EP0967833A3 - Système d'annonce en public avec circuits isolateurs de zone - Google Patents

Système d'annonce en public avec circuits isolateurs de zone Download PDF

Info

Publication number
EP0967833A3
EP0967833A3 EP99305005A EP99305005A EP0967833A3 EP 0967833 A3 EP0967833 A3 EP 0967833A3 EP 99305005 A EP99305005 A EP 99305005A EP 99305005 A EP99305005 A EP 99305005A EP 0967833 A3 EP0967833 A3 EP 0967833A3
Authority
EP
European Patent Office
Prior art keywords
isolator circuits
signal
circuit faults
fault
zone isolator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99305005A
Other languages
German (de)
English (en)
Other versions
EP0967833B1 (fr
EP0967833A2 (fr
Inventor
Eric c/o Protec Fire Detection Plc Priest
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Protec Fire Detection PLC
Original Assignee
Protec Fire Detection PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Protec Fire Detection PLC filed Critical Protec Fire Detection PLC
Publication of EP0967833A2 publication Critical patent/EP0967833A2/fr
Publication of EP0967833A3 publication Critical patent/EP0967833A3/fr
Application granted granted Critical
Publication of EP0967833B1 publication Critical patent/EP0967833B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/007—Monitoring arrangements; Testing arrangements for public address systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Alarm Systems (AREA)
  • Circuit For Audible Band Transducer (AREA)
EP19990305005 1998-06-27 1999-06-25 Procédé d'utilisation d'un système d'annonce en public avec circuits isolateurs de zone Expired - Lifetime EP0967833B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9813882.9A GB9813882D0 (en) 1998-06-27 1998-06-27 Public address system having zone isolator circuits
GB9813882 1998-06-27

Publications (3)

Publication Number Publication Date
EP0967833A2 EP0967833A2 (fr) 1999-12-29
EP0967833A3 true EP0967833A3 (fr) 2004-03-17
EP0967833B1 EP0967833B1 (fr) 2012-10-24

Family

ID=10834486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990305005 Expired - Lifetime EP0967833B1 (fr) 1998-06-27 1999-06-25 Procédé d'utilisation d'un système d'annonce en public avec circuits isolateurs de zone

Country Status (2)

Country Link
EP (1) EP0967833B1 (fr)
GB (1) GB9813882D0 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101422052B (zh) * 2004-11-09 2011-10-05 罗伯特·博世有限公司 公共广播系统
GB2432091B (en) * 2005-10-20 2009-06-17 Protec Fire Detection Plc Improvements to a public address system having zone isolator circuits
FR2895203B1 (fr) * 2005-12-21 2008-02-29 Chantiers De L Atlantique Sa Dispositif de sonorisation et navire comportant le dispositif
DE102010028022A1 (de) * 2010-04-21 2011-10-27 Robert Bosch Gmbh Verfahren und Einrichtung zur Überwachung einer Lautsprecherlinie
DE102010047220B4 (de) * 2010-10-04 2012-07-05 Novar Gmbh Verfahren zum Betreiben einer Sprachdurchsageanlage
NL2006494C2 (en) 2011-03-25 2012-09-26 Astrea Intellectueel Eigendomsrecht B V Isolator device for passing through a signal.
WO2014013530A1 (fr) * 2012-07-20 2014-01-23 Toa Corporation Système d'avertissement et de signalisation public, et dispositif de surveillance pour un système d'avertissement et de signalisation public
ES2916348T3 (es) 2017-08-11 2022-06-30 Carrier Corp Localización de fallos a tierra

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989908A (en) * 1975-06-26 1976-11-02 General Signal Corporation Speaker supervision in a public address system
DE3627960C1 (en) * 1986-08-18 1987-09-03 Philips Patentverwaltung Monitoring device for loudspeaker installations
GB2299238A (en) * 1995-03-22 1996-09-25 Audix Communications Limited Loudspeaker with means to prevent drawing excessive current

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989908A (en) * 1975-06-26 1976-11-02 General Signal Corporation Speaker supervision in a public address system
DE3627960C1 (en) * 1986-08-18 1987-09-03 Philips Patentverwaltung Monitoring device for loudspeaker installations
GB2299238A (en) * 1995-03-22 1996-09-25 Audix Communications Limited Loudspeaker with means to prevent drawing excessive current

Also Published As

Publication number Publication date
GB9813882D0 (en) 1998-08-26
EP0967833B1 (fr) 2012-10-24
EP0967833A2 (fr) 1999-12-29

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