KR970071730A - How to detect the flying height of the head on the hard disk drive - Google Patents
How to detect the flying height of the head on the hard disk drive Download PDFInfo
- Publication number
- KR970071730A KR970071730A KR1019960013895A KR19960013895A KR970071730A KR 970071730 A KR970071730 A KR 970071730A KR 1019960013895 A KR1019960013895 A KR 1019960013895A KR 19960013895 A KR19960013895 A KR 19960013895A KR 970071730 A KR970071730 A KR 970071730A
- Authority
- KR
- South Korea
- Prior art keywords
- hard disk
- disk drive
- head
- flying height
- reference signal
- Prior art date
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- Supporting Of Heads In Record-Carrier Devices (AREA)
Abstract
1. 청구범위에 기재된 발명이 속한 기술분야1. Technical field to which the invention described in the claims belongs
하드 디스크 드라이브의 안정도를 개선하는데 있어서, 특히 헤드의 플라잉 높이(flying higt)를 감지하여 시스템 전체의 안정도를 높이는 방법에 관한 것이다.And more particularly, to a method for improving the stability of the entire system by sensing the flying height of the head in improving the stability of the hard disk drive.
2. 발명의 해결하려고 하는 기술적 과제2. Technical Problems to be Solved by the Invention
하드 디스크 드라이브를 오랜기간동안 사용하다보면 사용중에 행해진 많은 기계적 동작, 또는 사용중에 받은 외부 충격등으로 인하여 상기 플라잉 높이(flying higt)에 변화가 생기게 되며, 상기 변화량이 일정수준을 벗어나게 되면 헤드는 정상적인 기록/독출 동작을 할 수 없게 되며 사용자가 이를 알지 못하고 계속 사용할 시 어느순간 하드 디스크 드라이브가 동작을 멈추고 모든 데이터를 손실할 수 있는 문제점이 있었다. 그러므로, 이러한 문제점을 해결한다.When the hard disk drive is used for a long period of time, the flying higt is changed due to a lot of mechanical operations performed during use or an external shock received during use. When the amount of change exceeds a certain level, The user can not perform the write / read operation. If the user does not know the write / read operation, the hard disk drive may stop operating and lose all data at any moment. Therefore, this problem is solved.
3. 발명의 해결방법의 요지3. The point of the solution of the invention
디스크상에서 독출되는 신호의 진폭을 측정하여 헤드의 플라잉 높이(flying higt)의 변화를 감지하는 방법을 제공한다.The present invention provides a method for detecting a change in flying height of a head by measuring an amplitude of a signal read out from the disk.
4. 발명의 중요한 용도4. Important Uses of the Invention
하드 디스크 드라이브에서 헤드의 플라잉 높이를 감지하는 방법.A method for sensing the flying height of a head in a hard disk drive.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제2도는 본 발명의 실시예에 따른 헤드의 플라잉 높이를 감지하는 제어 흐름도.FIG. 2 is a control flowchart for detecting a flying height of a head according to an embodiment of the present invention; FIG.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960013895A KR970071730A (en) | 1996-04-30 | 1996-04-30 | How to detect the flying height of the head on the hard disk drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960013895A KR970071730A (en) | 1996-04-30 | 1996-04-30 | How to detect the flying height of the head on the hard disk drive |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970071730A true KR970071730A (en) | 1997-11-07 |
Family
ID=66216864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960013895A KR970071730A (en) | 1996-04-30 | 1996-04-30 | How to detect the flying height of the head on the hard disk drive |
Country Status (1)
Country | Link |
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KR (1) | KR970071730A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100418740B1 (en) * | 2000-02-09 | 2004-02-18 | 히다치 글로벌 스토리지 테크놀로지스 네덜란드 비.브이. | Method for detecting abnormal magnetic head fly height, method for data writing and hard disk drive apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62159385A (en) * | 1986-01-08 | 1987-07-15 | Hitachi Ltd | Measuring instrument for floating height of magnetic disk |
US4777544A (en) * | 1986-08-15 | 1988-10-11 | International Business Machine Corporation | Method and apparatus for in-situ measurement of head/recording medium clearance |
JPH0378113A (en) * | 1989-08-19 | 1991-04-03 | Mitsubishi Electric Corp | Magnetic disk device |
US5168413A (en) * | 1990-11-30 | 1992-12-01 | Ibm Corporation | Transducer head flying height monitoring methods and apparatus for disk drive system |
-
1996
- 1996-04-30 KR KR1019960013895A patent/KR970071730A/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62159385A (en) * | 1986-01-08 | 1987-07-15 | Hitachi Ltd | Measuring instrument for floating height of magnetic disk |
US4777544A (en) * | 1986-08-15 | 1988-10-11 | International Business Machine Corporation | Method and apparatus for in-situ measurement of head/recording medium clearance |
JPH0378113A (en) * | 1989-08-19 | 1991-04-03 | Mitsubishi Electric Corp | Magnetic disk device |
US5168413A (en) * | 1990-11-30 | 1992-12-01 | Ibm Corporation | Transducer head flying height monitoring methods and apparatus for disk drive system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100418740B1 (en) * | 2000-02-09 | 2004-02-18 | 히다치 글로벌 스토리지 테크놀로지스 네덜란드 비.브이. | Method for detecting abnormal magnetic head fly height, method for data writing and hard disk drive apparatus |
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