| 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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| 02/10/1993 | EP0526898A1 Threshold determination apparatus and method |
| 02/08/1993 | CA2075260A1 Threshold determination apparatus and method |
| 02/04/1993 | WO1993002510A1 Network monitor and test apparatus |
| 01/27/1993 | EP0524330A1 Process for fault recognition and location in redundant signal generating devices used in a automation system |
| 01/21/1993 | DE4123971A1 Alarm installation with detectors and user-programmed computer - includes combinatorial circuit implemented on pluggable card for secure acquisition, processing and transmission of monitor data |
| 01/13/1993 | EP0522662A1 System and method for remote telephonic station actuation |
| 01/07/1993 | WO1993000699A1 Phase advance for ambient light suppression in phototransistors |
| 01/07/1993 | DE4219555A1 Installation arrangement in building system applications - has sections of serial bus system for connecting participant stations with receivers controlling several transmitters |
| 01/05/1993 | US5177352 Integrated optical tamper sensor with planar waveguide |
| 12/29/1992 | US5175531 Battery condition monitoring system for batteries connected in parallel |
| 12/23/1992 | EP0436538A4 Security system for an environment |
| 12/16/1992 | EP0518685A2 Alarm assembly |
| 12/15/1992 | US5172099 Self monitoring fire detection system |
| 12/15/1992 | US5172096 Threshold determination apparatus and method |
| 12/08/1992 | US5170150 Photoelectric smoke detector with improved testing means |
| 12/08/1992 | US5170148 Radiant energy testing device for fire detectors |
| 12/08/1992 | CA1311292C Acoustic pressure differential detector for detecting the operiodic wave following the opening of a door or a window in a closed room |
| 12/08/1992 | CA1311274C Detector unit with auxilliary battery |
| 11/25/1992 | CN1066524A Sound anti-muffler for sound generator |
| 11/24/1992 | US5166664 Warning method and apparatus and parallel correlator particularly useful therein |
| 11/24/1992 | CA1310694C Method and apparatus for testing photoelectric circuits |
| 11/17/1992 | US5164703 Audio intrusion detection system |
| 11/17/1992 | US5164702 Test apparatus and method for security system |
| 11/17/1992 | US5163332 For transmitting radiation |
| 11/05/1992 | DE4113665A1 Magnetically activated proximity switch for security alarm system - has reed switching element between reed contact and short circuit loop to suppress interference fields |
| 11/04/1992 | CN1065945A Device for signalling position of mobile member |
| 10/30/1992 | CA2067259A1 Sound anti-muffler for a sound generator |
| 10/28/1992 | EP0510395A1 Apparatus for monitoring the functioning of a passive infra-red movement detector in a hazard detection system |
| 10/27/1992 | US5159317 System and method for remote telephonic station actuation |
| 10/22/1992 | DE4212260A1 Verfahren zum feststellen von uebertragungsfehlern bei einem katastrophenverhuetungsueberwachungssystem A method for detecting transmission errors at a katastrophenverhuetungsueberwachungssystem |
| 10/21/1992 | EP0509920A1 Position signalling device of a movable component |
| 10/20/1992 | US5157375 Electronic vehicle security system |
| 10/15/1992 | DE4140351A1 Light sensitive smoke detector for building or house - increases triggering threshold when ambient light is present using series resistors and light-sensitive element |
| 10/13/1992 | US5155468 Alarm condition detecting method and apparatus |
| 10/13/1992 | US5154504 Communications and testing for emergency systems |
| 10/07/1992 | EP0507025A2 Intruder detection arrangements and methods |
| 09/30/1992 | EP0505774A1 Security switching device |
| 09/30/1992 | EP0505399A1 Control system for fire alarm installations with peripheral fire protection devices and a central fire alarm system |
| 09/29/1992 | US5151682 Fail-safe testing of an infrared sensor arrangement |
| 09/22/1992 | US5150100 Security system |
| 09/22/1992 | US5149039 Protective cage |
| 09/16/1992 | EP0503965A1 Alarm system |
| 09/16/1992 | EP0503167A1 A method for testing smoke sensor and a smoke sensor having a function of executing the test |
| 09/16/1992 | EP0503122A1 Arrangement for commuting primary leads during faults |
| 09/15/1992 | US5148158 Emergency lighting unit having remote test capability |
| 09/08/1992 | US5146215 Electronically programmable remote control for vehicle security system |
| 09/02/1992 | EP0501194A1 Method of predetermining the time of maintenance of alarm detectors |
| 09/02/1992 | EP0500820A1 Improved spray formulation for the testing of smoke detectors |
| 08/19/1992 | EP0499177A1 Anti-intrusion device |
| 08/18/1992 | US5140306 Alarm indicating system |
| 08/18/1992 | US5139699 Spray formulation for the testing of smoke detectors |
| 08/04/1992 | US5136499 Monitoring for distinguishing normal from abnormal deviations in a knitting machine |
| 08/04/1992 | CA1306030C Failure alarm device for an appliance |
| 07/21/1992 | CA1305525C Secure personnel monitoring system |
| 07/15/1992 | EP0494715A1 A theft protection system |
| 07/08/1992 | EP0493712A1 Locking apparatus for a motor vehicle door |
| 06/17/1992 | EP0490836A2 Improvement in independent emergency lighting systems with alarm signals for fires, harmful gas, surrounding air pollution and alike |
| 06/17/1992 | DE4106329C1 Protective housing for burglar alarm - has proximity switches to initiate alarm upon attempted sabotage |
| 06/10/1992 | EP0489232A1 Fire signal system with surveillance |
| 06/09/1992 | US5121101 Apparatus and method for a smoke alarm device with integrated testing circuits |
| 06/09/1992 | CA1303255C Test initiation apparatus with continuous or pulse input |
| 06/05/1992 | CA2056768A1 Fire detector system and method |
| 05/19/1992 | US5115223 Personnel location monitoring system and method |
| 05/14/1992 | DE4035710A1 Noise suppression method for sensor arrangement using transmitter and receiver - modulating random signal generated at transmitter and correlating received signal in evaluating circuit with random signal |
| 05/13/1992 | EP0484880A2 Radio alarm system |
| 05/12/1992 | USRE33920 Smoke detector having variable level sensitivity |
| 05/01/1992 | CA2054662A1 Transmitter for electronic vehicle security system |
| 04/29/1992 | EP0482526A2 Optimization method for adaptive sensor reading scheduling and delayed alarm evaluation in real-time diagnostic systems |
| 04/29/1992 | EP0482523A2 Multiple aspect operator interface for displaying fault diagnostics results in intelligent process control systems |
| 04/29/1992 | EP0482522A1 Automatic test generation for model-based real-time fault diagnostic systems |
| 04/28/1992 | CA1299660C Tag for use with personnel monitoring system |
| 04/22/1992 | EP0481934A1 An anti-masking device for security systems |
| 04/15/1992 | CN2101915U Tester for checking fireproof automatic alarm |
| 04/14/1992 | US5103932 Security system for an environment |
| 04/07/1992 | US5103216 Improperly inserted battery detector |
| 04/07/1992 | US5103214 Auxiliary alarm |
| 04/07/1992 | US5103096 Senses concentration of carbon dioxide |
| 04/02/1992 | WO1992005527A1 A personnel location monitoring system and method |
| 03/25/1992 | EP0476397A1 Intrusion detector |
| 03/19/1992 | WO1992004758A1 Improved communications and testing for emergency lighting systems |
| 03/18/1992 | EP0475219A1 Infrared intrusion detector |
| 03/17/1992 | US5097259 Alarm system |
| 03/03/1992 | US5093656 Active supervision of motion-detection systems |
| 03/03/1992 | CA1296790C Supervised, interactive alarm reporting system |
| 02/25/1992 | US5091690 Method for monitoring operational condition of circuit components |
| 02/25/1992 | US5091648 Radiation detection arrangements and methods |
| 02/25/1992 | US5091640 Phase advance for ambient light suppression in phototransistors |
| 02/18/1992 | USRE33824 Fault detecting intrusion detection device |
| 02/18/1992 | US5089807 Anti-theft device |
| 02/06/1992 | DE4024821A1 Monitor for sensor point(s) with sensor signal reception - is formed by transmitter of control signals in presettable time intervals |
| 02/04/1992 | US5086293 Line interruption supervisory device for a fire alarm system |
| 01/29/1992 | EP0468726A2 Paging receiver having a speaker and a LED alternatively driven on receiving a call |
| 01/28/1992 | US5084697 Error-free control circuit for alarm detectors |
| 01/28/1992 | US5084696 Signal detection system with dynamically adjustable detection threshold |
| 01/23/1992 | DE4022954A1 Fault detector, using redundant signal emitter outputs - user to determines fault probabilities to eliminate stochastic faults |
| 01/22/1992 | EP0467094A2 Telemetry monitoring method and device therefor for transmitting information by means of asynchronous transfer mode technique in broadband ISDN |
| 01/21/1992 | US5083109 Rotating source verification device |
| 01/21/1992 | US5083106 Intruder detection system with programmable countdown timer for self-supervision |
| 01/09/1992 | WO1992000240A1 Improved spray formulation for the testing of smoke detectors |
| 01/07/1992 | US5079422 Fire detection system using spatially cooperative multi-sensor input technique |