CH556071A - Installation de surveillance d'une enceinte. - Google Patents

Installation de surveillance d'une enceinte.

Info

Publication number
CH556071A
CH556071A CH449772A CH449772A CH556071A CH 556071 A CH556071 A CH 556071A CH 449772 A CH449772 A CH 449772A CH 449772 A CH449772 A CH 449772A CH 556071 A CH556071 A CH 556071A
Authority
CH
Switzerland
Prior art keywords
speaker
surveillance installation
surveillance
installation
Prior art date
Application number
CH449772A
Other languages
English (en)
French (fr)
Inventor
D M P Lecuyer
Original Assignee
Francais Detection Eletr
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 Francais Detection Eletr filed Critical Francais Detection Eletr
Publication of CH556071A publication Critical patent/CH556071A/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
    • G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
    • 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
    • G08B13/1663—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using seismic sensing means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Burglar Alarm Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
CH449772A 1971-04-07 1972-03-27 Installation de surveillance d'une enceinte. CH556071A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7112290A FR2133079A5 (OSRAM) 1971-04-07 1971-04-07

Publications (1)

Publication Number Publication Date
CH556071A true CH556071A (fr) 1974-11-15

Family

ID=9074910

Family Applications (1)

Application Number Title Priority Date Filing Date
CH449772A CH556071A (fr) 1971-04-07 1972-03-27 Installation de surveillance d'une enceinte.

Country Status (12)

Country Link
BE (1) BE781767A (OSRAM)
CA (1) CA970869A (OSRAM)
CH (1) CH556071A (OSRAM)
DE (1) DE2216319C3 (OSRAM)
ES (1) ES401536A1 (OSRAM)
FR (1) FR2133079A5 (OSRAM)
GB (1) GB1391697A (OSRAM)
IT (1) IT950969B (OSRAM)
LU (1) LU65112A1 (OSRAM)
NL (1) NL7204620A (OSRAM)
OA (1) OA03991A (OSRAM)
SE (1) SE373220B (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0206458B1 (en) * 1985-04-17 1992-07-01 Geoquip Security Systems Limited Vibration-sensitive transducer

Also Published As

Publication number Publication date
NL7204620A (OSRAM) 1972-10-10
DE2216319C3 (de) 1979-05-31
OA03991A (fr) 1979-09-15
CA970869A (en) 1975-07-08
SE373220B (OSRAM) 1975-01-27
LU65112A1 (OSRAM) 1972-12-07
IT950969B (it) 1973-06-20
DE2216319B2 (de) 1978-10-12
BE781767A (fr) 1972-10-06
ES401536A1 (es) 1975-02-16
FR2133079A5 (OSRAM) 1972-11-24
DE2216319A1 (de) 1972-10-12
GB1391697A (en) 1975-04-23

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Legal Events

Date Code Title Description
PL Patent ceased