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Class Information
Number: 340/661
Name: Communications: electrical > Condition responsive indicating system > Specific condition > Electrical characteristic > Voltage > Comparison
Description: Subject matter where the voltage is monitored by comparison with another voltage or a reference.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7602305 |
Feedback circuit for a display sign and method |
Oct. 13, 2009 |
| 7557724 |
Device for detecting a fault current in an electronic apparatus |
Jul. 7, 2009 |
| 7551098 |
Point of sale terminal having pulsed current tamper control sensing |
Jun. 23, 2009 |
| 7535374 |
Security cover |
May. 19, 2009 |
| 7528734 |
System and method for automatically detecting power supply voltage |
May. 5, 2009 |
| 7528728 |
Circuits for RFID tags with multiple non-independently driven RF ports |
May. 5, 2009 |
| 7509191 |
Frame deformation control apparatus |
Mar. 24, 2009 |
| 7468674 |
Voltage sensing hand tool |
Dec. 23, 2008 |
| 7461303 |
Monitoring VRM-induced memory errors |
Dec. 2, 2008 |
| 7443310 |
Remote sensor network system with redundancy |
Oct. 28, 2008 |
| 7439874 |
Load status indicator |
Oct. 21, 2008 |
| 7436314 |
Monitor and circuit arrangement for voltage regulator |
Oct. 14, 2008 |
| 7423546 |
Device, system and method for monitoring a household electric appliance |
Sep. 9, 2008 |
| 7423539 |
RFID tags combining signals received from multiple RF ports |
Sep. 9, 2008 |
| 7411514 |
Failure detecting apparatus |
Aug. 12, 2008 |
| 7355520 |
Motor diagnostic indicator |
Apr. 8, 2008 |
| 7352287 |
Pneumatic controller |
Apr. 1, 2008 |
| 7333022 |
Safety monitoring mechanism of a wafer fabrication platform |
Feb. 19, 2008 |
| 7327275 |
Bathing system controller having abnormal operational condition identification capabilities |
Feb. 5, 2008 |
| 7315255 |
Load status indicator |
Jan. 1, 2008 |
| 7298283 |
Device for detecting line-disconnection in stepping motor driver |
Nov. 20, 2007 |
| 7295130 |
Voltage sensing hand tool |
Nov. 13, 2007 |
| 7269764 |
Monitoring VRM-induced memory errors |
Sep. 11, 2007 |
| 7265679 |
Apparatus and method for indicating onset of high-voltage at an output locus of a signal converter device |
Sep. 4, 2007 |
| 7256683 |
Circuit monitoring device |
Aug. 14, 2007 |
| 7215251 |
Method and apparatus for controlled persistent ID flag for RFID applications |
May. 8, 2007 |
| 7183934 |
Diagnostic circuit |
Feb. 27, 2007 |
| 7154405 |
Use indicator |
Dec. 26, 2006 |
| 7119701 |
Techniques for detection of an active connection to a network |
Oct. 10, 2006 |
| 7116240 |
Method and apparatus for controlled persistent ID flag for RFID applications |
Oct. 3, 2006 |
| 7116239 |
Current sense components failure detection in a multi-phase power system |
Oct. 3, 2006 |
| 7110226 |
Regulator protection circuit and power supply apparatus incorporating it |
Sep. 19, 2006 |
| 7098799 |
Unit for sensing physical quantity |
Aug. 29, 2006 |
| 7075446 |
Method and apparatus for monitoring motor rotation speed |
Jul. 11, 2006 |
| 7075448 |
Method and circuit arrangement for offset correction of a measurement bridge |
Jul. 11, 2006 |
| 7030623 |
Electrical short tracing apparatus and method |
Apr. 18, 2006 |
| 7023353 |
Warning device status circuit including a status output device |
Apr. 4, 2006 |
| 7015821 |
EEPROM memory matrix and method for safeguarding an EEPROM memory matrix |
Mar. 21, 2006 |
| 7012537 |
Apparatus and method for determining voltage using optical observation |
Mar. 14, 2006 |
| 7002352 |
Reference voltage diagnostic suitable for use in an automobile controller and method therefor |
Feb. 21, 2006 |
| 6980116 |
Method for failure detection in a radio frequency device |
Dec. 27, 2005 |
| 6954149 |
Method for protecting a security module and arrangement for the implementation of the method |
Oct. 11, 2005 |
| 6940413 |
Method and apparatus for monitoring operation of electrical household appliances |
Sep. 6, 2005 |
| 6922151 |
Battery remaining amount warning circuit |
Jul. 26, 2005 |
| 6906617 |
Intelligent appliance home network |
Jun. 14, 2005 |
| 6900625 |
Voltage converter system and method having a stable output voltage |
May. 31, 2005 |
| 6897784 |
Water monitoring system and water monitoring method for high voltage cables |
May. 24, 2005 |
| 6897783 |
Electrical injury protection system using radio frequency transmission |
May. 24, 2005 |
| 6897782 |
Thermal monitoring of an electric load element |
May. 24, 2005 |
| 6895022 |
Distributed architecture communication system having bus voltage compensation |
May. 17, 2005 |
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