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Class Information
Number: 340/333
Name: Communications: electrical > Systems > With specific power supply (e.g., power substitution)
Description: Subject matter having significantly recited or significant power supply systems.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7573396 |
Air craft emergency lighting system |
Aug. 11, 2009 |
| 7495577 |
Multipurpose radio |
Feb. 24, 2009 |
| 7397370 |
Monitoring an environment using a RFID assembly |
Jul. 8, 2008 |
| 7327219 |
Enhanced alarm system for monitoring of patients |
Feb. 5, 2008 |
| 7250875 |
Traffic signal transfer switch |
Jul. 31, 2007 |
| 7233242 |
Arrangement and method for setting a transmit power |
Jun. 19, 2007 |
| 7224286 |
Solar panel having visual indicator |
May. 29, 2007 |
| 7220010 |
Emergency light |
May. 22, 2007 |
| 7212102 |
Device integrated battery backup with power source monitoring and manipulation and public safety communications infrastructure incorporating the same |
May. 1, 2007 |
| 7212110 |
Implantable device and system and method for wireless communication |
May. 1, 2007 |
| 7034677 |
Non-specific sensor array detectors |
Apr. 25, 2006 |
| 6972688 |
Power supply with modular integrated networking |
Dec. 6, 2005 |
| 6970072 |
Home automation module having externally powered communications port |
Nov. 29, 2005 |
| 6956463 |
Method and apparatus for providing both power and communication over two wires between multiple low voltage AC devices |
Oct. 18, 2005 |
| 6943463 |
System and method of testing connectivity between a main power supply and a standby power supply |
Sep. 13, 2005 |
| 6931287 |
Remote console |
Aug. 16, 2005 |
| 6917298 |
Solar system alarm backup unit |
Jul. 12, 2005 |
| 6904373 |
USB-controllable power supply |
Jun. 7, 2005 |
| 6882274 |
Energy conserving satellite tracking tag |
Apr. 19, 2005 |
| 6844823 |
Method and apparatus for providing power to a visual messaging system for high-speed networks |
Jan. 18, 2005 |
| 6819226 |
Systems and methods for energy storage in land-based telemetry applications |
Nov. 16, 2004 |
| 6813371 |
On-vehicle camera calibration device |
Nov. 2, 2004 |
| 6777829 |
Rectifier utilizing a grounded antenna |
Aug. 17, 2004 |
| 6775545 |
Wireless, ground link-based aircraft data communication system with roaming feature |
Aug. 10, 2004 |
| 6753762 |
Signalling beacon |
Jun. 22, 2004 |
| 6605900 |
Rechargeable emergency lamp tube |
Aug. 12, 2003 |
| 6496103 |
Device, system and method for secure |
Dec. 17, 2002 |
| 6466126 |
Portable data device efficiently utilizing its available power and method thereof |
Oct. 15, 2002 |
| 6437685 |
Cordless power transmission system, power transmission terminal and electrical appliance |
Aug. 20, 2002 |
| 6377172 |
Specific location public alert receiver |
Apr. 23, 2002 |
| 6329907 |
Emergency power system for traffic control signals |
Dec. 11, 2001 |
| 6329906 |
Power transfer apparatus for concurrently transmitting data and power over data wires |
Dec. 11, 2001 |
| 6313549 |
Emergency evacuation system |
Nov. 6, 2001 |
| 6198384 |
System power supply control for interface circuit |
Mar. 6, 2001 |
| 6140911 |
Power transfer apparatus for concurrently transmitting data and power over data wires |
Oct. 31, 2000 |
| 6094130 |
Emergency power station for traffic control signals |
Jul. 25, 2000 |
| 6011465 |
Backup arrangement for alarm system |
Jan. 4, 2000 |
| 5973617 |
Control circuit with adjustable standby oscillator |
Oct. 26, 1999 |
| 5966069 |
Exit sign self-testing system |
Oct. 12, 1999 |
| 5948085 |
Bus voltage detection and protection |
Sep. 7, 1999 |
| 5889465 |
Power service unit with automated dialer and other enhancements |
Mar. 30, 1999 |
| 5883577 |
Multi station smoke detectors |
Mar. 16, 1999 |
| 5859873 |
Method and arrangement for non-contact transmission of measured values |
Jan. 12, 1999 |
| 5790019 |
Emergency alarm system |
Aug. 4, 1998 |
| 5748074 |
Electronic door chime |
May. 5, 1998 |
| 5654691 |
Auxiliary backup device of burglary alarm system |
Aug. 5, 1997 |
| 5621394 |
Smoke alarm monitoring and testing system and method |
Apr. 15, 1997 |
| 5574423 |
Self-diagnostic circuit for emergency lamphead |
Nov. 12, 1996 |
| 5559492 |
Synchronized strobe alarm system |
Sep. 24, 1996 |
| 5559626 |
Energy resource sharing method and apparatus |
Sep. 24, 1996 |
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