GB9813882D0 - Public address system having zone isolator circuits - Google Patents

Public address system having zone isolator circuits

Info

Publication number
GB9813882D0
GB9813882D0 GBGB9813882.9A GB9813882A GB9813882D0 GB 9813882 D0 GB9813882 D0 GB 9813882D0 GB 9813882 A GB9813882 A GB 9813882A GB 9813882 D0 GB9813882 D0 GB 9813882D0
Authority
GB
United Kingdom
Prior art keywords
public address
address system
isolator circuits
zone isolator
zone
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.)
Ceased
Application number
GBGB9813882.9A
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
Priority to GBGB9813882.9A priority Critical patent/GB9813882D0/en
Publication of GB9813882D0 publication Critical patent/GB9813882D0/en
Priority to EP19990305005 priority patent/EP0967833B1/en
Ceased legal-status Critical Current

Links

GBGB9813882.9A 1998-06-27 1998-06-27 Public address system having zone isolator circuits Ceased GB9813882D0 (en)

Priority Applications (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
EP19990305005 EP0967833B1 (en) 1998-06-27 1999-06-25 A method of operating a PA system having zone isolator circuits

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB9813882D0 true GB9813882D0 (en) 1998-08-26

Family

ID=10834486

Family Applications (1)

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

Country Status (2)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4327878B2 (en) * 2004-11-09 2009-09-09 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Loudspeaker system
GB2432091B (en) * 2005-10-20 2009-06-17 Protec Fire Detection Plc Improvements to a public address system having zone isolator circuits
FR2895203B1 (en) 2005-12-21 2008-02-29 Chantiers De L Atlantique Sa SOUND DEVICE AND SHIP COMPRISING THE DEVICE
DE102010028022A1 (en) * 2010-04-21 2011-10-27 Robert Bosch Gmbh Method and device for monitoring a loudspeaker line
DE102010047220B4 (en) * 2010-10-04 2012-07-05 Novar Gmbh Method for operating a voice announcement system
NL2006494C2 (en) 2011-03-25 2012-09-26 Astrea Intellectueel Eigendomsrecht B V Isolator device for passing through a signal.
WO2014013530A1 (en) * 2012-07-20 2014-01-23 Toa Corporation Public address system and monitoring device for a public address system
EP3441777B1 (en) 2017-08-11 2022-03-02 Carrier Corporation Earth fault localization

Family Cites Families (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
GB2299238B (en) * 1995-03-22 1997-06-11 Audix Communications Limited Loudspeaker and loudspeaker system

Also Published As

Publication number Publication date
EP0967833A3 (en) 2004-03-17
EP0967833B1 (en) 2012-10-24
EP0967833A2 (en) 1999-12-29

Similar Documents

Publication Publication Date Title
GB9801373D0 (en) Memory system
GB0023151D0 (en) Memory system
GB9605207D0 (en) Address block location
GB0030162D0 (en) Location system
AU2934699A (en) Demoludator circuits
GB9727375D0 (en) Delay circuits
IL138643A0 (en) Block system
EG22137A (en) Foaming system and detergent compositions containing the same
HK1024723A1 (en) Sewer system
GB9813882D0 (en) Public address system having zone isolator circuits
GB9807594D0 (en) Spirit chiller
GB9817757D0 (en) Breaking system
GB9816261D0 (en) Cross-care system
AU137291S (en) Bracket
AU137791S (en) Bracket
GB2321157B (en) Private circuits
GB9818713D0 (en) Eezinog plasterboard mounting system
GB2335042B (en) Amplification circuits
GB2337920B (en) Bracket
PL108478U1 (en) Three-axle bus
PL108897U1 (en) Three-axle bus
GB2330712B (en) Detection circuits
GB0024377D0 (en) Public address systems
GB9802214D0 (en) Disinfecting system
GB9825442D0 (en) Disinfecting system

Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)