Patents for G08B 29 - Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation (6,872) |
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02/05/2003 | EP1281167A1 A system and an arrangement to determine the position in a hazardous situation |
02/04/2003 | US6515589 Scattering light smoke alarm |
02/04/2003 | US6515283 Fire detector with modulation index measurement |
01/30/2003 | US20030020617 Detector with ambient photon sensor and other sensors |
01/23/2003 | WO2002058026A9 System for warning device having information interface |
01/23/2003 | US20030016128 Environmental monitoring system |
01/22/2003 | CN1099660C Method of detecting flame and flame detector for carrying out the method |
01/21/2003 | US6510403 Time constrained sensor data retrieval system and method |
01/21/2003 | US6509835 Filtering method and circuit particularly useful in doppler motion sensor devices and intrusion detector systems |
01/16/2003 | US20030011473 Apparatus and method for detecting intrusion and non-intrusion events |
01/15/2003 | CN1099094C 火警系统 Fire alarm system |
01/14/2003 | US6507277 Danger signalling system |
01/14/2003 | US6507023 Fire detector with electronic frequency analysis |
01/03/2003 | WO2003001331A2 Environmental monitoring system |
01/02/2003 | US20030001746 Self-diagnostic smoke detector |
01/02/2003 | EP1271444A1 Video smoke detecting system and method for testing the same |
12/31/2002 | US6501810 Fast frame synchronization |
12/26/2002 | US20020196140 Method and device for event detection utilizing data from a multiplicity of sensor sources |
12/24/2002 | US6498563 Synchronized communication system |
12/19/2002 | US20020193076 Medical monitoring system having multipath communications capability |
12/12/2002 | US20020186141 Wireless transfer of data from a detector |
12/11/2002 | EP1264292A1 Pet resistant pir detector |
12/11/2002 | CN2525608Y Answering type anti-theft alarm device |
12/10/2002 | US6493687 Apparatus and method for detecting glass break |
12/10/2002 | US6492907 Detector system |
12/10/2002 | US6492905 Object proximity/security adaptive event detection |
12/04/2002 | EP1261954A1 A tag evaluation module for radio frequency identification (rfid) systems |
11/28/2002 | US20020177428 Remote notification of monitored condition |
11/28/2002 | US20020175815 Dual technology occupancy sensor and method for using the same |
11/27/2002 | EP0973659B1 Method for protecting devices, specially car radios, against theft |
11/27/2002 | EP0970458B1 Walk-test control circuit for security alarm device |
11/27/2002 | CN1382289A Time constrained sensor data retrieval system and method |
11/26/2002 | CA2324274C Sensor device providing indication of device health |
11/21/2002 | US20020174367 Method and apparatus for remotely monitoring a site |
11/21/2002 | US20020170142 Smoke detector changing device |
11/21/2002 | DE10104861A1 Method for recognizing a fire uses optical measurement to recognize the fire on reaching an alarm threshold through a measurement value in the optical measurement. |
11/20/2002 | EP1258849A2 Anti-intrusion detecting device |
11/20/2002 | CN2521680Y Line antitheft umbrella |
11/14/2002 | WO2002073565A9 Smoke detector changing device |
11/14/2002 | DE10122572A1 Smoke detector system for buildings with high ceilings has integral self-test sensor system |
11/12/2002 | US6480109 Alarm lockout apparatus |
11/07/2002 | WO2002089338A2 Selective metal removal process for metallized retro-reflective and holographic films and radio frequency devices made therewith |
11/07/2002 | WO2002089082A1 Compact particle sensor |
10/31/2002 | WO2002086835A1 Medical monitoring system having multipath communications capability |
10/31/2002 | US20020160746 Emergency alarm terminal and emergency alarm system |
10/31/2002 | CA2444956A1 Medical monitoring system having multipath communications capability |
10/30/2002 | EP1252613A1 Time constrained sensor data retrieval system and method |
10/29/2002 | US6472997 Touch pad, led motion detector head |
10/24/2002 | US20020156166 Composition for use in the testing of smoke detectors |
10/24/2002 | US20020154023 Bolt tamper sensor |
10/24/2002 | US20020154009 Distributed verification, confirmation or delay time system and method |
10/23/2002 | EP1251471A2 Fire alarm system with smoke particle discrimination |
10/22/2002 | US6469625 Security sensor having disturbance detecting capability |
10/22/2002 | US6469623 Smoke detector maintenance and verification tool |
10/17/2002 | WO2002081212A1 Chemical imaging of a lithographic printing plate |
10/17/2002 | DE10117939A1 Object surveillance device has recording of image sequence by camera triggered via movement detector or signal from acoustic signal source |
10/17/2002 | CA2442832A1 Chemical imaging of a lithographic printing plate |
10/16/2002 | EP1249004A1 Method to manufacture a smart label inlet web and a smart label inlet web |
10/09/2002 | EP0882278B1 An alarm system |
10/08/2002 | US6462663 Use of detector arrays to detect cessation of motion |
10/08/2002 | US6462657 Intrusion detection apparatus having a virtual capacitor |
10/08/2002 | US6462652 Distributed verification, confirmation or delay time system and method |
10/03/2002 | WO2002077938A1 Personal property alarm system |
10/03/2002 | WO2001020569A9 Adverse condition detection and notification apparatus |
10/03/2002 | CA2441584A1 Personal property alarm system |
10/02/2002 | CN1372229A Danger signal reporting system |
10/01/2002 | US6459370 Method and apparatus for determining proper installation of alarm devices |
09/26/2002 | US20020135481 Tamper evident smart label with RF transponder |
09/26/2002 | US20020134131 Ducted test tool |
09/24/2002 | US6456379 Optical smoke detector operating in accordance with the extinction principle and method for compensating its temperature drift |
09/24/2002 | US6456322 Intrusion protection system with television device |
09/19/2002 | WO2002073565A1 Smoke detector changing device |
09/19/2002 | US20020130782 Device with silencing circuitry |
09/19/2002 | DE10109362A1 Verfahren zur Branderkennung Methods of fire detection |
09/19/2002 | DE10102856A1 Microphone for alarm intercom incorporates function monitoring of mechanical parts of microphone |
09/19/2002 | CA2441316A1 Smoke detector changing device |
09/18/2002 | EP1241649A2 Composition for use in the testing of smoke detectors |
09/17/2002 | US6452403 Test apparatus for vehicle intrusion alarm |
09/17/2002 | US6452361 Battery system |
09/12/2002 | WO2002071361A1 Smoke detector |
09/12/2002 | WO2002071357A1 Device with silencing circuitry |
09/12/2002 | US20020126016 Remotely controlled smoke alarm assembly |
09/11/2002 | CN1368711A Alarm device for broken power transmission line |
09/06/2002 | WO2002069297A1 Method for recognition of fire |
09/06/2002 | WO2002069296A1 Distributed verification, confirmation or delay time system and method |
09/04/2002 | EP1236085A1 Method of linking authorized users to a plurality of devices |
09/04/2002 | EP0898771B1 An electronic intrusion detection system for monitored environments |
09/03/2002 | US6445292 Processor based wireless detector |
08/28/2002 | EP1235193A2 Multiuse on/off switch for hazard detector |
08/28/2002 | CN1366651A Ducted test tool |
08/27/2002 | US6441733 Method for making security systems more tamper resistant and a security system |
08/22/2002 | US20020113698 System for detecting intruders |
08/20/2002 | US6437698 Smoke alarm device |
08/14/2002 | CN1364283A Method for processing of signal from alarm and alarms with means for carrying out said method |
08/13/2002 | US6433700 Multiuse on/off switch for hazard detector |
08/08/2002 | US20020105410 Means, apparatus, and method of security and convenience through voluntary disclosure |
08/08/2002 | US20020104455 Chemical imaging of a lithographic printing plate |
08/01/2002 | WO2002027293A3 Gas or heat detector, gas or heat generator, flue gas generator, method for testing a gas detector or a heat detector, and method for testing a flue gas detector |
08/01/2002 | US20020101345 Smoke detector maintenance and verification tool |
07/31/2002 | EP1226567A1 Adverse condition detection and notification apparatus |