AU6211299A - Public address apparatus - Google Patents

Public address apparatus

Info

Publication number
AU6211299A
AU6211299A AU62112/99A AU6211299A AU6211299A AU 6211299 A AU6211299 A AU 6211299A AU 62112/99 A AU62112/99 A AU 62112/99A AU 6211299 A AU6211299 A AU 6211299A AU 6211299 A AU6211299 A AU 6211299A
Authority
AU
Australia
Prior art keywords
sounders
pulse
public address
played
address apparatus
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.)
Abandoned
Application number
AU62112/99A
Other languages
English (en)
Inventor
Adrian Heddle
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.)
Vimpex Ltd
Original Assignee
Vimpex Ltd
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 Vimpex Ltd filed Critical Vimpex Ltd
Publication of AU6211299A publication Critical patent/AU6211299A/en
Abandoned 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
    • H04R27/00—Public address systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Fire Alarms (AREA)
  • Alarm Systems (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Prepayment Telephone Systems (AREA)
  • Meter Arrangements (AREA)
  • Massaging Devices (AREA)
AU62112/99A 1998-09-22 1999-09-21 Public address apparatus Abandoned AU6211299A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9820644.4A GB9820644D0 (en) 1998-09-22 1998-09-22 Public address apparatus
GB9820644 1998-09-22
PCT/GB1999/003141 WO2000018188A2 (en) 1998-09-22 1999-09-21 Public address apparatus

Publications (1)

Publication Number Publication Date
AU6211299A true AU6211299A (en) 2000-04-10

Family

ID=10839280

Family Applications (1)

Application Number Title Priority Date Filing Date
AU62112/99A Abandoned AU6211299A (en) 1998-09-22 1999-09-21 Public address apparatus

Country Status (7)

Country Link
EP (1) EP1123637B1 (https=)
JP (1) JP2002526007A (https=)
AT (1) ATE287193T1 (https=)
AU (1) AU6211299A (https=)
DE (1) DE69923203T2 (https=)
GB (1) GB9820644D0 (https=)
WO (1) WO2000018188A2 (https=)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858195A (en) * 1973-08-28 1974-12-31 Jab Co Inc Audio alarm system
DE2533330C3 (de) * 1975-07-25 1981-08-13 Siemens AG, 1000 Berlin und 8000 München Verfahren und Einrichtung zur Übertragung von Meßwerten in einem Brandmeldesystem
ATE30646T1 (de) * 1983-10-17 1987-11-15 Cerberus Ag Verfahren zur alarmsignalisation und einrichtung zur anwendung desselben.
US5887067A (en) * 1996-05-10 1999-03-23 General Signal Corporation Audio communication system for a life safety network

Also Published As

Publication number Publication date
GB9820644D0 (en) 1998-11-18
DE69923203D1 (de) 2005-02-17
JP2002526007A (ja) 2002-08-13
WO2000018188A2 (en) 2000-03-30
EP1123637A2 (en) 2001-08-16
WO2000018188A3 (en) 2000-06-08
DE69923203T2 (de) 2005-12-29
EP1123637B1 (en) 2005-01-12
ATE287193T1 (de) 2005-01-15

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase