JPS644979A - System for detecting abnormality in optical disk device - Google Patents

System for detecting abnormality in optical disk device

Info

Publication number
JPS644979A
JPS644979A JP15776887A JP15776887A JPS644979A JP S644979 A JPS644979 A JP S644979A JP 15776887 A JP15776887 A JP 15776887A JP 15776887 A JP15776887 A JP 15776887A JP S644979 A JPS644979 A JP S644979A
Authority
JP
Japan
Prior art keywords
optical disk
disk device
abnormality
destruction
access
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
JP15776887A
Other languages
Japanese (ja)
Inventor
Osamu Omoto
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 JP15776887A priority Critical patent/JPS644979A/en
Publication of JPS644979A publication Critical patent/JPS644979A/en
Pending legal-status Critical Current

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  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE:To prevent file destruction or volume destruction from being generated by interrupting access, by judging it to be the generation of abnormality in an optical disk device in the case where all of the write verifying operations for a regulated number of continuous sectors on an alternate track go to read errors. CONSTITUTION:When the access is discriminated as the one to the alternate track in the optical disk device 3, it is judged as the abnormality of the optical disk device that the number of times of generation of write verity errors in the write operation of the alternate track exceeds the reference number of times stored in a storage means. And when it is decided as the abnormality of the optical disk device, the access to the optical disk device 3 is interrupted. In such a way, it is possible to prevent the file destruction or the volume destruction from being generated.
JP15776887A 1987-06-26 1987-06-26 System for detecting abnormality in optical disk device Pending JPS644979A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15776887A JPS644979A (en) 1987-06-26 1987-06-26 System for detecting abnormality in optical disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15776887A JPS644979A (en) 1987-06-26 1987-06-26 System for detecting abnormality in optical disk device

Publications (1)

Publication Number Publication Date
JPS644979A true JPS644979A (en) 1989-01-10

Family

ID=15656885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15776887A Pending JPS644979A (en) 1987-06-26 1987-06-26 System for detecting abnormality in optical disk device

Country Status (1)

Country Link
JP (1) JPS644979A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4946973A (en) * 1988-09-20 1990-08-07 Union Camp Corporation Stereoselective epoxidation of cyclic 4-hydroxy olefins
JPH04272228A (en) * 1991-02-28 1992-09-29 Sekisui Plastics Co Ltd Production of fibrous barium titanate
US6697977B2 (en) 2000-07-21 2004-02-24 Fujitsu Limited Disc recording apparatus, method for replacing sector on recording disc, and recording disc

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4946973A (en) * 1988-09-20 1990-08-07 Union Camp Corporation Stereoselective epoxidation of cyclic 4-hydroxy olefins
JPH04272228A (en) * 1991-02-28 1992-09-29 Sekisui Plastics Co Ltd Production of fibrous barium titanate
US6697977B2 (en) 2000-07-21 2004-02-24 Fujitsu Limited Disc recording apparatus, method for replacing sector on recording disc, and recording disc

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