JPS5521644A - Equalizer - Google Patents

Equalizer

Info

Publication number
JPS5521644A
JPS5521644A JP9458978A JP9458978A JPS5521644A JP S5521644 A JPS5521644 A JP S5521644A JP 9458978 A JP9458978 A JP 9458978A JP 9458978 A JP9458978 A JP 9458978A JP S5521644 A JPS5521644 A JP S5521644A
Authority
JP
Japan
Prior art keywords
equalizer
circuit
output
outputs
automatically
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
JP9458978A
Other languages
Japanese (ja)
Inventor
Katsuji Matsuoka
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP9458978A priority Critical patent/JPS5521644A/en
Publication of JPS5521644A publication Critical patent/JPS5521644A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/14—Control of transmission; Equalising characterised by the equalising network used

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To enable to set the performance of equalizer automatically, by controlling the variable equalizer through the difference between the outputs of the sample hold circuit and the peak detection circuit, by using the differential circuit. CONSTITUTION:The variable equalizer which can be set for the characteristics externally is inserted between the input terminal 1 and the output terminal 4. Further, the sample hold circuit 16 is connected to the output of the equalizer 15, to hold the step level of the response waveform of the phase matching signal and the pre-shoot and overshoot amount of the transient phenomenon are detected by being connected to the output of the equalizer 15 with the peak detection circuit 17. Further, the differential circuit 18 controls the equalizer 15 by obtaining the difference between the outputs of the circuits 16 and 17. Thus, by judging the characteristics of the transmission line with the response waveform of the step input signal, the setting of the characteristics of the equalizer can automatically be made.
JP9458978A 1978-08-04 1978-08-04 Equalizer Pending JPS5521644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9458978A JPS5521644A (en) 1978-08-04 1978-08-04 Equalizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9458978A JPS5521644A (en) 1978-08-04 1978-08-04 Equalizer

Publications (1)

Publication Number Publication Date
JPS5521644A true JPS5521644A (en) 1980-02-15

Family

ID=14114455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9458978A Pending JPS5521644A (en) 1978-08-04 1978-08-04 Equalizer

Country Status (1)

Country Link
JP (1) JPS5521644A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58177218U (en) * 1982-05-20 1983-11-26 日立造船株式会社 Bead removal equipment in square steel pipe manufacturing equipment
JPS59161117A (en) * 1983-03-04 1984-09-11 Nec Corp Switched capacitor type cable equalizer
JPS60117926A (en) * 1983-11-30 1985-06-25 Nec Home Electronics Ltd Fm tuner
JPS6253842U (en) * 1985-09-21 1987-04-03
FR2683695A1 (en) * 1991-11-12 1993-05-14 Carpentier Claude Method and device for dynamic equalisation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5478950A (en) * 1977-12-07 1979-06-23 Hitachi Ltd Automatic equalizer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5478950A (en) * 1977-12-07 1979-06-23 Hitachi Ltd Automatic equalizer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58177218U (en) * 1982-05-20 1983-11-26 日立造船株式会社 Bead removal equipment in square steel pipe manufacturing equipment
JPS6142734Y2 (en) * 1982-05-20 1986-12-04
JPS59161117A (en) * 1983-03-04 1984-09-11 Nec Corp Switched capacitor type cable equalizer
JPH0311567B2 (en) * 1983-03-04 1991-02-18 Nippon Denki Kk
JPS60117926A (en) * 1983-11-30 1985-06-25 Nec Home Electronics Ltd Fm tuner
JPS6253842U (en) * 1985-09-21 1987-04-03
FR2683695A1 (en) * 1991-11-12 1993-05-14 Carpentier Claude Method and device for dynamic equalisation

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