JPS5741050A - Code error correcting circuit - Google Patents

Code error correcting circuit

Info

Publication number
JPS5741050A
JPS5741050A JP11660680A JP11660680A JPS5741050A JP S5741050 A JPS5741050 A JP S5741050A JP 11660680 A JP11660680 A JP 11660680A JP 11660680 A JP11660680 A JP 11660680A JP S5741050 A JPS5741050 A JP S5741050A
Authority
JP
Japan
Prior art keywords
data
code error
case
error rate
circuit
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
JP11660680A
Other languages
Japanese (ja)
Inventor
Nagayasu Harada
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 JP11660680A priority Critical patent/JPS5741050A/en
Publication of JPS5741050A publication Critical patent/JPS5741050A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To raise the efficiency of transmission of a data, by constituting so that the same frame is transmitted only once in case when a code error rate in trnsmitting a data is low, and the same frame is transmitted three times continuously in case when its code error rate is high. CONSTITUTION:A CPU8 decides whether a code error rate in case of transmitting a data is good or not, from a data of a result of check by a CRC circuit 7, and S/N in the data transmission line, etc. For instance, now, the CPU8 decides that the code error rate is low, and sets a mode so that 1 frame is transmitted only once. In this case, logic on a conductor 81 is inverted, and as a result, a switching circuit 9 outputs an output signal of a frame synchronization detecting circuit 1, and a gate circuit 10 outputs only a data part of a signal on a conductor 11, which is controlled by an output of the frame synchronization detecting circuit 1, and inputs it to a data buffer 6. On the other hand, in case when the code error rate is high, the CPU8 makes the logic on the conductor 81 different from said case, and sets it to a three continuous transmissions using shift registers 2a-3b and a deciding circuit 4.
JP11660680A 1980-08-22 1980-08-22 Code error correcting circuit Pending JPS5741050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11660680A JPS5741050A (en) 1980-08-22 1980-08-22 Code error correcting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11660680A JPS5741050A (en) 1980-08-22 1980-08-22 Code error correcting circuit

Publications (1)

Publication Number Publication Date
JPS5741050A true JPS5741050A (en) 1982-03-06

Family

ID=14691320

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11660680A Pending JPS5741050A (en) 1980-08-22 1980-08-22 Code error correcting circuit

Country Status (1)

Country Link
JP (1) JPS5741050A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675867A (en) * 1983-12-14 1987-06-23 Canon Kabushiki Kaisha Data processing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675867A (en) * 1983-12-14 1987-06-23 Canon Kabushiki Kaisha Data processing device

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