HU176960B - Blok-skhema telefonnykh apparatov s odno- ili dvukhkratnym ispol'zovanie, abonentnykh linij peredachi - Google Patents

Blok-skhema telefonnykh apparatov s odno- ili dvukhkratnym ispol'zovanie, abonentnykh linij peredachi Download PDF

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Publication number
HU176960B
HU176960B HU77FE1007A HUFE001007A HU176960B HU 176960 B HU176960 B HU 176960B HU 77FE1007 A HU77FE1007 A HU 77FE1007A HU FE001007 A HUFE001007 A HU FE001007A HU 176960 B HU176960 B HU 176960B
Authority
HU
Hungary
Prior art keywords
transistor
resistor
capacitor
circuit
fork
Prior art date
Application number
HU77FE1007A
Other languages
English (en)
Hungarian (hu)
Inventor
Helmut Glier
Claus-Peter Kaufmann
Original Assignee
Nordhausen Veb Fernmeldewerk
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 Nordhausen Veb Fernmeldewerk filed Critical Nordhausen Veb Fernmeldewerk
Publication of HU176960B publication Critical patent/HU176960B/hu

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits
    • H04M1/585—Anti-side-tone circuits implemented without inductive element
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/71—Substation extension arrangements
    • H04M1/715—Substation extension arrangements using two or more extensions per line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephonic Communication Services (AREA)
  • Telephone Function (AREA)
  • Devices For Supply Of Signal Current (AREA)
HU77FE1007A 1976-09-23 1977-09-09 Blok-skhema telefonnykh apparatov s odno- ili dvukhkratnym ispol'zovanie, abonentnykh linij peredachi HU176960B (hu)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD19495576A DD127119B1 (me) 1976-09-23 1976-09-23

Publications (1)

Publication Number Publication Date
HU176960B true HU176960B (hu) 1981-06-28

Family

ID=5505821

Family Applications (1)

Application Number Title Priority Date Filing Date
HU77FE1007A HU176960B (hu) 1976-09-23 1977-09-09 Blok-skhema telefonnykh apparatov s odno- ili dvukhkratnym ispol'zovanie, abonentnykh linij peredachi

Country Status (7)

Country Link
CS (1) CS225657B1 (me)
CU (1) CU34755A (me)
DD (1) DD127119B1 (me)
DE (1) DE2732532C2 (me)
HU (1) HU176960B (me)
RO (1) RO80538B1 (me)
YU (1) YU39255B (me)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2159150C3 (de) * 1971-11-29 1978-07-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung für zentralgespeiste Teilnehmerstationen mit eine Widerstandsbrücke enthaltenden Sprechschaltungen

Also Published As

Publication number Publication date
CU20982L (es) 1981-04-20
RO80538A2 (ro) 1984-03-15
DE2732532A1 (de) 1978-03-30
CU34755A (es) 1983-10-04
RO80538B1 (ro) 1984-03-30
DE2732532C2 (de) 1986-04-17
DD127119A1 (me) 1977-09-07
YU39255B (en) 1984-10-31
DD127119B1 (me) 1981-05-27
CS225657B1 (en) 1984-02-13
YU222377A (en) 1982-02-28

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Legal Events

Date Code Title Description
HU90 Patent valid on 900628