JPS55153458A - Reproducing unit of data signal - Google Patents

Reproducing unit of data signal

Info

Publication number
JPS55153458A
JPS55153458A JP6180279A JP6180279A JPS55153458A JP S55153458 A JPS55153458 A JP S55153458A JP 6180279 A JP6180279 A JP 6180279A JP 6180279 A JP6180279 A JP 6180279A JP S55153458 A JPS55153458 A JP S55153458A
Authority
JP
Japan
Prior art keywords
level
data pulse
data
detected
comparator
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
JP6180279A
Other languages
Japanese (ja)
Inventor
Kazuhiko Yamashita
Yutaka Hirota
Kanji Odagi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6180279A priority Critical patent/JPS55153458A/en
Publication of JPS55153458A publication Critical patent/JPS55153458A/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
    • H04L25/20—Repeater circuits; Relay circuits
    • H04L25/24—Relay circuits using discharge tubes or semiconductor devices
    • H04L25/242—Relay circuits using discharge tubes or semiconductor devices with retiming

Abstract

PURPOSE:To accurately reproduce the data by setting the data punching level to an optimum value automatically, through the detection of positive and negative level of data pulse and the addition of the both detected level to the level comparator. CONSTITUTION:When the data signal including data pulse is fed to the terminal 2 and the timing signal in synchronizing with the data pulse is produced from the timing signal generator 7, the switch circuit 8 turns on every incoming data pulse and feeds the data pulse to the level detecting circuits 9 and 10, where the positive and negative peak voltage of the data pulse is detected, and the both detected outputs are added via the resistances 11a, 11b, and are fed to the reference input terminal 3 of the level comparator 1. The comparison voltage of the comparator 1 is varied with the output added and when the value of the resistances 11a, 11b is taken equal, the comparison voltage, that is, the punching level is automatically reached to an optimum value.
JP6180279A 1979-05-18 1979-05-18 Reproducing unit of data signal Pending JPS55153458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6180279A JPS55153458A (en) 1979-05-18 1979-05-18 Reproducing unit of data signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6180279A JPS55153458A (en) 1979-05-18 1979-05-18 Reproducing unit of data signal

Publications (1)

Publication Number Publication Date
JPS55153458A true JPS55153458A (en) 1980-11-29

Family

ID=13181579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6180279A Pending JPS55153458A (en) 1979-05-18 1979-05-18 Reproducing unit of data signal

Country Status (1)

Country Link
JP (1) JPS55153458A (en)

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