Patents
Sitemap › G08 - Signalling › G08B - Signalling or calling systems; Order telegraphs; Alarm systems › G08B 25 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
Patents for G08B 25 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems (15,949)
02/1985
02/13/1985EP0023511B1 Process and device for detecting and interpreting a distress signal
02/12/1985US4499455 Alarm circuit interface units
02/05/1985US4498077 Annunciator
02/05/1985US4498075 Fault indicator apparatus for a multi-zone intrusion system
01/1985
01/22/1985CA1181506A1 Security system with multiple levels of access
01/15/1985US4494111 Frequency agile security apparatus
01/15/1985CA1181152A1 System for producing an operating signal
01/08/1985US4492820 Telephone alarm system
01/08/1985CA1180829A1 Lift control system
01/02/1985EP0129563A1 Data transmission system with alarm
01/02/1985CA1180413A1 Central monitor for home security system
01/01/1985US4491828 Two-wire multi-zone alarm system
12/1984
12/19/1984EP0128549A1 Alarm installation
12/11/1984US4488003 Data communication system
12/11/1984CA1179415A1 Hall effect alarm pull station
11/1984
11/28/1984EP0126704A2 Annunciator
11/27/1984US4485373 Automatic security monitoring system
11/27/1984CA1178678A1 Bidirectional, interactive fire detection system
11/21/1984EP0125387A1 Risk signalling method and apparatus
11/20/1984US4484183 Method and system for detection of the presence, removal, or absence of a metal body
11/14/1984EP0125011A1 Burglar alarm system
10/1984
10/31/1984EP0123206A2 Telephone set with a call number memory
10/23/1984CA1176724A1 System for test sequence annunciation
10/16/1984US4477800 Security system
10/16/1984US4477799 Security apparatus with alarm search and verification capability
10/10/1984EP0121048A1 Circuit arrangement for the interference level control of detectors, arranged in a danger detection device
10/09/1984US4476488 Control circuit for CATV alert system
09/1984
09/25/1984US4473821 Personal acoustic alarm system
09/18/1984US4472069 Minature electronic apparatus having alarm sound generating function
09/18/1984CA1174746A1 Sheltered housing schemes communications system
09/04/1984US4470047 Bidirectional, interactive fire detection system
09/04/1984CA1173981A1 Telephone alarm system
08/1984
08/28/1984US4468664 In a zone indication system
08/28/1984US4468656 Emergency signalling unit and alarm system for rescuing endangered workers
08/08/1984EP0115116A1 Diagnostic device for colour sorting apparatus
08/08/1984EP0114806A1 Improvements in security warning devices
07/1984
07/31/1984US4463345 Seed flow monitor
07/31/1984CA1171985A1 Automatic telephonic user emergency message transmitting apparatus
07/31/1984CA1171935A1 Fire alarm signal station
07/24/1984US4462022 Security system with radio frequency coupled remote sensors
07/24/1984CA1171514A1 Supervised wireless security system
07/24/1984CA1171462A1 Device for automatically monitoring an independent current supply
07/18/1984EP0113533A2 Television receiver
07/10/1984US4459583 Alarm system
07/10/1984US4459582 Local control apparatus for central station alarm system
07/10/1984CA1170744A1 Seed flow monitor multiplexing system
06/1984
06/27/1984EP0111982A1 Integrated security system having a multiprogrammed controller
06/20/1984EP0111178A1 Control device with several detectors connected in chain form to a signal line
06/05/1984US4453155 Fire protection for wood shingle roof
05/1984
05/15/1984CA1167544A1 Alarm transmission system
05/10/1984WO1984001873A1 Data transmission system with alarm
05/02/1984EP0107390A1 Supervised wireless security system
05/01/1984US4446458 Monitoring and control system
05/01/1984US4446454 Home security system
04/1984
04/10/1984US4442426 Signal transmission
04/10/1984US4442320 Remote subscriber interaction system
04/03/1984US4441100 Electrical circuits
03/1984
03/20/1984CA1164052A1 Intrusion alarm system for vehicles
03/07/1984EP0102229A1 Alarm system
03/06/1984US4435698 Circuit arrangement for the transmission of measurements to a central, especially in a fire alarm system
02/1984
02/22/1984EP0101182A2 Piping system surveillance apparatus
02/15/1984EP0100523A1 Method for information transmission on a single communication channel, and application of this method, particularly in devices constituting an alarm system
02/02/1984WO1984000428A1 Improvements in security warning devices
01/1984
01/24/1984US4427974 Local control apparatus for central station alarm system
01/18/1984EP0098552A1 Method and device for automatically demanding signal measure values and signal identification in an alarm installation
01/17/1984CA1160713A1 Variable timing system
01/11/1984EP0097742A1 Theft detection system and method
01/10/1984CA1160311A1 Central station alarm reporting system
01/03/1984US4424510 Fire alarm system
12/1983
12/28/1983EP0096886A1 Alarm system
12/27/1983US4423410 Two-wire multi-zone alarm system
12/13/1983US4420745 Security system
12/13/1983US4419900 Machine health monitoring system
11/1983
11/30/1983EP0095337A2 Emergency access method in centralized monitoring system
11/02/1983EP0093095A2 A method and an apparatus for identifying a detector giving an alarm in a loop circuit having a predetermined number of detectors connected in parallel
10/1983
10/25/1983US4412211 System for test sequence annunciation
10/19/1983EP0091581A2 Crossed beam high frequency anti-theft system
10/18/1983US4410884 Alarm system
10/18/1983US4410883 Multiple annunciation system
10/18/1983CA1155550A1 Apparatus for the storage and transfer of information
10/05/1983EP0090399A1 Direct current signalling installation
09/1983
09/28/1983EP0089607A1 Mains-wired monitoring and security system
09/27/1983US4406995 Base station for monitoring call boxes
09/20/1983US4405919 Method of fire detection and fire detection installation
09/14/1983EP0088524A1 Intruder alarm system
09/13/1983US4404549 Latching portable personal security alarm
09/13/1983US4404548 Method for transmitting measuring values in a fire alarm system and apparatus for the performance of the aforesaid method
09/06/1983US4403341 Emergency information communicating device
09/06/1983CA1153441A1 Apparatus for monitoring and signalling system
08/1983
08/30/1983US4401976 Multiple sensor interconnected alarm system responsive to different variables
08/23/1983US4400694 Microprocessor base for monitor/control of communications facilities
08/23/1983CA1152600A1 Monitoring and signalling system
08/09/1983US4398184 Intrusion alarm system for buildings utilizing the building structure as a communications path for alarm signals or for security system activation signals
08/02/1983US4396910 Coded security switch
07/1983
07/27/1983EP0084429A1 Automatic receiver gain control in centralized monitor system
07/19/1983US4394655 Bidirectional, interactive fire detection system
07/19/1983CA1150359A1 Alarm device with a condition sensor element
07/07/1983WO1983002350A1 Method and systems for radio telecasting for the control of a signalling or help device
07/05/1983US4392132 Wireless signaling system
06/1983
06/29/1983EP0082729A2 Perimeter security system
1 ... 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160