HU167448B - - Google Patents

Info

Publication number
HU167448B
HU167448B HUFA946A HUFA000946A HU167448B HU 167448 B HU167448 B HU 167448B HU FA946 A HUFA946 A HU FA946A HU FA000946 A HUFA000946 A HU FA000946A HU 167448 B HU167448 B HU 167448B
Authority
HU
Hungary
Application number
HUFA946A
Other languages
Hungarian (hu)
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 filed Critical
Publication of HU167448B publication Critical patent/HU167448B/hu

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)
HUFA946A 1972-07-31 1973-06-26 HU167448B (enrdf_load_html_response)

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
HU167448B true HU167448B (enrdf_load_html_response) 1975-10-28

Family

ID=5852236

Family Applications (1)

Application Number Title Priority Date Filing Date
HUFA946A HU167448B (enrdf_load_html_response) 1972-07-31 1973-06-26

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)

Families Citing this family (15)

* 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
FR2523339A1 (fr) * 1982-03-12 1983-09-16 Guglielmetti Vg Electro Dispositif de detection a capteur volumetrique a infra-sons et procede de detection par infra-sons
GB8323685D0 (en) * 1983-09-03 1983-10-05 Gen Electric Co Plc Monitoring displacement
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
GB8617124D0 (en) * 1986-07-15 1986-08-20 Mace R J Vehicle protection apparatus
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
GB9812842D0 (en) 1998-06-16 1998-08-12 Ncr Int Inc Automatic teller machines
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

Also Published As

Publication number Publication date
GB1420043A (en) 1976-01-07
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

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