GB2223869B - Apparatus for the transmission of alarm signals - Google Patents

Apparatus for the transmission of alarm signals

Info

Publication number
GB2223869B
GB2223869B GB8821267A GB8821267A GB2223869B GB 2223869 B GB2223869 B GB 2223869B GB 8821267 A GB8821267 A GB 8821267A GB 8821267 A GB8821267 A GB 8821267A GB 2223869 B GB2223869 B GB 2223869B
Authority
GB
United Kingdom
Prior art keywords
transmission
alarm signals
alarm
signals
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.)
Expired - Lifetime
Application number
GB8821267A
Other versions
GB8821267D0 (en
GB2223869A (en
Inventor
Patrick Thomas Geraghty
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.)
Tunstall Telecom Ltd
Original Assignee
Tunstall Telecom 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 Tunstall Telecom Ltd filed Critical Tunstall Telecom Ltd
Priority to GB8821267A priority Critical patent/GB2223869B/en
Publication of GB8821267D0 publication Critical patent/GB8821267D0/en
Publication of GB2223869A publication Critical patent/GB2223869A/en
Application granted granted Critical
Publication of GB2223869B publication Critical patent/GB2223869B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/009—Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/016—Personal emergency signalling and security systems

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Alarm Systems (AREA)
GB8821267A 1988-09-12 1988-09-12 Apparatus for the transmission of alarm signals Expired - Lifetime GB2223869B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8821267A GB2223869B (en) 1988-09-12 1988-09-12 Apparatus for the transmission of alarm signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8821267A GB2223869B (en) 1988-09-12 1988-09-12 Apparatus for the transmission of alarm signals

Publications (3)

Publication Number Publication Date
GB8821267D0 GB8821267D0 (en) 1988-10-12
GB2223869A GB2223869A (en) 1990-04-18
GB2223869B true GB2223869B (en) 1992-07-22

Family

ID=10643394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8821267A Expired - Lifetime GB2223869B (en) 1988-09-12 1988-09-12 Apparatus for the transmission of alarm signals

Country Status (1)

Country Link
GB (1) GB2223869B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3521491B2 (en) * 1994-08-31 2004-04-19 トヨタ自動車株式会社 Road-to-vehicle communication device
US6032035A (en) * 1997-05-21 2000-02-29 Elcombe Systems Limited Emergency response system
GB2324632B (en) 1997-10-20 1999-08-11 Steven Derek Pike Microphone unit
CA2251996A1 (en) * 1997-12-18 1999-06-18 Lucent Technologies Inc. Automatically locating individuals utilizing a combination of wireless media
US6236858B1 (en) 1998-06-30 2001-05-22 Avaya Technology Corp. Wireless terminal automatically alerting user upon wireless terminal entering a specified physical location
US6195560B1 (en) 1998-09-29 2001-02-27 Lucent Technologies Inc. Dynamic associative group pickup
US6198938B1 (en) 1998-09-29 2001-03-06 Avaya Technology Corp. Dynamic associative terminating extension groups
JP3949312B2 (en) 1999-03-11 2007-07-25 シャープ株式会社 Communication device position detection system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000630A1 (en) * 1978-09-15 1980-04-03 Ericsson Telefon Ab L M Installation for transmitting alarm signals

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000630A1 (en) * 1978-09-15 1980-04-03 Ericsson Telefon Ab L M Installation for transmitting alarm signals
GB2051444A (en) * 1978-09-15 1981-01-14 Ericsson Telefon Ab L M Installation for transmitting alarm signals

Also Published As

Publication number Publication date
GB8821267D0 (en) 1988-10-12
GB2223869A (en) 1990-04-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960912