DK656787D0 - Telekommunikationskredsloeb - Google Patents

Telekommunikationskredsloeb

Info

Publication number
DK656787D0
DK656787D0 DK656787A DK656787A DK656787D0 DK 656787 D0 DK656787 D0 DK 656787D0 DK 656787 A DK656787 A DK 656787A DK 656787 A DK656787 A DK 656787A DK 656787 D0 DK656787 D0 DK 656787D0
Authority
DK
Denmark
Prior art keywords
transistor
telecommunication circuit
resistor
line
series
Prior art date
Application number
DK656787A
Other languages
English (en)
Other versions
DK656787A (da
Inventor
Elve Desiderius Jozef Moons
Jozef Dirck Guido Le Cannaerts
Original Assignee
Alcatel Nv
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 Alcatel Nv filed Critical Alcatel Nv
Publication of DK656787D0 publication Critical patent/DK656787D0/da
Publication of DK656787A publication Critical patent/DK656787A/da

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/60Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6025Substation equipment, e.g. for use by subscribers including speech amplifiers implemented as integrated speech networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/738Interface circuits for coupling substations to external telephone lines
    • H04M1/76Compensating for differences in line impedance
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M19/00Current supply arrangements for telephone systems
    • H04M19/08Current supply arrangements for telephone systems with current supply sources at the substations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M9/00Arrangements for interconnection not involving centralised switching
    • H04M9/08Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Burglar Alarm Systems (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Circuits Of Receivers In General (AREA)
  • Interface Circuits In Exchanges (AREA)
DK656787A 1986-12-16 1987-12-15 Telekommunikationskredsloeb DK656787A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2/61110A BE905921A (nl) 1986-12-16 1986-12-16 Telecommunicatie-inrichting en daarin gebruikte ketens.

Publications (2)

Publication Number Publication Date
DK656787D0 true DK656787D0 (da) 1987-12-15
DK656787A DK656787A (da) 1988-06-17

Family

ID=3865843

Family Applications (1)

Application Number Title Priority Date Filing Date
DK656787A DK656787A (da) 1986-12-16 1987-12-15 Telekommunikationskredsloeb

Country Status (7)

Country Link
EP (1) EP0271946B1 (da)
AT (1) ATE110512T1 (da)
AU (1) AU605524B2 (da)
BE (1) BE905921A (da)
DE (1) DE3750425T2 (da)
DK (1) DK656787A (da)
ES (1) ES2062976T3 (da)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE905921A (nl) * 1986-12-16 1987-06-16 Bell Telephone Mfg Telecommunicatie-inrichting en daarin gebruikte ketens.
ATE103450T1 (de) * 1990-01-29 1994-04-15 Siemens Ag Verfahren und anordnung zur bildung des leitungsabschlusses einer telefonleitung.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1546046A (en) * 1976-12-03 1979-05-16 Cselt Centro Studi Lab Telecom Transmitting and receiving circuit for subscriber telephone sets
NL8200666A (nl) * 1982-02-19 1983-09-16 Philips Nv Transmissieschakeling voor een elektronisch telefoontoestel.
GB8317706D0 (en) * 1983-06-29 1983-08-03 Standard Telephones Cables Ltd Telephone subsets
BE898049A (nl) * 1983-10-21 1984-04-24 Bell Telephone Mfg Telecommunicatielijnketen en bijbehorende spanningsomzetter.
NL8400508A (nl) * 1984-02-17 1985-09-16 Philips Nv Audiotransmissiecircuit met als lijnspanningsstabilisator uitgevoerde zendversterker.
BE905921A (nl) * 1986-12-16 1987-06-16 Bell Telephone Mfg Telecommunicatie-inrichting en daarin gebruikte ketens.

Also Published As

Publication number Publication date
EP0271946A2 (en) 1988-06-22
AU8216187A (en) 1988-06-16
ATE110512T1 (de) 1994-09-15
ES2062976T3 (es) 1995-01-01
DK656787A (da) 1988-06-17
EP0271946B1 (en) 1994-08-24
DE3750425T2 (de) 1995-04-27
BE905921A (nl) 1987-06-16
EP0271946A3 (en) 1990-04-04
DE3750425D1 (de) 1994-09-29
AU605524B2 (en) 1991-01-17

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment