JPS6467777A - Disk-shaped recording medium - Google Patents
Disk-shaped recording mediumInfo
- Publication number
- JPS6467777A JPS6467777A JP22385187A JP22385187A JPS6467777A JP S6467777 A JPS6467777 A JP S6467777A JP 22385187 A JP22385187 A JP 22385187A JP 22385187 A JP22385187 A JP 22385187A JP S6467777 A JPS6467777 A JP S6467777A
- Authority
- JP
- Japan
- Prior art keywords
- servo
- track
- data
- trd
- servo information
- 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 attain highly accurate tracking control by interpolating servo information based on a servo signal detected at a data track by using servo information based on a servo signal detected at a servo track. CONSTITUTION:The sector length (the length of data area D i.e. interval between servo areas S) of data tracks TRD (tracks TR00-TR239) is set longer than conventional. And, servo information in the intermediate position between servo areas on the data tracks TRD is obtained by operating an interpolation based on servo information obtained from a servo track in the outer vicinity and, when necessary, obtained from a servo track in the inner vicinity. The tracking control is executed based on thus obtained imaginary servo information. As a result, a highly accurate control can be attained even in case the sector length of the data track TRD is long.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22385187A JPS6467777A (en) | 1987-09-09 | 1987-09-09 | Disk-shaped recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22385187A JPS6467777A (en) | 1987-09-09 | 1987-09-09 | Disk-shaped recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6467777A true JPS6467777A (en) | 1989-03-14 |
Family
ID=16804710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22385187A Pending JPS6467777A (en) | 1987-09-09 | 1987-09-09 | Disk-shaped recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6467777A (en) |
-
1987
- 1987-09-09 JP JP22385187A patent/JPS6467777A/en active Pending
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