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Browse by Category: Main > Electrical & Energy
Class Information
Number: 250/214AL
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controlled circuit > Special photocell or electron tube circuits > Ambient light responsive
Description:


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
7453057 Vehicle rearview mirror system having a variable reflectance control Nov. 18, 2008
7446303 Ambient light sensing using a color sensor Nov. 4, 2008
7408145 Light sensing instrument with modulated polychromatic source Aug. 5, 2008
7405387 System and method for attenuating the effect of ambient light on an optical sensor Jul. 29, 2008
7394541 Ambient light analysis methods, imaging devices, and articles of manufacture Jul. 1, 2008
7364329 Adaptor with gimbal mounted sensor Apr. 29, 2008
7351947 System and method for ambient light sensor testing for an information handling system display Apr. 1, 2008
7345270 Photocontrol with radio-controlled timer and a decoder Mar. 18, 2008
7323672 Light sensor structure with dark current compensation Jan. 29, 2008
7309851 Apparatus and method for adjusting brightness via controlling backlight Dec. 18, 2007
7297929 Light sensor and processor incorporating historical readings Nov. 20, 2007
7271378 Ambient light detection circuit with control circuit for integration period signal Sep. 18, 2007
7262406 Accessory mounting system for mounting a plurality of accessories to the windshield of a vehicle Aug. 28, 2007
7256385 Display device with combined light guide Aug. 14, 2007
7232987 Instrument and method to measure available light energy for photosynthesis Jun. 19, 2007
7227459 Vehicle imaging system Jun. 5, 2007
7218860 Optical transceiver module with ambient light circuitry May. 15, 2007
7202458 Display and control method thereof Apr. 10, 2007
7193201 Method for measuring external light to control protection means against sunlight or illumination Mar. 20, 2007
7149026 Sensor unit for automatically switching of lighting devices and coupling medium for a sensor unit Dec. 12, 2006
7133079 Circuit comprising a combined signal and environmental light sensor Nov. 7, 2006
7109465 System and method for converting ambient light energy into a digitized electrical output signal for controlling display and keypad illumination on a battery powered system Sep. 19, 2006
7071456 Camera module with ambient light detection Jul. 4, 2006
7064310 Light-responsive vehicle control such as an electro-optic rearview mirror system that is adaptive to vehicle configuration having a sensitivity selection Jun. 20, 2006
7049575 System for sensing ambient light having ambient stability probability May. 23, 2006
7041965 Vehicle interior mirror system including a rain sensor May. 9, 2006
7026597 OLED display with integrated elongated photosensor Apr. 11, 2006
7022961 Optical indicator element Apr. 4, 2006
7019276 Distributed dimmable lighting control system and method Mar. 28, 2006
6979811 Light sensing film and light sensor circuit using the same Dec. 27, 2005
6952002 Image processing apparatus Oct. 4, 2005
6943333 Light arrangement for vision system including a light controller with an external device Sep. 13, 2005
6933486 Illumination management system Aug. 23, 2005
6900594 Methods and a device for automatically switching on or off the illumination of a vehicle May. 31, 2005
6833539 Accessory utilizing a light emitter Dec. 21, 2004
6802631 Photosensitive detection unit, in particular for automatic connection of lighting equipment Oct. 12, 2004
6794632 Soil compaction device having a light detector Sep. 21, 2004
6791073 Optical receiver having baffle including a plurality of apertures Sep. 14, 2004
6774988 Light source detection and categorization system for automatic vehicle exterior light control and method of manufacturing Aug. 10, 2004
6774356 Vehicle interior mirror system including a housing containing electrical components/accessories Aug. 10, 2004
6765555 Passive optical mouse using image sensor with optional dual mode capability Jul. 20, 2004
6759643 Automatic sunshade curtain with sustained state at transition Jul. 6, 2004
6756912 Information display system for a vehicle Jun. 29, 2004
6737630 Low EMI multiplexed dual display May. 18, 2004
6727489 Automatic image-quality adjustment system Apr. 27, 2004
6693271 Obstacle detection sensor using synchronous detection Feb. 17, 2004
6670597 Illumination sensor with spectral sensitivity corresponding to human luminosity characteristic Dec. 30, 2003
6664858 Adjustable peaking capacitor in high-speed optical fiber communication receiver Dec. 16, 2003
6617560 Lighting control circuit including LED for detecting exposure to radiation Sep. 9, 2003
6603104 Apparatus for maintaining average screen light level for ferroelectric liquid crystal display Aug. 5, 2003

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