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"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Application No. | Application Title | Issue Date |
| 20100109565 | APPARATUS AND METHODS FOR REDUCING THE POWER CONSUMPTION OF FLUORESCENT LIGHTS Systems for reducing the power consumption of fluorescent lights are provided. The systems can be used in new construction as well as retrofitted into existing buildings employing overdriven fluorescent lights without significantly affecting the operation of utility pow... | 05/06/2010 |
| 20090096388 | DRIVER FOR LIGHT EMITTING SEMICONDUCTOR DEVICE An electronic device is provided comprising a driver for light emitting semiconductor devices. The driver includes a first MOS transistor (MN1) coupled with a channel to the light emitting semiconductor device at an output node. The first MOS transistor (MN1 | 04/16/2009 |
| 20080303453 | Illumination Control Apparatus Using a Pulsating Waves An illumination control apparatus using a pulsating wave is disclosed, in which a pulsating power is supplied to an electric power supplied to a fluorescent light stabilizer which needs an AC voltage. The level of the same is varied and supplied to an illumination contr... | 12/11/2008 |
| 20080211428 | MICROPROCESSOR-CONTROLLED MULTIFUNCTIONING LIGHT WITH INTRINSICALLY SAFE ENERGY LIMITING An intrinsically safe energy limited circuit for space-restricted applications includes a fuse and resistor in series with a protected circuit or component wherein the fuse dissipates most of the power when the protected circuit or component is short circuited.... | 09/04/2008 |
| 20080100233 | Apparatus Comprising a Charge Pump and Lcd Driver Comprising Such an Apparatus Apparatus comprising a charge pump (20) with multiple independently regulated outputs (V1, V2) for providing different voltage levels at each of said outputs. The charge pump (20) comprises a low voltage input (12), on/off regulation (... | 05/01/2008 |
| 20070229000 | Power saver device for public lighting systems and method thereof This invention is referred to an energy saving device which supplies the high efficiency sodium steam lamps and a method providing additional savings of electrical energy by means of the temporary reduction in the luminous flow of a high efficiency sodium steam lamp. Th... | 10/04/2007 |
| 20070205729 | AUXILIARY QUARTZ LAMP LIGHTING SYSTEM FOR HIGH INTENSITY DISCHARGE LAMP BALLASTS The invention comprises an auxiliary lamp controller and related circuits to operate an auxiliary lamp and circuit to light auxiliary lamps at 120 VAC and 50-60 Hz current connected to an electronic HID ballast operating at a frequency of 50-60 Hz to over 400 kHz and vo... | 09/06/2007 |
| 20070070585 | Lighting equipment Improvements to light equipment are disclosed, including modular constructions of both lighting fixtures and of units for distribution and, if desired, dimming. ... | 03/29/2007 |
| 20050140314 | Current control circuit A current control circuit controls a current from a current drawing circuit to which a primary coil of a transformer is connected. A first N channel transistor has a source connected to the current drawing terminal and has a body diode that directs a current from the so... | 06/30/2005 |
