JPS5675733A - Automatic equalizer - Google Patents

Automatic equalizer

Info

Publication number
JPS5675733A
JPS5675733A JP15267179A JP15267179A JPS5675733A JP S5675733 A JPS5675733 A JP S5675733A JP 15267179 A JP15267179 A JP 15267179A JP 15267179 A JP15267179 A JP 15267179A JP S5675733 A JPS5675733 A JP S5675733A
Authority
JP
Japan
Prior art keywords
circuit
circuits
gain
waveform
output
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
JP15267179A
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 JP15267179A priority Critical patent/JPS5675733A/en
Publication of JPS5675733A publication Critical patent/JPS5675733A/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 reject the interference between codes, by monitoring the result of correlation between the output waveform of a variable gain circuit and the waveform delaying it, and controlling the gain of an emphasis circuit. CONSTITUTION:The peak value of an output waveform of a variable gain circuit 2 is detected at a peak voltage detection circuit 10, and the gain of the variable gain circuit 2 is controlled with a control circuit 11. Thus, the peak value of the output is made constant. This output waveform and the waveform delayed with delaying circuits 61-6N are fed to correlation devices 71-7N to obtain the result of correlation. The peak value is detected with peak voltage detection circuits 81-8N and controlling circuits 101-10N control the gain of emphasis circuits 91-9N. Thus, the output of the emphasis circuit 9N rejects the interference between codes.
JP15267179A 1979-11-26 1979-11-26 Automatic equalizer Pending JPS5675733A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15267179A JPS5675733A (en) 1979-11-26 1979-11-26 Automatic equalizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15267179A JPS5675733A (en) 1979-11-26 1979-11-26 Automatic equalizer

Publications (1)

Publication Number Publication Date
JPS5675733A true JPS5675733A (en) 1981-06-23

Family

ID=15545547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15267179A Pending JPS5675733A (en) 1979-11-26 1979-11-26 Automatic equalizer

Country Status (1)

Country Link
JP (1) JPS5675733A (en)

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