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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 |
| 5804891 |
Battery saving switching mechanism |
Sep. 8, 1998 |
| 5801625 |
Auxiliary control device for security alarm system |
Sep. 1, 1998 |
| 5801626 |
Alarm communications system with supervision signal RSSI analysis |
Sep. 1, 1998 |
| 5798692 |
Digital compensation circuit for calibration of sensors |
Aug. 25, 1998 |
| 5796353 |
Fault monitoring event detection device |
Aug. 18, 1998 |
| 5790019 |
Emergency alarm system |
Aug. 4, 1998 |
| 5790040 |
Battery-operated security system sensors |
Aug. 4, 1998 |
| 5790797 |
Load distribution system for monitoring device |
Aug. 4, 1998 |
| 5786755 |
Alarm escalation method |
Jul. 28, 1998 |
| 5786757 |
Load shed scheme for two wire data transmission |
Jul. 28, 1998 |
| 5781143 |
Auto-acquire of transmitter ID by receiver |
Jul. 14, 1998 |
| 5777548 |
Fire monitoring apparatus and computer readable medium recorded with fire monitoring program |
Jul. 7, 1998 |
| 5777549 |
Method and apparatus for policy-based alarm notification in a distributed network management environment |
Jul. 7, 1998 |
| 5764142 |
Fire alarm system with smoke particle discrimination |
Jun. 9, 1998 |
| 5761206 |
Message packet protocol for communication of remote sensor information in a wireless security system |
Jun. 2, 1998 |
| 5754103 |
Transmission line-monitoring apparatus for use in a fire alarm system |
May. 19, 1998 |
| 5748078 |
Alarm alerting method and apparatus |
May. 5, 1998 |
| 5748079 |
Alarm communications system with independent supervision signal analysis |
May. 5, 1998 |
| 5748086 |
Electronic article surveillance system with comb filtering and false alarm suppression |
May. 5, 1998 |
| 5745032 |
Processing facility alert and alarm indications for multiplexed transmission facilities having a plurality of multiplex levels |
Apr. 28, 1998 |
| 5736927 |
Audio listen and voice security system |
Apr. 7, 1998 |
| 5731756 |
Universal encrypted radio transmitter for multiple functions |
Mar. 24, 1998 |
| 5729197 |
Automatic, self-triggering alarm processing system and method |
Mar. 17, 1998 |
| 5726627 |
Security system with intermittent alarm location detection |
Mar. 10, 1998 |
| 5726912 |
Control system monitor |
Mar. 10, 1998 |
| 5721530 |
Stand alone mode for alarm-type module |
Feb. 24, 1998 |
| 5717378 |
Security system with fall back to local control |
Feb. 10, 1998 |
| 5708414 |
Sensitivity fault indication technique implemented in smoke detector system with self-diagnostic capabilities |
Jan. 13, 1998 |
| 5708416 |
Wireless detection or control arrangement for escalator or moving walk |
Jan. 13, 1998 |
| 5705978 |
Process control transmitter |
Jan. 6, 1998 |
| 5705979 |
Smoke detector/alarm panel interface unit |
Jan. 6, 1998 |
| 5696486 |
Method and apparatus for policy-based alarm notification in a distributed network management environment |
Dec. 9, 1997 |
| 5694114 |
Coherent alarm for a secure communication system |
Dec. 2, 1997 |
| 5689228 |
Parallel magnitude comparison using manchester carry chains |
Nov. 18, 1997 |
| 5689229 |
Patient care and communication system |
Nov. 18, 1997 |
| 5689233 |
Emergency information offering system |
Nov. 18, 1997 |
| 5686884 |
Supervised alarm system |
Nov. 11, 1997 |
| 5686885 |
Sensor test method and apparatus |
Nov. 11, 1997 |
| 5686886 |
Electronic neighborhood watch alert system and unit therefor |
Nov. 11, 1997 |
| 5677672 |
System and method for arming an alarm system when an occupant fails to turn the system on |
Oct. 14, 1997 |
| 5670937 |
Line monitor for two wire data transmission |
Sep. 23, 1997 |
| 5670938 |
Fire alarm device |
Sep. 23, 1997 |
| 5668531 |
Synchronized alarm holding system |
Sep. 16, 1997 |
| 5668532 |
Fault tolerant cooling in electrical apparatus |
Sep. 16, 1997 |
| 5659292 |
Apparatus including a fire sensor and a non-fire sensor |
Aug. 19, 1997 |
| 5654690 |
Fire alarm system |
Aug. 5, 1997 |
| 5654691 |
Auxiliary backup device of burglary alarm system |
Aug. 5, 1997 |
| 5652566 |
Alarm system |
Jul. 29, 1997 |
| 5644292 |
Alarm termination apparatus |
Jul. 1, 1997 |
| 5640140 |
Alarm processing apparatus |
Jun. 17, 1997 |
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