FR2362538A1 - Dispositif telephonique d'emission d'impulsions de numerotation - Google Patents

Dispositif telephonique d'emission d'impulsions de numerotation

Info

Publication number
FR2362538A1
FR2362538A1 FR7625430A FR7625430A FR2362538A1 FR 2362538 A1 FR2362538 A1 FR 2362538A1 FR 7625430 A FR7625430 A FR 7625430A FR 7625430 A FR7625430 A FR 7625430A FR 2362538 A1 FR2362538 A1 FR 2362538A1
Authority
FR
France
Prior art keywords
circuit
oscillator
storage capacitor
generating circuit
dialling
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
FR7625430A
Other languages
English (en)
Other versions
FR2362538B3 (fr
Inventor
Patrick Jossier
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.)
PERITEL PERIPHERIQUE TELEPHONE
Original Assignee
PERITEL PERIPHERIQUE TELEPHONE
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 PERITEL PERIPHERIQUE TELEPHONE filed Critical PERITEL PERIPHERIQUE TELEPHONE
Priority to FR7625430A priority Critical patent/FR2362538A1/fr
Publication of FR2362538A1 publication Critical patent/FR2362538A1/fr
Application granted granted Critical
Publication of FR2362538B3 publication Critical patent/FR2362538B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits

Abstract

La présente invention concerne un dispositif téléphonique d'émission d'impulsions de numérotation. Ce dispositif est inséré dans un poste téléphonique comprenant de façon classique un circuit de détection d'appel 3 connecté à une ligne téléphonique L 1, L 2, des commutateurs à crochets 4, et un circuit de transmission audio 5. Selon la présente invention, on insère en série entre les bornes I et II, un dispositif d'émission d'impulsions de numérotation il pouvant fonctionner à partir d'un clavier et produisant une consommation d'énergie minimale en l'absence de numérotation. Un moyen de court-circuit audio 12 est prévu pour interrompre l'action des circuits de transmission audio lors de la numérotation. Le dispositif Il comprend un clavier et un circuit composeur intégré connu en soi et des circuits particuliers pour alimenter ce circuit composeur. Application au remplacement des cadrans téléphoniques classiques des postes téléphoniques par des claviers.
FR7625430A 1976-08-20 1976-08-20 Dispositif telephonique d'emission d'impulsions de numerotation Granted FR2362538A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7625430A FR2362538A1 (fr) 1976-08-20 1976-08-20 Dispositif telephonique d'emission d'impulsions de numerotation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7625430A FR2362538A1 (fr) 1976-08-20 1976-08-20 Dispositif telephonique d'emission d'impulsions de numerotation

Publications (2)

Publication Number Publication Date
FR2362538A1 true FR2362538A1 (fr) 1978-03-17
FR2362538B3 FR2362538B3 (fr) 1979-05-18

Family

ID=9177050

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625430A Granted FR2362538A1 (fr) 1976-08-20 1976-08-20 Dispositif telephonique d'emission d'impulsions de numerotation

Country Status (1)

Country Link
FR (1) FR2362538A1 (fr)

Also Published As

Publication number Publication date
FR2362538B3 (fr) 1979-05-18

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Legal Events

Date Code Title Description
ST Notification of lapse