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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:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6040770 |
Communication path integrity supervision in a network system for automatic alarm data communication |
Mar. 21, 2000 |
| 6031456 |
Detector |
Feb. 29, 2000 |
| 6011464 |
Method for analyzing the signals of a danger alarm system and danger alarm system for implementing said method |
Jan. 4, 2000 |
| 6011465 |
Backup arrangement for alarm system |
Jan. 4, 2000 |
| 5990789 |
System and method for preventing smoke and fire damage to people and equipment in a clean room area from a fire |
Nov. 23, 1999 |
| 5977871 |
Alarm reporting system |
Nov. 2, 1999 |
| 5973594 |
Multiple optical designs for a multifunction sensor |
Oct. 26, 1999 |
| 5969600 |
Dangerous condition warning device incorporating a time-limited hush mode of operation to defeat an audible low battery warning signal |
Oct. 19, 1999 |
| 5969604 |
System and method of adjusting smoothing |
Oct. 19, 1999 |
| 5966069 |
Exit sign self-testing system |
Oct. 12, 1999 |
| 5959528 |
Auto synchronous output module and system |
Sep. 28, 1999 |
| 5955946 |
Alarm/facility management unit |
Sep. 21, 1999 |
| 5950150 |
Fire/life safety system operation criteria compliance verification system and method |
Sep. 7, 1999 |
| 5939980 |
Telecommunity alarm system with a plurality of security surveillance modems |
Aug. 17, 1999 |
| 5933077 |
Apparatus and method for detecting undesirable connections in a system |
Aug. 3, 1999 |
| 5933078 |
Multi-station dangerous condition alarm system incorporating alarm and chirp origination feature |
Aug. 3, 1999 |
| 5926100 |
Alarm alerting method and apparatus |
Jul. 20, 1999 |
| 5923247 |
Fault monitoring |
Jul. 13, 1999 |
| 5923731 |
Telephone monitoring and alarm device |
Jul. 13, 1999 |
| 5920257 |
System and method for isolating an outage within a communications network |
Jul. 6, 1999 |
| 5920258 |
Alarm signal processing circuit |
Jul. 6, 1999 |
| 5917409 |
Process and system for reducing motion-type false alarm of security alarm system |
Jun. 29, 1999 |
| 5914655 |
Self-compensating intruder detector system |
Jun. 22, 1999 |
| 5914674 |
Detector and alarm apparatus and system |
Jun. 22, 1999 |
| 5912618 |
System for detecting the presence of an electrically conductive object, particularly an integrated circuit on a chip card |
Jun. 15, 1999 |
| 5909175 |
Connection switching circuit for ring system |
Jun. 1, 1999 |
| 5907279 |
Initialization of a wireless security system |
May. 25, 1999 |
| 5898368 |
Test indicator control circuit for security alarm device |
Apr. 27, 1999 |
| 5894266 |
Method and apparatus for remote monitoring |
Apr. 13, 1999 |
| 5892440 |
Alarm significance mapping |
Apr. 6, 1999 |
| 5892442 |
Two-way pager alarm system |
Apr. 6, 1999 |
| 5883573 |
Message generation supervision system |
Mar. 16, 1999 |
| 5877678 |
Annunciator control circuit |
Mar. 2, 1999 |
| 5877683 |
Home alarm system |
Mar. 2, 1999 |
| 5867095 |
Module tamper detection circuitry |
Feb. 2, 1999 |
| 5867097 |
Method and apparatus for alarm signal processing |
Feb. 2, 1999 |
| 5864286 |
Distributed intelligence alarm system having a two- tier monitoring process for detecting alarm conditions |
Jan. 26, 1999 |
| 5864287 |
Alarms for monitoring operation of sensors in a fire-suppression system |
Jan. 26, 1999 |
| 5861804 |
Computer controlled security and surveillance system |
Jan. 19, 1999 |
| 5854994 |
Vibration monitor and transmission system |
Dec. 29, 1998 |
| 5850178 |
Alarm system having synchronizing pulse generator and synchronizing pulse missing detector |
Dec. 15, 1998 |
| 5850179 |
Latency counter for scanning timers |
Dec. 15, 1998 |
| 5831524 |
System and method for dynamic adjustment of filtering in an alarm system |
Nov. 3, 1998 |
| 5831529 |
Security system implemented with an anti-masking dector using light guides |
Nov. 3, 1998 |
| 5828300 |
Alarm system with supervision controlled receiver parameter modification |
Oct. 27, 1998 |
| 5821861 |
Monitoring wall temperatures of reactor vessels |
Oct. 13, 1998 |
| 5818334 |
Addressable devices with interface modules having electrically readable addresses |
Oct. 6, 1998 |
| 5815075 |
Fire dector including a non-volatile memory |
Sep. 29, 1998 |
| 5815417 |
Method for acquiring and presenting data relevant to an emergency incident |
Sep. 29, 1998 |
| 5812054 |
Device for the verification of an alarm |
Sep. 22, 1998 |
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