINANT The invention relates to a method and to a circuit arrangement for dimming an illuminant (1) according to digital dimming values (Dd) by regulation. In order to ensure that slow dimming is possible at high resolution, but the regulation takes place qui... | 04/05/2012 |
| 20120068624 | LIGHTING DEVICE WITH MULTI-POSITION JOYSTICK Various lighting devices and related methods are provided. In one example, a portable lighting device includes a light source, lighting control circuitry, a body, and a tailcap assembly attached to an end of the body. The tailcap assembly includes a multi-position joyst... | 03/22/2012 |
| 20120068626 | Auto-Sensing Switching Regulator to Drive A Light Source Through A Current Regulator An auto-sensing switching regulator, and systems and methods including same, is disclosed. The auto-sensing switching regulator includes a switching regulator and a controller coupled thereto. The controller is configured to provide a control signal to the switching reg... | 03/22/2012 |
| 20120068625 | LIGHTING DEVICE WITH MULTIPLE ELECTRICAL CONNECTIONS Various lighting devices and related methods are provided. In one example, a portable lighting device includes a light source, lighting control circuitry, first and second power terminals adapted to receive a battery power source, first and second electrical connections... | 03/22/2012 |
| 20120049763 | DRIVE CIRCUIT FOR LEDs This present invention provides a drive circuit to drive LEDs. The drive circuit comprises a transistor and a voltage regulator. The transistor is connected to the LEDs in series. The voltage regulator receives a first voltage to generate a second voltage to control the... | 03/01/2012 |
| 20120049764 | HIGH-PRESSURE DISCHARGE LAMP LIGHTING DEVICE, HIGH-PRESSURE DISCHARGE LAMP DEVICE USING THE SAME, PROJECTOR USING THE HIGH-PRESSURE DISCHARGE LAMP DEVICE, AND LIGHTING METHOD FOR HIGH-PRESSURE DISCHARGE LAMP From the start lighting until a predetermined time passes, a high-pressure discharge lamp 4 is supplied a constant current Ib until the lamp power reaches a wattage Plow. When the lamp power reaches the wattage Plow, current is supplied to maintain... | 03/01/2012 |
| 20120051444 | METHOD AND APPARATUS FOR COMMUNICATING MESSAGE SIGNALS IN A LOAD CONTROL SYSTEM A system for independent control of electric motors and electric lights includes a plurality of two-wire wallstations coupled in series via power wires between an alternating-current (AC) source and a light/motor control unit. The light/motor control unit is preferably ... | 03/01/2012 |
| 20120043913 | Dimmer Output Emulation A lighting system includes a dimmer output voltage emulator to cause a power converter interface circuit to generate an emulated dimmer output voltage. In at least one embodiment, the emulated dimmer output voltage corresponds to an actual dimmer output voltage but is u... | 02/23/2012 |
| 20120032613 | CIRCUITS AND METHODS FOR DRIVING LIGHT SOURCES A driving circuit for powering a light-emitting diode (LED) light source includes a converter circuit, an energy storage element and a switch element. The converter circuit provides a first output voltage on a first power line to provide power to the LED light source an... | 02/09/2012 |
| 20120025737 | CURRENT MIRROR CIRCUIT A current mirror circuit duplicates an input current that flows through an input terminal, and outputs an output current via an output terminal. A first transistor, a second transistor, and a diode are sequentially arranged in series between a power supply terminal to w... | 02/02/2012 |
| 20120026761 | ADAPTIVE CURRENT LIMITER AND DIMMER SYSTEM INCLUDING THE SAME In an embodiment, an adaptive current limiter includes a sense element, a current pass element, and a controller. The sense element includes a first sense terminal coupled to a power supply terminal and a second sense terminal. The sense element generates a sense voltag... | 02/02/2012 |
| 20120025736 | INTEGRATED CIRCUIT SWITCHING POWER SUPPLY CONTROLLER WITH SELECTABLE BUCK MODE OPERATION An integrated circuit (IC) controller for a switching power supply has a selectable operating mode for supporting multiple switching power supply topologies. The IC controls current by controlling a cycle rate of the switching power supply to provide a constant or varia... | 02/02/2012 |
| 20120019168 | ILLUMINATION CONTROL SYSTEM AND METHOD FOR CONTROLLING ILLUMINATION According to one embodiment, an illumination control system includes a motion sensor and a central management server. The motion sensor acquires position information and action information of a person. The central management server holds holding position information of ... | 01/26/2012 |
| 20120019169 | DIMMABLE AMALGAM LAMP AND METHOD FOR OPERATING THE AMALGAM LAMP WHILE DIMMED A dimmable amalgam lamp is provided having a quartz glass tube enclosing a discharge chamber comprising a filling gas, and closed by pinching at both ends thereof, through which at least one current feedthrough is fed through one coil-shaped electrode each in the discha... | 01/26/2012 |
| 20120019167 | Backlight Control Circuit and Method Thereof A backlight control circuit and method thereof are provided to control the backlight of a backlight module so as to enhance the dynamic contrast ratio and save power. The backlight control circuit includes an average luminance detection circuit, a luminance distribution... | 01/26/2012 |
| 20120013269 | POWER SUPPLY APPARATUS FOR AN LED LAMP The present invention provides a power supply apparatus for an LED lamp, which mainly uses an isolation transformer to convert a high voltage AC input signal into a low voltage AC signal and thus generate a driving voltage for driving an LED lamp, comprising: a waveform... | 01/19/2012 |
| 20120013270 | LIGHT-EMITTING DEVICE AND METHOD A light-emitting method is provided. The light-emitting method is applied in a light-emitting device. The light-emitting device includes an emitting member to emit light. The light-emitting method includes detecting an air pressure of the light-emitting device and contr... | 01/19/2012 |
| 20120013256 | Gravity Controlled Lighting device A lighting device having a housing incorporating an electrical circuit, a light source and a source of power with a gravity controller. The gravity controller regulates the power applied to the light source in response to the relationship between the position angle and ... | 01/19/2012 |
| 20120007510 | CONTROL MODULE WITH POWER SUPPLY DETECTION AND LAMP UTILIZING THE SAME A lamp with power supply detection includes a power supply unit, a control module and a lighting module. The power supply unit provides a direct current (DC) voltage. The control module is coupled to the power supply unit, receives and stores the DC power, and generates... | 01/12/2012 |
| 20120007524 | Terminal Device and Computer-Readable Storage Medium A terminal apparatus and a computer-readable storage medium capable of achieving reduction of power consumption by appropriately controlling lighting of a display unit are provided. A CPU lights or extinguishes a display unit after the end ... | 01/12/2012 |
| 20120007523 | BACKLIGHT MODULE AND AN LCD THEREOF A backlight module and a liquid crystal display (LCD) device thereof are proposed. The backlight module includes a DC/DC converter producing a positive/negative voltage level. The backlight module can output the positive and negative levels of driving voltage from an ou... | 01/12/2012 |
| 20120004509 | Drive Circuit for Light Emitting Diode A drive circuit for a light emitting diode, and applications thereof, are disclosed. In one example, the drive circuit includes an input voltage and a ground, and a current control block including a voltage supply connection, a ground connection, a first voltage sense c... | 01/05/2012 |
| 20120001571 | BACKLIGHT MODULE DETECTING ABNORMAL LAMP TUBES AND AN LCD THEREOF A backlight module detecting abnormal lamp tubes and an LCD employing such a backlight module are proposed. The LCD includes a voltage calculator for detecting voltage applied on ends of a lamp tube to monitor the lamp tube. Once the lamp tube becomes abnormal, the volt... | 01/05/2012 |
| 20120001570 | METHOD OF CONTROLLING AN LED, AND AN LED CONTROLLER A method is disclosed of controlling a LED, comprising driving the LED with a DC current for a first time, interrupting the DC current for a second time such that the first time and the second time sum to a period, determining at least one characteristic of the LED whil... | 01/05/2012 |
| 20110316447 | CIRCUITS AND METHODS FOR POWERING LIGHT SOURCES A controller for regulating a current through a light-emitting diode (LED) light source includes a first reference pin for receiving a first reference signal indicative of a target average level, and a dimming control pin for receiving a dimming signal. The controller r... | 12/29/2011 |
| 20110316449 | LOAD DRIVING CIRCUIT A main transformer is arranged such that a load is connected to its secondary winding side. A first error amplifier generates a feedback signal that corresponds to the difference between a detection signal which indicates the electrical state of the load and a predeterm... | 12/29/2011 |
| 20110309756 | Road Lamp Dimming Control Device A road lamp dimming control device comprises a signal processor, a power supplier, a driver and a light emitting module. The single processor is used for receiving an inputted electric current and a control signal. The control signal is decoded into a dimming control si... | 12/22/2011 |
| 20110309770 | LED LAMP HEAD WITH VARIABLE BRIGHTNESS A lamp head is configured to be electrically coupled solely to a power-supply element and a return element. A power voltage carried by the power-supply element is regulated by a control element. The lamp includes at least one LED configured to emit light, and a first ci... | 12/22/2011 |
| 20110309772 | SYSTEMS AND METHODS FOR LUMINESCENT DISPLAY A ruggedized luminescent display system for displaying electronic images or light from a surface of an object, according to various aspects of the present invention, may comprise a resilient transmissive material disposed within a cavity of the object and may have a sur... | 12/22/2011 |
| 20110309771 | PROPORTIONAL REMOTE CONTROL Disclosed is a proportional controller that utilizes a deflected metal cantilever that provides a progressive change in capacitance for a given deflection that is used to generate a proportional control signal. In addition, a efficient step-up converter 1500 is d... | 12/22/2011 |
| 20110304279 | OPEN CIRCUIT VOLTAGE CLAMP FOR ELECTRONIC HID BALLAST An electronic high intensity discharge (HID) ballast (102) is presented which includes a dual mode buck converter (120) providing a DC output voltage (122) to drive an inverter (140), where the buck converter (120) regulates the DC out... | 12/15/2011 |
| 20110304278 | Constant Power Limiter and Illumination Device Having Same A constant power limiter includes a control circuit and a power source circuit thereof, and the control circuit includes a voltage detection circuit configured for detecting a voltage of power source; a current detection circuit configured for detecting a load current; ... | 12/15/2011 |
