JPS5455339A - Error detecting correction system - Google Patents

Error detecting correction system

Info

Publication number
JPS5455339A
JPS5455339A JP12228077A JP12228077A JPS5455339A JP S5455339 A JPS5455339 A JP S5455339A JP 12228077 A JP12228077 A JP 12228077A JP 12228077 A JP12228077 A JP 12228077A JP S5455339 A JPS5455339 A JP S5455339A
Authority
JP
Japan
Prior art keywords
circuit
generates
bit
error
check
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
JP12228077A
Other languages
Japanese (ja)
Other versions
JPS5848936B2 (en
Inventor
Eiji Fujiwara
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP52122280A priority Critical patent/JPS5848936B2/en
Publication of JPS5455339A publication Critical patent/JPS5455339A/en
Publication of JPS5848936B2 publication Critical patent/JPS5848936B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Error Detection And Correction (AREA)
  • Detection And Correction Of Errors (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

PURPOSE: To expand the range of bit-block error detection without increase, especially in check-bit information and in the number of gates needed for coding and decoding, by providing specific conditions to the H matrix as a code.
CONSTITUTION: This system is provided with processor 4 and coding circuit 2 which generates a K number of b-bit data blocks D0, D1...Dk-1 as pieces of data information and check blocks C0, C1...Cr-1 for the (r) value under the relation as shown by equation (1). Then data with an additional check bit is processed by decoding circuit 6 and error-detection circuit 27, so that error detection signal 28 will be outputted which can not be corrected. This decoding circuit 6 is provided with syndrome generating circuit 9 which generates syndrome Si in the relation of equation (2) from received information 8, error pattern generating circuit 11 which generates error pattern Kj from the syndrome of circuit 9, and block pointer generating circuit 13 which generates block pointers Bdj to check blocks
COPYRIGHT: (C)1979,JPO&Japio
JP52122280A 1977-10-12 1977-10-12 Error detection and correction method Expired JPS5848936B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52122280A JPS5848936B2 (en) 1977-10-12 1977-10-12 Error detection and correction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52122280A JPS5848936B2 (en) 1977-10-12 1977-10-12 Error detection and correction method

Publications (2)

Publication Number Publication Date
JPS5455339A true JPS5455339A (en) 1979-05-02
JPS5848936B2 JPS5848936B2 (en) 1983-11-01

Family

ID=14832042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52122280A Expired JPS5848936B2 (en) 1977-10-12 1977-10-12 Error detection and correction method

Country Status (1)

Country Link
JP (1) JPS5848936B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5724143A (en) * 1980-07-18 1982-02-08 Sony Corp Error correcting method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5724143A (en) * 1980-07-18 1982-02-08 Sony Corp Error correcting method
JPH0353818B2 (en) * 1980-07-18 1991-08-16

Also Published As

Publication number Publication date
JPS5848936B2 (en) 1983-11-01

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