Patents
Sitemap › G08 - Signalling › G08B - Signalling or calling systems; Order telegraphs; Alarm systems › G08B 29 - Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
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)
11/1998
11/11/1998EP0877347A2 Fire alarm systems
11/10/1998US5834943 Apparatus and method for sensing failed temperature responsive sensors
11/05/1998WO1998049570A1 Computer monitoring system
11/03/1998US5831537 Electrical current saving combined smoke and fire detector
11/03/1998US5831529 Security system implemented with an anti-masking dector using light guides
11/03/1998US5831524 System and method for dynamic adjustment of filtering in an alarm system
10/1998
10/28/1998EP0874342A2 Differentiation method in the processing of alarm signals
10/28/1998CN1197258A Two Defence areas alarm controller
10/27/1998US5828300 Alarm system with supervision controlled receiver parameter modification
10/27/1998CA2122173C Alarm system
10/22/1998WO1998046455A2 Method for protecting devices, specially car radios, against theft
10/22/1998WO1998030987A3 Remote detecting system and method
10/21/1998EP0872817A1 A hasard warning device and operating module
10/20/1998CA2097113C Sensitivity measuring apparatus for use with a fire detector
10/20/1998CA1340093C Control system for fire suppression apparatus
10/15/1998DE19715049A1 Verfahren zur Erlangung eines Diebstahlsschutzes für Geräte, insbesondere für Autoradios Procedure for obtaining a theft protection for devices, especially for car radios
10/14/1998EP0870287A1 Event detection device with fault monitoring capability
10/13/1998US5821870 Monitored security switch assembly
10/13/1998US5821866 Self-diagnosing smoke detector assembly
10/13/1998US5820406 For preventing closure of a battery compartment cover in a battery
10/06/1998US5818326 Early fire detection using temperature and smoke sensing
10/06/1998CA1340076C Control system for fire suppression apparatus
10/06/1998CA1340075C Control system for fire suppression apparatus
10/01/1998WO1998043220A1 Walk-test control circuit for security alarm device
09/1998
09/30/1998EP0772837B1 Checkout lane alert system and method for stores having express checkout lanes
09/29/1998US5815066 Fire alarm safety silencing system
09/23/1998EP0865970A2 Antitheft device and method for accessories
09/23/1998EP0865646A1 Method for analyzing the signals of a danger alarm system and danger alarm system for implementing said method
09/23/1998CN1039945C Setting device for fire alarm system
09/16/1998EP0772854B1 Vehicle security system
09/01/1998US5801626 Alarm communications system with supervision signal RSSI analysis
09/01/1998CA2099971C Detection signal evaluation at varying signal levels
08/1998
08/27/1998DE19706612A1 Optoelectronic device for monitoring surveillance zone
08/25/1998US5798711 High throughput embedded code hopping system with bypass mode
08/25/1998US5798701 Self-adjusting smoke detector with self-diagnostic capabilities
08/25/1998US5798700 False alarm resistant fire detector with improved performance
08/19/1998EP0859502A1 Alarm reporting system
08/18/1998US5796353 Fault monitoring event detection device
08/13/1998WO1998026387A3 Fire and smoke detection and control system
08/11/1998US5793288 Intrusion alarm with independent trouble evaluation
08/11/1998US5793286 Combined infrasonic and infrared intrusion detection system
08/06/1998WO1998034206A1 Occupancy sensor and method of operating same
08/05/1998EP0856826A2 A security system
07/1998
07/28/1998US5786756 Method and system for the prevention of false alarms in a fire alarm system
07/28/1998US5786755 Alarm escalation method
07/28/1998US5786644 Two wire PIR occupancy sensor utilizing a rechargeable energy storage device
07/28/1998US5785891 Spray formulation for the testing of smoke detectors
07/22/1998CN1188295A Multifunctional intelligent monitoring system for storied buildings and housing district
07/22/1998CN1039261C Failure detector for warning device
07/21/1998US5783989 For monitoring a protected area and sounding an alarm
07/16/1998WO1998030987A2 Remote detecting system and method
07/14/1998US5780854 Structure for an infrared photoelectric device
07/09/1998WO1998029846A1 Multi-sensor detection system
07/07/1998US5777550 High reliability instrument system
07/02/1998WO1998028724A1 An electronic intrusion detection system for monitored environments
07/02/1998DE19709801C1 Protection device for external alarm signal source e.g. for burglar alarm system
07/01/1998CN1186534A Advanced embedded code hopping system
06/1998
06/30/1998US5773826 Flame detector and protective cover with wide spectrum characteristics
06/25/1998DE19651172A1 Automatic surveillance system for area or building
06/24/1998EP0849714A1 Method for evaluating a signal of a motion detector
06/18/1998WO1998026389A1 Intrusion protection system with television device
06/18/1998WO1998026387A2 Fire and smoke detection and control system
06/17/1998CN1185243A Multiple transmission channel group transmitter
06/16/1998US5768343 Alarm system backup
06/16/1998US5767776 Fire detector
06/09/1998US5764729 In a telephone operated security alarm system
06/09/1998US5764142 Fire alarm system with smoke particle discrimination
05/1998
05/27/1998CN1183156A Alarm sensor multiplexing
05/22/1998WO1998021701A1 Balanced type magnetically actuated proximity switch and radio frequency monitoring system
05/22/1998WO1998021079A1 Method of automatically adapting setpoint inputs for a danger zone monitoring system and arrangement for carrying out this method
05/20/1998CN1182495A Advanced method of indicating incoming threat level
05/20/1998CN1182393A AC input cell for data acquisition circuit
05/20/1998CN1182392A Continuous input cell for data acquisition circuit
05/19/1998US5754963 Method and apparatus for diagnosing and isolating faulty sensors in a redundant sensor system
05/19/1998US5754103 Transmission line-monitoring apparatus for use in a fire alarm system
05/13/1998EP0841563A1 Electrochemical cells monitor
05/13/1998EP0772851B1 Fire detector comprising an analog sensor
05/13/1998CN1038368C Smoke type fire detector
05/12/1998US5751209 System for the early detection of fires
05/12/1998CA2045055C Telemetry monitoring system for transmitting information by means of asynchronous transfer mode technique in broadband isdn
05/05/1998US5748079 Alarm communications system with independent supervision signal analysis
04/1998
04/29/1998EP0838739A1 HVAC network verification system
04/28/1998US5745037 Method for monitoring individual persons
04/23/1998DE19648623C1 Verfahren zum selbsttätigen Adaptieren der Sollwertvorgaben für eine Gefahrenraumüberwachungseinrichtung und Einrichtungen zur Durchführung dieses Verfahrens A method of automatically adapting the set values ​​for risk monitoring device and means for carrying out this method
04/21/1998US5742231 Intrusion detection system
04/16/1998WO1998015931A1 Method for analyzing the signals of a danger alarm system and danger alarm system for implementing said method
04/15/1998EP0658264B1 Smoke simulator for scattered light detectors, process for regulating their sensitivity to smoke and use of the simulator
04/08/1998EP0834847A1 Electrical equipment for anti-theft installations or similar
04/08/1998EP0834846A2 Wireless hazard signalling system and method
04/08/1998EP0834845A1 Method for frequency analysis of a signal
04/08/1998EP0834844A1 Security device
04/07/1998US5737391 Alarm system backup with cut line detector
04/07/1998US5736928 Pre-processor apparatus and method
04/07/1998US5736927 Audio listen and voice security system
03/1998
03/31/1998US5734804 Method for displaying machine malfunctions
03/31/1998US5734322 Communication circuit trouble checking apparatus
03/25/1998CN1177160A Alarm reporting apparatus
03/18/1998EP0829138A1 Multiple transmission channel group transmitter
03/17/1998US5729193 Method of monitoring a vehicle interior
03/10/1998US5726637 Alarm and safeguard system
1 ... 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 ... 69