DK486180A - Forstaerkerkobling med forudbestemmelig indre vekselstroemsmodstand - Google Patents

Forstaerkerkobling med forudbestemmelig indre vekselstroemsmodstand

Info

Publication number
DK486180A
DK486180A DK486180A DK486180A DK486180A DK 486180 A DK486180 A DK 486180A DK 486180 A DK486180 A DK 486180A DK 486180 A DK486180 A DK 486180A DK 486180 A DK486180 A DK 486180A
Authority
DK
Denmark
Prior art keywords
line
transistor
transmission line
resistor
amplifier circuit
Prior art date
Application number
DK486180A
Other languages
English (en)
Inventor
B Rall
Original Assignee
Licentia 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 Gmbh filed Critical Licentia Gmbh
Publication of DK486180A publication Critical patent/DK486180A/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/76—Compensating for differences in line impedance

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
DK486180A 1979-11-16 1980-11-14 Forstaerkerkobling med forudbestemmelig indre vekselstroemsmodstand DK486180A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2946306A DE2946306C2 (de) 1979-11-16 1979-11-16 Verstärkerschaltung mit vorgebbarem Wechselstrominnenwiderstand

Publications (1)

Publication Number Publication Date
DK486180A true DK486180A (da) 1981-05-17

Family

ID=6086165

Family Applications (1)

Application Number Title Priority Date Filing Date
DK486180A DK486180A (da) 1979-11-16 1980-11-14 Forstaerkerkobling med forudbestemmelig indre vekselstroemsmodstand

Country Status (4)

Country Link
EP (1) EP0029134B1 (da)
AT (1) ATE4404T1 (da)
DE (1) DE2946306C2 (da)
DK (1) DK486180A (da)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3401730A1 (de) * 1984-01-19 1985-07-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verstaerkerschaltung mit vorgebbarem wechselstrominnenwiderstand
US5049764A (en) * 1990-01-25 1991-09-17 North American Philips Corporation, Signetics Div. Active bypass for inhibiting high-frequency supply voltage variations in integrated circuits

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6412481A (da) * 1963-10-30 1965-05-03
GB1350205A (en) * 1970-07-24 1974-04-18 Post Office Telephone subscribers instrument circuits
SE386341B (sv) * 1974-03-29 1976-08-02 Ericsson Telefon Ab L M Kopplingsanordning vid en telefonapparat innefattande en likspenningsomvandlare.
CH592392A5 (en) * 1975-09-30 1977-10-31 Sodeco Compteurs De Geneve Telephone circuit without inductances - couples microphone amplifiers output to subscriber line and consists of DC feedback transistor in series with Zener diode
DE2610844A1 (de) * 1976-03-15 1977-09-22 Herbert Schoenke Integrierter mikrofonverstaerker
US4071713A (en) * 1976-12-27 1978-01-31 Northern Telecom Limited Telephone speech network
CA1056970A (en) * 1977-01-10 1979-06-19 Northern Telecom Limited Electronic network for telephone set

Also Published As

Publication number Publication date
EP0029134A1 (de) 1981-05-27
DE2946306A1 (de) 1981-05-21
DE2946306C2 (de) 1987-02-26
EP0029134B1 (de) 1983-08-03
ATE4404T1 (de) 1983-08-15

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Legal Events

Date Code Title Description
ATS Application withdrawn