GB1420043A - Method and apparatus for providing space security - Google Patents

Method and apparatus for providing space security

Info

Publication number
GB1420043A
GB1420043A GB3622873A GB3622873A GB1420043A GB 1420043 A GB1420043 A GB 1420043A GB 3622873 A GB3622873 A GB 3622873A GB 3622873 A GB3622873 A GB 3622873A GB 1420043 A GB1420043 A GB 1420043A
Authority
GB
United Kingdom
Prior art keywords
space
generator
frequency
amplifier
rooms
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
GB3622873A
Other languages
English (en)
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.)
ROMEN FASER KUNSTSTOFF
Original Assignee
ROMEN FASER KUNSTSTOFF
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 ROMEN FASER KUNSTSTOFF filed Critical ROMEN FASER KUNSTSTOFF
Publication of GB1420043A publication Critical patent/GB1420043A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
    • G08B13/1681—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using infrasonic detecting means, e.g. a microphone operating below the audible frequency range

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
GB3622873A 1972-07-31 1973-07-30 Method and apparatus for providing space security Expired GB1420043A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2237613A DE2237613C3 (de) 1972-07-31 1972-07-31 Verfahren und Vorrichtung zur Raumsicherung

Publications (1)

Publication Number Publication Date
GB1420043A true GB1420043A (en) 1976-01-07

Family

ID=5852236

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3622873A Expired GB1420043A (en) 1972-07-31 1973-07-30 Method and apparatus for providing space security

Country Status (9)

Country Link
US (1) US3898640A (enrdf_load_html_response)
JP (1) JPS4980896A (enrdf_load_html_response)
BR (1) BR7305723D0 (enrdf_load_html_response)
DE (1) DE2237613C3 (enrdf_load_html_response)
FR (1) FR2195017B3 (enrdf_load_html_response)
GB (1) GB1420043A (enrdf_load_html_response)
HU (1) HU167448B (enrdf_load_html_response)
IT (1) IT991881B (enrdf_load_html_response)
ZA (1) ZA734591B (enrdf_load_html_response)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119984A (en) * 1982-03-12 1983-11-23 Guglielmetti Electronique Infra-sonic detector and alarms including same
GB2146123A (en) * 1983-09-03 1985-04-11 Gen Electric Co Plc Apparatus for monitoring displacement
GB2193939A (en) * 1986-07-15 1988-02-24 Richard John Mace Vehicle protection apparatus
US6225902B1 (en) 1998-06-16 2001-05-01 Ncr Corporation Automatic teller machines

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4229811A (en) * 1978-11-09 1980-10-21 General Electric Company Intrusion detection method and apparatus
US4260980A (en) * 1979-04-30 1981-04-07 Bates Mitchell G Blind spot detector for vehicles
CH667932A5 (de) * 1985-05-24 1988-11-15 Cerberus Ag Nahbereichsueberwachungsgeraet mit schallquelle.
DE3611184C1 (de) * 1986-04-03 1987-09-03 Hirschmann Radiotechnik Verfahren und Vorrichtung zur Raumsicherung
EP0286897A1 (de) * 1987-04-09 1988-10-19 Cerberus Ag Verfahren und Vorrichtung zur Überwachung von geschlossenen Räumen
US5266905A (en) * 1992-05-29 1993-11-30 Audio Research Corporation Audio amplifier with amplified feedback
DE19740639C1 (de) * 1997-09-16 1999-07-22 Megamos F & G Sicherheit Ultraschall-Überwachungseinrichtung zum Überwachen eines Kfz-Innenraumes
DE19749747A1 (de) * 1997-11-11 1999-05-12 Grundig Ag Autradioalarmanlage
US20080224863A1 (en) * 2005-10-07 2008-09-18 Harry Bachmann Method for Monitoring a Room and an Apparatus For Carrying Out the Method
KR101297409B1 (ko) * 2009-12-14 2013-08-19 한국전자통신연구원 음장변화 측정을 이용한 보안 시스템 및 방법
US10741037B2 (en) * 2018-05-16 2020-08-11 Avaya Inc. Method and system for detecting inaudible sounds

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2071933A (en) * 1931-02-28 1937-02-23 Rca Corp Alarm system
US2031951A (en) * 1932-02-25 1936-02-25 Bell Telephone Labor Inc Burglar alarm system
US2400309A (en) * 1941-10-31 1946-05-14 Baldwin Co Oscillation generator
US2745089A (en) * 1954-01-19 1956-05-08 Isaac Ergas Burglar alarm and like warning systems
US2985018A (en) * 1956-10-22 1961-05-23 North American Aviation Inc Vibration wave distance measuring device
US3065455A (en) * 1958-10-07 1962-11-20 Wilfred Roth Detection apparatus
US3047850A (en) * 1959-08-12 1962-07-31 Mosler Res Products Inc Sonic space alarm
US3061829A (en) * 1959-12-14 1962-10-30 Diebold Inc Sonic alarm system
GB1169166A (en) * 1966-01-03 1969-10-29 Microtherm Ltd Improvements in or relating to Heating Apparatus
US3569924A (en) * 1969-03-19 1971-03-09 Dexter Mfg Co Ultrasonic detection system
US3725888A (en) * 1971-04-05 1973-04-03 Pyrotector Inc Detector system
US3721972A (en) * 1972-02-22 1973-03-20 Seabord Electric Ultrasonic burglar alarm system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119984A (en) * 1982-03-12 1983-11-23 Guglielmetti Electronique Infra-sonic detector and alarms including same
GB2146123A (en) * 1983-09-03 1985-04-11 Gen Electric Co Plc Apparatus for monitoring displacement
GB2193939A (en) * 1986-07-15 1988-02-24 Richard John Mace Vehicle protection apparatus
US6225902B1 (en) 1998-06-16 2001-05-01 Ncr Corporation Automatic teller machines

Also Published As

Publication number Publication date
US3898640A (en) 1975-08-05
DE2237613A1 (de) 1974-03-07
FR2195017A1 (enrdf_load_html_response) 1974-03-01
BR7305723D0 (pt) 1974-08-29
IT991881B (it) 1975-08-30
DE2237613B2 (enrdf_load_html_response) 1974-10-17
JPS4980896A (enrdf_load_html_response) 1974-08-05
DE2237613C3 (de) 1975-05-28
FR2195017B3 (enrdf_load_html_response) 1976-07-09
ZA734591B (en) 1974-11-27
HU167448B (enrdf_load_html_response) 1975-10-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee