ES477655A1 - Level control of digital signals - Google Patents

Level control of digital signals

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
Spanish (es)
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/en
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

A telephone link for digital transmission, which includes a plurality of communication channels multiplexed in time, each of said channels being able to transmit various digital words of N-bits, having a digital level control to provide a selective gain or attenuation of said words digital N-bits. (Machine-translation by Google Translate, not legally binding)
ES477655A 1978-02-14 1979-02-13 Level control of digital signals Expired ES477655A1 (en)

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 (en) 1979-10-16

Family

ID=9803077

Family Applications (1)

Application Number Title Priority Date Filing Date
ES477655A Expired ES477655A1 (en) 1978-02-14 1979-02-13 Level control of digital signals

Country Status (13)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272648A (en) * 1979-11-28 1981-06-09 International Telephone And Telegraph Corporation Gain control apparatus for digital telephone line circuits
DE3107046A1 (en) * 1981-02-25 1982-09-09 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR CONNECTING TRANSMITTERS SIGNALING ANALOG SIGNALS TO RECEIVING DEVICES RECEIVING ANALOG SIGNALS VIA A TIME-MULTIPLEX DATA-SWITCHING SYSTEM
GB8322440D0 (en) * 1983-08-19 1983-09-21 Gen Electric Co Plc Frequency division multiplex transmission equipment
JP2704617B2 (en) * 1987-09-01 1998-01-26 株式会社 高見沢サイバネティックス Small seismometer

Family Cites Families (1)

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

Also Published As

Publication number Publication date
DE2905080A1 (en) 1979-09-20
NO790461L (en) 1979-08-15
BR7900884A (en) 1979-09-11
BE874142A (en) 1979-08-14
NO148240C (en) 1983-08-31
FR2417221A1 (en) 1979-09-07
JPS54114913A (en) 1979-09-07
AU4406979A (en) 1979-08-23
MX145798A (en) 1982-04-02
SE7901179L (en) 1979-08-15
DK58979A (en) 1979-08-15
NO148240B (en) 1983-05-24
AU529904B2 (en) 1983-06-23
NL7900757A (en) 1979-08-16
GB1596943A (en) 1981-09-03

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