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)
10/1980
10/14/1980CA1087724A1 Ultrasonic wave watching device of moving object detecting type
10/14/1980CA1087715A1 Multi-satellite intrusion alarm control system
10/07/1980US4227189 Alarm activating device
10/07/1980US4227188 Intrusion alarm control system
10/07/1980US4227052 Method and means for reducing false alarm rates in security systems
10/07/1980CA1087286A1 Electromagnetic radiation detector with large area sensing medium
10/02/1980WO1980002096A1 Video monitoring system and method
10/01/1980EP0016545A1 Intruder alarm system responsive to vibration
10/01/1980EP0016025A1 Conduits protected against sabotage, for security installations and installation thereof within a protection network
10/01/1980EP0015965A1 Device for controlling the closure of folding doors.
09/1980
09/30/1980US4225881 Discrete surveillance system and method for making a component thereof
09/30/1980US4225859 Method and apparatus for monitoring sound-conducting media
09/30/1980US4225858 Doppler intrusion detector with dual phase processing
09/30/1980US4225857 Spring loop door and window alarm switch
09/30/1980US4225786 Infrared detection system
09/23/1980US4224608 Single terminal detection system
09/23/1980US4224607 Intruder detector system having improved uniformity of detection sensitivity
09/23/1980CA1086400A1 Microwave intrusion sensing units and antenna therefor
09/23/1980CA1086399A1 Intrusion alarm
09/16/1980US4223304 Vibration responsive intruder alarm systems
09/16/1980US4223303 Alarm devices for interconnected multi-device systems
09/16/1980US4222517 Magnetic marker
09/16/1980CA1085943A1 Method to prevent unauthorized use of cassette tape recorders and a device according to the method
09/09/1980US4222043 Portable self-contained security system
09/09/1980US4222042 Door alarm
09/03/1980EP0014825A2 Optical apparatus for passive infrared movement detector
09/03/1980EP0014727A1 Alarm device for a lockable container such as a suitcase, travel bag, brief-case, etc.
09/03/1980EP0014714A1 Alarm device partly mobile with protection against failure to operate, breakdown, sabotage and false alarm
09/02/1980US4220949 Electric fence monitor and alarm apparatus and method
09/02/1980US4220831 Intrusion sensing device
08/1980
08/26/1980CA1084618A1 Phase difference sensitive movement detectors
08/26/1980CA1084604A1 Four wire multi-satellite intrusion alarm control system with tamper switch
08/19/1980US4218763 Electronic alarm signaling system
08/19/1980US4218677 Detecting loop digital interface circuitry
08/19/1980CA1084138A1 Remote signalling apparatus, particularly suitable for anti-theft and anti-burglary protection
08/19/1980CA1084137A1 Method and apparatus for electronic surveillance of precisely defined control zone
08/12/1980US4217606 Optical monitoring facility and the method for using it
08/07/1980WO1980001617A1 Alarm device for doors
08/06/1980EP0014009A1 Security fence
08/05/1980US4216469 Alarm system for detecting changes in load on terrain
07/1980
07/29/1980US4215342 Merchandise tagging technique
07/29/1980US4215271 Adjustable mirror mount for photoelectric intrusion detector
07/29/1980CA1082788A1 Self-contained presence detector
07/23/1980EP0013484A1 Alarm system and method for detecting the movement of an object away from a predetermined position
07/15/1980US4213196 Ultrasonic type motion detector
07/15/1980US4213163 Video-tape recording
07/15/1980US4213123 Integral enable-disable means for guided wave radar intrusion detector system portals
07/15/1980US4213122 Intrusion detection system
07/15/1980US4212208 Vibration detector incorporating two or more seismic elements
07/15/1980CA1081839A1 Vehicle-type discriminator
07/15/1980CA1081818A1 Anti-robbed and anti-stolen safety suitcase
07/08/1980US4212007 Combined burglar frightening device and alarm
07/08/1980US4212005 Movement detector
07/08/1980US4212002 Method and apparatus for selective electronic surveillance
07/08/1980US4211923 Fluid tight ultrasonically welded photoelectric device
06/1980
06/25/1980EP0012280A1 Tamperproof intrusion detector
06/25/1980EP0012155A1 Intruder alarm device
06/24/1980US4209777 Non-compromisable intrusion sensor circuit
06/24/1980US4209776 Vibratory and ultrasonic fence intruder detection system
06/12/1980WO1980001214A1 Event indication and indication system
06/11/1980EP0012092A1 Security system
06/11/1980EP0011744A1 Light grid arrangement
06/10/1980US4207561 Intruder alarm arrangement for an optical communication system
06/10/1980US4207560 R F Area intruder detection and tracking system
06/10/1980CA1079404A1 Method and apparatus for identifying objects
06/03/1980US4206453 Method and apparatus for electronic surveillance
06/03/1980US4206452 Tension cord burglar-alarm
06/03/1980US4206451 Intrusion detection system
06/03/1980US4206439 Alerting system and arming/disarming apparatus therefor
05/1980
05/28/1980EP0011451A1 Security alarm systems
05/28/1980EP0011444A2 Security system
05/27/1980USRE30288 Intrusion detection system
05/27/1980US4205328 Apparatus for controlling a power source for an electrical alarm or indicator
05/27/1980US4205305 Burglar alarm
05/27/1980US4205227 Single junction emitter array
05/20/1980US4204202 Security attache case with automatic alarm system
05/20/1980US4203383 Burglar alarm
05/14/1980EP0010870A1 Electronic lock and key, and an alarm system incorporating same
04/1980
04/22/1980US4199753 Burglar alarms
04/22/1980US4199218 Warm light reflector
04/16/1980EP0009901A1 Alarm system
04/15/1980US4198656 Video sequencer-processor
04/15/1980US4198653 Video alarm systems
04/15/1980US4198618 Circuit arrangement for ultrasonic burglar security systems operating in accordance with the Doppler principle
04/15/1980US4197856 Ultrasonic respiration/convulsion monitoring apparatus and method for its use
04/15/1980CA1075792A1 Multi-mode intrusion alarm system
04/08/1980US4197530 Passive intrusion detection system
04/08/1980US4197529 Intrusion detection apparatus
04/08/1980US4197528 Movement-detecting processing circuit for an ultrasonic detection system
04/08/1980US4197479 Intrusion detecting sensor assembly using a piezoelectric bender
04/08/1980US4196890 Security fence
04/08/1980US4196789 Protection by underwater sound waves
04/03/1980WO1980000630A1 Installation for transmitting alarm signals
04/03/1980WO1980000629A1 Silent wearable signalling device for tactile means to prevent false triggering
04/01/1980US4196429 Motion detector
04/01/1980US4196423 Acoustic emission intrusion detector
04/01/1980US4196422 Intrusion alarm system
04/01/1980CA1074905A1 Camera and housing
03/1980
03/25/1980US4195290 Electrical receptacle for use in alarm system
03/25/1980US4195234 Infrared intrusion alarm system with temperature responsive threshold level
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