CH544461A - Telephone subscriber station for generating series of pulses preselected using a keyboard - Google Patents

Telephone subscriber station for generating series of pulses preselected using a keyboard

Info

Publication number
CH544461A
CH544461A CH972972A CH972972A CH544461A CH 544461 A CH544461 A CH 544461A CH 972972 A CH972972 A CH 972972A CH 972972 A CH972972 A CH 972972A CH 544461 A CH544461 A CH 544461A
Authority
CH
Switzerland
Prior art keywords
preselected
pulses
keyboard
subscriber station
telephone subscriber
Prior art date
Application number
CH972972A
Other languages
German (de)
Inventor
Bourqui Gerald
Filisetti Santo
Original Assignee
Autophon Ag
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 Autophon Ag filed Critical Autophon Ag
Priority to CH972972A priority Critical patent/CH544461A/en
Priority to AT506473A priority patent/AT340484B/en
Priority to DE19732329550 priority patent/DE2329550B2/en
Publication of CH544461A publication Critical patent/CH544461A/en

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
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/272—Devices whereby a plurality of signals may be stored simultaneously with provision for storing only one subscriber number at a time, e.g. by keyboard or dial

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
CH972972A 1972-06-29 1972-06-29 Telephone subscriber station for generating series of pulses preselected using a keyboard CH544461A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH972972A CH544461A (en) 1972-06-29 1972-06-29 Telephone subscriber station for generating series of pulses preselected using a keyboard
AT506473A AT340484B (en) 1972-06-29 1973-06-08 TELEPHONE SUBSCRIBER STATION WITH A KEYBOARD FOR ENTERING DIALING INFORMATION
DE19732329550 DE2329550B2 (en) 1972-06-29 1973-06-09 Telephone subscriber handset with push-button selector - uses electronic switching cct. to supply pulse series representing selected numbers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH972972A CH544461A (en) 1972-06-29 1972-06-29 Telephone subscriber station for generating series of pulses preselected using a keyboard

Publications (1)

Publication Number Publication Date
CH544461A true CH544461A (en) 1973-11-15

Family

ID=4355044

Family Applications (1)

Application Number Title Priority Date Filing Date
CH972972A CH544461A (en) 1972-06-29 1972-06-29 Telephone subscriber station for generating series of pulses preselected using a keyboard

Country Status (3)

Country Link
AT (1) AT340484B (en)
CH (1) CH544461A (en)
DE (1) DE2329550B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2282198A1 (en) * 1974-08-12 1976-03-12 Trt Telecom Radio Electr Keyboard telephone for long lines - uses speech loop current to power MOS circuit

Families Citing this family (5)

* 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
DE3119080C2 (en) * 1981-05-14 1985-12-12 Neumann Elektronik GmbH, 4330 Mülheim Automatic answering machine
DE3201536C2 (en) * 1982-01-20 1986-02-06 ANT Nachrichtentechnik GmbH, 7150 Backnang Circuit arrangement for a signaling device in telecommunications systems
DE3245005C2 (en) * 1982-12-06 1984-11-22 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Power supply for a circuit arrangement for impulse dialing signals in a telephone set
DE3725315C2 (en) * 1987-07-30 1995-04-06 Siemens Ag Circuit arrangement for an electronic exchange restrictor in an exchange set of a private branch exchange with impulse-giving dialing control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2282198A1 (en) * 1974-08-12 1976-03-12 Trt Telecom Radio Electr Keyboard telephone for long lines - uses speech loop current to power MOS circuit

Also Published As

Publication number Publication date
DE2329550A1 (en) 1974-01-17
AT340484B (en) 1977-12-12
DE2329550B2 (en) 1976-01-02
ATA506473A (en) 1977-04-15

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Legal Events

Date Code Title Description
PL Patent ceased