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)
05/1997
05/06/1997US5627362 Portable light source unit for simulating fires having an adjustable aperture
05/06/1997CA2109406C Battery detecting device for a radio pager
05/02/1997EP0770977A1 Method for enhancing the transmission security in radio alarm systems
04/1997
04/30/1997CN2253504Y Intellignet safety guarding controller for residence
04/29/1997US5625342 Plural-wavelength flame detector that discriminates between direct and reflected radiation
04/24/1997WO1997014975A1 Electric current supply monitor
04/24/1997DE19538754A1 Primary line monitoring method for alarm system
04/22/1997US5623172 Two wire PIR occupancy sensor utilizing a rechargeable energy storage device
04/16/1997EP0768630A1 Device for object protection and open-air ground surveillance
04/15/1997US5621394 Smoke alarm monitoring and testing system and method
04/15/1997US5621387 For housing components and preventing unwanted access
04/02/1997EP0765513A1 Self-diagnostic smoke detector
03/1997
03/27/1997WO1997011444A1 Security system
03/27/1997DE19626385A1 Event or condition message transmission system
03/19/1997CN2249933Y Inspecting interface of intellectual analog fire alarm controlling system
03/18/1997US5612676 Dual channel multi-spectrum infrared optical fire and explosion detection system
03/18/1997US5612674 High sensitivity apparatus and method with dynamic adjustment for noise
03/18/1997US5611620 Method and apparatus for testing heat detectors
03/05/1997EP0760464A1 Pre-processor apparatus and method
03/04/1997US5608377 Acoustic anti-tampering detector
02/1997
02/20/1997DE19530729A1 Monitoring inner space of motor vehicle
02/04/1997CA2101082C Gas sample chamber
01/1997
01/29/1997EP0755551A1 Fault monitoring event detection device
01/29/1997CN1141464A Transient control circuit for occupancy detector
01/28/1997US5598147 Smoke detecting apparatus for fire alarm
01/28/1997US5598141 Method of monitoring a vehicle interior
01/22/1997EP0755037A1 Photoelectric smoke detector and disaster monitoring system using the photoelectric smoke detector
01/21/1997CA2119127C Improved diffusion-type gas sample chamber
01/14/1997US5594422 Universally accessible smoke detector
01/14/1997US5594421 Method and detector for detecting a flame
01/07/1997US5592147 False alarm resistant fire detector with improved performance
12/1996
12/31/1996US5589824 Multi-sensor detection system
12/25/1996CN2243687Y Flash relay tester
12/24/1996US5587700 Portable security alarm unit
12/19/1996WO1996041318A1 Multi-signature fire detector
12/18/1996EP0748492A1 Method and device for sensing, identifying and protecting goods, particularly from theft
12/17/1996CA2040797C Interface for a supervised multi-input audible warning system
12/03/1996US5581237 Microwave intrusion detector with threshold adjustment in response to periodic signals
12/03/1996US5581236 Methods and apparatus for intrusion detection having improved immunity to false alarms
11/1996
11/28/1996WO1996037956A1 Multiple transmission channel group transmitter
11/28/1996CA2222496A1 Multiple transmission channel group transmitter
11/26/1996US5578996 Ambient condition detector
11/26/1996US5578988 Intrusion detection system having self-adjusting threshold
11/26/1996US5578987 Monitoring apparatus for an alarm device
11/21/1996WO1996036949A1 Advanced automotive automation and security system
11/21/1996WO1996033328A3 Advanced embedded code hopping system
11/19/1996US5576697 Fire alarm system
11/19/1996US5576689 Self testing personal response system with programmable timer values
11/12/1996US5574436 Smoke detector including an indicator for indicating a missing primary power source which is powered by a substantially nonremovable secondary power source
11/12/1996US5574435 Photoelectric type fire detector
11/12/1996US5574423 Self-diagnostic circuit for emergency lamphead
11/12/1996CA2010105C Method of operating an ionization smoke alarm and ionization smoke alarm
11/07/1996WO1996035194A1 Advanced method of indicating incoming threat level
11/07/1996DE19516092A1 Danger warning system with screened leads
11/07/1996CA2224515A1 Advanced method of indicating incoming threat level
10/1996
10/30/1996EP0740278A1 Alarm device
10/24/1996WO1996033478A1 Secure remote sensor/transmitter array system
10/24/1996WO1996033328A2 Advanced embedded code hopping system
10/24/1996WO1996033087A1 Continuous input cell for data acquisition circuits
10/24/1996WO1996033086A1 Ac input cell for data acquisition circuits
10/24/1996CA2220833A1 Advanced embedded code hopping system
10/24/1996CA2218525A1 Continuous input cell for data acquisition circuits
10/24/1996CA2218502A1 Ac input cell for data acquisition circuits
10/22/1996US5568129 Alarm device including a self-test reminder circuit
10/17/1996WO1996032705A1 Self-diagnostic smoke detector
10/16/1996EP0737951A1 Fail-safe signal transmitter and power supply device
10/16/1996EP0737869A2 Thermal object measuring apparatus, viewer survey system, distance detector, thermal object detecting method and apparatus
10/15/1996US5565853 Function control device managing energy consumption for a mobile system powered by a battery
10/15/1996US5565842 Alarm information transfer system for use in a digital transmission device
10/09/1996CN1132889A Method of detecting flame and flame detectr for carrying out the method
10/02/1996DE19510332A1 Schaltungsanordnung und Verfahren zum Testen von nicht intermittierenden Gebern Circuit arrangement and method for testing non-intermittent donors
09/1996
09/26/1996WO1996029609A1 Circuitry and process for testing non-intermittent signal generators
09/24/1996US5559499 Receiver for the reception of wirelessly transmitted information
09/17/1996US5557513 Checkout lane alert system and method for stores having express checkout lanes
09/17/1996US5557262 Fire alarm system with different types of sensors and dynamic system parameters
09/11/1996EP0624270B1 Receiver for the reception of wirelessly transmitted information
09/11/1996CA2170008A1 Self-diagnostic circuit for emergency lamphead
09/06/1996WO1996027175A1 Alarm sensor multiplexing
09/06/1996CA2222143A1 Alarm sensor multiplexing
09/03/1996US5552765 Smoke detector with individually stored range of acceptable sensitivity
09/03/1996US5552764 Alarm detecting system for redundancy configuration circuit
09/03/1996US5552763 Fire alarm system with sensitivity adjustment
08/1996
08/29/1996WO1996026511A1 Method of detecting systematic defects in quality control processes
08/28/1996EP0729124A1 Wireless hazard signalling system and method
08/28/1996EP0729123A1 Apparatus including a fire sensor and a non-fire sensor
08/28/1996CN1129833A Apparatus including a fire sensor and a non-fire sensor
08/28/1996CN1032666C Improved gas sample chamber
08/22/1996DE19506388C1 Verfahren zum Erkennen von systematischen Fehlern, insbesondere zur automatischen Störungserkennung bei Qualitätskontrollen, mittels mit Meßsensoren ausgestatteten Meßgeräten A process for recognizing systematic errors, in particular for automatic fault detection for quality control, by means of measuring devices equipped with measuring sensors
08/21/1996CN1129483A Communication system and method
08/15/1996WO1996025021A1 Occupancy sensor and method of operating same
08/14/1996EP0726553A1 Indicator having fault detection
08/14/1996CN1129042A Active IR intrusion detector
08/14/1996CN1128882A High sensitivity apparatus and method with dynamic adjustment for noise
08/13/1996US5546074 Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy
08/13/1996US5545891 Circuit for increasing the sensitivity of a photodiode to received infrared signals in response to changes in ambient light
08/06/1996US5543777 Smoke detector with individual sensitivity calibration and monitoring
07/1996
07/30/1996US5541580 For detecting the absence of a body
07/10/1996EP0721175A1 High sensitivity apparatus and method with dynamic adjustment for noise
07/09/1996US5534845 Advanced automotive automation and security system
07/09/1996US5533959 Wireless remote monitors employing reassurance tones
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