| 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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| 06/07/2000 | CN1255695A Device for checking function of scattered light smoke warner |
| 05/31/2000 | EP1005005A2 Ionisation smoke detector |
| 05/31/2000 | EP1004106A1 Carbon monoxide and smoke detection apparatus |
| 05/31/2000 | EP0737951B1 Power supply |
| 05/25/2000 | WO2000029856A1 Displacement sensor in a system suitable for controlling movements and alarms |
| 05/17/2000 | EP1001554A2 Line shunt and ground fault detection apparatus and method |
| 05/17/2000 | EP1001397A2 Transducer and method for operating a transducer |
| 05/17/2000 | EP1000422A1 Multi-station dangerous condition alarm system incorporating alarm and chirp origination feature |
| 05/16/2000 | US6064064 Fire detector |
| 05/16/2000 | CA2053865C Continuous cipher synchronization for cellular communication system |
| 05/11/2000 | DE19952327A1 Brandsensor und Verfahren zur Detektion eines Feuers Fire sensor and method for detecting a fire, |
| 05/11/2000 | DE19850579A1 Meßumformer sowie Verfahren zum Betreiben eines Meßumformers Transmitter and method for operating a transmitter |
| 05/09/2000 | US6060991 Detecting method and apparatus using a programmable memory device for storing a digitized reference value |
| 05/03/2000 | EP0997727A1 Improved diffusion-type gas sample chamber |
| 05/03/2000 | CN1252030A Method for protecting devices, specially car radios, against theft |
| 05/03/2000 | CN1052087C Arrangement for early detection of fires |
| 04/27/2000 | DE19946980A1 Ambient condition sensor for use in smoke detectors, which rely on variable sampling rates, uses a control element to sample the sensor output and then increase the sampling rate if the sensor output exhibits a preset pattern |
| 04/25/2000 | US6054930 Meter tamper detection device capable of counting multiple openings |
| 04/25/2000 | US6054920 Alarm system receiver supervisor |
| 04/19/2000 | CN1250922A Remote-controlled monitor system |
| 04/12/2000 | CN1250200A Variable sampling rate detector |
| 04/12/2000 | CN1051391C 热量探测器 Heat Detector |
| 04/12/2000 | CN1051390C Sensitivity measuring apparatus for use with a fire detector |
| 04/11/2000 | US6049283 Gas detecting apparatus |
| 04/06/2000 | WO2000019236A1 Object identification apparatus |
| 04/05/2000 | EP0991042A2 Signalling device and monitoring system |
| 04/04/2000 | US6046452 Process and system for flame detection |
| 04/04/2000 | CA2169741C Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy |
| 03/28/2000 | US6043744 Antitheft system |
| 03/28/2000 | US6043501 Continuous input cell for data acquisition circuits |
| 03/22/2000 | EP0987663A1 Optical smoke detector according to the extinguish principle and method for compensating the temperature drift |
| 03/22/2000 | CN1248036A Automatic monitoring method and network system of city fire alarm units |
| 03/22/2000 | CN1248034A Optical smoke gas alarm operated by extinction principle and temp. drift method for compensating the alarm |
| 03/14/2000 | US6038289 Redundant video alarm monitoring system |
| 03/07/2000 | US6034612 Circuitry and process for testing non-intermittent signal generators |
| 03/07/2000 | US6034601 Method and apparatus for determining proper installation of alarm devices |
| 03/01/2000 | EP0700557B1 Signal evaluation circuit for a movement detector |
| 02/29/2000 | US6031456 Detector |
| 02/16/2000 | EP0980056A1 Alarm system |
| 02/15/2000 | US6025779 Alarm system |
| 02/10/2000 | WO2000007158A1 Emergency reporting apparatus with self-diagnostic function |
| 02/02/2000 | EP0822908B1 Dc input cell for data acquisition circuits |
| 02/02/2000 | EP0822907B1 Ac input cell for data acquisition circuits |
| 01/27/2000 | DE19934171A1 Ambient condition detector filtering apparatus for distributed fire alarm systems |
| 01/26/2000 | EP0973659A2 Method for protecting devices, specially car radios, against theft |
| 01/26/2000 | CN1242313A Device for monitoring electric system of automobile |
| 01/20/2000 | WO2000003368A1 Bus-operational sensor device and corresponding test method |
| 01/19/2000 | EP0973137A1 Motion detector |
| 01/19/2000 | CN1242095A Fire and smoke detection and control system |
| 01/18/2000 | US6015230 Method and apparatus for testing heat detectors |
| 01/13/2000 | DE19830772A1 Bus-betreibbare Sensorvorrichtung und entsprechendes Prüfverfahren Bus-operated sensor device and corresponding test methods |
| 01/12/2000 | EP0971329A1 Device for testing smoke detectors of the light diffusion type |
| 01/12/2000 | EP0971328A1 Device for testing smoke detectors of the light diffusion type |
| 01/12/2000 | EP0970458A1 Walk-test control circuit for security alarm device |
| 01/11/2000 | US6014084 Electronic self-locating system and method |
| 01/05/2000 | DE19839047A1 Verfahren und Vorrichtung zur Drifterkennung Method and apparatus for drift detection |
| 01/04/2000 | US6011465 Backup arrangement for alarm system |
| 01/04/2000 | US6011464 Method for analyzing the signals of a danger alarm system and danger alarm system for implementing said method |
| 12/30/1999 | DE19828332A1 Remote diagnosis or data input module for door or window |
| 12/29/1999 | WO1999067758A1 Method and device for detecting drifts, jumps and/or outliers of measurement values |
| 12/29/1999 | CN1239795A Dynamic monitoring method for analog quantity detector in alarm controller |
| 12/23/1999 | DE19826850A1 Anordnung zur Lageerkennung eines Gegenstandes Arrangement for determining the position of an object |
| 12/23/1999 | DE19826087A1 Einrichtung einer Endstelle eines Telekommunikationsnetzes Means a terminal of a telecommunications network |
| 12/22/1999 | EP0965967A2 Device for recognising the position of an object |
| 12/22/1999 | EP0965964A2 Fire alarm system |
| 12/22/1999 | CN2355387Y Electric network alarming and controlling device |
| 12/22/1999 | CN1239265A Fire alarm system |
| 12/15/1999 | EP0964568A2 Monitoring arrangement and telecommunication network terminal |
| 12/08/1999 | EP0716403B1 Monitor apparatus of alarm apparatus |
| 12/02/1999 | DE19809763A1 Verfahren und Sensor zur Brandmeldung Method and sensor for fire alarm |
| 12/01/1999 | EP0961254A2 Gas explosion protection device |
| 11/30/1999 | US5995206 Thermal object measuring apparatus |
| 11/24/1999 | EP0959441A2 Detector removal signalling device |
| 11/24/1999 | EP0958562A1 Occupancy sensor and method of operating same |
| 11/24/1999 | CN1236103A Meter opening detect ion device |
| 11/23/1999 | US5990786 Advanced method of indicating incoming threat level to an electronically secured vehicle and apparatus therefor |
| 11/16/1999 | US5986357 Occupancy sensor and method of operating same |
| 11/11/1999 | WO1999057693A1 Sensor device providing indication of device health |
| 11/10/1999 | CN1234893A Improvement relating to event detection and recordal |
| 11/09/1999 | US5983373 Fail-safe system monitoring and safety communication network |
| 11/04/1999 | DE19917109A1 Infrared movement sensor operating in daylight |
| 11/03/1999 | EP0870287B1 Event detection device with fault monitoring capability |
| 11/03/1999 | CN2347218Y User's alarming controller used in network of security and alarming |
| 11/02/1999 | US5977871 Alarm reporting system |
| 10/21/1999 | WO1999053278A1 Sensor device and method for operating a sensor device |
| 10/19/1999 | US5969604 System and method of adjusting smoothing |
| 10/19/1999 | US5969600 Dangerous condition warning device incorporating a time-limited hush mode of operation to defeat an audible low battery warning signal |
| 10/13/1999 | EP0949511A1 Device for detecting the opening of a utility meter |
| 10/12/1999 | US5966079 Visual indicator for identifying which of a plurality of dangerous condition warning devices has issued an audible low battery warning signal |
| 10/12/1999 | US5966077 Fire detector |
| 10/12/1999 | US5966069 Exit sign self-testing system |
| 10/06/1999 | CA2266612A1 Device for detecting whether a meter is opened |
| 09/29/1999 | EP0944887A1 Fire and smoke detection and control system |
| 09/29/1999 | EP0944883A1 Intrusion protection system with television device |
| 09/15/1999 | EP0823107A4 Secure remote sensor/transmitter array system |
| 09/15/1999 | CN1228571A Remote multifunction safety and protective system controlled by computer |
| 09/14/1999 | US5952933 System having advanced embedded code hopping encryption and learn mode therefor |
| 09/08/1999 | EP0940789A2 Method and sensor for fire detection |
| 09/02/1999 | WO1999044181A1 Environmental condition detector transmitter interface |
| 09/02/1999 | CA2286581A1 Environmental condition detector transmitter interface |