FR2319164A2 - Procede et dispositif d'alarme enregistreur et avertisseur sonore par ondes radiophoniques - Google Patents

Procede et dispositif d'alarme enregistreur et avertisseur sonore par ondes radiophoniques

Info

Publication number
FR2319164A2
FR2319164A2 FR7524576A FR7524576A FR2319164A2 FR 2319164 A2 FR2319164 A2 FR 2319164A2 FR 7524576 A FR7524576 A FR 7524576A FR 7524576 A FR7524576 A FR 7524576A FR 2319164 A2 FR2319164 A2 FR 2319164A2
Authority
FR
France
Prior art keywords
detection circuit
loudspeakers
alarm signal
recorder
tape recorder
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.)
Pending
Application number
FR7524576A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7524576A priority Critical patent/FR2319164A2/fr
Publication of FR2319164A2 publication Critical patent/FR2319164A2/fr
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/012—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using recorded signals, e.g. speech

Landscapes

  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmitters (AREA)
FR7524576A 1975-07-25 1975-07-25 Procede et dispositif d'alarme enregistreur et avertisseur sonore par ondes radiophoniques Pending FR2319164A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7524576A FR2319164A2 (fr) 1975-07-25 1975-07-25 Procede et dispositif d'alarme enregistreur et avertisseur sonore par ondes radiophoniques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7524576A FR2319164A2 (fr) 1975-07-25 1975-07-25 Procede et dispositif d'alarme enregistreur et avertisseur sonore par ondes radiophoniques

Publications (1)

Publication Number Publication Date
FR2319164A2 true FR2319164A2 (fr) 1977-02-18

Family

ID=9158848

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7524576A Pending FR2319164A2 (fr) 1975-07-25 1975-07-25 Procede et dispositif d'alarme enregistreur et avertisseur sonore par ondes radiophoniques

Country Status (1)

Country Link
FR (1) FR2319164A2 (fr)

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