FR2286554A2 - Module discriminateur d'impulsions eliminant les fausses alarmes engendrees par un detecteur a ultra-sons - Google Patents

Module discriminateur d'impulsions eliminant les fausses alarmes engendrees par un detecteur a ultra-sons

Info

Publication number
FR2286554A2
FR2286554A2 FR7432283A FR7432283A FR2286554A2 FR 2286554 A2 FR2286554 A2 FR 2286554A2 FR 7432283 A FR7432283 A FR 7432283A FR 7432283 A FR7432283 A FR 7432283A FR 2286554 A2 FR2286554 A2 FR 2286554A2
Authority
FR
France
Prior art keywords
resistor
transistor
relay
connected via
false alarm
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.)
Granted
Application number
FR7432283A
Other languages
English (en)
French (fr)
Other versions
FR2286554B2 (env
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.)
COURTILS GUY DES
Original Assignee
COURTILS GUY DES
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 COURTILS GUY DES filed Critical COURTILS GUY DES
Priority to FR7432283A priority Critical patent/FR2286554A2/fr
Publication of FR2286554A2 publication Critical patent/FR2286554A2/fr
Application granted granted Critical
Publication of FR2286554B2 publication Critical patent/FR2286554B2/fr
Granted legal-status Critical Current

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
    • G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems
    • G08B13/1618—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
FR7432283A 1974-09-25 1974-09-25 Module discriminateur d'impulsions eliminant les fausses alarmes engendrees par un detecteur a ultra-sons Granted FR2286554A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7432283A FR2286554A2 (fr) 1974-09-25 1974-09-25 Module discriminateur d'impulsions eliminant les fausses alarmes engendrees par un detecteur a ultra-sons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7432283A FR2286554A2 (fr) 1974-09-25 1974-09-25 Module discriminateur d'impulsions eliminant les fausses alarmes engendrees par un detecteur a ultra-sons

Publications (2)

Publication Number Publication Date
FR2286554A2 true FR2286554A2 (fr) 1976-04-23
FR2286554B2 FR2286554B2 (env) 1977-07-01

Family

ID=9143406

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7432283A Granted FR2286554A2 (fr) 1974-09-25 1974-09-25 Module discriminateur d'impulsions eliminant les fausses alarmes engendrees par un detecteur a ultra-sons

Country Status (1)

Country Link
FR (1) FR2286554A2 (env)

Also Published As

Publication number Publication date
FR2286554B2 (env) 1977-07-01

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