AT311432B - Circuit arrangement for generating an acoustic call signal for terminals in telecommunication systems, in particular telephone systems, by means of an oscillating circuit - Google Patents

Circuit arrangement for generating an acoustic call signal for terminals in telecommunication systems, in particular telephone systems, by means of an oscillating circuit

Info

Publication number
AT311432B
AT311432B AT834471A AT834471A AT311432B AT 311432 B AT311432 B AT 311432B AT 834471 A AT834471 A AT 834471A AT 834471 A AT834471 A AT 834471A AT 311432 B AT311432 B AT 311432B
Authority
AT
Austria
Prior art keywords
systems
terminals
generating
call signal
particular telephone
Prior art date
Application number
AT834471A
Other languages
German (de)
Original Assignee
Siemens Ag
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
Priority claimed from DE19702049346 external-priority patent/DE2049346C3/en
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT311432B publication Critical patent/AT311432B/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)
  • Piezo-Electric Transducers For Audible Bands (AREA)
AT834471A 1970-10-07 1971-09-27 Circuit arrangement for generating an acoustic call signal for terminals in telecommunication systems, in particular telephone systems, by means of an oscillating circuit AT311432B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702049346 DE2049346C3 (en) 1970-10-07 Circuit arrangement for generating an acoustic call signal for terminals in telecommunication systems, in particular telephone systems, by means of an oscillating circuit

Publications (1)

Publication Number Publication Date
AT311432B true AT311432B (en) 1973-11-12

Family

ID=5784495

Family Applications (1)

Application Number Title Priority Date Filing Date
AT834471A AT311432B (en) 1970-10-07 1971-09-27 Circuit arrangement for generating an acoustic call signal for terminals in telecommunication systems, in particular telephone systems, by means of an oscillating circuit

Country Status (8)

Country Link
AT (1) AT311432B (en)
BE (1) BE773617A (en)
CH (1) CH543204A (en)
FR (1) FR2110265B1 (en)
GB (1) GB1366167A (en)
LU (1) LU64012A1 (en)
NL (1) NL156882B (en)
SE (1) SE371920B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT379265B (en) * 1981-05-20 1985-12-10 Siemens Ag CIRCUIT ARRANGEMENT FOR GENERATING AN ACOUSTIC CALL SIGNAL FOR A TERMINAL IN TELECOMMUNICATIONS, IN PARTICULAR TELEPHONE SYSTEMS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT379265B (en) * 1981-05-20 1985-12-10 Siemens Ag CIRCUIT ARRANGEMENT FOR GENERATING AN ACOUSTIC CALL SIGNAL FOR A TERMINAL IN TELECOMMUNICATIONS, IN PARTICULAR TELEPHONE SYSTEMS

Also Published As

Publication number Publication date
NL156882B (en) 1978-05-16
DE2049346B2 (en) 1974-01-31
FR2110265B1 (en) 1975-02-07
DE2049346A1 (en) 1972-04-13
CH543204A (en) 1973-10-15
FR2110265A1 (en) 1972-06-02
NL7113728A (en) 1972-04-11
BE773617A (en) 1972-04-07
LU64012A1 (en) 1972-04-12
SE371920B (en) 1974-12-02
GB1366167A (en) 1974-09-11

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee