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Class Information
Number: 315/129
Name: Electric lamp and discharge devices: systems > With signal, indicator, or alarm
Description: Systems provided with signaling means, or indicator means, or alarm means operated by some part of the load device or the electrical circuits therefor to indicate some condition in the load device or the circuits therefor.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7602305 |
Feedback circuit for a display sign and method |
Oct. 13, 2009 |
| 7501769 |
Light fixture with a diagnostic ballast |
Mar. 10, 2009 |
| 7492103 |
Energy saving lamp with sensor |
Feb. 17, 2009 |
| 7489089 |
Color control system for color changing lights |
Feb. 10, 2009 |
| 7459857 |
Bicycle lighting system |
Dec. 2, 2008 |
| 7443101 |
Intelligent electrical switching device including a touch sensor switch |
Oct. 28, 2008 |
| 7425798 |
Intelligent light degradation sensing LED traffic signal |
Sep. 16, 2008 |
| 7414540 |
Computer power indicator circuit |
Aug. 19, 2008 |
| 7411358 |
Inverter circuit, backlight assembly, and liquid crystal display with backlight assembly |
Aug. 12, 2008 |
| 7394203 |
Method and system for open lamp protection |
Jul. 1, 2008 |
| 7391164 |
Visual notification methods for candy-bar type cellphones |
Jun. 24, 2008 |
| 7382454 |
System and method for optically assessing lamp condition |
Jun. 3, 2008 |
| 7358685 |
DC-DC converter having protective function of over-voltage and over-current and led driving circuit using the same |
Apr. 15, 2008 |
| 7345423 |
Assembly of a fluorescent lamp and an extension means |
Mar. 18, 2008 |
| 7329995 |
Serial lamp set having security warning functions |
Feb. 12, 2008 |
| 7265494 |
Intelligent user interface with touch sensor technology |
Sep. 4, 2007 |
| 7245224 |
Methods and systems for diagnosing projection device failure |
Jul. 17, 2007 |
| 7239093 |
System and method for controlling luminance of an LED lamp |
Jul. 3, 2007 |
| 7238326 |
Germicidal treatment system with status indicator |
Jul. 3, 2007 |
| 7190121 |
Systems and methods to control light-emitting diodes |
Mar. 13, 2007 |
| 7122971 |
Driver circuit for driving a plurality of DC lamp strings |
Oct. 17, 2006 |
| 7120560 |
Lamp monitoring and control system and method |
Oct. 10, 2006 |
| 7119459 |
Intelligent switch for connecting power to a load |
Oct. 10, 2006 |
| 7113893 |
Lamp monitoring and control unit and method |
Sep. 26, 2006 |
| 7081719 |
Computer power supply with a display function |
Jul. 25, 2006 |
| 7067994 |
Electronic ballast with overvoltage monitoring |
Jun. 27, 2006 |
| 7023353 |
Warning device status circuit including a status output device |
Apr. 4, 2006 |
| 6969959 |
Electronic control systems and methods |
Nov. 29, 2005 |
| 6967445 |
Circuit continuity and function monitor |
Nov. 22, 2005 |
| 6917164 |
Light signaling device related to the operating state of a system |
Jul. 12, 2005 |
| 6909248 |
Deuterium arc lamp assembly with an elapsed time indicator system and a method thereof |
Jun. 21, 2005 |
| 6889174 |
Remotely controllable distributed device monitoring unit and system |
May. 3, 2005 |
| 6885297 |
Process for management of a light signaling device, and a device using this process, particularly for avionics |
Apr. 26, 2005 |
| 6850010 |
Microwave powered lamp with reliable detection of burned out light bulbs |
Feb. 1, 2005 |
| 6803727 |
Light system for use especially by operating theatre |
Oct. 12, 2004 |
| 6791275 |
Low pressure gas discharge lamp ballast with on-off indicator |
Sep. 14, 2004 |
| 6791276 |
Gradually lighting/dimming wireless transmission indicator lamp |
Sep. 14, 2004 |
| 6774768 |
System and method for cycling a metal-halide lamp on and off at designated intervals to reduce risk of arc tube rupture |
Aug. 10, 2004 |
| 6768269 |
Plasma process chamber monitoring method and system used therefor |
Jul. 27, 2004 |
| 6762563 |
Module for powering and monitoring light-emitting diodes |
Jul. 13, 2004 |
| 6731079 |
Industrial lighting control system and method |
May. 4, 2004 |
| 6720883 |
Warning device status circuit including a status output device |
Apr. 13, 2004 |
| 6664790 |
Automated diagnostic tester for HID lamp luminaires |
Dec. 16, 2003 |
| 6611114 |
Control circuit assembly for fountain display apparatus |
Aug. 26, 2003 |
| 6603342 |
Light emitting element driver with low supply voltage |
Aug. 5, 2003 |
| 6534988 |
System for testing the presence of an ignitor pulse within a high intensity discharge luminaire |
Mar. 18, 2003 |
| 6518707 |
Voltage detector for series light circuit |
Feb. 11, 2003 |
| 6498436 |
Method for operating a lamp, particularly for medical applications, and a lamp having a discharge lamp |
Dec. 24, 2002 |
| 6448715 |
Projection display apparatus |
Sep. 10, 2002 |
| 6448716 |
Solid state light with self diagnostics and predictive failure analysis mechanisms |
Sep. 10, 2002 |
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