JPS57159151A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS57159151A
JPS57159151A JP56044600A JP4460081A JPS57159151A JP S57159151 A JPS57159151 A JP S57159151A JP 56044600 A JP56044600 A JP 56044600A JP 4460081 A JP4460081 A JP 4460081A JP S57159151 A JPS57159151 A JP S57159151A
Authority
JP
Japan
Prior art keywords
transmission line
synchronism
open
wire
down stream
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
JP56044600A
Other languages
Japanese (ja)
Inventor
Shingo Yamane
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56044600A priority Critical patent/JPS57159151A/en
Publication of JPS57159151A publication Critical patent/JPS57159151A/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)
  • Small-Scale Networks (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

PURPOSE:To achieve bit-synchronism for transmission and reception units at down stream from the location of open wire, by transmitting an alternating pattern independently of data demodulation and effective to dependent type bit-synchronism only, to a sub-unit just after the down stream of open wire location in one wire loop transmission line. CONSTITUTION:In a data transmission line using one wire loop transmission line, if an open wire takes place, a reception pulse ''interruption'' generator 22 of a subtransmission/reception unit 20 just after the open wire position is operated. As a result, a switcher 25 is selected to the output side of an alternating pattern generator 24 for ''1'' and ''0'', and a free pattern being the alternating pattern of ''1'' and ''0'' is outputted to a subtransmission path transmission line 28 from a driver 26. Thus, the bit-synchronism of the transmission/reception unit at down stream than the open wired position can be assured.
JP56044600A 1981-03-25 1981-03-25 Data transmission system Pending JPS57159151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56044600A JPS57159151A (en) 1981-03-25 1981-03-25 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56044600A JPS57159151A (en) 1981-03-25 1981-03-25 Data transmission system

Publications (1)

Publication Number Publication Date
JPS57159151A true JPS57159151A (en) 1982-10-01

Family

ID=12695940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56044600A Pending JPS57159151A (en) 1981-03-25 1981-03-25 Data transmission system

Country Status (1)

Country Link
JP (1) JPS57159151A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004529A1 (en) * 1986-12-15 1988-06-30 Bernacchi Donald B Process for preparing storage stable, readily reconstituted frozen comestibles and frozen comestibles produced thereby

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004529A1 (en) * 1986-12-15 1988-06-30 Bernacchi Donald B Process for preparing storage stable, readily reconstituted frozen comestibles and frozen comestibles produced thereby

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