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GB2160745B - A device for adaptation of a decimal or multifrequency code dialling keyboard to a conventional telephone set - Google Patents

A device for adaptation of a decimal or multifrequency code dialling keyboard to a conventional telephone set

Info

Publication number
GB2160745B
GB2160745B GB08515467A GB8515467A GB2160745B GB 2160745 B GB2160745 B GB 2160745B GB 08515467 A GB08515467 A GB 08515467A GB 8515467 A GB8515467 A GB 8515467A GB 2160745 B GB2160745 B GB 2160745B
Authority
GB
United Kingdom
Prior art keywords
decimal
adaptation
telephone set
conventional telephone
multifrequency code
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
GB08515467A
Other versions
GB2160745A (en
GB8515467D0 (en
Inventor
Jean-Jacques Raynal
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.)
SOC GEN SEMICONDUCTEURS
Original Assignee
SOC GEN SEMICONDUCTEURS
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 SOC GEN SEMICONDUCTEURS filed Critical SOC GEN SEMICONDUCTEURS
Publication of GB8515467D0 publication Critical patent/GB8515467D0/en
Publication of GB2160745A publication Critical patent/GB2160745A/en
Application granted granted Critical
Publication of GB2160745B publication Critical patent/GB2160745B/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Telephonic Communication Services (AREA)
  • Devices For Supply Of Signal Current (AREA)
GB08515467A 1984-06-19 1985-06-19 A device for adaptation of a decimal or multifrequency code dialling keyboard to a conventional telephone set Expired GB2160745B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8409584A FR2566215B1 (en) 1984-06-19 1984-06-19 DEVICE FOR ADAPTING A KEYBOARD WITH DECIMAL OR MULTI-FREQUENCY TRANSMISSION ON A TELEPHONE STATION

Publications (3)

Publication Number Publication Date
GB8515467D0 GB8515467D0 (en) 1985-07-24
GB2160745A GB2160745A (en) 1985-12-24
GB2160745B true GB2160745B (en) 1988-05-05

Family

ID=9305192

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08515467A Expired GB2160745B (en) 1984-06-19 1985-06-19 A device for adaptation of a decimal or multifrequency code dialling keyboard to a conventional telephone set

Country Status (4)

Country Link
DE (1) DE3521928C2 (en)
FR (1) FR2566215B1 (en)
GB (1) GB2160745B (en)
IT (1) IT1182761B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4321778C2 (en) * 1993-06-30 1996-10-02 Siemens Ag DTMF / IWV circuitry for telephone terminals
DE4415952C2 (en) * 1994-05-05 1996-09-12 Siemens Ag Circuit arrangement for telecommunication devices, in particular two / four wire interfaces of cordless base stations

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1307266A (en) * 1970-07-27 1973-02-14 Modern Telephones Ltd Automatic telephone systems
FR2270738B1 (en) * 1974-02-14 1979-02-09 Merlin Jean Claude
CH620559A5 (en) * 1977-09-12 1980-11-28 Sodeco Compteurs De Geneve
FR2419624A1 (en) * 1978-03-08 1979-10-05 Roche Bernard TELEPHONE STATION WITH KEYPAD WITH AUTOMATIC SWITCHING OF PULSE AND MULTI-FREQUENCY DIALING CODES
US4194098A (en) * 1978-06-12 1980-03-18 Metro-Tel Corp. Lineman's hand test set
FR2520569B1 (en) * 1982-01-27 1986-08-14 Anep ELECTRONIC TELEPHONE KEYBOARD FOR REPLACING A DIAL OF AN EXISTING STATION

Also Published As

Publication number Publication date
DE3521928C2 (en) 1996-02-15
DE3521928A1 (en) 1985-12-19
FR2566215B1 (en) 1986-10-10
GB2160745A (en) 1985-12-24
IT1182761B (en) 1987-10-05
FR2566215A1 (en) 1985-12-20
IT8548228A0 (en) 1985-06-17
GB8515467D0 (en) 1985-07-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010619