[go: up one dir, main page]

JPS54105444A - Double-error correction circuit - Google Patents

Double-error correction circuit

Info

Publication number
JPS54105444A
JPS54105444A JP1258878A JP1258878A JPS54105444A JP S54105444 A JPS54105444 A JP S54105444A JP 1258878 A JP1258878 A JP 1258878A JP 1258878 A JP1258878 A JP 1258878A JP S54105444 A JPS54105444 A JP S54105444A
Authority
JP
Japan
Prior art keywords
circuit
double
error correction
bits
constitution
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
JP1258878A
Other languages
Japanese (ja)
Other versions
JPS6041771B2 (en
Inventor
Toshio Horiguchi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP53012588A priority Critical patent/JPS6041771B2/en
Publication of JPS54105444A publication Critical patent/JPS54105444A/en
Publication of JPS6041771B2 publication Critical patent/JPS6041771B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Detection And Correction Of Errors (AREA)
  • Error Detection And Correction (AREA)

Abstract

PURPOSE: To make it possible to correct any two errors and less by obtaining a correction code of a little redundancey, by adding the 3m+1-number check bits to the m2+(3/2)(m-1)-number data bits with (m) taken as an odd number more than three.
CONSTITUTION: The double-error correction circuit consists of coding circuit 1 which adds the 3m+1-number check bits CB to m2+(3/2)(m-1) data bits DB with (m) taken as any odd number more than three, memory 2 stored with DB and CB, and composite circuit 3 equipped with circuit 20 generating syndrome bits from DB and CB and majority-decision circuit 21 correcting two random errors or more occurring in DB and CB by decoding the output of circuit 20 through majority decision logic. Then, error data are corrected by circuit 3 and then supplied to the arithmetic circuit again. In this constitution, when (m) is five, the double-error correction code can be obtained which is obtained by adding 16 (=3m+1) CBs to 31 [=m2+(3/2)(m-1)] DBs.
COPYRIGHT: (C)1979,JPO&Japio
JP53012588A 1978-02-07 1978-02-07 double error correction circuit Expired JPS6041771B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53012588A JPS6041771B2 (en) 1978-02-07 1978-02-07 double error correction circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53012588A JPS6041771B2 (en) 1978-02-07 1978-02-07 double error correction circuit

Publications (2)

Publication Number Publication Date
JPS54105444A true JPS54105444A (en) 1979-08-18
JPS6041771B2 JPS6041771B2 (en) 1985-09-18

Family

ID=11809506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53012588A Expired JPS6041771B2 (en) 1978-02-07 1978-02-07 double error correction circuit

Country Status (1)

Country Link
JP (1) JPS6041771B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185752A (en) * 1981-05-11 1982-11-16 Kokusai Denshin Denwa Co Ltd <Kdd> Reproduction relay system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185752A (en) * 1981-05-11 1982-11-16 Kokusai Denshin Denwa Co Ltd <Kdd> Reproduction relay system

Also Published As

Publication number Publication date
JPS6041771B2 (en) 1985-09-18

Similar Documents

Publication Publication Date Title
US4397022A (en) Weighted erasure codec for the (24, 12) extended Golay code
CA2037027A1 (en) Forward error correction code system
DE3382661D1 (en) CORRECTION OF ERROR BUNCHES IN DATA GROUPS.
CA2013158A1 (en) Error correction method and apparatus
GB1440106A (en) Data handling apparatus
AU6262180A (en) Error correcting convolutional code
EP0290349A3 (en) Method and apparatus for encoding using a Reed-Solomon error correction code
JPS55131860A (en) Error correction unit
GB1500232A (en) Digital data signal transmission arrangements
JPS5724143A (en) Error correcting method
EP0138078A3 (en) Decoder of cyclic perfect binary code
JPS5710561A (en) Error correcting method
US5623504A (en) Methods and apparatus for encoding and/or decoding digital data elements with different degrees of error protection in accordance with a quasi-product code
JPS54105444A (en) Double-error correction circuit
EP0527025A3 (en) Circuit and method of error detection and correction in data words with checkbits
KR20050094764A (en) Channel encoding apparatus and method
JPS5644947A (en) Code error control system
KR0162605B1 (en) Common circuit of rs decode syndrome generator for digital vcr system
JPS5457848A (en) Detecting correction system for block error
JPS5636748A (en) Error correcting circuit
JPS58218255A (en) Code error detection and correction system
JPS5413242A (en) Generation circuit for circulation code
Patel et al. An adaptive error correction scheme for computer memory system
JPS522355A (en) Code error detercting system
JPS54162933A (en) Memory unit