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Class Information
Number: 315/324
Name: Electric lamp and discharge devices: systems > Plural load device systems > Plural discharge device loads
Description: Systems having two or more discharge device loads in the system.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7592757 |
System and method for dimming one or more light source |
Sep. 22, 2009 |
| 7570235 |
Communication diode driver circuit |
Aug. 4, 2009 |
| 7550933 |
Offline control circuit of LED driver to control the maximum voltage and the maximum current of LEDs |
Jun. 23, 2009 |
| 7535180 |
Semiconductor light emitting circuits including light emitting diodes and four layer semiconductor shunt devices |
May. 19, 2009 |
| 7528556 |
Light regulation device |
May. 5, 2009 |
| 7525255 |
Split phase inverters for CCFL backlight system |
Apr. 28, 2009 |
| 7525258 |
Current balancing techniques for fluorescent lamps |
Apr. 28, 2009 |
| 7498754 |
Architecture for driving multiple loads at constant current |
Mar. 3, 2009 |
| 7489091 |
Backlight unit for liquid crystal display device |
Feb. 10, 2009 |
| 7482761 |
Light emitting diode lamp assembly |
Jan. 27, 2009 |
| 7479745 |
LCD back light panel lamp connecting structure |
Jan. 20, 2009 |
| 7477020 |
Electronic ballast having a reduced reverse voltage at the start |
Jan. 13, 2009 |
| 7477023 |
Inverter circuit and backlight assembly having the same |
Jan. 13, 2009 |
| 7459865 |
Cold cathode tube lighting device, tube current detecting circuit used in cold cathode tube lighting device, tube current controlling method and integrated circuit |
Dec. 2, 2008 |
| 7458490 |
Article carrier assembly with removable stowable cross-rails and latching mechanism therefor |
Dec. 2, 2008 |
| 7459863 |
Transformer and multi-lamp driving circuit using the same |
Dec. 2, 2008 |
| 7449843 |
Transformer for driving multi-lamp and backlight module thereof |
Nov. 11, 2008 |
| 7439945 |
Light emitting diode driver circuit with high-speed pulse width modulated current control |
Oct. 21, 2008 |
| 7436133 |
LCD back light panel lamp connecting structure |
Oct. 14, 2008 |
| 7429829 |
Discharge lamp lighting circuit with an open protection circuit |
Sep. 30, 2008 |
| 7394213 |
Multi-lamp driver |
Jul. 1, 2008 |
| 7385310 |
Electronic ballasts which can be connected in parallel on the basis of the type of lamp |
Jun. 10, 2008 |
| 7375984 |
Zero voltage zero current switching converter |
May. 20, 2008 |
| 7372055 |
Night vision infrared illuminator |
May. 13, 2008 |
| 7372213 |
Lamp current balancing topologies |
May. 13, 2008 |
| 7352140 |
Master-slave control architecture for inverters |
Apr. 1, 2008 |
| 7321207 |
Inverter apparatus and liquid crystal display including inverter apparatus |
Jan. 22, 2008 |
| 7312588 |
Ballast with frequency-diagnostic lamp fault protection circuit |
Dec. 25, 2007 |
| 7307388 |
Backlight modules and lamp modules in flat panel displays |
Dec. 11, 2007 |
| 7250731 |
Primary side current balancing scheme for multiple CCF lamp operation |
Jul. 31, 2007 |
| 7230392 |
Analog control of light sources |
Jun. 12, 2007 |
| 7202614 |
Electronic ballast for a fluorescent task lamp |
Apr. 10, 2007 |
| 7186003 |
Light-emitting diode based products |
Mar. 6, 2007 |
| 7183722 |
Apparatus and method of driving lamp of liquid crystal display device |
Feb. 27, 2007 |
| 7164240 |
Method and apparatus for driving an external electrode fluorescent lamp |
Jan. 16, 2007 |
| 7154229 |
Electronic ballast with load shed circuit |
Dec. 26, 2006 |
| 7154232 |
Ballast control IC with multi-function feedback sense |
Dec. 26, 2006 |
| 7131742 |
Backlight unit for liquid crystal display device |
Nov. 7, 2006 |
| 7106009 |
Duplexing protection apparatus and operation method thereof |
Sep. 12, 2006 |
| 7064496 |
State detection device |
Jun. 20, 2006 |
| 7049769 |
Circuit arrangement and method for an illumination device having settable color and brightness |
May. 23, 2006 |
| 7038397 |
Cold cathode fluorescent lamp driver circuit |
May. 2, 2006 |
| 6960892 |
Variable output single constant source light fixture |
Nov. 1, 2005 |
| 6943506 |
Inverter apparatus and liquid crystal display including inverter apparatus |
Sep. 13, 2005 |
| 6865428 |
Method and apparatus for providing distributed control of a home automation system |
Mar. 8, 2005 |
| 6856101 |
Method and apparatus for switching of parallel capacitors in an HID bi-level dimming system using voltage suppression |
Feb. 15, 2005 |
| 6834208 |
Method and apparatus for providing distributed control of a home automation and control system |
Dec. 21, 2004 |
| 6815842 |
Sequential control circuit |
Nov. 9, 2004 |
| 6794828 |
Driving serially connected high intensity discharge lamps |
Sep. 21, 2004 |
| 6791284 |
Intelligent outdoor lighting control system |
Sep. 14, 2004 |
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