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JPS5684043A - Automatic equalizer - Google Patents

Automatic equalizer

Info

Publication number
JPS5684043A
JPS5684043A JP16195779A JP16195779A JPS5684043A JP S5684043 A JPS5684043 A JP S5684043A JP 16195779 A JP16195779 A JP 16195779A JP 16195779 A JP16195779 A JP 16195779A JP S5684043 A JPS5684043 A JP S5684043A
Authority
JP
Japan
Prior art keywords
circuits
emphasis
outputs
codes
gains
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.)
Pending
Application number
JP16195779A
Other languages
Japanese (ja)
Inventor
Masaru Yamaguchi
Fumio Akashi
Toru Koyama
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP16195779A priority Critical patent/JPS5684043A/en
Publication of JPS5684043A publication Critical patent/JPS5684043A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Networks Using Active Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To remove interference between codes by adjusting gains of emphasis circuits at an equivalent frequency according to whether output voltage of peak detecting circuits are greater or less than a reference voltage. CONSTITUTION:When interference between codes occurs in the output of adder 5, output levels of peak voltage detecting circuits 71, 72-7N are over or under the reference level. When those output levels are greater than reference voltage Vref, outputs of control circuits 81,82-8N decrease and consequently, gains of emphasis circuits 91, 92-9N are decreased. On the other hand, when output levels of peak voltage detecting circuits 71, 72-7N are less than reference voltage Vref, outputs of control circuits 81, 82-8N increase, and consequently gains of emphasis circuits 91, 92-9N are increased. Such control eliminates the interference between codes by making use of the outputs of emphasis circuits.
JP16195779A 1979-12-13 1979-12-13 Automatic equalizer Pending JPS5684043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16195779A JPS5684043A (en) 1979-12-13 1979-12-13 Automatic equalizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16195779A JPS5684043A (en) 1979-12-13 1979-12-13 Automatic equalizer

Publications (1)

Publication Number Publication Date
JPS5684043A true JPS5684043A (en) 1981-07-09

Family

ID=15745269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16195779A Pending JPS5684043A (en) 1979-12-13 1979-12-13 Automatic equalizer

Country Status (1)

Country Link
JP (1) JPS5684043A (en)

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