ES477655A1 - Un enlace telefonico para transmision digital. - Google Patents

Un enlace telefonico para transmision digital.

Info

Publication number
ES477655A1
ES477655A1 ES477655A ES477655A ES477655A1 ES 477655 A1 ES477655 A1 ES 477655A1 ES 477655 A ES477655 A ES 477655A ES 477655 A ES477655 A ES 477655A ES 477655 A1 ES477655 A1 ES 477655A1
Authority
ES
Spain
Prior art keywords
level control
digital
digital signals
bits
words
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES477655A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Espana SA filed Critical Alcatel Espana SA
Publication of ES477655A1 publication Critical patent/ES477655A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/002—Control of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals

Landscapes

  • Time-Division Multiplex Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

Un enlace telefónico para transmisión digital, que incluye una pluralidad de canales de comunicaciones multiplexados en tiempo, pudiendo cada uno de dichos canales transmitir diversas palabras digitales de n-bits, teniendo un control de nivel digital para proporcionar una ganancia o atenuación selectiva de dichas palabras digitales de n-bits.
ES477655A 1978-02-14 1979-02-13 Un enlace telefonico para transmision digital. Expired ES477655A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5812/78A GB1596943A (en) 1978-02-14 1978-02-14 Level control of digital signals

Publications (1)

Publication Number Publication Date
ES477655A1 true ES477655A1 (es) 1979-10-16

Family

ID=9803077

Family Applications (1)

Application Number Title Priority Date Filing Date
ES477655A Expired ES477655A1 (es) 1978-02-14 1979-02-13 Un enlace telefonico para transmision digital.

Country Status (13)

Country Link
JP (1) JPS54114913A (es)
AU (1) AU529904B2 (es)
BE (1) BE874142A (es)
BR (1) BR7900884A (es)
DE (1) DE2905080A1 (es)
DK (1) DK58979A (es)
ES (1) ES477655A1 (es)
FR (1) FR2417221A1 (es)
GB (1) GB1596943A (es)
MX (1) MX145798A (es)
NL (1) NL7900757A (es)
NO (1) NO148240C (es)
SE (1) SE7901179L (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54157407A (en) 1978-06-02 1979-12-12 Hitachi Ltd Level control unit for time-division exchange
US4272648A (en) * 1979-11-28 1981-06-09 International Telephone And Telegraph Corporation Gain control apparatus for digital telephone line circuits
DE3107046A1 (de) * 1981-02-25 1982-09-09 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum verbinden von analog-signale abgebenden sendeeinrichtungen mit analog-signale aufnehmenden empfangseinrichtungen ueber eine zeitmultiplex-datenvermittlungsanlage
GB8322440D0 (en) * 1983-08-19 1983-09-21 Gen Electric Co Plc Frequency division multiplex transmission equipment
JP2704617B2 (ja) * 1987-09-01 1998-01-26 株式会社 高見沢サイバネティックス 小型地震計

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2247858B1 (es) * 1973-09-27 1976-06-18 Ibm France

Also Published As

Publication number Publication date
MX145798A (es) 1982-04-02
NO790461L (no) 1979-08-15
BR7900884A (pt) 1979-09-11
DE2905080A1 (de) 1979-09-20
JPS54114913A (en) 1979-09-07
FR2417221A1 (fr) 1979-09-07
AU529904B2 (en) 1983-06-23
GB1596943A (en) 1981-09-03
AU4406979A (en) 1979-08-23
NO148240B (no) 1983-05-24
DK58979A (da) 1979-08-15
NO148240C (no) 1983-08-31
NL7900757A (nl) 1979-08-16
SE7901179L (sv) 1979-08-15
BE874142A (fr) 1979-08-14

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