JPS63257966A - Method for detecting code error - Google Patents

Method for detecting code error

Info

Publication number
JPS63257966A
JPS63257966A JP9252687A JP9252687A JPS63257966A JP S63257966 A JPS63257966 A JP S63257966A JP 9252687 A JP9252687 A JP 9252687A JP 9252687 A JP9252687 A JP 9252687A JP S63257966 A JPS63257966 A JP S63257966A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
data
error
pieces
xor
error detection
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
JP9252687A
Inventor
Masatoshi Shinpo
Original Assignee
Matsushita Electric Ind 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

Links

Abstract

PURPOSE: To speed up an error detecting processing and to detect the error of data before transmitting data by using a read-solomon code in a byte unit as a cyclic, redundancy, check code for error detection and executing a CRC processing in parallel with the error correction of data.
CONSTITUTION: By using the read-solomon code for error detection in a byte unit, (n) data XOR (exclusive OR) accumulative addition is executed at every continuous (n) pieces of data, and the size and the position of the error with respect to (m) pieces of data at every other (n) data is obtained so as to execute error correction. The size of the error is XOR-added and corrected to the result of the (n) data XOR cumulative addition corresponding to the position of data. After repeating it, final (m) pieces of corrected (n) data XOR cumulative addition results and (p) pieces of error detection parities in a byte unit are divided by a generated polynominal and the error is detected by whether the remainder is zero or non-zero. Thus, error detection is executed at high speed and the check of error detection is attained before transferring data from a buffer memory to a host computer.
COPYRIGHT: (C)1988,JPO&Japio
JP9252687A 1987-04-15 1987-04-15 Method for detecting code error Pending JPS63257966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9252687A JPS63257966A (en) 1987-04-15 1987-04-15 Method for detecting code error

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP9252687A JPS63257966A (en) 1987-04-15 1987-04-15 Method for detecting code error
US07180063 US4949342A (en) 1987-04-14 1988-04-11 Code error detecting method
EP19880303249 EP0291167B1 (en) 1987-04-14 1988-04-12 A code error detecting method
DE19883887200 DE3887200T2 (en) 1987-04-14 1988-04-12 A method for detecting Kodefehlern.
DE19883887200 DE3887200D1 (en) 1987-04-14 1988-04-12 A method for detecting Kodefehlern.

Publications (1)

Publication Number Publication Date
JPS63257966A true true JPS63257966A (en) 1988-10-25

Family

ID=14056789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9252687A Pending JPS63257966A (en) 1987-04-15 1987-04-15 Method for detecting code error

Country Status (1)

Country Link
JP (1) JPS63257966A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0267825A (en) * 1988-09-02 1990-03-07 Mitsubishi Electric Corp Error correcting circuit
WO1996008874A1 (en) * 1994-09-16 1996-03-21 Cirrus Logic, Inc. Crc/edc checker system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61287078A (en) * 1985-06-13 1986-12-17 Matsushita Electric Ind Co Ltd Digital signal reproducing device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61287078A (en) * 1985-06-13 1986-12-17 Matsushita Electric Ind Co Ltd Digital signal reproducing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0267825A (en) * 1988-09-02 1990-03-07 Mitsubishi Electric Corp Error correcting circuit
WO1996008874A1 (en) * 1994-09-16 1996-03-21 Cirrus Logic, Inc. Crc/edc checker system
US5592498A (en) * 1994-09-16 1997-01-07 Cirrus Logic, Inc. CRC/EDC checker system

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