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)
08/1991
08/27/1991US5043702 Luggage with alarm device
08/22/1991WO1991013416A1 Improved electronic anti-theft merchandise tag
08/22/1991WO1991012598A1 A security system for surveilling the passage of commodities through defined zones
08/22/1991DE4005169A1 MOvement detector using IR sensor - converts sensor signals into digitally processed signals handled by microprocessor
08/22/1991CA2076381A1 Electronic anti-theft merchandise tag
08/21/1991WO1991013415A1 Open transmission line locating system
08/21/1991EP0442338A1 Optical monitoring device
08/21/1991EP0160093B1 Apparatus and method for a universal electronic locking system
08/20/1991US5041826 Interrogator
08/20/1991US5041815 Golf bag security alarm system
08/20/1991US5040326 System for detecting and capturing pests by suction
08/20/1991CA2010390A1 Open transmission line locating system
08/20/1991CA1287818C Arrangement in a purse or bag secured against theft
08/14/1991CN2082878U Numeral type alarm device
08/14/1991CN2082877U Theft-proof protector for tv set
08/14/1991CN2082876U Theft-proof alarm for many pieces of luggage
08/13/1991US5039982 Safeguarding against burglary
08/13/1991US5039981 Electromagnetic security detectors
08/08/1991DE4002259A1 Threaded nut incorporating antenna for wireless security monitoring - has radio or ultrasonic alarm signal transmitter triggered by loss of contact on loosening of nut
08/07/1991EP0440370A1 Composite antenna for electronic article surveillance systems
08/07/1991EP0440112A2 Radiation detector and use
08/07/1991EP0440017A1 Video and/or audio receiving and recording device
08/06/1991US5037669 Methods of manufacturing electromagnetic articles
08/06/1991US5037494 Amorphous alloy for strip-shaped sensor elements
08/02/1991CA2035070A1 Composite antenna for electronic article surveillance systems
07/1991
07/31/1991EP0439237A1 Method and apparatus for deactivating electromagnetic detection labels
07/30/1991US5036308 Identification system
07/30/1991CA1287114C Remote monitoring and alarm system employing multiple digitally encoded words
07/25/1991WO1991011738A1 Infrared intrusion detector
07/25/1991DE4001771A1 Roller-shutter or multipurpose security alarm equipment - housed in cigarette-packet-sized casing clamped to belt with actuator of electrically-powered or clockwork acoustic alarm generator
07/24/1991EP0437590A1 Antitheft contact sensor.
07/24/1991CN2081552U Automatic electronic alarm
07/24/1991CN1053313A Automatic electronic multifunctional anti-theft warning station
07/23/1991US5034723 Security cable and system for protecting electronic equipment
07/23/1991US5034722 Capacitance detection system
07/23/1991US5034579 Motion sensor
07/23/1991US5033827 Coded optical oscillator modulator
07/17/1991EP0436862A2 Magnetically releasable target lock
07/17/1991EP0436797A2 Outdoor surveillance dome with enhanced environmental aptitude
07/17/1991CA2034045A1 Double pulse magnetic markers
07/16/1991CA1286401C Security system for protecting information
07/13/1991CA2034026A1 Magnetically releasable target lock
07/10/1991EP0435885A1 Metallic glass alloys for mechanically resonant target surveillance systems.
07/10/1991EP0409880A4 Actuator and communication system
07/09/1991US5030941 Electronic article surveillance system incorporating an auxiliary sensor
07/09/1991US5030940 Electronic article surveillance tag and method for implementing same
07/03/1991EP0435538A2 Method and apparatus for electronic article surveillance
07/03/1991EP0435198A2 Electronic article surveillance system incorporating an auxiliary sensor
07/03/1991EP0435120A2 Passive infra-red movement detector
07/03/1991EP0435007A2 Surveillance device with a front panel of particularly black synthetic material non-transparent for visible light
07/03/1991EP0434949A1 Room monitoring system
07/03/1991EP0246301B1 Portable, batteryless, frequency divider consisting of inductor and diode
07/03/1991EP0237561A4 Audio and video digital recording and playback system
07/02/1991US5029291 Electromagnetic sensor element and methods and apparatus for making and using same
07/02/1991US5028997 Television camera apparatus
06/1991
06/30/1991WO1991010213A1 An autovehicle check system
06/30/1991CA2072600A1 Autovehicle check system
06/28/1991CA2032945A1 Electronic article surveillance system incorporating an auxiliary sensor
06/27/1991WO1991009388A1 Anti-theft clip with bursting fluid
06/27/1991WO1991009387A1 Deactivatable resonance label
06/27/1991WO1991009386A1 Motion detectors and security devices incorporating same
06/26/1991EP0434425A1 Security tag attachment
06/26/1991EP0434189A2 Digital motion verificatin circuit
06/26/1991CN2079779U Multifunctional anti-theft alarm
06/26/1991CN2079759U Low cost detector for doppler effect
06/25/1991US5027107 Frequency sensor
06/25/1991US5027106 Method and apparatus for electronic article surveillance
06/25/1991US5027105 Motion detectors and security devices incorporating same
06/25/1991US5027104 Vehicle security device
06/25/1991US5026990 Method and apparatus for installing infrared sensors in intrusion detection systems
06/22/1991WO1991009757A1 Golf cart control system
06/19/1991EP0432680A1 Monitoring system employing infrared image
06/18/1991US5025246 EAS tag with motion detection facility
06/18/1991US5025169 Sensor in IC formation
06/18/1991CA2005825A1 Motion detectors and security devices incorporating same
06/18/1991CA1285049C Single chip transponder device
06/18/1991CA1285043C Occupancy detectors etc.
06/13/1991WO1991008606A1 Automatic house-circuit control system
06/12/1991EP0431745A2 Sensitizer for ferromagnetic markers used with electromagnetic article surveillance systems
06/12/1991EP0431343A2 Audible tag for magnetic electronic article surveillance systems
06/12/1991EP0431341A2 Interfering signal rejection circuitry for electronic article surveillance system and method employing same
06/11/1991US5023714 Methods and systems for scanning and inspecting images
06/11/1991US5023600 Electronic article surveillance system with adaptiveness for synchronization with companion systems
06/11/1991US5023598 Digital signal processor for electronic article gates
06/11/1991US5023596 Bicycle alarm
06/11/1991US5023594 Electromagnetic radiation
06/11/1991US5022340 Portable mechanical burglar alarm
06/11/1991US5022244 Pin-clutch mechanism for theft-deterrent device
06/09/1991CA2029245A1 Sensitizer for ferromagnetic markers used with electromagnetic article surveillance systems
06/06/1991CA2020952A1 Audible tag for magnetic electronic article surveillance systems
06/05/1991EP0430226A2 Method and device for detecting approaching objects
06/05/1991EP0429561A1 Self calibrating apparatus for article monitoring system
06/05/1991CN2078465U Memory theft-proof alarm
06/05/1991CN2078464U Anti-burglar alarm for single or central monitoring
06/04/1991US5021916 Theft deterring security system for attachment to powered appliances
06/04/1991US5021779 For electrical appliances
06/04/1991US5021766 Intrusion detection system
06/04/1991US5021765 Security system having detector means sensitive to the proximity of at least one detected object
06/04/1991US5021663 Infrared detector
06/04/1991US5021660 Pyroelectric infrared detector and driving method therefor
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