FR2050060A5 - - Google Patents

Info

Publication number
FR2050060A5
FR2050060A5 FR7020876A FR7020876A FR2050060A5 FR 2050060 A5 FR2050060 A5 FR 2050060A5 FR 7020876 A FR7020876 A FR 7020876A FR 7020876 A FR7020876 A FR 7020876A FR 2050060 A5 FR2050060 A5 FR 2050060A5
Authority
FR
France
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
FR7020876A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of FR2050060A5 publication Critical patent/FR2050060A5/fr
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
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Telephonic Communication Services (AREA)
FR7020876A 1969-06-06 1970-06-05 Expired FR2050060A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE803369 1969-06-06

Publications (1)

Publication Number Publication Date
FR2050060A5 true FR2050060A5 (fr) 1971-03-26

Family

ID=20272951

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7020876A Expired FR2050060A5 (fr) 1969-06-06 1970-06-05

Country Status (8)

Country Link
US (1) US3665489A (fr)
CH (1) CH503446A (fr)
DE (1) DE2027508B2 (fr)
DK (1) DK124509B (fr)
FR (1) FR2050060A5 (fr)
GB (1) GB1277676A (fr)
NL (1) NL7008132A (fr)
NO (1) NO126762B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911223A (en) * 1971-12-02 1975-10-07 Siemens Ag Circuit arrangement for subscriber stations in telecommunications installations, especially telephone installations with auxiliary data traffic
NL7402574A (nl) * 1974-02-26 1975-08-28 Philips Nv Schakeling voor een toondruktoetskeuzetelefoon- toestel.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE510536A (fr) * 1951-04-10
NL236432A (fr) * 1958-03-10
NL242923A (fr) * 1958-09-08
DE1201417B (de) * 1964-07-10 1965-09-23 Standard Elektrik Lorenz Ag Tonfrequentes Tastwahlverfahren ohne Gleichstrom-Wahlbegleitzeichen in Fernmelde-, insbesondere Fernsprechanlagen und Schaltungsanordnung zur Durchfuehrung des Verfahrens
US3424870A (en) * 1965-09-14 1969-01-28 Bell Telephone Labor Inc Multifrequency signal generator for tone-dialed telephones
NL6604015A (fr) * 1966-03-26 1967-09-27
FR1525030A (fr) * 1966-07-29 1968-05-17 Cit Alcatel Disposition de clavier pour numérotation par variations d'impédance

Also Published As

Publication number Publication date
DK124509B (da) 1972-10-23
NO126762B (fr) 1973-03-19
DE2027508A1 (fr) 1970-12-10
CH503446A (de) 1971-02-15
NL7008132A (fr) 1970-12-08
US3665489A (en) 1972-05-23
GB1277676A (en) 1972-06-14
DE2027508B2 (de) 1972-03-30

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Legal Events

Date Code Title Description
ST Notification of lapse