GB1278836A - Voice alerting radio detection alarm system - Google Patents

Voice alerting radio detection alarm system

Info

Publication number
GB1278836A
GB1278836A GB4823169A GB4823169A GB1278836A GB 1278836 A GB1278836 A GB 1278836A GB 4823169 A GB4823169 A GB 4823169A GB 4823169 A GB4823169 A GB 4823169A GB 1278836 A GB1278836 A GB 1278836A
Authority
GB
United Kingdom
Prior art keywords
alarm system
oct
detection alarm
radio detection
transmitter
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
Application number
GB4823169A
Inventor
John G Ovens
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1278836A publication Critical patent/GB1278836A/en
Expired 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
    • G08B25/01—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
    • G08B25/012—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 using recorded signals, e.g. speech

Landscapes

  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

1278836 Automatic alarm systems J G OVENS 1 Oct 1969 [17 Oct 1968] 48231/69 Headings G4H and G4N In an automatic alarm system each station is provided with speech reproduction equipment feeding a radio transmitter, the system being turned on for a predetermined time following the occurrence of an event such as fire or burglary. As described, a tape recorder may carry the address of the local station together with information as to access to the building for transmission by radio to a police car. The alarm may be initiated by the disturbance of a stretched nylon line, by change in temperature or pressure or by photo-electric, sonic or radar devices. The transmitter may be FM, transistorized 150-170 MHz and may operate for a period determined by a thermal relay, mechanical or electronic timer.
GB4823169A 1968-10-17 1969-10-01 Voice alerting radio detection alarm system Expired GB1278836A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76838268A 1968-10-17 1968-10-17

Publications (1)

Publication Number Publication Date
GB1278836A true GB1278836A (en) 1972-06-21

Family

ID=25082334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4823169A Expired GB1278836A (en) 1968-10-17 1969-10-01 Voice alerting radio detection alarm system

Country Status (4)

Country Link
CA (1) CA938676A (en)
DE (1) DE1952264A1 (en)
FR (1) FR2020950A1 (en)
GB (1) GB1278836A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156120A (en) * 1984-02-23 1985-10-02 Alarmcall Security Systems Lim Alarm system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156120A (en) * 1984-02-23 1985-10-02 Alarmcall Security Systems Lim Alarm system

Also Published As

Publication number Publication date
CA938676A (en) 1973-12-18
DE1952264A1 (en) 1970-06-04
FR2020950A1 (en) 1970-07-17

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Legal Events

Date Code Title Description
PLNP Patent lapsed through nonpayment of renewal fees