JPS5683161A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS5683161A
JPS5683161A JP15990279A JP15990279A JPS5683161A JP S5683161 A JPS5683161 A JP S5683161A JP 15990279 A JP15990279 A JP 15990279A JP 15990279 A JP15990279 A JP 15990279A JP S5683161 A JPS5683161 A JP S5683161A
Authority
JP
Japan
Prior art keywords
data
receiver
scrambler
transmitter
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
JP15990279A
Other languages
Japanese (ja)
Inventor
Masafumi Fujikawa
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 JP15990279A priority Critical patent/JPS5683161A/en
Publication of JPS5683161A publication Critical patent/JPS5683161A/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
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling

Landscapes

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

Abstract

PURPOSE:To enable to identify the significance of data without insertion of specific data pattern, by transmitting the significant data with polarity conversion point and transmitting nonsignificant data in a given level, in transmitting digital data of a plurality of levels. CONSTITUTION:The data transmission system is constituted with a transmitter 6 having a transmitter 1 and a scrambler 2 and a receiver 7 having a descrambler 3, receiver 5 and identifier 4. Further, the clear signal from the transmitter 1 of the transmission device 6 is output as the status of 0, when the scrambler 2 is OFF to make it as nonsignificant data. Further, if ON, it acts like a scrambler, the input data is output with the polarity conversion point to make significant data. Moreover, the identifier 4 of the receiver 7 monitors the polarity conversion point of the reception data to output the significant data to the receiver 5, and the inversion from the scrambler 2 is made with the descrambler 3, the original data is reproduced and it is given to the receiver 5.
JP15990279A 1979-12-10 1979-12-10 Data transmission system Pending JPS5683161A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15990279A JPS5683161A (en) 1979-12-10 1979-12-10 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15990279A JPS5683161A (en) 1979-12-10 1979-12-10 Data transmission system

Publications (1)

Publication Number Publication Date
JPS5683161A true JPS5683161A (en) 1981-07-07

Family

ID=15703660

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15990279A Pending JPS5683161A (en) 1979-12-10 1979-12-10 Data transmission system

Country Status (1)

Country Link
JP (1) JPS5683161A (en)

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