AT262389B - Circuit arrangement for triggering tone-frequency call signals in subscriber stations of telecommunication systems, in particular telephone systems - Google Patents

Circuit arrangement for triggering tone-frequency call signals in subscriber stations of telecommunication systems, in particular telephone systems

Info

Publication number
AT262389B
AT262389B AT647866A AT647866A AT262389B AT 262389 B AT262389 B AT 262389B AT 647866 A AT647866 A AT 647866A AT 647866 A AT647866 A AT 647866A AT 262389 B AT262389 B AT 262389B
Authority
AT
Austria
Prior art keywords
systems
circuit arrangement
subscriber stations
call signals
particular telephone
Prior art date
Application number
AT647866A
Other languages
German (de)
Original Assignee
Telefunken Patent
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 Telefunken Patent filed Critical Telefunken Patent
Application granted granted Critical
Publication of AT262389B publication Critical patent/AT262389B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
AT647866A 1965-08-07 1966-07-06 Circuit arrangement for triggering tone-frequency call signals in subscriber stations of telecommunication systems, in particular telephone systems AT262389B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET29181A DE1228672B (en) 1965-08-07 1965-08-07 Circuit arrangement for the triggering of tone-frequency call signals in subscriber stations in telecommunication systems, in particular telephone systems

Publications (1)

Publication Number Publication Date
AT262389B true AT262389B (en) 1968-06-10

Family

ID=7554699

Family Applications (1)

Application Number Title Priority Date Filing Date
AT647866A AT262389B (en) 1965-08-07 1966-07-06 Circuit arrangement for triggering tone-frequency call signals in subscriber stations of telecommunication systems, in particular telephone systems

Country Status (2)

Country Link
AT (1) AT262389B (en)
DE (1) DE1228672B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA968477A (en) * 1972-07-24 1975-05-27 Microsystems International Limited Threshold circuit for tone-ringer or like load means

Also Published As

Publication number Publication date
DE1228672B (en) 1966-11-17

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