JPS644967A - Optical disk device - Google Patents

Optical disk device

Info

Publication number
JPS644967A
JPS644967A JP15937687A JP15937687A JPS644967A JP S644967 A JPS644967 A JP S644967A JP 15937687 A JP15937687 A JP 15937687A JP 15937687 A JP15937687 A JP 15937687A JP S644967 A JPS644967 A JP S644967A
Authority
JP
Japan
Prior art keywords
time
processing
optical disk
data
alternate
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
JP15937687A
Other languages
Japanese (ja)
Inventor
Ryuichi Inoue
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 JP15937687A priority Critical patent/JPS644967A/en
Publication of JPS644967A publication Critical patent/JPS644967A/en
Pending legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE:To prevent the time out of a host side from being generated even when a large time is consumed in the processing of an optical disk, by informing the processing under execution and the retry processing under execution to an alternate track in an optical disk device to a host device by applying interruption. CONSTITUTION:When an data error is detected by an error detection and correction circuit 7 at the time of reproducing data from the optical disk, the existence of an alternate sector which coincides with an original sector is searched on the same track, and when no corresponding sector exists, the data is searched on the alternate track. At this time, since a time to execute the processing to the alternate track larger than an ordinary processing time is required, a flag to show the processing of the alternate track under execution is set, and setting an IRQ and ON, and when corresponding data exists on the alternate track, the data is transferred to the host side. At this time, when no corresponding data exists on the alternate track, the flag representing the retry processing is set, then, the retry processing on an original sector is performed. In such a way, it is possible to prevent the time out of the I/O units of the host device from being generated.
JP15937687A 1987-06-26 1987-06-26 Optical disk device Pending JPS644967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15937687A JPS644967A (en) 1987-06-26 1987-06-26 Optical disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15937687A JPS644967A (en) 1987-06-26 1987-06-26 Optical disk device

Publications (1)

Publication Number Publication Date
JPS644967A true JPS644967A (en) 1989-01-10

Family

ID=15692464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15937687A Pending JPS644967A (en) 1987-06-26 1987-06-26 Optical disk device

Country Status (1)

Country Link
JP (1) JPS644967A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07105633A (en) * 1990-07-09 1995-04-21 Seagate Technol Internatl Disk drive array data recovery channel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07105633A (en) * 1990-07-09 1995-04-21 Seagate Technol Internatl Disk drive array data recovery channel

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