JPS5637748A - Coding method - Google Patents

Coding method

Info

Publication number
JPS5637748A
JPS5637748A JP11365379A JP11365379A JPS5637748A JP S5637748 A JPS5637748 A JP S5637748A JP 11365379 A JP11365379 A JP 11365379A JP 11365379 A JP11365379 A JP 11365379A JP S5637748 A JPS5637748 A JP S5637748A
Authority
JP
Japan
Prior art keywords
bit
column
row
coding
matrix
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.)
Granted
Application number
JP11365379A
Other languages
Japanese (ja)
Other versions
JPS628057B2 (en
Inventor
Toshitane Yamauchi
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 JP11365379A priority Critical patent/JPS5637748A/en
Publication of JPS5637748A publication Critical patent/JPS5637748A/en
Publication of JPS628057B2 publication Critical patent/JPS628057B2/ja
Granted 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
    • H04L1/0057—Block codes

Landscapes

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

Abstract

PURPOSE:To increase the coding efficiency at the inferior transmission circuit and also securing high reliability, by converting the information word of the CRC coding method into the matrix and then giving the parity check code to the matrix. CONSTITUTION:For example, the undetected error rate PB is reduced by adding the internal coding of the information length R bit to the (n, R, 4) CRC (Cyclic Redundancy Check) coding of the code length (n) bit, the information R bit and the intercode distance 4. Then the R bit has constitution (R=aXb) of the row (a) and the column (b) each, and the data obtained by calculating the parity of each row direction of the row (a) and the column (b-1) up to the (b-1) column, i.e., the composite coding method having the horizontal parity code is adopted for the column (b) data of the final column. The figure shows the matrix in which the information word of (k) bit is set for the row (a) and the column (b) each, and the (r) bit is the CRC check bit, i.e., the redundant bit which means the residual obtained by dividing the equation aXb=k by the grown polynomial g(x).
JP11365379A 1979-09-04 1979-09-04 Coding method Granted JPS5637748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11365379A JPS5637748A (en) 1979-09-04 1979-09-04 Coding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11365379A JPS5637748A (en) 1979-09-04 1979-09-04 Coding method

Publications (2)

Publication Number Publication Date
JPS5637748A true JPS5637748A (en) 1981-04-11
JPS628057B2 JPS628057B2 (en) 1987-02-20

Family

ID=14617718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11365379A Granted JPS5637748A (en) 1979-09-04 1979-09-04 Coding method

Country Status (1)

Country Link
JP (1) JPS5637748A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS611146A (en) * 1984-06-13 1986-01-07 Yokogawa Hewlett Packard Ltd Information communication equipment
JPS61269438A (en) * 1985-05-23 1986-11-28 Sumitomo Electric Ind Ltd Signal multiplexing receiver
EP0229698A2 (en) * 1986-01-10 1987-07-22 Sony Corporation Decoder for product codes and method of decoding such codes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS611146A (en) * 1984-06-13 1986-01-07 Yokogawa Hewlett Packard Ltd Information communication equipment
JPS61269438A (en) * 1985-05-23 1986-11-28 Sumitomo Electric Ind Ltd Signal multiplexing receiver
EP0229698A2 (en) * 1986-01-10 1987-07-22 Sony Corporation Decoder for product codes and method of decoding such codes

Also Published As

Publication number Publication date
JPS628057B2 (en) 1987-02-20

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