KR970060126A - How to remake and park hard disk drive heads - Google Patents
How to remake and park hard disk drive heads Download PDFInfo
- Publication number
- KR970060126A KR970060126A KR1019960002372A KR19960002372A KR970060126A KR 970060126 A KR970060126 A KR 970060126A KR 1019960002372 A KR1019960002372 A KR 1019960002372A KR 19960002372 A KR19960002372 A KR 19960002372A KR 970060126 A KR970060126 A KR 970060126A
- Authority
- KR
- South Korea
- Prior art keywords
- head
- reverse current
- safely
- stopping
- hard disk
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
- G11B5/4813—Mounting or aligning of arm assemblies, e.g. actuator arm supported by bearings, multiple arm assemblies, arm stacks or multiple heads on single arm
Abstract
본 발명은 영구 자석을 이용한 헤드 파킹 장치를 갖는 하드 디스크 드라이브에서 헤드의 리캘(recalibration)및 파킹 방법을 보다 안전하게 구현할 수 있도록 한 하드 디스크 드라이브의 리캘 및 파킹 방법에 관한 것으로, 헤드와 연동되는 돌기부가 마그네트에서 떨어지도록 하는 이격력에 의해 헤드가 디스크 상을 가속되어 이동하는 경우에 있어서 헤드의 불량 혹은 서보 신호의 불량 등의 원인으로 정상적인 서보 신호가 독출되지 않을 경우 헤그를 정지시키기 위하여 역방향 전류를 단계적으로 보이스 코일 모터에 흘려주는 방식으로 리켈 및 파킹을 수행하여 헤드가 가드에 충돌하는 현상을 방지하여 줌으로써, 디스크 면에 기록된 정보를 보호하거나 헤드를 보호할 수 있는 장점이 있다.The present invention relates to a method of lacing and parking a hard disk drive in which a recalibration and a parking method of a head can be more safely implemented in a hard disk drive having a head parking apparatus using a permanent magnet, When the normal servo signal is not read due to the defective head or defective servo signal when the head moves on the disk due to the separating force to separate from the magnet, the reverse current is stepwise To the voice coil motor to prevent the head from colliding with the guard by performing rekeying and parking, thereby protecting the information recorded on the disk surface or protecting the head.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제1도는 일반적인 영구 자석을 이용한 헤드 파킹 장치를 갖는 하드 디스크 드라이브의 평면도.FIG. 1 is a plan view of a hard disk drive having a head parking apparatus using a general permanent magnet. FIG.
제2도는 제1도의 하드 디스크 드라이브를 구동하기 위한 구동 회로의 개략적 블록도.FIG. 2 is a schematic block diagram of a drive circuit for driving a hard disk drive of FIG. 1; FIG.
제3도는 제2도의 회로에 의한 하드디스크 드라이브의 헤드를 안전하게 파킹하기 위한 종래의 방법을 나타내는 순서도.FIG. 3 is a flow chart showing a conventional method for securely parking a head of a hard disk drive by a circuit of FIG. 2; FIG.
제4도는 제3도의 방법에 따른 보이스 코일 모터의 전류 인가 방법을 나타내는 그래프.4 is a graph showing a current application method of the voice coil motor according to the method of FIG. 3;
제5도는 제2도의 회로에 의한 하드 디스크 드라이브의 헤드를 안전하게 파킹하기 위한 본 발명에 다른 방법을 나타내는 순서도이다.FIG. 5 is a flow chart illustrating a method according to the present invention for safely parking the head of a hard disk drive by the circuit of FIG. 2; FIG.
제6도는 제5도의 방법에 따른 보이스 코일 모터의 전류 인가 방법을 나타내는 그래프.6 is a graph showing a current application method of the voice coil motor according to the method of FIG. 5;
제7도는 제2도의 VCM 구동부, 스핀들 모터 구동부, 디지탈/아날로그 변환부 및 CPU 간의 관계를 보다 상세하게 설명하기 위한 발췌 블럭도이다.FIG. 7 is an excerpt block diagram for explaining the relationship between the VCM driver, the spindle motor driver, the digital / analog converter, and the CPU of FIG. 2 in more detail;
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960002372A KR0176570B1 (en) | 1996-01-31 | 1996-01-31 | Method for recalibrating and parking the head of hdd |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960002372A KR0176570B1 (en) | 1996-01-31 | 1996-01-31 | Method for recalibrating and parking the head of hdd |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970060126A true KR970060126A (en) | 1997-08-12 |
KR0176570B1 KR0176570B1 (en) | 1999-04-15 |
Family
ID=19450564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960002372A KR0176570B1 (en) | 1996-01-31 | 1996-01-31 | Method for recalibrating and parking the head of hdd |
Country Status (1)
Country | Link |
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KR (1) | KR0176570B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100505588B1 (en) * | 1998-01-15 | 2005-09-30 | 삼성전자주식회사 | How to Unlatch a Hard Disk Drive |
KR100518514B1 (en) * | 1998-02-20 | 2005-11-24 | 삼성전자주식회사 | Actuator on-track control device and method in hard disk drive |
KR100675002B1 (en) * | 2006-01-11 | 2007-01-29 | 삼성전자주식회사 | Actuator apparatus for hard disk drive |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101048766A (en) | 2004-10-27 | 2007-10-03 | 诺基亚公司 | Controlling coperation of a memory device |
KR100652438B1 (en) * | 2005-10-14 | 2006-12-01 | 삼성전자주식회사 | Method for unlatching with variable target tracks and apparatus thereof |
-
1996
- 1996-01-31 KR KR1019960002372A patent/KR0176570B1/en not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100505588B1 (en) * | 1998-01-15 | 2005-09-30 | 삼성전자주식회사 | How to Unlatch a Hard Disk Drive |
KR100518514B1 (en) * | 1998-02-20 | 2005-11-24 | 삼성전자주식회사 | Actuator on-track control device and method in hard disk drive |
KR100675002B1 (en) * | 2006-01-11 | 2007-01-29 | 삼성전자주식회사 | Actuator apparatus for hard disk drive |
Also Published As
Publication number | Publication date |
---|---|
KR0176570B1 (en) | 1999-04-15 |
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