DE3481460D1 - Digitales steuerungsverfahren und -geraet zur kopfpositionierung einer speichereinrichtung. - Google Patents
Digitales steuerungsverfahren und -geraet zur kopfpositionierung einer speichereinrichtung.Info
- Publication number
- DE3481460D1 DE3481460D1 DE8484113745T DE3481460T DE3481460D1 DE 3481460 D1 DE3481460 D1 DE 3481460D1 DE 8484113745 T DE8484113745 T DE 8484113745T DE 3481460 T DE3481460 T DE 3481460T DE 3481460 D1 DE3481460 D1 DE 3481460D1
- Authority
- DE
- Germany
- Prior art keywords
- positioning
- head
- control method
- digital control
- storage device
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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
- G11B5/58—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
- G11B5/59655—Sector, sample or burst servo format
-
- 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
- G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
- G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58232406A JPS60124020A (ja) | 1983-12-08 | 1983-12-08 | デ−タ記憶装置のヘッド位置検出方式 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3481460D1 true DE3481460D1 (de) | 1990-04-05 |
Family
ID=16938740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484113745T Expired - Fee Related DE3481460D1 (de) | 1983-12-08 | 1984-11-14 | Digitales steuerungsverfahren und -geraet zur kopfpositionierung einer speichereinrichtung. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4720754A (de) |
EP (1) | EP0145962B1 (de) |
JP (1) | JPS60124020A (de) |
AU (1) | AU557917B2 (de) |
CA (1) | CA1265615A (de) |
DE (1) | DE3481460D1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4745497A (en) * | 1985-08-12 | 1988-05-17 | Fuji Electric Company Ltd. | Digital head position controller with triangle wave comparison |
JPH0612593B2 (ja) * | 1986-01-21 | 1994-02-16 | 富士電機株式会社 | デイスク記憶装置のヘツド位置のオフトラツク量検出方式 |
JPS63140469A (ja) * | 1986-12-03 | 1988-06-13 | Fuji Electric Co Ltd | デイスク記憶装置の基準トラツク検出方式 |
JP2657561B2 (ja) * | 1990-02-09 | 1997-09-24 | 富士通株式会社 | 位置決め制御方式 |
US5231550A (en) * | 1990-03-12 | 1993-07-27 | Fujitsu Limited | Track access control system preventing unintentional delay in movement of head in non-adjusted disc device |
US5432652A (en) * | 1993-06-14 | 1995-07-11 | International Business Machines Corporation | Servo and data format for magnetic tape having plural spaced-apart servo areas interleaved with data track areas having serpentine track scanning using any one of a plurality of number of concurrently accessed tracks |
US5574602A (en) * | 1993-06-14 | 1996-11-12 | International Business Machines Corporation | Processing servo signals concurrently read from plural spaced-apart servo areas for a magnetic tape having serpentine data track scanning |
US7219840B2 (en) * | 2003-01-17 | 2007-05-22 | Hewlett-Packard Development Company, L.P. | Calibrating fine actuator using a reference pattern |
JP2005025810A (ja) * | 2003-06-30 | 2005-01-27 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JP2005025820A (ja) * | 2003-06-30 | 2005-01-27 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
US7283320B2 (en) * | 2003-06-30 | 2007-10-16 | Fujifilm Corporation | Magnetic recording medium including servo and data bands in the magnetic layer |
KR100699878B1 (ko) * | 2005-11-18 | 2007-03-28 | 삼성전자주식회사 | 하드디스크 드라이브의 기록 전류 최적화 방법, 이에적합한 기록 매체 그리고 이에 적합한 장치 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4157577A (en) * | 1977-11-14 | 1979-06-05 | International Business Machines Corporation | Rotatable storage apparatus with digitally responsive circuitry for track selection |
GB2039089B (en) * | 1978-11-29 | 1983-04-13 | Burroughs Corp | Disc file head positioning system |
GB2064830A (en) * | 1979-11-28 | 1981-06-17 | Rca Corp | Transducer head tracking in prerecorded medium replay unit |
US4400747A (en) * | 1981-06-26 | 1983-08-23 | International Business Machines Corporation | Servo system for data storage apparatus |
DE3268189D1 (en) * | 1981-12-11 | 1986-02-06 | Burroughs Corp | Improvements in and relating to differential signal decoders |
US4454549A (en) * | 1982-06-28 | 1984-06-12 | International Business Machines Corporation | Slant track sector servo |
US4530019A (en) * | 1984-06-04 | 1985-07-16 | Dma Systems | Servo pattern |
-
1983
- 1983-12-08 JP JP58232406A patent/JPS60124020A/ja active Granted
-
1984
- 1984-11-14 EP EP84113745A patent/EP0145962B1/de not_active Expired - Lifetime
- 1984-11-14 DE DE8484113745T patent/DE3481460D1/de not_active Expired - Fee Related
- 1984-12-06 US US06/678,852 patent/US4720754A/en not_active Expired - Fee Related
- 1984-12-07 AU AU36386/84A patent/AU557917B2/en not_active Ceased
- 1984-12-07 CA CA000469545A patent/CA1265615A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA1265615A (en) | 1990-02-06 |
AU557917B2 (en) | 1987-01-15 |
EP0145962B1 (de) | 1990-02-28 |
EP0145962A3 (en) | 1987-03-18 |
JPS60124020A (ja) | 1985-07-02 |
EP0145962A2 (de) | 1985-06-26 |
US4720754A (en) | 1988-01-19 |
JPH0132571B2 (de) | 1989-07-06 |
AU3638684A (en) | 1985-06-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |