JPS647367A - Method and device for recording information - Google Patents
Method and device for recording informationInfo
- Publication number
- JPS647367A JPS647367A JP7639588A JP7639588A JPS647367A JP S647367 A JPS647367 A JP S647367A JP 7639588 A JP7639588 A JP 7639588A JP 7639588 A JP7639588 A JP 7639588A JP S647367 A JPS647367 A JP S647367A
- Authority
- JP
- Japan
- Prior art keywords
- information
- track
- recording
- caused
- mpu
- 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 Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
PURPOSE:To enable a correct recording in a short time even when there is a big defect on a recording medium by re-recording the information same as the following information on the track of more than two tracks ahead when an abnormality is caused on a tracking servo at the time of recording an information. CONSTITUTION:A microprocessing unit MPU moves an optical spot to a track 31p to record an information thereon. In case of an out-of automatic tracking AT being caused by a defect 43 now, the MPU immediately stops a recording operation. The MPU then moves the optical head to move the optical spot to the information track 31p+l of l track ahead. And the information same as the information tried to record on a track 31p is recorded on the track 31p+l. Said l is of the integer >=2 and decided by considering the performance of a medium to be used, the AT property of the device, etc. The time until a correct recording is made can thus be shortened in case of a big defect being caused on the recording medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7639588A JPS647367A (en) | 1987-03-31 | 1988-03-31 | Method and device for recording information |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7796187 | 1987-03-31 | ||
| JP7639588A JPS647367A (en) | 1987-03-31 | 1988-03-31 | Method and device for recording information |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS647367A true JPS647367A (en) | 1989-01-11 |
Family
ID=26417544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7639588A Pending JPS647367A (en) | 1987-03-31 | 1988-03-31 | Method and device for recording information |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS647367A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018066690A1 (en) | 2016-10-06 | 2018-04-12 | 協和発酵バイオ株式会社 | Crystal of cytidine diphosphate choline and production process thefefor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5654617A (en) * | 1979-10-09 | 1981-05-14 | Fujitsu Ltd | Automatic gain control system |
| JPS61208682A (en) * | 1985-03-13 | 1986-09-17 | Nec Corp | Memory device |
-
1988
- 1988-03-31 JP JP7639588A patent/JPS647367A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5654617A (en) * | 1979-10-09 | 1981-05-14 | Fujitsu Ltd | Automatic gain control system |
| JPS61208682A (en) * | 1985-03-13 | 1986-09-17 | Nec Corp | Memory device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018066690A1 (en) | 2016-10-06 | 2018-04-12 | 協和発酵バイオ株式会社 | Crystal of cytidine diphosphate choline and production process thefefor |
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