JPS5793757A - Common control code converting circuit - Google Patents

Common control code converting circuit

Info

Publication number
JPS5793757A
JPS5793757A JP16989380A JP16989380A JPS5793757A JP S5793757 A JPS5793757 A JP S5793757A JP 16989380 A JP16989380 A JP 16989380A JP 16989380 A JP16989380 A JP 16989380A JP S5793757 A JPS5793757 A JP S5793757A
Authority
JP
Japan
Prior art keywords
code
information
mode
weight
converter
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
JP16989380A
Other languages
Japanese (ja)
Inventor
Koji Nishizaki
Masanori Arai
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16989380A priority Critical patent/JPS5793757A/en
Publication of JPS5793757A publication Critical patent/JPS5793757A/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
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)

Abstract

PURPOSE:To achieve a common control code conversion circuit with simple circuit constitution, by providing a mode switching function in a code converter. CONSTITUTION:A code converter 6 which outputs an information with code conversion through the input of a digital information and a mode selection information, and a mode selection information for the next digital information, and a delay circuit which delays the mode selection information outputted from the converter 6 and feeds it back to the converter 6, are provided. Relating to the code conversion of weight 1 for m1 and weight 3 for m2 of mode selecting information m1, m2, the discrimination is made for the odd or even number order, depending if m1, m2 are 0 or 1 and conversion is made with different mode. Mode selecting information m1', m2' to be outputted is the inversion of the m1 as to the code of weight 1 and the inversion of m2 as to the code of weight 3. The transmission line code having uniform probability of appearance of 0, 1 can be outputted by making the mode selection continuously.
JP16989380A 1980-12-02 1980-12-02 Common control code converting circuit Pending JPS5793757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16989380A JPS5793757A (en) 1980-12-02 1980-12-02 Common control code converting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16989380A JPS5793757A (en) 1980-12-02 1980-12-02 Common control code converting circuit

Publications (1)

Publication Number Publication Date
JPS5793757A true JPS5793757A (en) 1982-06-10

Family

ID=15894909

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16989380A Pending JPS5793757A (en) 1980-12-02 1980-12-02 Common control code converting circuit

Country Status (1)

Country Link
JP (1) JPS5793757A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169253A (en) * 1983-03-16 1984-09-25 Hitachi Ltd Code converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169253A (en) * 1983-03-16 1984-09-25 Hitachi Ltd Code converter

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