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IT1182761B - Dispositivo d'adattamento di tastiera ad emissione decimale o in multifrequenza su apparecchio telefonico - Google Patents

Dispositivo d'adattamento di tastiera ad emissione decimale o in multifrequenza su apparecchio telefonico

Info

Publication number
IT1182761B
IT1182761B IT48228/85A IT4822885A IT1182761B IT 1182761 B IT1182761 B IT 1182761B IT 48228/85 A IT48228/85 A IT 48228/85A IT 4822885 A IT4822885 A IT 4822885A IT 1182761 B IT1182761 B IT 1182761B
Authority
IT
Italy
Prior art keywords
decimal
telephone
adaptation device
multifrequency
emission
Prior art date
Application number
IT48228/85A
Other languages
English (en)
Other versions
IT8548228A0 (it
Inventor
Jean-Jacques Raynal
Original Assignee
Semiconducteurs Soc Gen De
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 Semiconducteurs Soc Gen De filed Critical Semiconducteurs Soc Gen De
Publication of IT8548228A0 publication Critical patent/IT8548228A0/it
Application granted granted Critical
Publication of IT1182761B publication Critical patent/IT1182761B/it

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)
IT48228/85A 1984-06-19 1985-06-17 Dispositivo d'adattamento di tastiera ad emissione decimale o in multifrequenza su apparecchio telefonico IT1182761B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8409584A FR2566215B1 (fr) 1984-06-19 1984-06-19 Dispositif d'adaptation de clavier a emission decimale ou multifrequence sur poste telephonique

Publications (2)

Publication Number Publication Date
IT8548228A0 IT8548228A0 (it) 1985-06-17
IT1182761B true IT1182761B (it) 1987-10-05

Family

ID=9305192

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48228/85A IT1182761B (it) 1984-06-19 1985-06-17 Dispositivo d'adattamento di tastiera ad emissione decimale o in multifrequenza su apparecchio telefonico

Country Status (4)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4321778C2 (de) * 1993-06-30 1996-10-02 Siemens Ag MFV-/IWV-Schaltungsanordnung für Fernsprechendgeräte
DE4415952C2 (de) * 1994-05-05 1996-09-12 Siemens Ag Schaltungsanordnung für Telekommunikationseinrichtungen, insbesondere Zwei-/Vierdrahtschnittstellen von Schnurlos-Basisstationen

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 (it) * 1974-02-14 1979-02-09 Merlin Jean Claude
CH620559A5 (it) * 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
US4194098A (en) * 1978-06-12 1980-03-18 Metro-Tel Corp. Lineman's hand test set
FR2520569B1 (fr) * 1982-01-27 1986-08-14 Anep Clavier telephonique electronique de remplacement d'un cadran d'un poste existant

Also Published As

Publication number Publication date
DE3521928C2 (de) 1996-02-15
DE3521928A1 (de) 1985-12-19
GB2160745B (en) 1988-05-05
FR2566215B1 (fr) 1986-10-10
GB2160745A (en) 1985-12-24
FR2566215A1 (fr) 1985-12-20
IT8548228A0 (it) 1985-06-17
GB8515467D0 (en) 1985-07-24

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970628