KR980004828A - Position Error Signal and Timing Deviation Compensation Method of Hard Disk Drive - Google Patents

Position Error Signal and Timing Deviation Compensation Method of Hard Disk Drive Download PDF

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Publication number
KR980004828A
KR980004828A KR1019960026411A KR19960026411A KR980004828A KR 980004828 A KR980004828 A KR 980004828A KR 1019960026411 A KR1019960026411 A KR 1019960026411A KR 19960026411 A KR19960026411 A KR 19960026411A KR 980004828 A KR980004828 A KR 980004828A
Authority
KR
South Korea
Prior art keywords
servo
error signal
position error
hard disk
disk drive
Prior art date
Application number
KR1019960026411A
Other languages
Korean (ko)
Other versions
KR100403049B1 (en
Inventor
김진석
Original Assignee
김광호
삼성전자 주식회사
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019960026411A priority Critical patent/KR100403049B1/en
Publication of KR980004828A publication Critical patent/KR980004828A/en
Application granted granted Critical
Publication of KR100403049B1 publication Critical patent/KR100403049B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs
    • G11B2220/2516—Hard disks
    • 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
    • G11B5/58—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 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—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 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59633—Servo formatting

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

1. 청구범위에 기재된 발명이 속한 기술분야1. Technical field to which the invention described in the claims belongs

하드 디스크 드라이브의 헤드스위칭 발생하는 위치에러신호 및 타이밍 편차를 보상하기 위한 방법에 관한 것이다.To a method for compensating a position error signal and a timing deviation caused by head switching of a hard disk drive.

2. 발명이 해결하려고 하는 기술적 과제2. Technical Challenges to be Solved by the Invention

하드 디스크 드라이브에 있어서 서보라이팅 기구적 변형에 의해 각 헤드마다 서로 다른 편차를 가지고 라이트되는 서보정보로부터 위치에러 신호 및 타이밍 편차를 보상할 수 있는 방법을 제공함에 있다.And a method for compensating a position error signal and a timing deviation from servo information written with different deviations for each head by a servo writing mechanism variation in a hard disk drive.

3. 발명의 해결방법의 요지3. The point of the solution of the invention

하드 디스크 드라이브에 있어서 헤드 스위칭이 발생하는 경우 스위칭된 헤드에 대응하는 디스크상의 제1서보섹터로부터 돌출된 위치에러신호와 헤드 스위칭 이전의 서보섹터로부터 독출된 위치에어신호의 편차를 계산하여 저장하는 과정과, 상기 스위칭된 헤드에 대응하는 디스크상의 제1서보섹터로부터 서보 어드레스 마크가 검출되는 경우 메인카운터를 리셋시킨후 제2서보섹터로부터 서보어드레스 마크가 검출될때까지의 타이밍을 카운팅하는 과정, 상기 카운팅된 타이밍값과 기준 디볼트값의 편차를 계산하는 과정과, 상기 계산된 편차들을 최종업데이트하는 과정으로 이루어짐을 특징으로 한다.Calculating and storing a deviation between a position error signal protruding from the first servo sector on the disk corresponding to the switched head and a position air signal read from the servo sector before the head switching when head switching occurs in the hard disk drive Counting the timing from when the servo address mark is detected from the first servo sector on the disk corresponding to the switched head to when the servo address mark is detected from the second servo sector after resetting the main counter; Calculating a deviation between the reference timing value and the reference timing value, and finally updating the calculated deviation values.

4. 발명의 중요한 용도4. Important Uses of the Invention

하드 디스크 드라이브의 서보제어에 사용될 수 있다.And can be used for servo control of the hard disk drive.

Description

하드 디스크 드라이브의 위치에러신호 및 타이밍 편차 보상방법Position Error Signal and Timing Deviation Compensation Method of Hard Disk Drive

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제5도는 본 발명의 일실시예에 따른 제어흐름도.5 is a control flow diagram according to an embodiment of the present invention.

제6도는 본 발명의 일실시예에 따른 타이밍도.6 is a timing diagram according to an embodiment of the present invention;

Claims (2)

하드 디스크의 드라이브의 위치에러신호 및 타이밍 편차 보상방법에 있어서, 헤드 스위칭이 발생하는 경우 스위칭된 헤드에 대응하는 디스크상의 제1서보섹터로부터 돌출된 위치에러신호와 헤드 스위칭 이전의 서보섹터로부터 독출된 위치에러신호의 편차를 계산하여 저장하는 과정과, 상기 스위칭된 헤드에 대응하는 디스크상의 제1서보섹터로부터 서보 어드레스 마크가 검출되는 경우 메인카운터를 리셋시킨후 제2서보섹터로부터 서보어드레스 마크가 검출될때까지의 타이밍을 카운팅하는 과정과, 상기 카운팅된 타이밍값과 기준 디볼트값의 편차를 계산하는 과정과, 상기 계산된 편차들을 최종 업데이트하는 과정으로 이루어짐을 특징으로 하는 하드 디스크 드라이브의 위치에러 신호 및 타이밍 편차 보상방법.A method for compensating a position error signal and a timing error of a drive of a hard disk, comprising the steps of: comparing a position error signal projected from a first servo sector on a disk corresponding to a switched head when a head switching occurs, Calculating and storing a deviation of the position error signal; and, when a servo address mark is detected from the first servo sector on the disk corresponding to the switched head, resetting the main counter and then detecting a servo address mark from the second servo sector Calculating a difference between the counted timing value and a reference divisor value, and finally updating the calculated deviations. The method as claimed in claim 1, And timing deviation compensation method. 제1항에 있어서, 상기 제1서보섹터는 헤드 스위칭 직후 최초로 엑세스되는 서보섹터임을 특징으로 하는 하드 디스크 드라이브의 위치에러 신호 및 타이밍 편차 보상방법.2. The method of claim 1, wherein the first servo sector is a servo sector that is first accessed immediately after head switching. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960026411A 1996-06-29 1996-06-29 Method for compensating for position error signal and timing deviation of hard disk drive KR100403049B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960026411A KR100403049B1 (en) 1996-06-29 1996-06-29 Method for compensating for position error signal and timing deviation of hard disk drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960026411A KR100403049B1 (en) 1996-06-29 1996-06-29 Method for compensating for position error signal and timing deviation of hard disk drive

Publications (2)

Publication Number Publication Date
KR980004828A true KR980004828A (en) 1998-03-30
KR100403049B1 KR100403049B1 (en) 2004-04-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100468764B1 (en) * 2001-09-13 2005-01-29 삼성전자주식회사 Method and apparatus for providing positional information on a disk
CN111726793A (en) * 2020-06-17 2020-09-29 翱捷科技(上海)有限公司 Timing deviation compensation method and device and electronic equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59218676A (en) * 1983-05-26 1984-12-08 Fujitsu Ltd Position control compensating system
KR930000069B1 (en) * 1989-01-31 1993-01-08 가부시기가이샤 도시바 Head positioning control device for data recording apparatus
US5262907A (en) * 1991-07-31 1993-11-16 Seagate Technology, Inc. Hard disc drive with improved servo system
US5382887A (en) * 1993-03-25 1995-01-17 Guzik Technical Enterprises, Inc. Method and apparatus for compensating positioning error in magnetic-head and magnetic-disk tester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100468764B1 (en) * 2001-09-13 2005-01-29 삼성전자주식회사 Method and apparatus for providing positional information on a disk
CN111726793A (en) * 2020-06-17 2020-09-29 翱捷科技(上海)有限公司 Timing deviation compensation method and device and electronic equipment

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Publication number Publication date
KR100403049B1 (en) 2004-04-14

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