JPS6421729A - Multi-track jump system for optical disk device - Google Patents
Multi-track jump system for optical disk deviceInfo
- Publication number
- JPS6421729A JPS6421729A JP17759387A JP17759387A JPS6421729A JP S6421729 A JPS6421729 A JP S6421729A JP 17759387 A JP17759387 A JP 17759387A JP 17759387 A JP17759387 A JP 17759387A JP S6421729 A JPS6421729 A JP S6421729A
- Authority
- JP
- Japan
- Prior art keywords
- jump
- speed
- distance
- short distance
- targeted
- 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
- Moving Of Head For Track Selection And Changing (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Abstract
PURPOSE:To enable a slave actuator to be decelerated and follow even in the track pull-in of short distance jump, by setting travel targeted speed corresponding to the distance of jump so as to set high speed in a long distance and low speed in a short distance. CONSTITUTION:The travel targeted speed just before the pull-in to a targeted track is set so as to be the high speed in the long distance and the low speed in the short distance corresponding to the distance of the jump. In other words, in the short distance jump, beam travel speed at a deceleration start point P2 is set so as to be delayed by DELTAV compared with that in long distance jump in advance. As a result, the speed of the slave actuator in the short distance jump is decreased following up a main actuator, and it is possible to set the speed at a point Q2 in servo ON at the same speed as that at a point Q1 in the long distance jump in the servo ON. In such a way, it is possible to improve the stabilization of the jump when two actuators are interlocked and perform the jump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17759387A JPS6421729A (en) | 1987-07-15 | 1987-07-15 | Multi-track jump system for optical disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17759387A JPS6421729A (en) | 1987-07-15 | 1987-07-15 | Multi-track jump system for optical disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6421729A true JPS6421729A (en) | 1989-01-25 |
Family
ID=16033705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17759387A Pending JPS6421729A (en) | 1987-07-15 | 1987-07-15 | Multi-track jump system for optical disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6421729A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100821521B1 (en) * | 2003-12-09 | 2008-04-14 | 자이단호징 덴료쿠추오켄큐쇼 | Multifunctional material having carbon-doped titanium oxide layer |
| KR20120097322A (en) | 2011-02-24 | 2012-09-03 | 제이엔씨 주식회사 | Novel 2,7-bisanthrylnaphthalene compound and organic electroluminescence element using the same |
-
1987
- 1987-07-15 JP JP17759387A patent/JPS6421729A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100821521B1 (en) * | 2003-12-09 | 2008-04-14 | 자이단호징 덴료쿠추오켄큐쇼 | Multifunctional material having carbon-doped titanium oxide layer |
| KR20120097322A (en) | 2011-02-24 | 2012-09-03 | 제이엔씨 주식회사 | Novel 2,7-bisanthrylnaphthalene compound and organic electroluminescence element using the same |
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