Bizarre Patents
Mouse device with a built-in printer
A mouse device for use as an input device of a computer is provided that includes a housing in which recording paper is loadable, and a printer unit provided within the housing for printing on the recording paper print information received from the computer.
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| Number | Title | Issue Date |
| 8089213 | LED fluorescent lamp Provided is a light-emitting diode (LED) fluorescent lamp using as light sources a plurality of LEDs, which are eco-friendly and can contribute to power conservation. The LED fluorescent lamp includes an LED array including a plurality of LEDs connected in series; f... | 01/03/2012 |
| 7919928 | Boost LED driver not using output capacitor and blocking diode An LED driver is disclosed that boosts an input voltage to drive any number of LEDs in series. The driver includes a switch-mode current regulator that supplies regulated current pulses to the LEDs. No high voltage output capacitor is used to smooth the current puls... | 04/05/2011 |
| 7791285 | High efficiency AC LED driver circuit In an AC drive circuit for LEDs, a current limiting capacitor connects to an AC source, a first circuit portion, including a first rectifying diode and a first power capacitor, connects between the current limiting capacitor and the source and a second circuit porti... | 09/07/2010 |
| 7372212 | Lamp, method of driving the lamp, backlight assembly and liquid crystal display device having the backlight assembly A lamp, a method of driving the lamp, a backlight assembly having the lamp, and a liquid crystal display (LCD) device having the backlight assembly are disclosed. The lamp includes a tube that contains gas and first through fourth electrodes. The first and second el... | 05/13/2008 |
| 7357528 | CCFL illuminated device and method of use Cold cathode fluorescent lamps (CCFLs), associated devices and methods of use, and more specifically, exit signs, traffic signals, informational and other signage and lighting devices utilizing CCFL-type devices are provided with novel connectors, mounting brackets,... | 04/15/2008 |
| 7323830 | Lighting arrangement having a fluorescent lamp, particularly a cold cathode lamp A lighting arrangement having at least one fluorescent lamp comprising a tube that has at least one light emitting region, a high-voltage terminal at a first end of the tube and a low-voltage terminal at a second end of the tube, an electrically conductive surface b... | 01/29/2008 |
| 7314304 | Backlight unit A backlight unit is disclosed, to remove an unnecessary portion from a PCB and to decrease the number of connectors and wires, which includes a plurality of light-emitting lamps arranged in one direction inside a lamp housing; first and second driving unit PCBs posi... | 01/01/2008 |
| 7314288 | Backlight system A backlight system for use with a liquid-crystal display provides longer lamp lifetime through uniform temperature distribution, offers improved brightness uniformity and enhanced power-supply system efficiency, and ensures safety through lowered voltages. Linear la... | 01/01/2008 |
| 7279849 | Apparatus for driving backlight of liquid crystal display This invention relates to a backlight driving apparatus of a liquid crystal display device, and more particularly to a backlight driving apparatus of a liquid crystal display device that includes: first and second transformers that boost an AC voltage to a boosted A... | 10/09/2007 |
| 7276911 | Detection of malfunctioning bulbs in decorative light strings A system for locating a malfunctioning bulb in a decorative light string uses an antenna that produces an output signal corresponding to the strength of the electric field produced by a portion of the light string near the antenna. An amplifier is coupled to the ant... | 10/02/2007 |
| 7268494 | Compact fluorescent lamp and luminaire using the same A compact fluorescent lamp comprises a fluorescent tube having a helical portion on at least a part thereof and turned down in the middle, a pair of tube ends thereof each provided with a discharge electrode, the pair of tube ends juxtaposing with each other in the ... | 09/11/2007 |
| 7251263 | Capillary discharge x-ray laser A compact, high repetition rate, extreme ultraviolet/soft x-ray laser and method for generating such radiation are described. Excitation of the gaseous or vaporous lasing medium is achieved by discharging energy stored in a solid-dielectric capacitive device through... | 07/31/2007 |
| 7218205 | Variable candela strobe with constant trigger voltage A variable candela strobe unit couples a substantially constant trigger voltage to a trigger electrode of a gas discharge tube irrespective of the voltage provided across the tube which is specified by a selected candela output value. The trigger voltage is great en... | 05/15/2007 |
| 7215080 | External electrode type discharge lamp and method of manufacturing the same In an external electrode type discharge lamp, a gadolinium oxide film obtained by baking solution containing at least one of gadolinium octate and gadolinium propionate is provided in a portion including at least a portion corresponding to an external electrode.... | 05/08/2007 |
| 7145343 | Repair device for decorative light shunt A repair device for fixing a malfunctioning shunt across a failed filament in a light bulb in a group of series-connected miniature decorative bulbs includes a high-voltage pulse generator producing one or more pulses of a magnitude greater than the standard AC powe... | 12/05/2006 |
| 7129650 | Lighting apparatus for high intensity discharge lamp A lighting apparatus of high intensity discharge lamp comprises a DC power source, a series connection of a first and a second transistors; a series connection of a first and a second capacitors connected in parallel with the series connection of the transistors; a ... | 10/31/2006 |
| 7122964 | Lamp and method of manufacturing the same In a lamp and method for fabricating the same, an outer surface of the lamp tube is dipped into a conductive transparent solution for forming an electrode by a predetermined depth, and then the lamp tube is pulled out from the solution. Accordingly, an electrode hav... | 10/17/2006 |
| 7095180 | Backlighting system for display screen A circuit board (14) on which the electronic components (2,3) providing power to a series of light sources (6) is positioned as near as possible to light sources in order to minimise parasitic energy losses which would be introduced by lengths o... | 08/22/2006 |
| 7049756 | Capacitive load driving circuit, capacitive load driving method, and apparatus using the same A capacitive load driving circuit (1) for charging and discharging a capacitive load (11) is provided with a voltage divider (5) for dividing a power supply voltage (VH) into a plurality of different voltages (V1–V9), a plurality... | 05/23/2006 |
| 7042167 | Back light device for liquid crystal displays Disclosed herein is a back light device for LCDs. The back light device includes an inverter to supply an alternating current or a pulse, a plurality of fluorescent lamps to radiate visible light, a reflection member to reflect the light radiated from the fluorescen... | 05/09/2006 |
| 7009346 | Driving an EL panel without DC bias An inverter is coupled to an EL lamp by a high pass filter including a series capacitor and a shunt resistor. The resistor is coupled in parallel with the EL lamp. The high pass filter has a time constant greater than 0.005 seconds and the capacitor has a capacitanc... | 03/07/2006 |
| 6960891 | Direct-type back light device The object of this invention is to provide a direct-type back light device, capable of maintaining uniform luminance, and reducing manufacturing costs and power consumption, in addition to being easy to assemble and to accomplish thinness. The back light device incl... | 11/01/2005 |
| 6940230 | Modular lamp controller Methods, apparatus, and systems are provided concerning modular lamp controllers. In one embodiment, a modular lamp controller dims a high intensity discharge lamp based upon occupancy. The lamp has a port within its fixture, and the port is coupled to a lamp capaci... | 09/06/2005 |
| 6856101 | Method and apparatus for switching of parallel capacitors in an HID bi-level dimming system using voltage suppression Switching of parallel capacitors in an HID bi-level lighting control system is accomplished through use of transient voltage suppression across an electronic relay for discharge of residual charge from a switched capacitor when combined peak voltage exceeds clamping... | 02/15/2005 |
| 6597128 | Remote discharge lamp ignition circuitry A starter circuit is provided for starting an HID lamp. The circuit de-couples the high voltage starting pulse from the input lines (ballast output lines) so that the starter can function properly regardless of the distance between the ballast and the lam... | 07/22/2003 |
| 6566822 | Electronic circuits for detecting filament breakage in gas discharge lamps Disconnection device for an electronic operating device for gas discharge lamps. The DC component is evaluated at a coupling capacitor (C5) specifically via a filament. Disconnection is performed in the event of filament breakage. In addition, the AC comp... | 05/20/2003 |
| 6515433 | Gas discharge fluorescent device Sputtering of the cathodes of a cold cathode fluorescent lamp is reduced or eliminated by removing electrodes altogether from the sealed envelope containing the gaseous medium. Electric field is then applied by means of electrically conductive members out... | 02/04/2003 |
| 6414447 | Discharge lamp lighting device and illuminating device A combination-type high frequency inverter connects an isolation leakage transformer, a smoothing condenser, a resonance condenser, a first field-effect transistor and a second field-effect transistor to a diode bridge and rectifies the voltage of an AC p... | 07/02/2002 |
| 6337543 | High power cold cathode gas discharge lamp using sub-electrode structures A high power cold cathode gas discharge system employs two electrode structures, where each structure includes a plurality of sub-electrodes connected in parallel to a driver so that the current delivered by the system is spread over multiple sub-electrod... | 01/08/2002 |
| 6335596 | Control device of a flash type movable decorating lamp A control device of a flash type movable decorating lamp comprises a high voltage converting circuit, an actuating circuit, a high voltage storage capacitor, a flash displaying circuit and other units. The time difference between charging and discharging ... | 01/01/2002 |
| 6326738 | Two wire light for electronic displays An apparatus for illuminating an electronic display such as an LCD. A single hot wire is connected to multiple capacitors each dedicated to a cold cathode fluorescent tube, and multiple tubes are incorporated to illuminate the electronic display. Multiple... | 12/04/2001 |
| 6232724 | Light emitting diode array An LED array composed of a plurality of LEDs is disposed on either side of a signal interconnection board, while metal plates are disposed on the other side of the signal interconnection board as positive and negative power source lines for driving the LE... | 05/15/2001 |
| 6147459 | Voltage-controlled ballast for gas-discharge lamps An electronic, externally controlled ballast has a control oscillator which feeds a fluorescent lamp via an invertor bridge and a resonant circuit. To keep the voltage constant, there are derived from the lamp AC voltage charge packets whose size (and/or ... | 11/14/2000 |
| 6111364 | Method and device to inhibit the flash photography of a vehicle A device and method that inhibits the ability of photographic equipment from obtaining a recognizable picture upon its recording media, of areas of a vehicle equipped with this invention. The leading edge or beginning of the photographic equipment's photo... | 08/29/2000 |
| 6031340 | Device and method for capacitive bi-level switching of high intensity discharge lighting A zero current crossing capacitive switching scheme for controlling the switching of a capacitor into and out of an HID lead ballast circuit at a time when a current through the capacitor is at or near zero. The capacitor switching enabling bi-level opera... | 02/29/2000 |
| 5973447 | Gridless ion source for the vacuum processing of materials Plasma beam apparatus and method for the purpose of vacuum processing temperature sensitive materials at high discharge power and high processing rates. A gridless, closed or non-closed Hall-Current ion source is described which features a unique fluid-co... | 10/26/1999 |
| 5896015 | Method and circuit for forming pulses centered about zero crossings of a sinusoid A circuit that forms a square wave pulse train signal wherein each pulse is centered about a zero crossing of a reference sinusoid. A first capacitor is coupled to be charged and discharged at equal rates by a first transconductance amplifier. Upon a firs... | 04/20/1999 |
| 5892327 | Circuit arrangement for operating a discharge lamp A circuit arrangement according to the invention for operating a discharge lamp (I) comprises a DC/AC converter (II) provided with a series circuit with a first and a second switching element, (1, 1', respectively) between a first and a second input termi... | 04/06/1999 |
| 5834902 | Discharge lamp igniting and operating curcuit having interference signal suppression from 9 KHz to 100 MHz A circuit arrangement for igniting and operating a discharge lamp is provided with input terminals for connecting a supply source, and a ground terminal, differential-mode and common-mode filters in which inductance and capacitance are incorporated, outpu... | 11/10/1998 |
| 5736819 | Parallel-tuned electronic ballast with special output voltage waveform Power to a self-oscillating inverter ballast is supplied from a DC voltage source through an inductor means having two separate windings on a common magnetic core--with one winding being positioned in each leg of the power supply. The inverter is loaded b... | 04/07/1998 |
