JPS56126349A - Decoding method of convolutional code - Google Patents

Decoding method of convolutional code

Info

Publication number
JPS56126349A
JPS56126349A JP3121480A JP3121480A JPS56126349A JP S56126349 A JPS56126349 A JP S56126349A JP 3121480 A JP3121480 A JP 3121480A JP 3121480 A JP3121480 A JP 3121480A JP S56126349 A JPS56126349 A JP S56126349A
Authority
JP
Japan
Prior art keywords
information
series
errors
burst
same time
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
JP3121480A
Other languages
Japanese (ja)
Inventor
Tsuneo Hirose
Shinichi Tanaka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3121480A priority Critical patent/JPS56126349A/en
Publication of JPS56126349A publication Critical patent/JPS56126349A/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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Error Detection And Correction (AREA)

Abstract

PURPOSE:To enhance a detecting and compensating capacity for a burst error, by simultaneously compensating the information bits corresponding both to the information series and the parity series at the arising time of the burst in case an error over the correcting capacity of decoding is detected. CONSTITUTION:The b units of shift registers 50 are added to the parity series. Thus, the error e0<(1)> of the information to be corrected is cut off from the errors e10<(2)>-e16<(2)> of the parity series by a distance b or more. When a burst is detected, the information corresponding to the errors e10<(2)>-e16<(2)> are compensated by a compensating means such as a holder or the like. At the same time, a compensation is given to the information series A at the same time as the errors e10<(2)>-e16<(2)>. The syndromes S0-S6 are reset before the new data is supplied to eliminate an erroneous propagation when the new data is given after a compensation. At the same time, a shift register 52 is provided between the compensator 54 and the correcting adder 53 of a decoding circuit to store the part of e0<(1)>-e0<(6)>.
JP3121480A 1980-03-11 1980-03-11 Decoding method of convolutional code Pending JPS56126349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3121480A JPS56126349A (en) 1980-03-11 1980-03-11 Decoding method of convolutional code

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3121480A JPS56126349A (en) 1980-03-11 1980-03-11 Decoding method of convolutional code

Publications (1)

Publication Number Publication Date
JPS56126349A true JPS56126349A (en) 1981-10-03

Family

ID=12325175

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3121480A Pending JPS56126349A (en) 1980-03-11 1980-03-11 Decoding method of convolutional code

Country Status (1)

Country Link
JP (1) JPS56126349A (en)

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