JPS5621480A - Transmission error correcting system - Google Patents

Transmission error correcting system

Info

Publication number
JPS5621480A
JPS5621480A JP9759579A JP9759579A JPS5621480A JP S5621480 A JPS5621480 A JP S5621480A JP 9759579 A JP9759579 A JP 9759579A JP 9759579 A JP9759579 A JP 9759579A JP S5621480 A JPS5621480 A JP S5621480A
Authority
JP
Japan
Prior art keywords
line
error
output
black
input
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
JP9759579A
Other languages
Japanese (ja)
Inventor
Eiichi Adachi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP9759579A priority Critical patent/JPS5621480A/en
Publication of JPS5621480A publication Critical patent/JPS5621480A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/409—Edge or detail enhancement; Noise or error suppression

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE:To prevent erroneous read, by substituting the line including an error with a black line and so on to record information in case that the error is detected by the receiving-side facsimile unit. CONSTITUTION:When the signal from the line is input to MODEM3 through line (h), MODEM3 demodulates it as an input signal to output data and a clock to lines (f) and (g) respectively. Data reproducing device 4 takes out coded data from the buffer memory and decodes it and outputs reproduced picture information to plotter 5 line by line through line (e). If an error is detected by data reproducing device 4, the error sign is output to line (d) simultaneously with output of the line-sink to line (b). When the error sign is output, switch SW is switched from 1 to 2, and black information BLK is input to plotter 5 through line (c), thus recording black lines.
JP9759579A 1979-07-31 1979-07-31 Transmission error correcting system Pending JPS5621480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9759579A JPS5621480A (en) 1979-07-31 1979-07-31 Transmission error correcting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9759579A JPS5621480A (en) 1979-07-31 1979-07-31 Transmission error correcting system

Publications (1)

Publication Number Publication Date
JPS5621480A true JPS5621480A (en) 1981-02-27

Family

ID=14196580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9759579A Pending JPS5621480A (en) 1979-07-31 1979-07-31 Transmission error correcting system

Country Status (1)

Country Link
JP (1) JPS5621480A (en)

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