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| Number | Title | Issue Date |
| 7663320 | Display apparatus and control method thereof A display apparatus having a displaying part on which an image is displayed, includes: a backlight unit comprising a plurality of light emitting elements that emit different color light which illuminates the displaying part, the plurality of light emitting elements ... | 02/16/2010 |
| 7432659 | Back light unit and liquid crystal display device using the same A back light unit and an LCD device using the same in which current which flows in a plurality of light emitting diodes (LEDs) is uniformly controlled having a small PCB is provided. The back light unit includes a plurality of LED arrays having LEDs and a detector w... | 10/07/2008 |
| 7372010 | Combination socket and photosensor for measuring and adjusting intensity of lamp in the socket A combination socket and photosensor for measuring and adjusting intensity of a lamp in the socket of the combination socket and photosensor. A socket receives and electrically communicates with the lamp. A photosensor is operatively connected to the socket and meas... | 05/13/2008 |
| 7362220 | System and method for providing controlled illumination during detected hazardous conditions An integrated lighting control and threat detection system is provided. Once one of the threat detectors determines that a hazardous condition exists, it transmits a threat message to the lighting control system. The lighting control system then operates to turn on ... | 04/22/2008 |
| 7327090 | Electronic module, methods of manufacturing and driving the same, and electronic instrument An electronic module includes an EL section; a first substrate on which the EL section is formed; a second substrate attached to the first substrate; an integrated circuit chip mounted on the second substrate; a plurality of first power supply interconnects formed o... | 02/05/2008 |
| 7239309 | Display drivers Display driver circuitry for electro-optic displays, in particular active matrix displays using organic light emitting diodes. The circuitry includes a driver to drive an electro-optic display element in accordance with a drive voltage, a photosensitive device optic... | 07/03/2007 |
| 7235930 | Decorative tree with coordinated visual and sound effects A decorative tree uses a control circuit to operate multiple light strings and a speaker. Based on different types of music output by the speaker, the control circuit determines the light strings to be properly turned on or off. Therefore, the visual effects generat... | 06/26/2007 |
| 7221338 | Display device The present invention is intended to suppress power consumption of an EL display. In accordance with the brightness of an image to be displayed in a pixel portion, the contrast of the image is determined whether to be inverted or not, and the number of bits of the d... | 05/22/2007 |
| 7176636 | Circuit arrangement for operating a lamp In an electronic ballast circuit equipped with lamp presence detection means that generate a current flowing through one of the lamp electrodes the detection means are periodically switched off. The power dissipated by the lamp presence detection means is thereby re... | 02/13/2007 |
| 7157856 | Apparatus and method for controlling headlight in vehicle and headlight lamp having multifunction structure The present invention relates to a headlight lamp (110) having a multifunction structure in which a lighting angle of a headlight of a vehicle is automatically and manually controlled based on a running speed of a vehicle, a brightness of a headlight of an op... | 01/02/2007 |
| 7120560 | Lamp monitoring and control system and method A system and method for remotely monitoring and/or controlling an apparatus and specifically for remotely monitoring and/or controlling street lamps. The lamp monitoring and control system comprises lamp monitoring and control units, each coupled to a respective lam... | 10/10/2006 |
| 7113893 | Lamp monitoring and control unit and method A unit and method for remotely monitoring and/or controlling an apparatus and specifically for remotely monitoring and/or controlling street lamps. The lamp monitoring and control unit comprises a processing and sensing unit for sensing at least one lamp parameter o... | 09/26/2006 |
| 7113541 | Method for software driven generation of multiple simultaneous high speed pulse width modulated signals Systems and methods can provide, in one aspect, a method for modulating the pulse width of control signals generated on a plurality of separate channels. In one practice, the methods described herein are suitable for execution on a microprocessor or micro controller... | 09/26/2006 |
| 7081720 | Driver circuit and method for driving electroluminescent lamp to emit light at brightness set level A method for driving an electroluminescent lamp to emit light at a brightness set level includes providing a variable bias voltage to the electroluminescent lamp. The variable bias voltage is increased with the duration of the on-time of the electroluminescent lamp.... | 07/25/2006 |
| 7068246 | Light emitting module and method of driving the same, and optical sensor The object of the present invention is to provide a light emitting module which is excellent in visibility and can reduce power consumption. The light emitting module includes a light emitting device containing at least a pixel section 101 and a sensor... | 06/27/2006 |
| 7045968 | Self-commissioning daylight switching system A method of commissioning a switch to control an electric luminaire in an indoor space responsive to signals from a photosensor. A first plurality of sensor signal values is calculated when the photosensor is disposed at a first location within the space. A second p... | 05/16/2006 |
| 7019276 | Distributed dimmable lighting control system and method To reduce energy costs in buildings where there is an input of natural light, a method of maintaining an ambient light intensity in a building area at a predetermined level is proposed. It comprises obtaining an ambient light intensity level for the building area; c... | 03/28/2006 |
| 7009589 | Active matrix type electroluminescence display device An active matrix type electroluminescence display device comprises a plurality of display pixels GS11, GS12, GS13, etc. arranged in a matrix of rows and columns, each display pixel including an EL element, a first thin film transistor in which a... | 03/07/2006 |
| 6995753 | Display device and method of manufacturing the same There is provided a display device capable of automatically controlling a luminance in response to a brightness of a surrounding. The display device has a gamma correction circuit for converting an image signal voltage into a drive voltage for gray scale display and... | 02/07/2006 |
| 6979953 | Auto-operated dip switching mechanism An auto-operated dip switching mechanism includes a strong-light detector, a strong-light signal circuit, and a switching control circuit. The strong-light detector is mounted to a front end of a car to detect light projected from an opposite coming car. The strong-... | 12/27/2005 |
| 6946802 | Electronic module, methods of manufacturing and driving the same, and electronic instrument An electronic module includes an EL section; a first substrate on which the EL section is formed; a second substrate attached to the first substrate; an integrated circuit chip mounted on the second substrate; a plurality of first power supply interconnects formed o... | 09/20/2005 |
| 6943691 | Tamper indicator for a smoke detector The present invention is a tamper indicating kit for use with a smoke detector having a base plate for mounting to a mounting surface such as a ceiling or wall, and the smoke detector also including an openable cover connected to the base plate; the tamper indicatin... | 09/13/2005 |
| 6933685 | Method and apparatus for controlling lighting based on user behavior A lighting controller is disclosed that automatically adjusts a lighting device based on user activity. The disclosed lighting controller processes at least one of audio and video information to identify predefined user events that suggest that a lighting device sho... | 08/23/2005 |
| 6906476 | Power control system for reducing power to lighting systems A power control system is disclosed for controlling the power supplied to a lighting system and limiting power during time of peak demands and the like wherein the lighting system includes a power source and a lighting load connected to the power source. The control... | 06/14/2005 |
| 6841947 | Systems and methods for controlling brightness of an avionics display The present invention provides for systems and methods for dimming a LED matrix functioning as a backlight to an avionics display. A system according to an embodiment of the present invention comprises a processor for receiving inputs of ambient lighting and tempera... | 01/11/2005 |
| 6583573 | Photosensor and control system for dimming lighting fixtures to reduce power consumption A lighting control system provides a desired illumination level at a task location while saving power. Controlled electric light is produced having an intensity responsive to a control signal. The system comprises at least one light fixture and a photosen... | 06/24/2003 |
| 6353291 | Electroluminescent lamp controller Electronic sensing circuits monitor multiple sized EL cells, referred to as a lamp, and compensate for variations in contrast between cells, while maintaining a fixed contrast between the luminance of the cells and the ambient lighting. In one embodiment,... | 03/05/2002 |
| 6344641 | System and method for on-chip calibration of illumination sources for an integrated circuit display An on-chip system and method for calibrating an illumination source includes a photo-detector and intensity sense and control circuitry resident on an integrated circuit. The integrated circuit is illuminated by an illumination source, which impinges upon... | 02/05/2002 |
| 6300721 | Photocontrol arrangement with mechanically held contacts for controlling an outdoor lighting system A photocontrol arrangement for operating an outdoor lighting system includes a stepper relay whose contacts are mechanically held together or apart, and which is electrically energized briefly only during the generation of a pulse, for minimizing electric... | 10/09/2001 |
| 6275163 | Automatic switch dimmer device An occupancy sensor and an automatic dimmer are connected in series with a light source. The detection of motion in the viewing area of the sensor starts the automatic dimmer which moves from its minimum brightness level to its maximum brightness level. O... | 08/14/2001 |
| 6175196 | Photo-sensitive illuminated skate wheel The disclosed safety light (15) is designed to provide automatic operation for safety lights placed on rotating assemblies such as wheels, flying disks, and etc. Safety light (15) comprises a battery (20), acceleration/motion sensor (22), photo sensor (24... | 01/16/2001 |
| 6160352 | Automated switching device with feedback resistance for lighting means An automatic switching device for flourescent light has a light sensing element that reacts to ambient light and a switching unit designed to react to an output signal from the light sensing element and to activate or deactivate the flourescent light. The... | 12/12/2000 |
| 6153985 | LED driving circuitry with light intensity feedback to control output light intensity of an LED An LED indicator system with at least one LED, and driving circuitry for driving the at least one LED. A power supply supplies a drive current to the at least one LED. A photodetector detects a luminous output of the at least one LED and correspondingly o... | 11/28/2000 |
| 6114812 | Remote control unit for incandescent lamp A remote control unit for an incandescent lamp for remotely controlling the incandescent lamp by using a remote controller. The remote control unit includes a remote controller for transmitting a remote control signal for controlling the lamp through the ... | 09/05/2000 |
| 6075324 | Small portable apparatus with EL device producing reduced noise The invention provides a portable apparatus which eliminates noise generated by vibrations of an EL device without adhering a vibration preventing sheet to the apparatus. Microprocessor 3 of the portable apparatus displays characters and a graphic form on... | 06/13/2000 |
| 6060838 | Illumination device An illumination device employs electroluminescent lamps which may be used alone or may cooperate with mask layers to define one or more rows of illuminated indicia which may be easily replaced to provide other types and colors of indicia. A circuit includ... | 05/09/2000 |
| 6016035 | Light assembly, preferably tail light assembly, of a vehicle, preferably a motor vehicle A light assembly for a motor vehicle has at least one light source connected to a circuit, wherein the at least one light source has a light output that is adjustable according to external light conditions in order to prevent blinding of the driver in a f... | 01/18/2000 |
| 6005350 | Electroluminescent driving apparatus with photodetector An EL driving apparatus is composed of a display portion, a photodiode as changing means for changing a reference voltage for controlling an increased voltage based on ambient brightness and a control portion for controlling the timing of discharging base... | 12/21/1999 |
| 5998929 | Control system for automotive vehicle headlamps and other vehicle equipment A control system is provided for controlling the energization of the headlamps on a first automotive vehicle, the headlamps being electrically energizable and each having a high beam state and a low beam state. The system includes means for collecting lig... | 12/07/1999 |
| 5977717 | Logic lighting control system A lighting control system comprises a photosensor (12), a comparative circuit (16) and a logic switching circuit (26). The photosensor (12) produces an output (VP) which is a function of the light intensity level, and the comparative circuit (16) compares... | 11/02/1999 |
