JPS62159379A - Disk control system - Google Patents

Disk control system

Info

Publication number
JPS62159379A
JPS62159379A JP121386A JP121386A JPS62159379A JP S62159379 A JPS62159379 A JP S62159379A JP 121386 A JP121386 A JP 121386A JP 121386 A JP121386 A JP 121386A JP S62159379 A JPS62159379 A JP S62159379A
Authority
JP
Japan
Prior art keywords
data
reading operation
detected
data error
error
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
JP121386A
Other languages
Japanese (ja)
Inventor
Tomohisa Arai
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
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 filed Critical NEC Corp
Priority to JP121386A priority Critical patent/JPS62159379A/en
Publication of JPS62159379A publication Critical patent/JPS62159379A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase an opportunity to recover data by counting up the execution number of times of re-reading operation when a bit of information regarding a detected data error and the bit of information regarding a data error at the last time detection coincide, and controlling so as to reset a counter.
CONSTITUTION: A counter 5, when the data error is not detected in a data readout time, and when the data error, the content of which is varied by the re-reading operation is detected, is reset, and zero is outputted as a count data 14, meanwhile, when the data error, the content of which is not varied by the re-reading operation, is detected, the execution number of times for the re- reading operation are counted, and a result is outputted as the count data 14. A controller 6, when it detects a strobe signal 27, outputs a strobe signal 23, and latches a syndrome 12 generated in the data readout time at a register 3, and next, it decides whether the re-reading operation of the data should be continued or terminated, and controls a re-reading request signal 28 for the data referring a data error detection signal 21 and the count data 14.
COPYRIGHT: (C)1987,JPO&Japio
JP121386A 1986-01-07 1986-01-07 Disk control system Pending JPS62159379A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP121386A JPS62159379A (en) 1986-01-07 1986-01-07 Disk control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP121386A JPS62159379A (en) 1986-01-07 1986-01-07 Disk control system

Publications (1)

Publication Number Publication Date
JPS62159379A true JPS62159379A (en) 1987-07-15

Family

ID=11495188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP121386A Pending JPS62159379A (en) 1986-01-07 1986-01-07 Disk control system

Country Status (1)

Country Link
JP (1) JPS62159379A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04232669A (en) * 1990-09-04 1992-08-20 Internatl Business Mach Corp <Ibm> Error control method and system for optical disk device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04232669A (en) * 1990-09-04 1992-08-20 Internatl Business Mach Corp <Ibm> Error control method and system for optical disk device

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