JPS644967A - Optical disk device - Google Patents
Optical disk deviceInfo
- 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
Links
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07105633A (en) * | 1990-07-09 | 1995-04-21 | Seagate Technol Internatl | Data reproducing channel of disk drive array |
-
1987
- 1987-06-26 JP JP15937687A patent/JPS644967A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07105633A (en) * | 1990-07-09 | 1995-04-21 | Seagate Technol Internatl | Data reproducing channel of disk drive array |
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