BE878598A - Systeme d'alarme a detecteur acoustique - Google Patents

Systeme d'alarme a detecteur acoustique

Info

Publication number
BE878598A
BE878598A BE2/58046A BE2058046A BE878598A BE 878598 A BE878598 A BE 878598A BE 2/58046 A BE2/58046 A BE 2/58046A BE 2058046 A BE2058046 A BE 2058046A BE 878598 A BE878598 A BE 878598A
Authority
BE
Belgium
Prior art keywords
alarm system
acoustic detector
acoustic
detector
alarm
Prior art date
Application number
BE2/58046A
Other languages
English (en)
Inventor
J C Morris
R L Garrison
Original Assignee
Gte Sylvania Inc
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 Gte Sylvania Inc filed Critical Gte Sylvania Inc
Publication of BE878598A publication Critical patent/BE878598A/fr

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G08B13/1672—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using sonic detecting means, e.g. a microphone operating in the audio frequency range
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems, e.g. audible personal calling systems
    • G08B3/10—Audible signalling systems, e.g. audible personal calling systems using electric transmission; using electromagnetic transmission

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Burglar Alarm Systems (AREA)
  • Alarm Systems (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Amplifiers (AREA)
  • Emergency Alarm Devices (AREA)
BE2/58046A 1978-09-06 1979-09-05 Systeme d'alarme a detecteur acoustique BE878598A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/940,061 US4170769A (en) 1978-09-06 1978-09-06 Audio-detector alarm

Publications (1)

Publication Number Publication Date
BE878598A true BE878598A (fr) 1979-12-31

Family

ID=25474152

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/58046A BE878598A (fr) 1978-09-06 1979-09-05 Systeme d'alarme a detecteur acoustique

Country Status (9)

Country Link
US (1) US4170769A (fr)
JP (1) JPS6019839B2 (fr)
BE (1) BE878598A (fr)
CA (1) CA1122692A (fr)
DE (1) DE2935843A1 (fr)
FR (1) FR2435762A1 (fr)
GB (1) GB2031204B (fr)
IT (1) IT1122980B (fr)
NL (1) NL7906636A (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54150513A (en) * 1978-05-18 1979-11-26 Toyota Motor Corp Controller of quantity of secondary air fed
US4297677A (en) * 1979-12-10 1981-10-27 John S. Lewis Personal ambient sound referenced annunciator
JPS5783892A (en) * 1980-11-12 1982-05-25 Kogyo Gijutsuin Infinitesimal vibration detecting alarm unit
US4571579A (en) * 1984-02-13 1986-02-18 Woolley Edward N Swimming pool alarm
CH654169GA3 (fr) * 1984-04-25 1986-02-14
US4747085A (en) * 1984-05-01 1988-05-24 Gerald W. Dunegan Method and apparatus for monitoring swimming pools
GB2170008B (en) * 1985-01-19 1988-09-01 Benham Vibration detecting devices
FR2592980B1 (fr) * 1986-01-16 1989-04-28 Gas Jean Claude Vibreur sonore piezoelectrique adaptable sur le secteur d'alimentation electrique
US4929925A (en) * 1988-02-24 1990-05-29 Bodine David B Alarm system
US4974850A (en) * 1989-06-21 1990-12-04 Greg Hyman Vibration triggered game device
US5243327A (en) * 1992-03-25 1993-09-07 K-Ii Enterprises Div. Of Wrtb, Inc. Audible alarm for motion detection using dual mode transducer
US5959534A (en) * 1993-10-29 1999-09-28 Splash Industries, Inc. Swimming pool alarm
IT1289964B1 (it) * 1997-02-25 1998-10-19 Sgs Thomson Microelectronics Dispositivo elettronico autoprotetto ed a bassa emissione per il pilotaggio di un avvisatore acustico
AU2003903576A0 (en) * 2003-07-11 2003-07-24 Cochlear Limited Audio path diagnostics
US7116036B2 (en) * 2004-08-02 2006-10-03 General Electric Company Energy harvesting system, apparatus and method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739299A (en) * 1972-04-20 1973-06-12 Zenith Radio Corp Adjustable piezoelectric tunable oscillator for acoustic signal generating system

Also Published As

Publication number Publication date
FR2435762B3 (fr) 1981-08-14
GB2031204A (en) 1980-04-16
US4170769A (en) 1979-10-09
DE2935843A1 (de) 1980-03-20
IT1122980B (it) 1986-04-30
JPS5537696A (en) 1980-03-15
IT7925492A0 (it) 1979-09-05
GB2031204B (en) 1982-12-15
FR2435762A1 (fr) 1980-04-04
CA1122692A (fr) 1982-04-27
NL7906636A (nl) 1980-03-10
JPS6019839B2 (ja) 1985-05-18

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