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Class Information
Number: 340/506
Name: Communications: electrical > Condition responsive indicating system > With particular system function (e.g., temperature compensation, calibration) > Alarm system supervision
Description: Subject matter where there is continuous monitoring of the operativeness of the alarm circuits in the system.


Sub-classes under this class:

Class Number Class Name Patents
340/510 Bridge or potential divider 68
340/513 Diode 38
340/507 Fail-safe 216
340/509 Plural or diverse current sources 52
340/512 Pulse 69
340/508 Redundant (e.g., added circuit or loop) 181
340/511 Threshold or window (e.g., of analog electrical level) 364


Patents under this class:
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Patent Number Title Of Patent Date Issued
6577233 Fire alarm system and terminal equipment in the same Jun. 10, 2003
6573839 Aircraft catastrophic security system Jun. 3, 2003
6570496 Networks and circuits for alarm system operations May. 27, 2003
6567001 Fire control panel monitoring for degradation of wiring integrity during alarm state May. 20, 2003
6559759 Duplex communication apparatus for motor vehicle May. 6, 2003
6559760 Platform monitoring system May. 6, 2003
6559765 Integrated security system comprising a plurality of remote-controllable security devices and associated control units May. 6, 2003
6559766 In-home surveillance system May. 6, 2003
6559769 Early warning real-time security system May. 6, 2003
6549127 Switchgear cabinet monitoring arrangement Apr. 15, 2003
6549128 Method, system, and apparatus for remotely provisioning network elements to eliminate false alarms Apr. 15, 2003
6549129 System and method for protecting a digital information appliance from environmental influences Apr. 15, 2003
6545601 Ground based security surveillance system for aircraft and other commercial vehicles Apr. 8, 2003
6545602 Fire alarm system Apr. 8, 2003
6542075 System and method for providing configurable security monitoring utilizing an integrated information portal Apr. 1, 2003
6535110 Device adapter for automation system Mar. 18, 2003
6535118 Priority controlled network Mar. 18, 2003
6535120 Programmable universal locating system Mar. 18, 2003
6535121 Fire department station zoned alerting control system Mar. 18, 2003
6535122 Method and apparatus for extending processing mask/filtering, and displaying alarm information for a hierarchically categorizing alarm monitoring system Mar. 18, 2003
6535123 Electronic message delivery system Mar. 18, 2003
6529128 Smart wireless fire site notifying device Mar. 4, 2003
6525658 Method and device for event detection utilizing data from a multiplicity of sensor sources Feb. 25, 2003
6522247 Apparatus monitoring system and apparatus monitoring method Feb. 18, 2003
6518878 Warning system Feb. 11, 2003
6518879 Apparatus and method for monitoring line disconnection and a fire, and a fire alarm system having the same Feb. 11, 2003
6509830 Systems and methods for providing customizable geo-location tracking services Jan. 21, 2003
6507277 Danger signalling system Jan. 14, 2003
6501377 Surveillance system and network system Dec. 31, 2002
6496110 Rapid fire emergency response for minimizing human casualties within a facility Dec. 17, 2002
6492901 Alarm management system Dec. 10, 2002
6492902 Ultrasonic obstacle detector Dec. 10, 2002
6486793 Wireless magnetic lock control system Nov. 26, 2002
6483432 Intrusion alarm and detection system Nov. 19, 2002
6480109 Alarm lockout apparatus Nov. 12, 2002
6476716 Temperature-controlled variable resistor Nov. 5, 2002
6472980 Device with built-in signal discrimination and output synchronization circuits Oct. 29, 2002
6469623 Smoke detector maintenance and verification tool Oct. 22, 2002
6462652 Distributed verification, confirmation or delay time system and method Oct. 8, 2002
6462653 System and method of group definition Oct. 8, 2002
6462654 Electronic message delivery system utilizable in the monitoring of remote equipment and method of same Oct. 8, 2002
6459369 Tire deflation detection system with feedback component Oct. 1, 2002
6459370 Method and apparatus for determining proper installation of alarm devices Oct. 1, 2002
6452490 Home/commercial security monitoring system Sep. 17, 2002
6452491 Amplifier and heat sink configuration Sep. 17, 2002
6453266 Peak detecting shock gauge and damage diagnostic for mobile and handheld computers Sep. 17, 2002
6445291 Adaptive console for augmenting wireless capability in security systems Sep. 3, 2002
6437691 Electronic message delivery system utilizable in the monitoring of remote equipment and method of same Aug. 20, 2002
6429774 EVALUATING UNIT FOR A DEVICE FOR DETECTING OBJECTS, IN PARTICULAR FOR MONITORING THE INTERIOR OF A MOTOR VEHICLE, AS WELL AS A DEVICE FOR DETECTING OBJECTS HAVING SUCH AN EVALUATING UNIT AND A Aug. 6, 2002
6426697 Alarm system having improved communication Jul. 30, 2002

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