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ATA580578A - TELEPHONE WITH A KEYBOARD AND A SWITCH FOR SWITCHING FROM PULSE SELECT TO FREQUENCY SELECT OR REVERSE - Google Patents

TELEPHONE WITH A KEYBOARD AND A SWITCH FOR SWITCHING FROM PULSE SELECT TO FREQUENCY SELECT OR REVERSE

Info

Publication number
ATA580578A
ATA580578A AT0580578A AT580578A ATA580578A AT A580578 A ATA580578 A AT A580578A AT 0580578 A AT0580578 A AT 0580578A AT 580578 A AT580578 A AT 580578A AT A580578 A ATA580578 A AT A580578A
Authority
AT
Austria
Prior art keywords
select
telephone
keyboard
reverse
switching
Prior art date
Application number
AT0580578A
Other languages
German (de)
Other versions
AT366218B (en
Inventor
Patrice Ritzenthaler
Original Assignee
Sodeco Compteurs De Geneve
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 Sodeco Compteurs De Geneve filed Critical Sodeco Compteurs De Geneve
Publication of ATA580578A publication Critical patent/ATA580578A/en
Application granted granted Critical
Publication of AT366218B publication Critical patent/AT366218B/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
    • 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
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
    • H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
    • H04M1/27495—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips implemented by means of discrete electronic components, i.e. neither programmable nor microprocessor-controlled
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • H04M17/023—Circuit arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Discrete Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Prepayment Telephone Systems (AREA)
  • Telephone Function (AREA)
  • Telephone Set Structure (AREA)
  • Telephonic Communication Services (AREA)
  • Input From Keyboards Or The Like (AREA)
AT0580578A 1977-09-12 1978-08-10 TELEPHONE WITH A KEYBOARD AND A SWITCH FOR SWITCHING FROM PULSE SELECTION TO FREQUENCY SELECTION OR. VICE VERSA AT366218B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1110777A CH620559A5 (en) 1977-09-12 1977-09-12

Publications (2)

Publication Number Publication Date
ATA580578A true ATA580578A (en) 1981-07-15
AT366218B AT366218B (en) 1982-03-25

Family

ID=4370119

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0580578A AT366218B (en) 1977-09-12 1978-08-10 TELEPHONE WITH A KEYBOARD AND A SWITCH FOR SWITCHING FROM PULSE SELECTION TO FREQUENCY SELECTION OR. VICE VERSA

Country Status (9)

Country Link
AT (1) AT366218B (en)
BE (1) BE870379A (en)
CH (1) CH620559A5 (en)
DE (1) DE2825785C2 (en)
DK (1) DK148867C (en)
FR (1) FR2402976B1 (en)
GB (1) GB2004162B (en)
NL (1) NL7809232A (en)
NO (1) NO148580C (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
DE4321778C2 (en) * 1993-06-30 1996-10-02 Siemens Ag DTMF / IWV circuitry for telephone terminals
WO2025228719A1 (en) 2024-04-30 2025-11-06 Climeworks Ag Sorbent structures for co2 capture

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1298077A (en) * 1969-10-23 1972-11-29 Post Office Improvements in or relating to telephone subscribers' sets
GB1395577A (en) * 1972-05-11 1975-05-29 Standard Telephones Cables Ltd Telephones
FR2270738B1 (en) * 1974-02-14 1979-02-09 Merlin Jean Claude
GB1524028A (en) * 1974-10-22 1978-09-06 Standard Telephones Cables Ltd Repertory dialler

Also Published As

Publication number Publication date
AT366218B (en) 1982-03-25
DK148867C (en) 1986-04-21
NO148580B (en) 1983-07-25
FR2402976A1 (en) 1979-04-06
FR2402976B1 (en) 1985-08-30
DE2825785A1 (en) 1979-03-15
NL7809232A (en) 1979-03-14
NO148580C (en) 1983-11-02
NO783049L (en) 1979-03-13
DK399878A (en) 1979-03-13
DK148867B (en) 1985-10-28
BE870379A (en) 1979-01-02
GB2004162B (en) 1982-02-10
DE2825785C2 (en) 1983-11-03
GB2004162A (en) 1979-03-21
CH620559A5 (en) 1980-11-28

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