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| Number | Title | Issue Date |
| 8188687 | Light emitting device for AC power operation Disclosed is an improved light-emitting device for an AC power operation. A conventional light emitting device employs an AC light-emitting diode having arrays of light emitting cells connected in reverse parallel. The arrays in the prior art alternately repeat on/o... | 05/29/2012 |
| 7579790 | Multiple gas discharge lamp interleave trigger circuit Embodiments are disclosed for apparatus and methods for increasing the reliability of the flash discharge response in pulsed gas discharge lamps. One embodiment includes a system comprising two gas discharge lamps having cathodes and anodes connected in parallel to ... | 08/25/2009 |
| 7420332 | LED lighting device A first LED array including a first capacitor, LED blocks, and a second capacitor that are connected in series with each other, a second LED array having a similar configuration to the first LED array, and a third LED array having a similar configuration to the firs... | 09/02/2008 |
| 7341397 | Utility trailer and safety barrier for street repair A utility trailer provides a frame defining a forward open bottom work space, a medially rearward deck and a rearwardmost extendable impact attenuator. Hitch structure encloses the forward portion of the work space. The impact attenuator is deployable spacedly rearw... | 03/11/2008 |
| 7321207 | Inverter apparatus and liquid crystal display including inverter apparatus An inverter apparatus for driving a plurality of lamp units including a plurality of lamps is provided. The inverter apparatus includes a plurality of inverters. Each inverter includes a delay block delaying an input ON/OFF signal to generate an output ON/OFF signal... | 01/22/2008 |
| 7316486 | LED lighting arrangement A lighting arrangement (1) which is advantageous in particular for the interior lighting of a vehicle or aircraft. The lighting arrangement (1) includes a plurality of light emitting diodes (2a-2e, 3a-3 | 01/08/2008 |
| 7242148 | Continuous current control circuit modules of series string bulbs type (II) The invention relates to a continuous current control circuit module of series string bulbs type (II), which can maintain the normal current and voltage across each of the bulbs when any of series connected bulbs burn out. The string includes a shunt in every bulb a... | 07/10/2007 |
| 7218045 | Planar light generating device and display device having the same A light generating device includes a body having discharge spaces generating light in response to a voltage signal, and electrodes providing the voltage signal to the discharge spaces. The discharge spaces are apart from each other and arranged substantially paralle... | 05/15/2007 |
| 7207688 | Interactive shoe light device An interactive shoe light device includes at least one power source, at least one motion switch to generate an activation signal in response to an electrical engagement within the motion switch, the activation signal indicating at least duration of electrical engage... | 04/24/2007 |
| 7193368 | Parallel lamps with instant program start electronic ballast In a current fed electronic ballast multiple lamps are operated in a parallel circuit arrangement. The ballast provides pre-heating to the cathodes of the lamps for a period of time before an open circuit voltage is ramped up to the preferred starting voltage of the... | 03/20/2007 |
| 7157860 | Control device for flashlight systems in airports A control for a flashlight system in an airport, includes flash units which are connected to an energy supply line and, on the output side, to respective flashlights of the flashlight system via a light cable. In order to avoid unwanted high voltages, each flash lig... | 01/02/2007 |
| 7157866 | Light emitting element driving device and portable apparatus equipped with light emitting elements A driving device for driving multiple (R-, G-, and B-) groups of LEDs operative at different voltages, utilizing a battery supplying a power supply voltage of a step-up voltage. Under normal operating conditions, R-LEDs are driven by the battery voltage, but G- and ... | 01/02/2007 |
| 7142173 | Kinetic device and method for producing visual displays A visual display device is constructed which uses the “persistence of vision” effect of human vision and responds to kinetic motions of the user as the device is held and swung by an operator. Displays may consist of alphanumeric and graphic data with image symm... | 11/28/2006 |
| 7131748 | Decorative lights with addressable color-controllable LED nodes and control circuitry, and method A decorative lighting apparatus includes a decorative light strand having a plurality of addressable color-controllable red-green-blue (RGB) light-emitting diode (LED) nodes positioned therealong; a decorating selector which provides a plurality of user-selectable s... | 11/07/2006 |
| 7111808 | Arrangement of a safety and information device on at least one passenger seat in a passenger cabin of a commercial aircraft A safety and information device is arranged on at least one passenger seat in the passenger cabin of a commercial aircraft, wherein several passenger seats are arranged within the passenger cabin along at least one longitudinal aisle, and wherein display elements fo... | 09/26/2006 |
| 7106010 | Backlight module for reducing interference A backlight module for reducing interference includes: a plurality of radiating units, a plurality of transferring units, and a phase control unit. Each transferring unit is connected to a corresponding radiating unit and can provide a set of driving power sources t... | 09/12/2006 |
| 7102540 | Remote access of an airport airfield lighting system Remote monitor and control of an airfield lighting system. A processing system local to the airport is provided in communication with the airfield lighting system for monitor and control thereof, the airfield lighting system producing airfield information for proces... | 09/05/2006 |
| 7081722 | Light emitting diode multiphase driver circuit and method A method and a circuit for driving light emitting diodes (LEDs) in multiphase are provided. A string of LEDs divided into groups connected to each other in series is provided. Each group is coupled to ground through separate conductive paths. A phase switch is provi... | 07/25/2006 |
| 7067986 | Frequency controlled lighting system A method and apparatus for illuminating lighting elements in one or more predetermined patterns. A preferred frequency controlled lighting system implementing this method includes a motion switch, a controller, and lighting elements. The motion switch creates an act... | 06/27/2006 |
| 7012384 | Illumination device for vehicle compartment An illumination device having a first light source, a second light source, whose luminous color differs from that of said first light source, and a controller for controlling the illuminating condition of each of the first light source and the second light source is... | 03/14/2006 |
| 7012379 | Cuttable illumination device A cuttable illumination device has a first lamp, a second lamp, a current source element, and a voltage breakdown element connected such that the first lamp may be removed from the device without affecting the function and performance of the remaining portion of the... | 03/14/2006 |
| 6995525 | Light display with color and clear lights A light display power box receives a string of clear and a string of colored lights thereby displaying clear and colored lights simultaneously to form selected light display patterns. The light display power box includes a plurality of outlets for receiving at least... | 02/07/2006 |
| 6941869 | Sensor for monitoring electronic detonation circuits A voltage sensor (10) for monitoring electronic ignition circuits (1) which contains a plurality of igniters (4) connected to an ignition line (3) and an ignition device (2) connected to the ignition line (3) to program the ... | 09/13/2005 |
| 6943506 | Inverter apparatus and liquid crystal display including inverter apparatus An inverter apparatus for driving a plurality of lamp units including a plurality of lamps is provided. The inverter apparatus includes a plurality of inverters. Each inverter includes a delay block delaying an input ON/OFF signal to generate an output ON/OFF signal... | 09/13/2005 |
| 6919695 | Overvoltage protection for hid lamp ballast The present invention relates to a device for operating a high-pressure discharge lamp, comprising a switched mode power supply circuit (SMPS) for supplying power to the high pressure discharge lamp from a supply voltage, the power supply circuit comprising a half b... | 07/19/2005 |
| 6873122 | Apparatus for operating discharge lamps An apparatus for operating a plurality of discharge lamps is to be designed so as to be more cost-effective. A first current control device, in particular a heat-sensitive resistor having a positive temperature coefficient, is connected in parallel with a first cont... | 03/29/2005 |
| 6858993 | Driving means for driving light sources in various illuminating pattern and luminous shoes applied thereof This invention relates to a driver circuit for driving at least one light source to light in various illuminating patterns according to a predetermined switching operation, and luminous shoes having the driver circuit. A driving means for driving at least one light ... | 02/22/2005 |
| 6731080 | Multiple ballast and lamp control system for selectively varying operation of ballasts to distribute burn times among lamps A control device and signaling are provided to operate selected numbers of the ballasts in a multi-ballast, multi-lamp luminaire. The luminaire has a control input for receiving a control signal from a wall switch, for example. The number of ballasts operated by the... | 05/04/2004 |
| 6346782 | Multiple lamp ballast system A multiple lamp instant start ballast system has multiple fluorescent lamps and a ballast. The lamps have substantially similar current characteristics. The ballast has a ballast circuit operable to supply instant start starting voltages and operating cur... | 02/12/2002 |
| 6157144 | Sequentially-activated multiple flashlamp lamphouse system and method In a system and method for providing a uniform light source for color correction processes, the system includes a plurality of flashlamps for generating a theoretical point light source. The system further includes a power supply for sequentially activati... | 12/05/2000 |
| 6157140 | Sequentially pulsed energy flow loop A plurality of energy emitters, such as flash tubes for visibile light or speakers for audio emissions, are placed in communication with an appropriate trigger circuit, one circuit for each of the energy emitters. Each trigger circuit is placed in communi... | 12/05/2000 |
| 6157139 | Electrical light socket A light socket is disclosed that has a built-in integrated circuit for rectifying the alternating current received from an electrical outlet and limiting the direct current produced. The light socket is specifically suited for low-current, low-voltage app... | 12/05/2000 |
| 6104140 | Motion activated illuminating footwear and light module therefor with continuous/sequential oscillating lights A light module for use with a plurality of light sources mounted to footwear, includes a power supply, an oscillator circuit, a power supply transmission circuit and a switch. The oscillation circuit supplies power to the light sources to sequentially cau... | 08/15/2000 |
| 6091204 | Control circuit for controlling decorative light string A control circuit for controlling a decorative light string by using a number of three-wire flashing control lamps is disclosed. In the circuit, a common contact of latter switching type three-wire flashing control lamp is connected to a normal open conta... | 07/18/2000 |
| 6011359 | Multiple flash/single lamp circuit for fast sequential strobing The present invention discloses a multiple flash/single lamp circuit for fast sequential strobing. More particularly, the present invention comprises a flashlamp, a pair of capacitors, a voltage multiplier and regulator to charge the capacitors, a pair of... | 01/04/2000 |
| 5994845 | Electrical light socket A light socket is disclosed that has a built-in integrated circuit for rectifying the alternating current received from an electrical outlet and limiting the direct current produced. The light socket is specifically suited for low-current, low-voltage app... | 11/30/1999 |
| 5986412 | Single ballast for powering plural high intensity discharge lamps A ballast circuit for a plurality of serially connected, high pressure gas discharge lamps comprises an electromagnetic ballast arrangement receptive of an input power signal, providing an output ballast voltage for driving the plurality of lamps, and pro... | 11/16/1999 |
| 5962991 | Intelligent outdoor lighting control system A new and improved outdoor lighting control system for an outdoor lighting system network for automatically sensing, conveying, and recording data relevant to the operation of the lighting system network so that both control and maintenance can be perform... | 10/05/1999 |
| 5892296 | Circuit for cyclically driving several loads A basic circuit (10) includes an oscillator (11) whose frequency can be set via a frequency-determining component (15). At outputs (A1-A5), the basic circuit (10) cyclically generates pulses by which consumers (L1-L5) are driven. A switch (18) is connecte... | 04/06/1999 |
| 5828183 | Flashing control circuit for decorative light string A flashing control circuit for a decorative light string is disclosed. The flashing control circuit includes a number of flashing control bulbs arranged on the decorative light string sequentially at a suitable interval. Each of the flashing control bulbs... | 10/27/1998 |
