Patents
Patents for G08B 13 - Burglar, theft, or intruder alarms (42,025)
02/1992
02/05/1992EP0469769A2 Magnetically-coupled, two-resonant-circuit, frequency-division tag
02/04/1992US5086385 Expandable home automation system
02/03/1992CA2041827A1 Electronic article surveillance tag and method for implementing same
01/1992
01/30/1992DE4023341A1 Passive IR movement detector - has detecting angle adjuster consisting of two shutters, integrated in detector housing
01/29/1992EP0468839A1 Monitoring camera with integral support stand
01/29/1992CN2094772U Destroy -proof device for electronic theft-proof alarm device
01/29/1992CN2094771U Double-identifying infrared detecting device for invading
01/29/1992CN2094770U Theft-proof automatic starting alarm device
01/28/1992US5084697 Error-free control circuit for alarm detectors
01/28/1992CA1295030C Antipilferage systems
01/28/1992CA1295028C Electronic article surveillance system utilizing synchronous integration
01/23/1992WO1992001275A1 Labelling method and system for deterring theft
01/22/1992EP0467094A2 Telemetry monitoring method and device therefor for transmitting information by means of asynchronous transfer mode technique in broadband ISDN
01/22/1992EP0466996A1 Protection device for electrical apparatusses by setting them out of service
01/22/1992EP0466739A1 Monitoring system for monitoring the panes of glass of a space, for example a motor vehicle interior.
01/22/1992CN2094084U Theft, robbery or losing alarm
01/21/1992US5083112 Multi-layer thin-film eas marker
01/21/1992US5083111 Jamming apparatus for electronic article surveillance systems
01/21/1992US5083110 Window alarm system
01/21/1992US5083106 Intruder detection system with programmable countdown timer for self-supervision
01/21/1992US5083025 Passive infrared motion indicator
01/21/1992US5082232 Cable lock
01/21/1992CA1294687C Intruder alarm system
01/15/1992EP0466522A1 Infrared intruder-detection system
01/14/1992US5081446 Security tag for compact disc storage container
01/14/1992US5081445 Method for tagging articles used in conjunction with an electronic article surveillance system, and tags or labels useful in connection therewith
01/14/1992US5081406 Proximity responsive capacitance sensitive method, system, and associated electrical circuitry for use in controlling mechanical and electro-mechanical equipment
01/14/1992CA1294342C Electronic article surveillance system
01/14/1992CA1294117C Method of making deactivatable tags
01/09/1992DE4033260C1 Sensor video column for perimeter protection - houses water-sealed modules for IR transmitter receiver, sensors etc. screwed against sabotage and looking like ordinary post
01/07/1992US5079541 System and method for detecting movement of an infant from a secure area
01/07/1992US5079540 Theft detection tag with adjustable loop
01/07/1992US5079539 Storage case for compact discs and video cassettes
01/07/1992CA1294017C Deactivatable coded marker and magnetic article surveillance system
01/02/1992EP0463727A1 Pin-clutch mechanism for theft deterrent device
01/02/1992EP0463429A2 Door ajar alarm for refrigeration unit
01/02/1992EP0463415A2 Alarm device
01/02/1992EP0463294A1 Electronic seal
01/02/1992EP0463233A2 Activatable/deactivatable security tag for use with an electronic security system
01/01/1992CN2092141U Separation-type magno-controlled switch
01/01/1992CN2092125U Anti-theft alarming system for electric power installation
01/01/1992CN2092124U Anti-theft alarming device for colour tv
12/1991
12/31/1991US5077549 Integrating passive infrared intrusion detector
12/31/1991US5077548 Dual technology intruder detection system with sensitivity adjustment after "default"
12/28/1991WO1992000578A1 Activatable-deactivatable security tag for use with an electronic security system
12/27/1991EP0462442A1 Method of preventing arming of an intruder alarm device
12/27/1991EP0462162A1 Monitoring system and apparatus
12/27/1991EP0462102A1 A method for detecting external influence on an optical cable.
12/25/1991CN1057351A Multi-function computer theft deterent alarm
12/24/1991US5074368 Self-calibrating apparatus for article input and removal monitoring system
12/18/1991CN2091009U Portable anti-theft anti-losing alarm
12/18/1991CN2091008U Anti-theft alarm for electric power installation
12/17/1991CA1293319C Antitheft system
12/15/1991WO1991020026A1 Distributed database security system
12/12/1991WO1991019279A1 A system and method for detecting movement of an infant from a secure area
12/12/1991WO1991019277A1 Fiber optic security system for protecting equipment from tampering
12/11/1991CN2090554U Auto-controlled theft-proof alarm device
12/11/1991CN2090553U Theft-proof alarm device
12/10/1991US5072213 Sensor for merchandise security system
12/10/1991US5072212 Trip switch
12/10/1991US5072211 Safe alarm system
12/05/1991DE4017116A1 Security key holder coupled to central alarm system - activates or disables alarm system depending upon removal or replacement of keys
12/04/1991EP0459925A1 Volumetric movement detector for protection, in particular in motor cars
12/04/1991EP0459838A2 Flexible sheeting
12/04/1991EP0459722A1 Multi-layer thin-film EAS marker
12/04/1991EP0458923A1 Deactivatable resonance label.
12/04/1991CN2090083U Doppler anti-theft siren
12/03/1991US5070442 Computerized door locking and monitoring system using power-line carrier components
12/02/1991CA2043559A1 Movement sensor for protection namely of automobiles
11/1991
11/30/1991WO1991019278A1 Periodic pulse discrimination system
11/27/1991CN2089645U Anti-theft alarm
11/26/1991US5068643 Burglarproof device
11/26/1991US5068642 Alarm or warning device with sensing means in the form of a d.c. biased shielded coaxial cable
11/26/1991US5068641 Detection label for an anti-shop-lifting system
11/26/1991CA1292530C Magnetic marker having a rectangular configuration for electronic article surveillance
11/21/1991EP0457662A1 Method of analysis of radiated waves, such as an ultrasonic wave, device to put the method into operation and alarm system including such a device
11/21/1991EP0457661A1 Volumetric ultrasound detector
11/21/1991EP0457078A2 Electro-magnetic desensitizer
11/21/1991EP0456709A1 Personalized passive identification device
11/21/1991DE4015779A1 Electro magnetic desensitiser appts.
11/20/1991CN2089190U Removal anti-theft alarm
11/19/1991US5067012 Methods and systems for scanning and inspecting images
11/19/1991US5066942 Antitheft device for articles
11/19/1991US5066855 Infrared intrusion detector
11/17/1991CA2042490A1 Electro-magnetic desensitizer
11/14/1991WO1991017533A1 Shoplifting detection system with partly screened antennas
11/14/1991WO1991017532A1 Improvements relating to surveillance systems
11/13/1991EP0456482A1 Photoelectrical switching circuit
11/13/1991EP0456158A2 Anti-theft seal for commercial articles having rod-like portions
11/13/1991EP0455765A1 Automatic house-circuit control system
11/13/1991EP0171433B1 Identification system and transponder therefor
11/12/1991US5065138 Magnetically-coupled two-resonant-circuit, frequency divider for presence-detection-system tag
11/12/1991US5065137 Magnetically-coupled, two-resonant-circuit, frequency-division tag
11/06/1991CN2088271U High-facsimile burglar alarm
11/06/1991CN2088270U Multi-functional omnibearing remote control indoor burglar alarm
11/05/1991US5063372 Door ajar alarm for refrigeration unit
11/05/1991US5063367 Method and apparatus for producing complex magnetization patterns in hard magnetic materials
10/1991
10/31/1991WO1991016695A1 Proximity sensing security system
10/31/1991DE4013877A1 Passive infrared movement indicator - has high quality light flash produced to increase effectiveness of indicator
10/30/1991EP0454021A1 Method for deactivating a resonant tag and circuit for carrying out this method