Patents
Sitemap › G08 - Signalling › G08B - Signalling or calling systems; Order telegraphs; Alarm systems › G08B 13 - Burglar, theft, or intruder alarms
Patents for G08B 13 - Burglar, theft, or intruder alarms (42,025)
12/1985
12/17/1985US4559529 Antitheft system with digitally coded signal
12/17/1985US4559528 Ornamental vibration sensor device for burglar alarm system
12/17/1985US4559527 Dual mode electronic intrusion or burglar alarm system
12/17/1985US4559526 Security alarm system
12/10/1985US4558321 Visitor conversation system
12/10/1985US4558308 Intrusion warning wire-lattice, and method and device for manufacturing same
12/10/1985US4558307 Reminder device
12/10/1985CA1197916A1 Motion detector signal processing circuit
12/04/1985EP0162886A1 A device in an alarm system
12/03/1985US4556796 Infrared radiation detector
11/1985
11/27/1985EP0082861B1 Alarm system for safeguarding against the breakthrough of a surface
11/21/1985WO1985005220A1 Near-infrared radiation illuminator and near-infrared pickup apparatus
11/19/1985US4554459 Monitoring system for a predetermined field of view
11/19/1985CA1196986A1 Amorphous antipilferage marker
11/19/1985CA1196983A1 Multi-operation mode type of security-ensuring apparatus
11/19/1985CA1196969A1 Method and apparatus for detecting interruptions in the transmission of light signals
11/12/1985US4553138 Fire alarm system
11/12/1985US4553136 Amorphous antipilferage marker
11/12/1985US4553135 Electromagnetic field perimeter detection apparatus
11/12/1985CA1196707A1 Security-ensuring apparatus having an operational guidance function
11/07/1985WO1985004975A1 Resonant tag and deactivator for use in an electronic security system
11/06/1985EP0160093A1 Apparatus and method for a universal electronic locking system.
11/06/1985EP0159999A1 Warning device
11/06/1985EP0053185B1 Motion and intrusion detecting system
11/05/1985US4551713 Pet door mat alarm
11/05/1985US4551712 Electronic detection system for detecting a responder including a frequency divider
11/05/1985US4551711 Infrared-type intrusion detector
11/05/1985US4551654 Lighting control system and method
11/05/1985CA1196409A1 Theft detection method and apparatus in which the decay of a resonant circuit is detected
11/05/1985CA1196408A1 Surveillance system employing a dual function floor mat radiator
10/1985
10/24/1985WO1985004744A1 Method and device for the security of closed rooms
10/24/1985WO1985004728A1 Device for detecting movable objects
10/23/1985EP0159218A1 Differential pressure access detector
10/22/1985US4549186 Coil assembly for substantially isotropic flux linkage in a given plane
10/22/1985US4549133 Measuring arrangement for capacitive security fences
10/22/1985CA1195753A1 Ir intrusion detector with optical pattern locators
10/22/1985CA1195752A1 Ir intrusion detector with beam indicators
10/16/1985EP0158023A1 Method and circuit arrangement for monitoring the operation of ultrasonic alarm systems
10/16/1985EP0158022A1 Method and circuit arrangement for monitoring the operation of ultrasonic alarm systems
10/15/1985US4547767 Printed circuit board for activating and deactivating alarm systems
10/15/1985CA1195401A1 Electric field change sensor employing mains wiring as the transmitting antenna
10/09/1985EP0157117A1 Testing device for an intrusion-signalling apparatus
10/09/1985EP0157095A1 Electronic theft detection apparatus
10/08/1985US4546345 Theft preventing device
09/1985
09/24/1985US4543568 Burglar alarm with re-entry feature
09/17/1985US4541559 Method of making electrical connections between opposing metal foils having a flexible, insulating layer sandwiched therebetween
09/12/1985WO1985004040A1 A multiplexed alarm system
09/12/1985WO1985004039A1 Monitor for an alarm system
09/10/1985US4541115 Pattern processing system
09/10/1985US4540980 Portable security alarm
09/10/1985US4540977 Surveillance apparatus
09/04/1985EP0153916A2 Handbag with protection against theft and aggression
09/04/1985EP0153658A1 Safety clamp for theft protection
09/03/1985US4539558 Antitheft system
09/03/1985US4538527 Security system
09/03/1985CA1192761A1 Fiber-optical pressure detector
08/1985
08/29/1985WO1985003831A1 Identification system
08/29/1985WO1985003793A1 Method and system for detecting an indicating device
08/29/1985WO1985003792A1 Passive infra-red intrusion detector
08/29/1985WO1985003791A1 A warning device
08/28/1985EP0153286A2 Method and system for detecting an indicating device
08/28/1985EP0152858A2 Passive infrared intrusion detector
08/27/1985US4538140 Fiber optic acoustic transducer intrusion detection system
08/27/1985US4538139 Signalling apparatus
08/20/1985US4536754 Magnetically retained connecting cable incorporating magnetically operated switch
08/20/1985US4536753 Self monitoring intruder detecting system of noise-cancelling vibration detectors
08/20/1985US4536752 Intrusion detection system and method
08/20/1985US4536751 System for detecting an alarm
08/20/1985US4536749 Security-ensuring apparatus having an operational guidance function
08/15/1985WO1985003591A1 Method and circuit arrangement for the function control of ultra-sound alarm installation
08/15/1985WO1985003590A1 Method and circuit arrangement for the operation control of ultrasound alarm installations
08/15/1985WO1985003589A1 Test device for intrusion warning device
08/15/1985WO1985003588A1 Electronic surveillance system employing the doppler effect
08/15/1985WO1985003579A1 Range limited coherent frequency doppler surveillance system
08/13/1985US4535323 Preamplifying and signal processing method and apparatus for theft detection systems
08/13/1985US4535322 Ski theft alarm and runaway ski locator
08/13/1985US4535240 Intruder detection
08/06/1985US4533906 Fence particularly useful for detecting intrusion attempts
08/06/1985US4533904 Combination smoke and burglar alarm
07/1985
07/31/1985EP0149863A2 A device for protecting against burglary
07/30/1985US4532507 Security system with multiple levels of access
07/30/1985US4532498 Burglar alarm device
07/30/1985US4531264 Theft detection system target fastener
07/30/1985EP0094418A4 Antitheft system.
07/30/1985CA1191227A1 Burglar-proof barrier
07/30/1985CA1191226A1 Proximity detector
07/24/1985EP0149569A2 Surveillance system switching between more observation sources
07/24/1985EP0149240A2 Resonant tag circuits useful in electronic security systems
07/24/1985EP0148860A1 Tag intended to be associated to a product or article to enable to check for its presence
07/23/1985US4531117 Variable frequency RF electronic surveillance system
07/23/1985CA1190970A1 Dual frequency anti-theft system
07/17/1985EP0148593A1 Segmented optical system for an alarm system
07/17/1985EP0148368A2 Movement annunciator
07/17/1985EP0148248A1 Dual signal electromagnetic article theft detector.
07/17/1985EP0148190A1 A theft protection system particularly for shop areas.
07/16/1985US4529874 Motion detector for space surveillance
07/10/1985EP0147925A1 Combination infrared microwave intrusion detector
07/10/1985EP0147923A1 Alarm system
07/10/1985EP0041952B1 Danger detection device with detector
07/09/1985US4528559 Seismic actuation system
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