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KR960005523A - 디스크 장치 및 디스크 매체의 포맷 작성방법 - Google Patents

디스크 장치 및 디스크 매체의 포맷 작성방법 Download PDF

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Publication number
KR960005523A
KR960005523A KR1019950018699A KR19950018699A KR960005523A KR 960005523 A KR960005523 A KR 960005523A KR 1019950018699 A KR1019950018699 A KR 1019950018699A KR 19950018699 A KR19950018699 A KR 19950018699A KR 960005523 A KR960005523 A KR 960005523A
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South Korea
Prior art keywords
track
head
disk
track pitch
medium
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KR1019950018699A
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English (en)
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KR100190427B1 (ko
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마사히로 타까기
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세끼사와 다다시
후지쓰 가부시키가이샤
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Publication of KR960005523A publication Critical patent/KR960005523A/ko
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Publication of KR100190427B1 publication Critical patent/KR100190427B1/ko

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    • 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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
    • 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
    • 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
    • G11B5/488—Disposition of heads
    • G11B5/4886—Disposition of heads relative to rotating disc
    • 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
    • G11B5/54—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 into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553—Details
    • G11B5/5534—Initialisation, calibration, e.g. cylinder "set-up"
    • 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
    • G11B5/54—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 into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553—Details
    • G11B5/5547—"Seek" control and circuits therefor
    • 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
    • G11B5/59644—Acquisition or selection of servo format from a system reference

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

Abstract

(목적) 본 발명은 기록재생의 헤드를 회전형 액추에이터를 사용하여 디스크매체상에서 이동시키는 디스크장치 및 디스크매체의 포맷 작성방법에 관한 것이며, 기록밀도의 향상을 도모하는 것을 목적으로 한다.
(구성) 디스크매체(52)에 자기헤드의 위치결정 정밀도로 정해지는 데드 스페이스의 트랙피치 TP를 최대로 함과 동시에, 자기헤드와 트랙의 YAW각이 최소일 때의 트랙피치를 최소로 하여, 내주 및 외주로부터 YAW각이 최소인 중앙부분에 걸쳐 트랙피치를 변화시켜서 순차적으로 트랙밀도를 최대로 시키는 구성으로 한다.

Description

디스크장치 및 디스크매체의 포맷 작성방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 1실시예의 구성도.
제2도는 제1도의 자기디스크의 트랙피치 상태의 설명도.
제3도는 본 발명의 트랙피치 설정의 설명도.
제4도는 본 발명의 TPI 테이블의 설명도.
제5도는 디스크매체의 포맷 작성의 설명도.
제6도는 본 발명의 다른 트랙피치 상태의 설명도.
제7도는 종래의 자기디스크장치의 일례의 평면도.
제8도는 종래의 복합박막 자기헤드의 설명도.
제9도는 종래의 트랙피치 설정의 설명도.
제10도는 제9도의 자기헤드와 트랙과의 위치관계의 설명도.

Claims (7)

  1. 정보를 기록하는 트랙을 갖는 디스크매체와, 상기 디스크를 회전시키는 회전수단과, 상기 트랙에 정보를 기록하는 기록용헤드소자와, 상기 트랙에 정보를 재생하는 재생용헤드소자가 상기 디스크매체의 트랙 긴쪽방향으로 소정의 갭으로 병설된 헤드와, 상기 헤드를 상기 디스크매체의 반경방향으로 요동시켜서 소정위치로 이동시키는 구동제어수단을 갖는 디스크 장치에 있어서, 상기 디스크매체는 상기 헤드의 위치결정 정밀도로 정해지는 트랙피치를 최대로 하고, 반경방향으로 트랙의 기록영역폭을 변화시켜서 포매팅되는 것을 특징으로 하는 디스크장치.
  2. 서보정보가 기록된 트랙이 반경방향으로 트랙피치를 변화시켜서 포매팅된 디스크매체와, 기록용헤드소자 및 재생용헤드소자가 상기 디스크매체의 트랙 긴쪽방향으로 소정 갭으로 병설된 헤드와, 상기 디스크매체의 트랙피치에 응한 트랙밀도정보를 저장하는 저장수단과, 상기 디스크매체의 각 트랙으로부터 상기 헤드로 판독된 상기 서보정보, 및 상기 저장수단으로부터의 단위 트랙수정보로부터 상기 헤드의 위치를 산출하여 시크제어신호를 생성하는 처리수단과, 상기 처리수단으로부터의 시크제어신호에 의해 상기 헤드를 상기 디스크매체의 반경방향으로 요동시켜서 소정위치에 이동시키는 구동제어수단을 갖는 것을 특징으로 하는 디스크장치.
  3. 제2항에 있어서, 상기 디스크매체의 트랙의 트랙피치는 반경방향의 중앙근방에 걸쳐 조밀상태로 포매팅되는 것을 특징으로 하는 디스크장치.
  4. 제2항 또는 제3항에 있어서, 상기 디스크매체에 포매팅되는 트랙피치는 상기 헤드의 상기 갭과, 상기 헤드가 위치하는 상기 트랙과의 교차각도의 최소부분에서 최대밀도로 설정되는 것을 특징으로 하는 디스크장치.
  5. 제2항∼제4항중의 어느 1항에 있어서, 상기 디스크매체에 포매팅되는 트랙피치는 반경방향의 상기 교차각도의 최소부분에 걸쳐 순차적으로 조밀상태로 설정되는 것을 특징으로 하는 디스크장치.
  6. 제2항∼제4항중의 어느 1항에 있어서, 상기 디스크매체에 포매팅되는 트랙피치는 반경방향의 상기 교차각도의 최소부분에 걸쳐 소정영역마다 조밀상태로 설정되는 것을 특징으로 하는 디스크장치.
  7. 기록용헤드소자 및 이 기록용헤드소자로부터 디스크매체의 트랙폭 방향으로 폭이 좁은 재생용헤드소자가 이 디스크매체의 트랙 긴쪽방향으로 소정 갭으로 병설된 헤드를 회동구동제어수단에 의해 이 디스크매체의 반경방향으로 요동시켜서 이동시키는 디스크장치에 사용되는 디스크매체의 포맷 작성방법에 있어서, 상기 헤드의 상기 갭과 이 헤드가 위치하는 상기 디스크매체의 트랙과의 교차각도의 최소부분에서 소정 트랙에 이 헤드가 위치했을 때의 상기 기록용헤드소자의 단면으로부터 인접 트랙에 이 헤드가 위치했을 때의 상기 재생용헤드소자의 단면까지의 거리를 최소 트랙피치로 하고, 상기 헤드의 위치결정 정밀도로 정해지는 필요충분한 트랙피치를 최대 트랙피치로 한 범위내에서 상기 교차각도에 응한 상기 디스크매체의 반경방향의 각 위치에서의 그 거리를 각각 트랙피치로 하는 트랙피치량을 산출하는 스텝과, 상기 산출한 각각의 트랙피치량에 의해 상기 디스크매체를 포매팅하는 스텝을 포함하는 것을 특징으로 하는 디스크매체의 포맷 작성방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950018699A 1994-07-29 1995-06-30 디스크 장치 및 디스크 매체의 포맷 작성방법 KR100190427B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP94-179306 1994-07-29
JP6179306A JPH0845189A (ja) 1994-07-29 1994-07-29 ディスク装置及びディスク媒体のフォーマット作成方法

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Publication Number Publication Date
KR960005523A true KR960005523A (ko) 1996-02-23
KR100190427B1 KR100190427B1 (ko) 1999-06-01

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KR1019950018699A KR100190427B1 (ko) 1994-07-29 1995-06-30 디스크 장치 및 디스크 매체의 포맷 작성방법

Country Status (4)

Country Link
US (1) US5940237A (ko)
JP (1) JPH0845189A (ko)
KR (1) KR100190427B1 (ko)
DE (1) DE19522008A1 (ko)

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JPS61276110A (ja) * 1985-05-30 1986-12-06 Nec Corp 磁気抵抗効果型磁気ヘツド
US4669004A (en) * 1986-02-27 1987-05-26 Quantum Corporation High capacity disk file with embedded sector servo
US4802033A (en) * 1986-11-07 1989-01-31 Eastman Kodak Company Predictive positioning offset compensation for high TPI disk systems
JPH01119910A (ja) * 1987-11-04 1989-05-12 Hitachi Ltd 複合型薄膜ヘッド
US4945427A (en) * 1988-06-13 1990-07-31 International Business Machines Corporation Magnetic disk recording with variable track width and variable track density
JPH02260103A (ja) * 1989-03-30 1990-10-22 Matsushita Electric Ind Co Ltd トラック幅可変型記憶装置
US5073833A (en) * 1989-11-13 1991-12-17 International Business Machines Corporation Dual sector servo system for disk file with separate read and write heads
JPH04289576A (ja) * 1991-03-19 1992-10-14 Fujitsu Ltd 磁気ディスク装置
JPH0536038A (ja) * 1991-07-30 1993-02-12 Sony Corp 複合型磁気ヘツド
JPH0589622A (ja) * 1991-09-30 1993-04-09 Toshiba Corp 磁気デイスク装置および磁気ヘツド

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JPH0845189A (ja) 1996-02-16
KR100190427B1 (ko) 1999-06-01
US5940237A (en) 1999-08-17
DE19522008A1 (de) 1996-02-01

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