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BE886110A - Dispositif detecteur d'intrusion - Google Patents

Dispositif detecteur d'intrusion

Info

Publication number
BE886110A
BE886110A BE0/202760A BE202760A BE886110A BE 886110 A BE886110 A BE 886110A BE 0/202760 A BE0/202760 A BE 0/202760A BE 202760 A BE202760 A BE 202760A BE 886110 A BE886110 A BE 886110A
Authority
BE
Belgium
Prior art keywords
detector device
intrusion detector
intrusion
detector
Prior art date
Application number
BE0/202760A
Other languages
English (en)
Inventor
L Wold
Original Assignee
Honeywell 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 Honeywell Inc filed Critical Honeywell Inc
Publication of BE886110A publication Critical patent/BE886110A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H04R19/016—Electrostatic transducers characterised by the use of electrets for microphones
    • 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
    • G08B13/169—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using cable transducer means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Burglar Alarm Systems (AREA)
BE0/202760A 1979-11-13 1980-11-12 Dispositif detecteur d'intrusion BE886110A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9365379A 1979-11-13 1979-11-13

Publications (1)

Publication Number Publication Date
BE886110A true BE886110A (fr) 1981-03-02

Family

ID=22240062

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/202760A BE886110A (fr) 1979-11-13 1980-11-12 Dispositif detecteur d'intrusion

Country Status (5)

Country Link
BE (1) BE886110A (fr)
DE (1) DE3042358A1 (fr)
FR (1) FR2469721A1 (fr)
GB (1) GB2063537A (fr)
SE (1) SE8007903L (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0206458B1 (fr) * 1985-04-17 1992-07-01 Geoquip Security Systems Limited Capteur sensible aux vibrations
GB2182182B (en) * 1985-04-24 1989-06-28 Sound Special Services Limited Intrusion detecting device

Also Published As

Publication number Publication date
SE8007903L (sv) 1981-05-14
GB2063537A (en) 1981-06-03
FR2469721A1 (fr) 1981-05-22
DE3042358A1 (de) 1981-05-14

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