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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 |
| 5640141 |
Surveillance and alarm device for room spaces |
Jun. 17, 1997 |
| 5640142 |
Alarm system testing circuit |
Jun. 17, 1997 |
| 5638046 |
Security system |
Jun. 10, 1997 |
| 5635904 |
Fire alarm system |
Jun. 3, 1997 |
| 5627514 |
Fire detector and fire receiver |
May. 6, 1997 |
| 5627515 |
Alarm system with multiple cooperating sensors |
May. 6, 1997 |
| 5621383 |
Ring network system capable of detecting an alarm in each node |
Apr. 15, 1997 |
| 5619183 |
Video audio data remote system |
Apr. 8, 1997 |
| 5619184 |
System for monitoring disaster prevention |
Apr. 8, 1997 |
| 5619185 |
Flood light lamp removal alarm |
Apr. 8, 1997 |
| 5608377 |
Acoustic anti-tampering detector |
Mar. 4, 1997 |
| 5606705 |
Communication coordinator for messages to be sent from at least one data source to a plurality of clients |
Feb. 25, 1997 |
| 5594417 |
Fire alarm system |
Jan. 14, 1997 |
| 5589818 |
Personal response system with remotely adjustable microphone sensitivity |
Dec. 31, 1996 |
| 5581236 |
Methods and apparatus for intrusion detection having improved immunity to false alarms |
Dec. 3, 1996 |
| 5578987 |
Monitoring apparatus for an alarm device |
Nov. 26, 1996 |
| 5572189 |
Alarm collection apparatus of central maintenance operation center |
Nov. 5, 1996 |
| 5565842 |
Alarm information transfer system for use in a digital transmission device |
Oct. 15, 1996 |
| 5565852 |
Smoke detector with digital display |
Oct. 15, 1996 |
| 5555454 |
Remote security light signal alert system |
Sep. 10, 1996 |
| 5552763 |
Fire alarm system with sensitivity adjustment |
Sep. 3, 1996 |
| 5543778 |
Security system |
Aug. 6, 1996 |
| 5541575 |
Leakage detection system |
Jul. 30, 1996 |
| 5525962 |
Communication system and method |
Jun. 11, 1996 |
| 5517175 |
Potential adjusting sensor supervision circuit |
May. 14, 1996 |
| 5513105 |
Vehicle security system |
Apr. 30, 1996 |
| 5510774 |
Energy efficient independent alarm system |
Apr. 23, 1996 |
| 5504473 |
Method of analyzing signal quality |
Apr. 2, 1996 |
| 5499012 |
Intrusion detector test circuit which automatically disables a detected-event indicator |
Mar. 12, 1996 |
| 5499016 |
Intrusion alarm system |
Mar. 12, 1996 |
| 5485142 |
Remote monitor alarm system |
Jan. 16, 1996 |
| 5483222 |
Multiple sensor apparatus and method |
Jan. 9, 1996 |
| 5475363 |
Disaster prevention monitoring apparatus |
Dec. 12, 1995 |
| 5473308 |
Remote supervisory system for network elements |
Dec. 5, 1995 |
| 5457730 |
Combination telephone set and security panel monitor |
Oct. 10, 1995 |
| 5440293 |
Detector supervision apparatus and method |
Aug. 8, 1995 |
| 5436610 |
System and method for transferring local alarm service monitoring on an overload basis |
Jul. 25, 1995 |
| 5428341 |
Fire receiver |
Jun. 27, 1995 |
| 5414409 |
Alarm system for detecting an audio signal when glass breakage occurs |
May. 9, 1995 |
| 5408217 |
Secure fire/security/sensor transmitter system |
Apr. 18, 1995 |
| 5353315 |
Priority coding for control room alarms |
Oct. 4, 1994 |
| 5334969 |
Vehicle security system with controller proximity sensor |
Aug. 2, 1994 |
| 5334970 |
Alarm system |
Aug. 2, 1994 |
| 5297252 |
Color graphics terminal for monitoring an alarm system |
Mar. 22, 1994 |
| 5293155 |
Interface for a supervised multi-input audible warning system |
Mar. 8, 1994 |
| 5287390 |
Alarm system for a nuclear control complex |
Feb. 15, 1994 |
| 5283549 |
Infrared sentry with voiced radio dispatched alarms |
Feb. 1, 1994 |
| 5276427 |
Auto-adjust motion detection system |
Jan. 4, 1994 |
| 5250951 |
Motor vehicle police radar detector for detecting multiple radar sources |
Oct. 5, 1993 |
| 5227776 |
Combined alarm, security and rescue system |
Jul. 13, 1993 |
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