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Class Information
Number: 315/313
Name: Electric lamp and discharge devices: systems > Plural load device systems > Electric switch in the supply circuit
Description: Systems having an electrical circuit maker and breaker in the current supply circuit to the load device for selectively controlling the supply of current to the load devices.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7551153 |
Combined exponential/linear RGB LED I-sink digital-to-analog converter |
Jun. 23, 2009 |
| 7550931 |
Controlled lighting methods and apparatus |
Jun. 23, 2009 |
| 7518525 |
Light emitting diode and display device using the same |
Apr. 14, 2009 |
| 7456588 |
Arrangement and method for providing power line communication from an AC power source to a circuit for powering a load, and electronic ballasts therefor |
Nov. 25, 2008 |
| 7402961 |
Circuit for illuminating multiple light emitting devices |
Jul. 22, 2008 |
| 7378630 |
Light emitting unit and imaging apparatus |
May. 27, 2008 |
| 7362059 |
Driving unit of fluorescent lamp and method for driving the same |
Apr. 22, 2008 |
| 7327098 |
LED controller and control method thereof |
Feb. 5, 2008 |
| 7298090 |
Light assembly having light changing device |
Nov. 20, 2007 |
| 7282863 |
Auxiliary quartz lamp lighting system for electronic high intensity discharge lamp ballasts |
Oct. 16, 2007 |
| 7253570 |
Automatic momentary secondary light source assembly |
Aug. 7, 2007 |
| 7250732 |
High pressure discharge lamp control system and method |
Jul. 31, 2007 |
| 7211969 |
Power driver circuit of display panel |
May. 1, 2007 |
| 7202613 |
Controlled lighting methods and apparatus |
Apr. 10, 2007 |
| 7165876 |
Illuminating device utilizing light-emitting diode array |
Jan. 23, 2007 |
| 7122976 |
Light management system device and method |
Oct. 17, 2006 |
| 7038402 |
Combined exponential/linear RGB LED I-sink digital-to-analog converter |
May. 2, 2006 |
| 6949885 |
Discharge lamp lighting device and lighting apparatus |
Sep. 27, 2005 |
| 6867558 |
Method and apparatus for networked lighting system control |
Mar. 15, 2005 |
| 6822626 |
Design, fabrication, testing, and conditioning of micro-components for use in a light-emitting panel |
Nov. 23, 2004 |
| 6819060 |
Power line monitor and interrupt arrangement for averting premature lamp mortality in low voltage conditions |
Nov. 16, 2004 |
| 6801003 |
Systems and methods for synchronizing lighting effects |
Oct. 5, 2004 |
| 6795044 |
Plasma display panel and driving method thereof |
Sep. 21, 2004 |
| 6768273 |
Dynamo control circuit for a bicycle |
Jul. 27, 2004 |
| 6278420 |
Plasma display panel and driving method thereof |
Aug. 21, 2001 |
| 6181074 |
Operating circuit for discharge lamps with switchable operating states |
Jan. 30, 2001 |
| 6107758 |
Operation circuit in particular for discharge lamps using discrete time definition values to control operation state switching |
Aug. 22, 2000 |
| 6072286 |
Auxiliary lighting control circuit and method for a HID lamp lighting system |
Jun. 6, 2000 |
| 6020659 |
Ramping electronic switch system |
Feb. 1, 2000 |
| 5896010 |
System for controlling lighting in an illuminating indicating device |
Apr. 20, 1999 |
| 5811939 |
Bi-level control system for lighting and other applications |
Sep. 22, 1998 |
| 5808423 |
Lighting control for reducing energy consumption |
Sep. 15, 1998 |
| 5783911 |
Circuit arrangement for operating electric lamps, and operating method for electric lamps |
Jul. 21, 1998 |
| 5610448 |
Universal switching device and method for lighting applications |
Mar. 11, 1997 |
| 5436535 |
Multi-color display unit |
Jul. 25, 1995 |
| 5374876 |
Portable multi-color signal light with selectively switchable LED and incandescent illumination |
Dec. 20, 1994 |
| 5361019 |
Lamp dimming device |
Nov. 1, 1994 |
| 5352957 |
Appliance control system with programmable receivers |
Oct. 4, 1994 |
| 5334912 |
Ground fault detector and associated logic for an electronic ballast |
Aug. 2, 1994 |
| 5300863 |
Auxiliary lighting circuit for a gaseous discharge lamp |
Apr. 5, 1994 |
| 5256948 |
Tri-color flasher for strings of dual polarity light emitting diodes |
Oct. 26, 1993 |
| 5254910 |
Color-differential type light display device |
Oct. 19, 1993 |
| 5229690 |
Apparatus for operating discharge lamps utilizing a capacitor and charging circuit |
Jul. 20, 1993 |
| 5192895 |
Synchronously-controlled light string |
Mar. 9, 1993 |
| 5173642 |
Rare gas discharge fluorescent lamp device |
Dec. 22, 1992 |
| 5003233 |
Radio frequency powered large scale display |
Mar. 26, 1991 |
| 4996463 |
Auxiliary lighting system for high intensity discharge lamp |
Feb. 26, 1991 |
| 4985662 |
Low voltage lamp switcher circuit |
Jan. 15, 1991 |
| 4963795 |
Step-controllable electronic ballast |
Oct. 16, 1990 |
| 4896079 |
Bi-level switch |
Jan. 23, 1990 |
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