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)
07/1996
07/04/1996WO1996020463A1 Method and device for sensing, identifying and protecting goods, particularly from theft
07/04/1996DE4446834A1 Wireless alarm transmission for building monitoring
07/03/1996CN1032231C Photoelectric type fire detector
07/02/1996US5532675 Alarm tester
07/02/1996US5532670 Method of indicating the threat level of an incoming shock to an electronically secured vehicle and apparatus therefore
06/1996
06/26/1996EP0718814A1 Method and device for flame detection
06/26/1996CN1125343A Fire detector and fire receiver
06/25/1996US5530433 Smoke detector including ambient temperature compensation
06/19/1996EP0717382A1 Motion detector device
06/12/1996EP0716403A1 Monitor apparatus of alarm apparatus
06/12/1996EP0715747A1 Process for generating smoke aerosols and pyrolysis device for carrying out said process
06/12/1996EP0715746A1 Communication system and method
06/12/1996CN1124533A Signal evaluation circuit for a movement detector
06/12/1996CN1124351A Heat detector
06/11/1996US5525962 Communication system and method
06/05/1996EP0714541A1 Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy
06/04/1996US5524099 Intrusion detector operating mode selection system
06/04/1996US5523744 Device for testing the operation of smoke detectors
06/04/1996US5523743 Self-diagnostic smoke detector
05/1996
05/29/1996EP0714158A2 Long life detector
05/23/1996WO1996015513A1 Alarm device
05/22/1996EP0712522A1 Smoke detection system
05/21/1996US5519756 Local alarm system tamper protection device
05/21/1996US5519388 Method and apparatus for active temperature compensation in a radiowave transmitter
05/15/1996CN1122486A Arrangement for the early detection of fires
05/14/1996US5517175 Potential adjusting sensor supervision circuit
05/09/1996WO1996013818A1 Fail-safe signal transmitter and power supply device
04/1996
04/17/1996EP0639262B1 Device for testing the operability of a system for detecting heat-radiating particles carried in a particle stream
04/09/1996CA2073366C System and method for remote telephonic station actuation
04/02/1996US5504473 Method of analyzing signal quality
03/1996
03/28/1996WO1996009613A1 A control and registration system
03/28/1996CA2199630A1 A control and registration system
03/26/1996US5502308 Diffusion-type gas sample chamber
03/13/1996EP0700557A1 Signal evaluation circuit for a movement detector
03/13/1996CN1118488A Transmission line-monitoring apparatus for use in fire alarm system
03/12/1996US5499023 Method of and apparatus for automated sensor diagnosis through quantitative measurement of one of sensor-to-earth conductance or loop resistance
03/12/1996US5499016 Intrusion alarm system
03/12/1996US5499012 Intrusion detector test circuit which automatically disables a detected-event indicator
03/07/1996WO1996007165A1 Self-contained, self-adjusting smoke detector and method of operating it
03/07/1996WO1996006865A1 Infrared intrusion detector with obscuring detecting apparatus
03/05/1996US5497149 Global security system
03/05/1996US5497144 Testing and adjustment of scattered-light smoke detectors
03/05/1996US5497009 Photoelectric smoke sensor and fire detecting system, and sensitivity testing method therefor
02/1996
02/28/1996EP0698262A1 Smoke detector sensitivity testing apparatus
02/22/1996WO1996005582A1 Smoke alarm system with standby battery and reactive primary power supply
02/21/1996EP0697684A1 Transmission line monitoring apparatus for use in a fire alarm system
02/20/1996US5493273 System for detecting perturbations in an environment using temporal sensor data
02/20/1996US5493272 Emergency lighting system with alarm for fire, gas and ambient air pollution with automatic monitoring and battery recharging
02/20/1996US5493271 Fire alarm system
02/15/1996WO1996004631A1 Fire detection device with disruptive parameter correction
02/15/1996WO1996004630A1 High reliability instrument system
02/15/1996WO1996004625A1 Fire detector comprising an analog sensor
02/15/1996WO1996004624A1 Fire detection system comprising an alarm control panel receiving an analog signal
02/14/1996EP0696787A1 Fire detecting device and method with air-pressure compensation
02/13/1996CA1338061C Automatic self-testing combustion products detector and smoke alarm
02/08/1996WO1996003730A1 Vehicle security system
02/06/1996US5489892 Infrared human detector not barred by an intervening obstruction
01/1996
01/31/1996EP0694859A2 Emergency information offering system
01/24/1996CN1115449A Setting device for fire alarm system
01/23/1996US5486811 Fire detection and extinguishment system
01/18/1996DE19524782A1 Automobile passenger space surveillance system for anti-theft alarm
01/18/1996DE19524781A1 Inside monitoring of motor vehicle using at least one sound receiver
01/16/1996US5485142 Remote monitor alarm system
01/11/1996WO1996000955A1 Monitor apparatus of alarm apparatus
01/09/1996US5483222 Multiple sensor apparatus and method
01/04/1996WO1996000430A1 Communication system and method
01/03/1996EP0634009A4 Improved diffusion-type gas sample chamber.
12/1995
12/28/1995WO1995035545A1 Checkout lane alert system and method for stores having express checkout lanes
12/24/1995CA2152551A1 Communication system and method
12/13/1995EP0687097A2 Arrangement for a head office for supervision of interventions
12/12/1995US5475365 Methods and apparatus for intrusion detection having improved immunity to false alarms
12/12/1995US5475363 Disaster prevention monitoring apparatus
12/07/1995WO1995033248A1 Active ir intrusion detector
12/05/1995US5473314 High sensitivity smoke detecting apparatus using a plurality of sample gases for calibration
12/05/1995US5473311 Dual sensing intrusion detection device
12/05/1995US5473253 Semiconductor sensor apparatus
12/05/1995US5473167 Sensitivity test system for photoelectric smoke detector
11/1995
11/28/1995US5471194 Event detection system with centralized signal processing and dynamically adjustable detection threshold
11/28/1995CA2047541C Paging receiver having a speaker and a led alternatively driven on receiving a call
11/23/1995DE4417632A1 Operating radio alarm installation for building intruder alarm system
11/15/1995CN1111922A Smoke simulator for scattered light detectors, process for regulating their sensitivity to smoke and use of the simulator
11/14/1995CA2066109C Device for monitoring the location of a mobile body
11/08/1995CN1111380A Multiple sensor apparatus and method
11/02/1995EP0680025A1 Fire alarm system and transmitter used therein
11/01/1995CN1111022A 火警系统 Fire alarm system
10/1995
10/31/1995US5463380 Paging receiver having a speaker and an LED alternatively driven on receiving a call
10/26/1995WO1995028692A1 Fault monitoring event detection device
10/24/1995US5461370 Fire alarm system
10/18/1995EP0677829A1 Fire alarm system
10/04/1995EP0675471A1 Setting device for fire alarm system
09/1995
09/28/1995WO1995026017A1 Signal evaluation circuit for a movement detector
09/27/1995CN1109193A Method for the prevention of false alarms in a fire alarm system and a fire alarm system for implementation of the method
09/26/1995US5454024 Cellular digital packet data (CDPD) network transmission system incorporating cellular link integrity monitoring
09/26/1995US5453749 Sensitivity measuring apparatus for use with a fire detector
09/26/1995US5453733 Method for processing an output signal from a detector of an intrusion detection system
09/21/1995DE4408268A1 Increasing reliability or radio alarm system
09/13/1995CN1108411A Smoke detector, adjustment apparatus and test apparatus for such a smoke detector
09/12/1995US5450062 Detection system with reduced sensitivity to pin diode effect
09/12/1995US5450059 Detection system and method for the verification of the functioning of the detection system by instantaneous comparison of the state of a node on a receptor and a node on a detector
09/06/1995CN1107986A Fire detecting apparatus
1 ... 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 ... 69