SE398188B - Anordning vid telefonapparater innefattande en anropspulsseriegenerator och en generator for multifrekventa anropssignaler - Google Patents

Anordning vid telefonapparater innefattande en anropspulsseriegenerator och en generator for multifrekventa anropssignaler

Info

Publication number
SE398188B
SE398188B SE7501531A SE7501531A SE398188B SE 398188 B SE398188 B SE 398188B SE 7501531 A SE7501531 A SE 7501531A SE 7501531 A SE7501531 A SE 7501531A SE 398188 B SE398188 B SE 398188B
Authority
SE
Sweden
Prior art keywords
generator
call
multifrequent
sery
devices including
Prior art date
Application number
SE7501531A
Other languages
English (en)
Swedish (sv)
Other versions
SE7501531L (nl
Inventor
Sok
Original Assignee
Merlin Jean Claude
Serres Bernard
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 Merlin Jean Claude, Serres Bernard filed Critical Merlin Jean Claude
Publication of SE7501531L publication Critical patent/SE7501531L/xx
Publication of SE398188B publication Critical patent/SE398188B/xx

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Telephonic Communication Services (AREA)
SE7501531A 1974-02-14 1975-02-12 Anordning vid telefonapparater innefattande en anropspulsseriegenerator och en generator for multifrekventa anropssignaler SE398188B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR747405051A FR2270738B1 (nl) 1974-02-14 1974-02-14

Publications (2)

Publication Number Publication Date
SE7501531L SE7501531L (nl) 1975-08-15
SE398188B true SE398188B (sv) 1977-12-05

Family

ID=9134914

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7501531A SE398188B (sv) 1974-02-14 1975-02-12 Anordning vid telefonapparater innefattande en anropspulsseriegenerator och en generator for multifrekventa anropssignaler

Country Status (7)

Country Link
US (1) US3988549A (nl)
JP (1) JPS50119507A (nl)
DE (1) DE2506122B2 (nl)
FR (1) FR2270738B1 (nl)
GB (1) GB1456815A (nl)
NL (1) NL7501754A (nl)
SE (1) SE398188B (nl)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063037A (en) * 1976-06-14 1977-12-13 Rochester Telephone Corporation Telephone metering interface with reverse signal sensor
US4119810A (en) * 1976-09-13 1978-10-10 Phone Devices Corporation Pushbutton telephone apparatus with automatic dialing and combinational sequential control signalling capabilities
CH620559A5 (nl) * 1977-09-12 1980-11-28 Sodeco Compteurs De Geneve
FR2419624A1 (fr) * 1978-03-08 1979-10-05 Roche Bernard Poste telephonique a clavier a commutation automatique des codes de numerotation a impulsions et a multifrequence
AT379478B (de) * 1978-04-15 1986-01-10 Telefonbau & Normalzeit Gmbh Schaltungsanordnung fuer teilnehmerapparate in fernsprechnebenstellenanlagen mit tonfrequenter tastwahl
US4203006A (en) * 1978-04-20 1980-05-13 Prentice Corporation Direct access coupler
FR2471704B1 (fr) * 1979-12-13 1986-06-20 Thomson Csf Mat Tel Dispositif d'envoi de signalisation pour postes et terminaux telephoniques
IT1146176B (it) * 1980-02-07 1986-11-12 Italdata Spa Dispositivo interfacciale per la gestione automatica di una linea telefonica commutata
FR2566215B1 (fr) * 1984-06-19 1986-10-10 Semiconducteurs Ste Gle Dispositif d'adaptation de clavier a emission decimale ou multifrequence sur poste telephonique
GB2208057A (en) * 1987-07-27 1989-02-15 Barron Mccann Limited Telephone interface device
AU622744B2 (en) * 1989-02-02 1992-04-16 Alcatel Australia Limited Dialler chip mode signal
US5369697A (en) * 1993-04-30 1994-11-29 Boston Technology, Inc. Method and apparatus for automatically switching between pulse code and DTMF signals generated by a telephone

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3301957A (en) * 1962-12-06 1967-01-31 Bell Telephone Labor Inc Unattended automatic dialing of telephone numbers
US3371162A (en) * 1964-09-02 1968-02-27 Scantlin Electronics Inc System for transmitting digital data via telephone lines utilizing a telephone as the input
US3541262A (en) * 1968-05-10 1970-11-17 Teltronics Inc Post pay telephone control unit
US3652795A (en) * 1970-11-25 1972-03-28 Electrospace Corp Telephone transaction system
US3778556A (en) * 1971-07-02 1973-12-11 Telecommunications Techn Inc Telephone signaling and testing apparatus with provisions for either pulse or multifrequency dialing
CA928877A (en) * 1971-09-01 1973-06-19 Nowicki Jan Post pay telephone paystation circuit
US3932709A (en) * 1973-04-16 1976-01-13 General Teletronics Incorporated Electronic business telephone
US3920926A (en) * 1973-12-07 1975-11-18 Northern Electric Co Telephone data set including visual display means

Also Published As

Publication number Publication date
DE2506122A1 (de) 1975-08-21
US3988549A (en) 1976-10-26
JPS50119507A (nl) 1975-09-19
FR2270738A1 (nl) 1975-12-05
GB1456815A (en) 1976-11-24
NL7501754A (nl) 1975-08-18
FR2270738B1 (nl) 1979-02-09
SE7501531L (nl) 1975-08-15
DE2506122B2 (de) 1976-06-24

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