EP0967833A3 - Beschallungssystem mit Gebietsisolatorsschaltungen - Google Patents

Beschallungssystem mit Gebietsisolatorsschaltungen 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
English (en)
French (fr)
Other versions
EP0967833A2 (de
EP0967833B1 (de
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/de
Publication of EP0967833A3 publication Critical patent/EP0967833A3/de
Application granted granted Critical
Publication of EP0967833B1 publication Critical patent/EP0967833B1/de
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; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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)
  • Alarm Systems (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
EP19990305005 1998-06-27 1999-06-25 Ein Verfahren zum Betreiben eines Beschallungssystems mit Gebietsisolatorschaltungen Expired - Lifetime EP0967833B1 (de)

Applications Claiming Priority (2)

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

Publications (3)

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

Family

ID=10834486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990305005 Expired - Lifetime EP0967833B1 (de) 1998-06-27 1999-06-25 Ein Verfahren zum Betreiben eines Beschallungssystems mit Gebietsisolatorschaltungen

Country Status (2)

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

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.
EP2875652B1 (de) * 2012-07-20 2019-12-04 Toa Corporation Öffentliches adresssystem lautsprecheranlage und überwachungsvorrichtung für eine öffentliches adresssystem lautsprecheranlage
EP3441777B1 (de) 2017-08-11 2022-03-02 Carrier Corporation Erdschlussfehlerlokalisierung

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
EP0967833A2 (de) 1999-12-29
GB9813882D0 (en) 1998-08-26
EP0967833B1 (de) 2012-10-24

Similar Documents

Publication Publication Date Title
AU2565499A (en) Electrical fault detection system
AU9801298A (en) Porous silicon oxycarbide integrated circuit insulator
WO2002028143A3 (de) Verfahren zum betrieb eines hörgerätesystems sowie hörgerätesystem
EP1396918A3 (de) Erdschlussüberwachungssystem
AU5457896A (en) Low cost apparatus for detecting arcing faults and circuit breaker incorporating same
EP0936532A3 (de) Fernsteuerungsverfahren für Leistungssparfunktion
AU2665697A (en) Electronic message forwarding system
MY127869A (en) Asymmetric satellite-based internet service
AU2001261275A1 (en) Systems and methods for isolating faults in computer networks
AU1077899A (en) Electronic audio connection system and methods for providing same
NO984928D0 (no) Pyrazinontrombininhibitorer
FI974047A7 (fi) Lähdereititysmenetelmä nopean yhteyden uudelleenjärjestelylle vasteena aikaisin saapuville vikaraporttiviesteille
EP0841570A3 (de) Automatische Erkennung von kurzgeschlossenen Lautsprechern in Kraftfahrzeugaudiosystemen
EP0967833A3 (de) Beschallungssystem mit Gebietsisolatorsschaltungen
AU4924399A (en) Circuit and methods for compensating for imperfections in amplification chains in a linc or other amplification system
AU2002213225A1 (en) System and method for detection of zero current condition
GB9801484D0 (en) Dynamic redirection
SE9801906D0 (sv) Detektering av fel på överföringslinjer hos ett bipolärt högspänt likströmssystem
GB2407442A (en) Self-test system
WO2002067427A3 (en) Low power wired or
AU2003278616A1 (en) Temperature monitoring system for electrical equipment
EP1182748A3 (de) Lautsprecheranschlussklemme für multiple Konfigurationen
AU2001280235A1 (en) Method and system for establishing connections between terminals connected to network environments having different ip-addressing schemes
SE9800810D0 (sv) Identifieringsanordning
WO2002052760A3 (en) Method and apparatus for efficient link redundancy

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20040915

AKX Designation fees paid

Designated state(s): GB NL

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

17Q First examination report despatched

Effective date: 20071005

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: H04R 29/00 20060101AFI20120808BHEP

Ipc: H04R 27/00 20060101ALN20120808BHEP

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): GB NL

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20130725

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20170620

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20170713

Year of fee payment: 19

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20180701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180625

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180625