HU192075B - Device for adjusting adaptive digital filter-equalizer of one or more subscriber's units - Google Patents

Device for adjusting adaptive digital filter-equalizer of one or more subscriber's units Download PDF

Info

Publication number
HU192075B
HU192075B HU813228A HU322881A HU192075B HU 192075 B HU192075 B HU 192075B HU 813228 A HU813228 A HU 813228A HU 322881 A HU322881 A HU 322881A HU 192075 B HU192075 B HU 192075B
Authority
HU
Hungary
Prior art keywords
filter
output
filters
subscriber
circuit
Prior art date
Application number
HU813228A
Other languages
English (en)
Hungarian (hu)
Inventor
Lars T E 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 HU192075B publication Critical patent/HU192075B/hu

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/38Transceivers, 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
    • H04B1/40Circuits
    • H04B1/50Circuits using different frequencies for the two directions of communication
    • H04B1/52Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q11/00Selecting arrangements for multiplex systems
    • H04Q11/04Selecting arrangements for multiplex systems for time-division multiplexing
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00Networks using digital techniques
    • H03H17/0045Impedance matching networks
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00Networks using digital techniques
    • H03H17/02Frequency selective networks
    • H03H17/0248Filters characterised by a particular frequency response or filtering method
    • H03H17/0264Filter sets with mutual related characteristics
    • H03H17/0266Filter banks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/38Transceivers, 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
    • H04B1/40Circuits
    • H04B1/54Circuits using the same frequency for two directions of communication
    • H04B1/58Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/586Hybrid 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
    • 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

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)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Networks Using Active Elements (AREA)
HU813228A 1980-07-01 1981-06-29 Device for adjusting adaptive digital filter-equalizer of one or more subscriber's units HU192075B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8004848A SE419924B (sv) 1980-07-01 1980-07-01 Anordning for instellning av ett adaptivt digitalt balansfilter ingaende i en abonnentenhet
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 (1)

Publication Number Publication Date
HU192075B true HU192075B (en) 1987-05-28

Family

ID=20341344

Family Applications (1)

Application Number Title Priority Date Filing Date
HU813228A HU192075B (en) 1980-07-01 1981-06-29 Device for adjusting adaptive digital filter-equalizer of one or more subscriber's units

Country Status (21)

Country Link
EP (1) EP0055279B1 (OSRAM)
JP (1) JPS57500907A (OSRAM)
KR (1) KR840002490B1 (OSRAM)
AR (1) AR226904A1 (OSRAM)
BR (1) BR8108897A (OSRAM)
CA (1) CA1170382A (OSRAM)
DE (1) DE3162279D1 (OSRAM)
DK (1) DK150435C (OSRAM)
ES (1) ES503541A0 (OSRAM)
FI (1) FI65151C (OSRAM)
GR (1) GR82632B (OSRAM)
HU (1) HU192075B (OSRAM)
IE (1) IE51865B1 (OSRAM)
IN (1) IN155930B (OSRAM)
IT (1) IT1137952B (OSRAM)
MX (1) MX149625A (OSRAM)
MY (1) MY8500574A (OSRAM)
NO (1) NO152529C (OSRAM)
SE (1) SE419924B (OSRAM)
WO (1) WO1982000230A1 (OSRAM)
YU (1) YU42573B (OSRAM)

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
DE3440591C2 (de) * 1984-11-07 1987-01-02 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
FI65151C (fi) 1984-03-12
YU163481A (en) 1983-06-30
FI822335A0 (fi) 1982-06-30
DK87582A (da) 1982-02-26
AR226904A1 (es) 1982-08-31
BR8108897A (pt) 1982-10-26
NO152529B (no) 1985-07-01
SE419924B (sv) 1981-08-31
DE3162279D1 (en) 1984-03-22
IE811267L (en) 1982-01-01
FI822335L (fi) 1982-06-30
ES8301401A1 (es) 1982-11-16
IE51865B1 (en) 1987-04-15
JPS57500907A (OSRAM) 1982-05-20
IT1137952B (it) 1986-09-10
DK150435B (da) 1987-02-23
NO820625L (no) 1982-02-26
IT8122609A0 (it) 1981-06-26
NO152529C (no) 1985-10-09
FI65151B (fi) 1983-11-30
CA1170382A (en) 1984-07-03
DK150435C (da) 1988-01-04
KR830007016A (ko) 1983-10-12
MX149625A (es) 1983-12-02
EP0055279A1 (en) 1982-07-07
GR82632B (OSRAM) 1985-02-07
ES503541A0 (es) 1982-11-16
MY8500574A (en) 1985-12-31
WO1982000230A1 (en) 1982-01-21
YU42573B (en) 1988-10-31
KR840002490B1 (ko) 1984-12-31
IN155930B (OSRAM) 1985-03-23
EP0055279B1 (en) 1984-02-15

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Legal Events

Date Code Title Description
HU90 Patent valid on 900628
HMM4 Cancellation of final prot. due to non-payment of fee