JPS644974A - Magnetic disk device - Google Patents
Magnetic disk deviceInfo
- Publication number
- JPS644974A JPS644974A JP15959887A JP15959887A JPS644974A JP S644974 A JPS644974 A JP S644974A JP 15959887 A JP15959887 A JP 15959887A JP 15959887 A JP15959887 A JP 15959887A JP S644974 A JPS644974 A JP S644974A
- Authority
- JP
- Japan
- Prior art keywords
- format
- verification
- pulses
- pulse
- processing
- 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
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE:To enable a verification processing to be executed immediately setting a format start pulse and a format completion pulse as an origin and to remarkably shorten the execution time of a series of format verification, by outputting those pulses at different timings. CONSTITUTION:A format start/stop control circuit 9 which outputs two pulses, the format start pulse and the format completion pulse, in the rotation of a disk 1 only at the time of formatting is provided in a disk control part. The preparation of the verification processing for format data is performed by the pulses are detected, and when the next format start pulse is detected, a verification operation can be started immediately. In such a way, it is possible to eliminate a rotation waiting time between a format processing and the verification processing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15959887A JPS644974A (en) | 1987-06-29 | 1987-06-29 | Magnetic disk device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15959887A JPS644974A (en) | 1987-06-29 | 1987-06-29 | Magnetic disk device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS644974A true JPS644974A (en) | 1989-01-10 |
Family
ID=15697199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15959887A Pending JPS644974A (en) | 1987-06-29 | 1987-06-29 | Magnetic disk device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS644974A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LT3489B (en) | 1993-06-23 | 1995-11-27 | Vladimir Cerednicenko | Process for applying of decorative picture to surface of glass |
-
1987
- 1987-06-29 JP JP15959887A patent/JPS644974A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LT3489B (en) | 1993-06-23 | 1995-11-27 | Vladimir Cerednicenko | Process for applying of decorative picture to surface of glass |
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