JPS5466008A - Suppressing circuit for dc component - Google Patents

Suppressing circuit for dc component

Info

Publication number
JPS5466008A
JPS5466008A JP13250277A JP13250277A JPS5466008A JP S5466008 A JPS5466008 A JP S5466008A JP 13250277 A JP13250277 A JP 13250277A JP 13250277 A JP13250277 A JP 13250277A JP S5466008 A JPS5466008 A JP S5466008A
Authority
JP
Japan
Prior art keywords
circuit
component
polarity
inverts
break
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.)
Granted
Application number
JP13250277A
Other languages
Japanese (ja)
Other versions
JPS5756990B2 (en
Inventor
Toshihiko Wakahara
Kazuchika Watanabe
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP13250277A priority Critical patent/JPS5466008A/en
Publication of JPS5466008A publication Critical patent/JPS5466008A/en
Publication of JPS5756990B2 publication Critical patent/JPS5756990B2/ja
Granted 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
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • H04L25/062—Setting decision thresholds using feedforward techniques only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Dc Digital Transmission (AREA)

Abstract

PURPOSE:To enable a simply-constituted circuit to prevent deterioration due to a DC break, by suppressing a DC component by a code converter circuit which inverts the polarity of a signal or controls it as it is depending upon the integration value of a transmitting signal. CONSTITUTION:Integrating circuit 7 integrates an output voltage, and comparator circuit 8 compares the output of circuit 7 with a preset reference voltage. Then, its DC component is suppressed by providing gate circuit 3 which inverts 4 the polarity of the output voltage or controls it as a positive-polarity code is judging from the result of circuit 8. Consequently, deterioration due to a DC break can be prevented with simple constitution.
JP13250277A 1977-11-07 1977-11-07 Suppressing circuit for dc component Granted JPS5466008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13250277A JPS5466008A (en) 1977-11-07 1977-11-07 Suppressing circuit for dc component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13250277A JPS5466008A (en) 1977-11-07 1977-11-07 Suppressing circuit for dc component

Publications (2)

Publication Number Publication Date
JPS5466008A true JPS5466008A (en) 1979-05-28
JPS5756990B2 JPS5756990B2 (en) 1982-12-02

Family

ID=15082855

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13250277A Granted JPS5466008A (en) 1977-11-07 1977-11-07 Suppressing circuit for dc component

Country Status (1)

Country Link
JP (1) JPS5466008A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2642592A1 (en) * 1989-01-30 1990-08-03 Klibanov Elvard Process and device for stationary-phase angular modulation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2642592A1 (en) * 1989-01-30 1990-08-03 Klibanov Elvard Process and device for stationary-phase angular modulation

Also Published As

Publication number Publication date
JPS5756990B2 (en) 1982-12-02

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