NL185886C - Tijdverdeelde gemultipelde centrale. - Google Patents

Tijdverdeelde gemultipelde centrale.

Info

Publication number
NL185886C
NL185886C NLAANVRAGE7904218,A NL7904218A NL185886C NL 185886 C NL185886 C NL 185886C NL 7904218 A NL7904218 A NL 7904218A NL 185886 C NL185886 C NL 185886C
Authority
NL
Netherlands
Prior art keywords
time divided
divided multiple
multiple plan
plan
time
Prior art date
Application number
NLAANVRAGE7904218,A
Other languages
English (en)
Dutch (nl)
Other versions
NL185886B (nl
NL7904218A (nl
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of NL7904218A publication Critical patent/NL7904218A/xx
Publication of NL185886B publication Critical patent/NL185886B/xx
Application granted granted Critical
Publication of NL185886C publication Critical patent/NL185886C/xx

Links

Classifications

    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03114—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals
    • H04L25/03146—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals with a recursive structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
NLAANVRAGE7904218,A 1978-06-02 1979-05-29 Tijdverdeelde gemultipelde centrale. NL185886C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6581878A JPS54157407A (en) 1978-06-02 1978-06-02 Level control unit for time-division exchange

Publications (3)

Publication Number Publication Date
NL7904218A NL7904218A (nl) 1979-12-04
NL185886B NL185886B (nl) 1990-03-01
NL185886C true NL185886C (nl) 1990-08-01

Family

ID=13297978

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7904218,A NL185886C (nl) 1978-06-02 1979-05-29 Tijdverdeelde gemultipelde centrale.

Country Status (5)

Country Link
US (1) US4261051A (xx)
JP (1) JPS54157407A (xx)
CA (1) CA1124821A (xx)
GB (1) GB2022367B (xx)
NL (1) NL185886C (xx)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2066023B (en) * 1979-12-13 1983-11-09 Standard Telephones Cables Ltd Telephone line interface
US5305378A (en) * 1980-01-07 1994-04-19 Telefonaktiebolaget Lm Ericsson Arrangement for adjusting an adaptive digital filter included in a subscriber unit
BR8009085A (pt) * 1980-06-18 1982-05-11 Ericsson Telefon Ab L M Aparelho de circuito de processamento de audio para linha de assinante
US4386430A (en) * 1980-10-23 1983-05-31 International Telephone And Telegraph Corporation Automatic equalizer for synthesizing recursive filters
US4381561A (en) * 1980-10-23 1983-04-26 International Telephone And Telegraph Corporation All digital LSI line circuit for analog lines
US4377858A (en) * 1980-10-23 1983-03-22 International Telephone And Telegraph Corporation Digital two-to-four wire converter for full duplex signals
US4351060A (en) * 1980-10-23 1982-09-21 International Telephone And Telegraph Corporation Automatic, digitally synthesized matching line terminating impedance
US4435823A (en) 1980-12-29 1984-03-06 Harris Corporation Adaptive equalizer capable of linear and nonlinear weighting
US4456991A (en) * 1981-09-18 1984-06-26 International Telephone And Telegraph Corporation Telephone line circuit and system
SE426765B (sv) * 1981-11-02 1983-02-07 Ellemtel Utvecklings Ab Balansfilter av fir-typ ingaende i sendar-mottagarenheten i ett telekommunikationssystem
US4530086A (en) * 1982-04-22 1985-07-16 International Telephone And Telegraph Corporation Processor controlled adjustment of line circuit transmission parameters
AU583222B2 (en) * 1985-08-20 1989-04-20 Mitsubishi Denki Kabushiki Kaisha Equalizer and equalizing circuit using the same
GB2180430B (en) * 1985-09-05 1989-08-23 Motorola Inc Subscriber line card arrangement
JPH01264493A (ja) * 1988-04-15 1989-10-20 Nec Corp 通話レベル補償方式
JP3317259B2 (ja) * 1998-12-17 2002-08-26 日本電気株式会社 ベースバンド信号多重回路とその送信レベル制御方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699325A (en) * 1969-10-09 1972-10-17 Shell Oil Co Time-shared instantaneous gain-ranging amplifier
US3823275A (en) * 1972-08-10 1974-07-09 Bell Telephone Labor Inc Common control digital echo suppressor
US3828145A (en) * 1973-03-21 1974-08-06 Bell Telephone Labor Inc Communication system hybrid balance arrangement
US4051332A (en) * 1973-08-20 1977-09-27 Nippon Telegraph And Telephone Public Corporation Multiplex digital echo suppression system
JPS51132713A (en) * 1975-05-14 1976-11-18 Hitachi Ltd Time-division communication system
FR2379946A1 (fr) * 1977-02-04 1978-09-01 Labo Cent Telecommunicat Filtre numerique
GB1596943A (en) 1978-02-14 1981-09-03 Itt Ind Ltd Level control of digital signals

Also Published As

Publication number Publication date
GB2022367B (en) 1982-07-14
NL185886B (nl) 1990-03-01
US4261051A (en) 1981-04-07
JPS54157407A (en) 1979-12-12
GB2022367A (en) 1979-12-12
NL7904218A (nl) 1979-12-04
CA1124821A (en) 1982-06-01
JPS5719920B2 (xx) 1982-04-24

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Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V4 Lapsed because of reaching the maximum lifetime of a patent

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