Patents
Sitemap › G08 - Signalling › G08B - Signalling or calling systems; Order telegraphs; Alarm systems › G08B 27 - Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
Patents for G08B 27 - Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations (1,111)
12/2001
12/11/2001US6329904 Apparatus and method for providing weather and other alerts
11/2001
11/28/2001EP1158292A2 Aerosol hazard characterization and early warning network
11/21/2001CN1323104A Special area signal communication receiver
11/15/2001WO2001045386A3 System and method for broadcasting emergency warnings to radio and televison receivers in low power mode
10/2001
10/10/2001EP1143394A2 Geographically specific signal communications receiver
09/2001
09/25/2001US6295001 Tornado warning system
08/2001
08/01/2001EP1119837A1 Wireless home fire and security alarm system
07/2001
07/05/2001US20010006366 Apparatus and method for synchronizing visual/audible alarm units in an alarm system
07/03/2001US6255953 Tornado warning system
06/2001
06/26/2001US6252501 Message repeating apparatus and method
06/21/2001WO2001045386A2 System and method for broadcasting emergency warnings to radio and televison receivers in low power mode
05/2001
05/25/2001WO2001009755A3 Architecture for managing alerts
05/17/2001WO2001035361A1 Emergency messaging system
03/2001
03/28/2001EP1087353A1 Satellite warning system
03/20/2001US6205323 Jury paging system
03/20/2001US6204761 Weather alert system
03/20/2001CA2204217C Atmospheric hazard detector network
03/14/2001EP1070309A4 Method and apparatus for conveying audiovisual information
02/2001
02/27/2001US6194994 Apparatus and method for synchronizing visual/audible alarm units in an alarm system
02/22/2001WO2001013551A2 Radio system for warning the general population
02/13/2001US6188891 Radio communication apparatus and method for radio communication
02/08/2001WO2001009755A2 Architecture for managing alerts
01/2001
01/24/2001EP1070309A2 Method and apparatus for conveying audiovisual information
12/2000
12/26/2000US6167447 Multi-processor communication system wherein multiple sources can transmit information during the transmission of a single message
12/21/2000WO2000077755A1 Apparatus and method for providing weather and other alerts
11/2000
11/16/2000WO2000068914A1 Method and system for informing a multitude of individuals
11/16/2000WO2000021053A9 Wireless home fire and security alarm system
11/14/2000US6147594 Method and apparatus for conveying audiovisual information
11/02/2000WO2000065776A1 System and method for communication
09/2000
09/19/2000US6121874 Multi-station dangerous condition alarm system incorporating alarm and chirp origination feature
08/2000
08/29/2000US6112075 Method of communicating emergency warnings through an existing cellular communication network, and system for communicating such warnings
08/10/2000DE19904477A1 Arrangement for monitoring and alarm transmission for fire extinguishing systems, has switching arrangement with individually addressable communications modules
08/03/2000WO2000045607A1 Disaster alert by telephone system
07/2000
07/27/2000WO2000043964A1 Environmental condition detector with remote fire extinguisher locator system
07/13/2000DE19959625A1 Verfahren und Vorrichtung für die Nachrichtenwiederholung Method and apparatus for message repetition
07/04/2000US6084509 Annunciator alarm control device
06/2000
06/20/2000CA2106223C Video and audio alerting system for a television network
05/2000
05/17/2000EP1000422A1 Multi-station dangerous condition alarm system incorporating alarm and chirp origination feature
04/2000
04/18/2000CA2195194C Alerting device and system for abnormal situations
04/18/2000CA2180220C Community emergency telephone notification system
04/13/2000WO2000021053A1 Wireless home fire and security alarm system
03/2000
03/22/2000EP0986799A1 Alarm system
03/14/2000US6037996 Data broadcast receiving apparatus with screen display state control
02/2000
02/29/2000US6031578 Apparatus for receiving and decoding a broadcast signal
02/22/2000US6028644 Data broadcast receiving apparatus receiving a television broadcast signal with a superposed data broadcast signal
02/22/2000US6028514 Personal emergency, safety warning system and method
02/01/2000US6021177 Community alarm/notification device, method and system
01/2000
01/25/2000US6018371 Apparatus for receiving and decoding a broadcast signal
12/1999
12/14/1999US6002748 Disaster alert by telephone system
12/07/1999US5999224 Apparatus for receiving and decoding a broadcast signal
12/02/1999WO1999046927A3 Method and apparatus for conveying audiovisual information
11/1999
11/30/1999US5995553 Encoder/decoder for emergency alert system
11/17/1999EP0774147B1 Alerting device and system for abnormal situations
11/09/1999US5982275 Synchronized video/audio alarm system
10/1999
10/21/1999DE19817284A1 Hausinstallationssystem Building service system
10/20/1999EP0951002A2 Domestic installation system
10/20/1999CN2344825Y Intelligence warning information receiver and transmitter
09/1999
09/16/1999WO1999046927A2 Method and apparatus for conveying audiovisual information
09/15/1999EP0942402A2 System and signalling apparatus for broadcasting an emergency warning
09/07/1999US5949851 Home weather emergency warning system
08/1999
08/18/1999EP0935794A1 Communications system
08/17/1999US5939980 Telecommunity alarm system with a plurality of security surveillance modems
08/03/1999US5933078 Multi-station dangerous condition alarm system incorporating alarm and chirp origination feature
06/1999
06/22/1999US5914756 Apparatus for receiving and decoding a broadcast signal
05/1999
05/04/1999CA2143975C Modular emergency or weather alert interface system
03/1999
03/30/1999US5889468 Extra security smoke alarm system
02/1999
02/11/1999WO1999006980A1 Multi-station dangerous condition alarm system incorporating alarm and chirp origination feature
02/10/1999EP0896312A2 Multi-processor communication system
01/1999
01/19/1999US5861810 System and method for providing crime victims updated information and emergency alert notices
12/1998
12/30/1998CN2302564Y Alarming device for passenger train
12/10/1998WO1998055976A1 Alarm system
11/1998
11/11/1998CN1198562A Phonetic fire alarm device with UPS device
11/05/1998WO1998049661A1 Emergency messaging system
11/03/1998US5831526 Atmospheric hazard detector network
10/1998
10/21/1998EP0872114A2 Community emergency telephone notification system
08/1998
08/26/1998CN1191651A Community emergency telephone notification system
07/1998
07/14/1998US5781852 Alert receiver interface
05/1998
05/12/1998US5751210 Synchronized video/audio alarm system
05/07/1998WO1998019282A1 Communications system
05/05/1998US5749050 Automatic emergency alarm reception apparatus using specific frequency
04/1998
04/14/1998US5740532 Method of transmitting emergency messages in a RF communication system
03/1998
03/12/1998WO1998010392A1 Burglar alarm apparatus for neighborhoods
03/11/1998CN1175752A Picture computer monitoring system
02/1998
02/19/1998DE19633863A1 Burglary alarm system e.g. for buildings
02/19/1998DE19633861A1 Intruder or fire alarm monitoring system for number of objects, esp. houses
11/1997
11/12/1997CN1164719A Honeycomb fixing target wireless alarm system
11/11/1997US5686886 Electronic neighborhood watch alert system and unit therefor
09/1997
09/24/1997EP0797178A1 Telecommunity alarm system with several safety monitoring modems
09/16/1997US5668531 Synchronized alarm holding system
06/1997
06/25/1997CN1152842A Data broadcasting receiver
06/05/1997DE19700716A1 Alarm system with spread=spectrum modulation method
05/1997
05/21/1997EP0774147A1 Alerting device and system for abnormal situations
05/06/1997US5628050 Disaster warning communications system
04/1997
04/15/1997US5621383 Ring network system capable of detecting an alarm in each node
03/1997
03/20/1997WO1997001912A3 Community emergency telephone notification system
03/19/1997EP0763942A2 Data broadcast receiving apparatus
03/04/1997US5608375 Synchronized visual/audible alarm system
01/1997
01/16/1997WO1997001912A2 Community emergency telephone notification system
01/02/1997DE19523195A1 Expansion of surveillance alarm system
11/1996
11/21/1996WO1996036952A1 Communication system
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