DK150435C - Kredsloeb til indstilling af adaptivt digitalt balancefilter, der indgaar i en abonnentenhed - Google Patents

Kredsloeb til indstilling af adaptivt digitalt balancefilter, der indgaar i en abonnentenhed

Info

Publication number
DK150435C
DK150435C DK087582A DK87582A DK150435C DK 150435 C DK150435 C DK 150435C DK 087582 A DK087582 A DK 087582A DK 87582 A DK87582 A DK 87582A DK 150435 C DK150435 C DK 150435C
Authority
DK
Denmark
Prior art keywords
circuit
adaptive digital
filter included
balance filter
subscription unit
Prior art date
Application number
DK087582A
Other languages
English (en)
Other versions
DK150435B (da
DK87582A (da
Inventor
Lars Tommy Edward Svensson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of DK87582A publication Critical patent/DK87582A/da
Publication of DK150435B publication Critical patent/DK150435B/da
Application granted granted Critical
Publication of DK150435C publication Critical patent/DK150435C/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/0045—Impedance matching networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0266—Filter banks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/586—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using an electronic circuit
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Networks Using Active Elements (AREA)
DK087582A 1980-07-01 1982-02-26 Kredsloeb til indstilling af adaptivt digitalt balancefilter, der indgaar i en abonnentenhed DK150435C (da)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8004848 1980-07-01
SE8004848A SE419924B (sv) 1980-07-01 1980-07-01 Anordning for instellning av ett adaptivt digitalt balansfilter ingaende i en abonnentenhet
SE8100194 1981-06-29
PCT/SE1981/000194 WO1982000230A1 (en) 1980-07-01 1981-06-29 Arrangement for adjusting an adaptive digital balance filter included in a subscriber unit

Publications (3)

Publication Number Publication Date
DK87582A DK87582A (da) 1982-02-26
DK150435B DK150435B (da) 1987-02-23
DK150435C true DK150435C (da) 1988-01-04

Family

ID=20341344

Family Applications (1)

Application Number Title Priority Date Filing Date
DK087582A DK150435C (da) 1980-07-01 1982-02-26 Kredsloeb til indstilling af adaptivt digitalt balancefilter, der indgaar i en abonnentenhed

Country Status (21)

Country Link
EP (1) EP0055279B1 (da)
JP (1) JPS57500907A (da)
KR (1) KR840002490B1 (da)
AR (1) AR226904A1 (da)
BR (1) BR8108897A (da)
CA (1) CA1170382A (da)
DE (1) DE3162279D1 (da)
DK (1) DK150435C (da)
ES (1) ES8301401A1 (da)
FI (1) FI65151C (da)
GR (1) GR82632B (da)
HU (1) HU192075B (da)
IE (1) IE51865B1 (da)
IN (1) IN155930B (da)
IT (1) IT1137952B (da)
MX (1) MX149625A (da)
MY (1) MY8500574A (da)
NO (1) NO152529C (da)
SE (1) SE419924B (da)
WO (1) WO1982000230A1 (da)
YU (1) YU42573B (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3409877A1 (de) * 1984-03-17 1985-09-19 Neumann Elektronik GmbH, 4330 Mülheim Einrichtung zur optimalen anpassung einer gabelschaltung an eine fernmeldeleitung
DE3440591A1 (de) * 1984-11-07 1986-05-22 Neumann Elektronik GmbH, 4330 Mülheim Einrichtung zur optimalen anpassung einer gabelschaltung an eine fernmeldeleitung
IT1259009B (it) * 1992-07-24 1996-03-11 Italtel Telematica Metodo e dispositivo per l'adattamento delle impedenze della terminazione di utente e dell'attacco di utente alla impedenza caratteristica della linea telefonica di utente
DE19921850A1 (de) * 1999-05-11 2000-11-16 Bosch Gmbh Robert Verfahren zur Fehlersuche bei analogen Teilnehmeranschlüssen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3982080A (en) * 1975-01-16 1976-09-21 Bell Telephone Laboratories, Incorporated Automatic cable balancing network
JPS5248949A (en) * 1975-10-17 1977-04-19 Nippon Hoso Kyokai <Nhk> Line impedance matching unit

Also Published As

Publication number Publication date
AR226904A1 (es) 1982-08-31
MX149625A (es) 1983-12-02
MY8500574A (en) 1985-12-31
IT1137952B (it) 1986-09-10
JPS57500907A (da) 1982-05-20
NO152529B (no) 1985-07-01
FI65151B (fi) 1983-11-30
YU42573B (en) 1988-10-31
GR82632B (da) 1985-02-07
IN155930B (da) 1985-03-23
SE419924B (sv) 1981-08-31
EP0055279A1 (en) 1982-07-07
FI822335L (fi) 1982-06-30
FI822335A0 (fi) 1982-06-30
WO1982000230A1 (en) 1982-01-21
KR840002490B1 (ko) 1984-12-31
CA1170382A (en) 1984-07-03
BR8108897A (pt) 1982-10-26
DK150435B (da) 1987-02-23
IE51865B1 (en) 1987-04-15
IT8122609A0 (it) 1981-06-26
EP0055279B1 (en) 1984-02-15
ES503541A0 (es) 1982-11-16
DE3162279D1 (en) 1984-03-22
NO152529C (no) 1985-10-09
DK87582A (da) 1982-02-26
NO820625L (no) 1982-02-26
FI65151C (fi) 1984-03-12
HU192075B (en) 1987-05-28
YU163481A (en) 1983-06-30
ES8301401A1 (es) 1982-11-16
IE811267L (en) 1982-01-01
KR830007016A (ko) 1983-10-12

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Legal Events

Date Code Title Description
PBP Patent lapsed