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ES451179A1 - Connection provision for generation of a free sound for a telephone installation. (Machine-translation by Google Translate, not legally binding) - Google Patents

Connection provision for generation of a free sound for a telephone installation. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES451179A1
ES451179A1 ES451179A ES451179A ES451179A1 ES 451179 A1 ES451179 A1 ES 451179A1 ES 451179 A ES451179 A ES 451179A ES 451179 A ES451179 A ES 451179A ES 451179 A1 ES451179 A1 ES 451179A1
Authority
ES
Spain
Prior art keywords
translation
machine
legally binding
google translate
generation
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
ES451179A
Other languages
Spanish (es)
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of ES451179A1 publication Critical patent/ES451179A1/en
Expired legal-status Critical Current

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)
  • Interface Circuits In Exchanges (AREA)

Abstract

Connection arrangement for generation gives a free sound for a tfh telephony installation, in which each place gives participation is coordinated a proper call current generator, which comes into operation when the respective place is called, characterized because between the wires a and b are two or more diodes in serious and, unparalleled to them, two or more other diodes in series with a capacitor and because the operating voltage terminals of a stable multivibrator are connected to both ends of the capacitor, while the output multivibrator is connected, through a contact of a relay, located in the call state, in rest position, with the transition path. (Machine-translation by Google Translate, not legally binding)
ES451179A 1975-09-05 1976-09-02 Connection provision for generation of a free sound for a telephone installation. (Machine-translation by Google Translate, not legally binding) Expired ES451179A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2539505A DE2539505C3 (en) 1975-09-05 1975-09-05 Ring tone generator

Publications (1)

Publication Number Publication Date
ES451179A1 true ES451179A1 (en) 1977-08-16

Family

ID=5955672

Family Applications (1)

Application Number Title Priority Date Filing Date
ES451179A Expired ES451179A1 (en) 1975-09-05 1976-09-02 Connection provision for generation of a free sound for a telephone installation. (Machine-translation by Google Translate, not legally binding)

Country Status (6)

Country Link
AT (1) AT350637B (en)
BR (1) BR7604863A (en)
DE (1) DE2539505C3 (en)
ES (1) ES451179A1 (en)
IL (1) IL50405A (en)
LU (1) LU75726A1 (en)

Also Published As

Publication number Publication date
DE2539505A1 (en) 1977-03-10
LU75726A1 (en) 1977-04-28
BR7604863A (en) 1977-08-09
IL50405A0 (en) 1976-11-30
ATA656976A (en) 1978-11-15
DE2539505B2 (en) 1977-11-24
DE2539505C3 (en) 1978-07-06
AT350637B (en) 1979-06-11
IL50405A (en) 1979-09-30

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