KR900006960B1 - Apparatus for magnetic hard disk - Google Patents
Apparatus for magnetic hard diskInfo
- Publication number
- KR900006960B1 KR900006960B1 KR8610084A KR860010084A KR900006960B1 KR 900006960 B1 KR900006960 B1 KR 900006960B1 KR 8610084 A KR8610084 A KR 8610084A KR 860010084 A KR860010084 A KR 860010084A KR 900006960 B1 KR900006960 B1 KR 900006960B1
- Authority
- KR
- South Korea
- Prior art keywords
- servo
- head
- heads
- hard disk
- data
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
Landscapes
- Moving Of The Head To Find And Align With The Track (AREA)
Abstract
A disk drive apparatus comprises a plurality of recording medium (10) including first and second servo-surface (11,20) and data surfaces, first and second servo heads (13,21), data heads (12), means (14) for driving a plurality of heads (12,13,21), means for calculating position variance of the second servo head on disk surface with servo information from the first servo head and correction servo information from the second servo head, and means for controlling head driving means to reduce the off track of the data head correpsonding to position variance.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60269607A JPS62129981A (en) | 1985-11-30 | 1985-11-30 | Magnetic recording and reproducing device |
JP60-269607 | 1985-11-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR870005371A KR870005371A (en) | 1987-06-08 |
KR900006960B1 true KR900006960B1 (en) | 1990-09-25 |
Family
ID=17474711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR8610084A KR900006960B1 (en) | 1985-11-30 | 1986-11-28 | Apparatus for magnetic hard disk |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS62129981A (en) |
KR (1) | KR900006960B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0267771A3 (en) * | 1986-11-10 | 1988-11-30 | Seagate Technology, Inc. | Dual track servo system |
US5185681A (en) * | 1990-09-28 | 1993-02-09 | Seagate | Thermal offset compensation for high density disk drives |
-
1985
- 1985-11-30 JP JP60269607A patent/JPS62129981A/en active Pending
-
1986
- 1986-11-28 KR KR8610084A patent/KR900006960B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR870005371A (en) | 1987-06-08 |
JPS62129981A (en) | 1987-06-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 19960916 Year of fee payment: 7 |
|
LAPS | Lapse due to unpaid annual fee |