FR2520569B1 - ELECTRONIC TELEPHONE KEYBOARD FOR REPLACING A DIAL OF AN EXISTING STATION - Google Patents

ELECTRONIC TELEPHONE KEYBOARD FOR REPLACING A DIAL OF AN EXISTING STATION

Info

Publication number
FR2520569B1
FR2520569B1 FR8201294A FR8201294A FR2520569B1 FR 2520569 B1 FR2520569 B1 FR 2520569B1 FR 8201294 A FR8201294 A FR 8201294A FR 8201294 A FR8201294 A FR 8201294A FR 2520569 B1 FR2520569 B1 FR 2520569B1
Authority
FR
France
Prior art keywords
dial
replacing
electronic telephone
existing station
telephone keyboard
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.)
Expired
Application number
FR8201294A
Other languages
French (fr)
Other versions
FR2520569A1 (en
Inventor
Denis De Pena
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.)
ANEP
Original Assignee
ANEP
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 ANEP filed Critical ANEP
Priority to FR8201294A priority Critical patent/FR2520569B1/en
Publication of FR2520569A1 publication Critical patent/FR2520569A1/en
Application granted granted Critical
Publication of FR2520569B1 publication Critical patent/FR2520569B1/en
Expired 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
FR8201294A 1982-01-27 1982-01-27 ELECTRONIC TELEPHONE KEYBOARD FOR REPLACING A DIAL OF AN EXISTING STATION Expired FR2520569B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8201294A FR2520569B1 (en) 1982-01-27 1982-01-27 ELECTRONIC TELEPHONE KEYBOARD FOR REPLACING A DIAL OF AN EXISTING STATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8201294A FR2520569B1 (en) 1982-01-27 1982-01-27 ELECTRONIC TELEPHONE KEYBOARD FOR REPLACING A DIAL OF AN EXISTING STATION

Publications (2)

Publication Number Publication Date
FR2520569A1 FR2520569A1 (en) 1983-07-29
FR2520569B1 true FR2520569B1 (en) 1986-08-14

Family

ID=9270383

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8201294A Expired FR2520569B1 (en) 1982-01-27 1982-01-27 ELECTRONIC TELEPHONE KEYBOARD FOR REPLACING A DIAL OF AN EXISTING STATION

Country Status (1)

Country Link
FR (1) FR2520569B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2566215B1 (en) * 1984-06-19 1986-10-10 Semiconducteurs Ste Gle DEVICE FOR ADAPTING A KEYBOARD WITH DECIMAL OR MULTI-FREQUENCY TRANSMISSION ON A TELEPHONE STATION
DE4020631A1 (en) * 1990-06-26 1992-01-09 Deutsche Telephonwerk Kabel CIRCUIT ARRANGEMENT FOR COMMUNICATION TERMINALS FOR SWITCHING A CLOCK WHEEL
FR2675326B1 (en) * 1991-04-10 1993-06-25 Matra Communication TELEPHONE SET INCLUDING A RINGER CIRCUIT AND A CONVERSATION CIRCUIT CONNECTED TO COMMON CONNECTION TERMINALS.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT376089B (en) * 1978-09-20 1984-10-10 Siemens Ag Oesterreich CIRCUIT FOR TELECOMMUNICATION, ESPECIALLY TELEPHONE PARTICIPANTS, AND TRANSMISSIONS WITH IMPULSE GIVING CONTROL
DE2936575C2 (en) * 1979-09-11 1982-05-13 Standard Elektrik Lorenz Ag, 7000 Stuttgart Circuit arrangement for a telephone set.

Also Published As

Publication number Publication date
FR2520569A1 (en) 1983-07-29

Similar Documents

Publication Publication Date Title
FR2592998B1 (en) TEST CIRCUIT FOR AN ELECTRONIC TRIGGER OF A DIFFERENTIAL CIRCUIT BREAKER.
GB2102246B (en) Call progress tone detection circuit
FR2406358B1 (en) INTERFACE CIRCUIT FOR TELEPHONE SET
FR2529368B1 (en) FUNCTIONAL CHANGE MECHANISM FOR ELECTRONIC EQUIPMENT
BE884833A (en) ELECTRONIC TONE RINGER
FR2561049B1 (en) CONTROL CIRCUIT OF AN APPROACH INITIATOR
JPS547806A (en) Electronic tone ring for telephone set
FR2570519B1 (en) ELECTRONIC CIRCUIT PANEL FOR A WATCHMAKING DEVICE
JPS55165057A (en) Electronic keyboard interface circuit for telephone
FR2520569B1 (en) ELECTRONIC TELEPHONE KEYBOARD FOR REPLACING A DIAL OF AN EXISTING STATION
BE886979A (en) ELECTRONIC TONE RINGER
FR2527404B1 (en) ELECTRONIC SUBSCRIBER
BE876692A (en) ELECTRONIC TELEPHONE CIRCUIT FOR SUBSCRIBER LINE
IT8323434A0 (en) STAND-BY CIRCUIT OF A HOOK-UP RELAY FOR TELEPHONE SET.
ES498971A0 (en) AN ELECTRONIC DEVICE METER FOR TELEPHONE CALL DEBITS
DK290585A (en) CIRCUIT FOR A PHONE DEVICE
FR2551604B1 (en) TELEXING DEVICE FOR ELECTRONIC TELEPHONE TERMINAL
FR2487611B1 (en) VOICE FREQUENCY KEYBOARD INTERFACE CIRCUIT
AU1787283A (en) Ringer circuit for telephone subset
IT8420561A1 (en) "Transmission circuit for a two tone tone telephone set"
PT71752A (en) Electronic circuit for telephone subscriber instruments
FR2535139B1 (en) NUMBERING PLAN DEVICE FOR ELECTRONIC TELEPHONE SWITCH
FR2538977B1 (en) TELEPHONE STATION KEYBOARD CIRCUIT
BE870379A (en) KEYPAD TELEPHONE STATION
GB2098429B (en) Electronic tone ringer

Legal Events

Date Code Title Description
ST Notification of lapse