DE69727914T2 - Servosystem zur Spurführung von Magnetspuren mit Identifizierungspulsbreiten - Google Patents
Servosystem zur Spurführung von Magnetspuren mit Identifizierungspulsbreiten Download PDFInfo
- Publication number
- DE69727914T2 DE69727914T2 DE69727914T DE69727914T DE69727914T2 DE 69727914 T2 DE69727914 T2 DE 69727914T2 DE 69727914 T DE69727914 T DE 69727914T DE 69727914 T DE69727914 T DE 69727914T DE 69727914 T2 DE69727914 T2 DE 69727914T2
- Authority
- DE
- Germany
- Prior art keywords
- signal
- head
- pulse
- circuit
- response
- 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
- 238000000034 method Methods 0.000 claims description 32
- 230000004044 response Effects 0.000 claims description 28
- 239000002131 composite material Substances 0.000 claims description 19
- 230000004907 flux Effects 0.000 claims description 4
- 238000003708 edge detection Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000013461 design Methods 0.000 description 13
- 230000007704 transition Effects 0.000 description 9
- 101100333868 Homo sapiens EVA1A gene Proteins 0.000 description 7
- 102100031798 Protein eva-1 homolog A Human genes 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 241001136792 Alle Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 241001422033 Thestylus Species 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001343 mnemonic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
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
- G11B5/584—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 tapes
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/026—Control of operating function, e.g. switching from recording to reproducing by using processor, e.g. microcomputer
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US853241 | 1986-04-17 | ||
| US08/853,241 US5995315A (en) | 1997-05-09 | 1997-05-09 | Servo system for following a magnetic track having identifying pulse widths |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69727914D1 DE69727914D1 (de) | 2004-04-08 |
| DE69727914T2 true DE69727914T2 (de) | 2005-03-10 |
Family
ID=25315478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69727914T Expired - Fee Related DE69727914T2 (de) | 1997-05-09 | 1997-12-09 | Servosystem zur Spurführung von Magnetspuren mit Identifizierungspulsbreiten |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5995315A (enExample) |
| EP (1) | EP0877356B1 (enExample) |
| JP (1) | JP3869117B2 (enExample) |
| DE (1) | DE69727914T2 (enExample) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6101059A (en) * | 1998-04-28 | 2000-08-08 | Storage Technology Corporation | Synchronized read/write heads for double sided tape recording |
| US6496328B1 (en) | 1999-12-30 | 2002-12-17 | Advanced Research Corporation | Low inductance, ferrite sub-gap substrate structure for surface film magnetic recording heads |
| US6839196B2 (en) * | 2001-05-24 | 2005-01-04 | Quantum Corporation | Magnetic track following servo algorithm using signal quality |
| US6754022B1 (en) | 2001-07-16 | 2004-06-22 | Imation Corp. | High-speed current driver |
| US6781778B1 (en) * | 2001-07-16 | 2004-08-24 | Imation Corp. | Time-based sectored servo data format |
| US7072133B1 (en) | 2001-10-15 | 2006-07-04 | Imation Corp. | Servo mark verify head |
| US6798608B2 (en) | 2002-01-18 | 2004-09-28 | International Business Machines Corporation | Active detection and acquisition of a servo track subject to lateral motion |
| JP3591522B2 (ja) * | 2002-03-22 | 2004-11-24 | ブラザー工業株式会社 | モータ制御方法、モータ制御装置及びプリンタ |
| JP2004227704A (ja) * | 2003-01-24 | 2004-08-12 | Sony Corp | ヘッド装置、記録再生装置及び磁気記録方法 |
| US7106544B2 (en) * | 2003-05-09 | 2006-09-12 | Advanced Research Corporation | Servo systems, servo heads, servo patterns for data storage especially for reading, writing, and recording in magnetic recording tape |
| US7099102B2 (en) * | 2003-10-20 | 2006-08-29 | Quantum Corporation | Multiple format magnetic storage media drive |
| US8144424B2 (en) | 2003-12-19 | 2012-03-27 | Dugas Matthew P | Timing-based servo verify head and magnetic media made therewith |
| JP2007536683A (ja) | 2004-05-04 | 2007-12-13 | アドバンスト・リサーチ・コーポレーション | 任意形状のギャップ・パターンのための集積型薄膜サブギャップ／サブ磁極構造、磁気記録ヘッド、及びその製造方法 |
| US7206170B2 (en) * | 2004-05-19 | 2007-04-17 | Imetion Corp. | Thin film servo head apparatus with canted servo gaps |
| US7199958B2 (en) * | 2004-08-25 | 2007-04-03 | Imation Corp. | Servo head with varying write gap width |
| US7333291B1 (en) | 2006-09-28 | 2008-02-19 | Hewlett-Packard Development Company, L.P. | System and method for reducing tracking noise in a tape drive |
| US20080144211A1 (en) * | 2006-12-18 | 2008-06-19 | Weber Mark P | Servo techniques that mitigate an effect of read and write velocity variations on position error signal calculations |
| US7495859B2 (en) * | 2007-02-20 | 2009-02-24 | Imation Corp. | Interleaved servo pattern |
| JP2009151851A (ja) * | 2007-12-19 | 2009-07-09 | Sony Corp | 磁気テープ、磁気テープ装置、サーボパターン記録装置、磁気テープの製造方法及び記録方法 |
| US8068302B2 (en) | 2008-03-28 | 2011-11-29 | Advanced Research Corporation | Method of formatting magnetic media using a thin film planar arbitrary gap pattern magnetic head |
| US8767331B2 (en) | 2009-07-31 | 2014-07-01 | Advanced Research Corporation | Erase drive system and methods of erasure for tape data cartridge |
| JP4930617B2 (ja) * | 2010-03-26 | 2012-05-16 | ソニー株式会社 | 磁気テープ装置 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7600470A (nl) * | 1976-01-17 | 1977-07-19 | Philips Nv | Servosysteem voor het sturen van de positie van een magneetkop ten opzichte van een te volgen spoor. |
| DE3623705A1 (de) * | 1985-07-26 | 1987-01-29 | Mitec Moderne Ind Gmbh | Adressierbare schaltungsanordnung |
| JPS63161508A (ja) * | 1986-12-25 | 1988-07-05 | Toshiba Corp | フロツピ−デイスク装置の磁気ヘツド装置 |
| US4979051A (en) * | 1988-03-22 | 1990-12-18 | Eggebeen James A | Bimodal multi-track magnetic head |
| US5223994A (en) * | 1989-10-02 | 1993-06-29 | Behr Michael I | System using superimposed, orthogonal buried servo signals |
| US5132861A (en) * | 1989-10-02 | 1992-07-21 | Behr Michael I | Systems using superimposed, orthogonal buried servo signals |
| US5689384A (en) * | 1994-06-30 | 1997-11-18 | International Business Machines Corporation | Timing based servo system for magnetic tape systems |
-
1997
- 1997-05-09 US US08/853,241 patent/US5995315A/en not_active Expired - Lifetime
- 1997-12-09 DE DE69727914T patent/DE69727914T2/de not_active Expired - Fee Related
- 1997-12-09 EP EP97121689A patent/EP0877356B1/en not_active Expired - Lifetime
-
1998
- 1998-05-11 JP JP12762798A patent/JP3869117B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3869117B2 (ja) | 2007-01-17 |
| EP0877356B1 (en) | 2004-03-03 |
| EP0877356A2 (en) | 1998-11-11 |
| US5995315A (en) | 1999-11-30 |
| EP0877356A3 (en) | 2000-12-13 |
| DE69727914D1 (de) | 2004-04-08 |
| JPH1116137A (ja) | 1999-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69727914T2 (de) | Servosystem zur Spurführung von Magnetspuren mit Identifizierungspulsbreiten | |
| DE68925707T2 (de) | Detektieren einer Servosektor-Information in einem Plattensystem | |
| DE69415088T2 (de) | Magnetband mit Vielfachservozonen, verschachtelt mit Datenspurzonen | |
| DE4438395C2 (de) | Vorrichtung für plattenförmige Aufzeichnungsträger zur Erfassung einer Kopfposition durch Lesen eines Phasen-Servomusters | |
| DE60105437T2 (de) | Verfahren und vorrichtung zur regenerierung einer seitenposition eines servosystems in bezug zur langseitigen servospuren eines magnetbandes | |
| DE69217915T2 (de) | Methode und Vorrichtung zur Bestimmung der Bandposition für ein Band unter Verwendung eines speziellen Servo-Formates | |
| DE69526271T2 (de) | Vorrichtung und Verfahren zur Steuerung einer magnetischen Platteneinheit | |
| DE69028407T2 (de) | Plattenantriebssystem mit mehreren eingebetteten quadratur-servo-feldern | |
| DE69525323T2 (de) | Verbesserungen bei der Erzeugung eines Servosignalaufzeichnungszeitverlaufes | |
| DE112011100154B4 (de) | Verfahren zur Verwendung veränderlicher Zeitintervalle in einem Servoband | |
| DE3854924T2 (de) | Servomuster | |
| DE60004043T2 (de) | Aufzeichnung und synchronisierung eines datensatzes auf speichermedien | |
| DE68929158T2 (de) | Wiedergabegerät für Informationssignale und Verfahren zur Wiedergabe von Informationssignalen | |
| DE19522497B4 (de) | Magnetplatte, Magnetplattenlaufwerk und Datenzugriffsverfahren | |
| DE69028852T2 (de) | Verfahren und vorrichtung zur synchronisierung der taktsignale für aufzeichnungsgerät mit schrägspurverfahren | |
| DE19718114B4 (de) | Schaltung zum Verhindern, daß der Servosektor einer Platte überschrieben wird | |
| DE60000453T2 (de) | Fehlerkorrektur für schrägspur-bandlaufwerk durch benützung der spurprofilabbildung | |
| DE68913031T2 (de) | Magnetisches zeichenlesegerät. | |
| AT389787B (de) | Zeitzaehltaktgenerator | |
| DE112010002334B4 (de) | Steuerungsverfahren und Vorrichtung für ein Dualkanal-gewichtetes LPOS-Kombinierungsschema | |
| DE3735155C2 (enExample) | ||
| DE69217635T2 (de) | Verfahren und Vorrichtung zur magnetischen Datenübertragung mittels eines photographischen Filmstreifens unter Verwendung von eindeutigen Markierungen für Datenblöcke | |
| DE68918828T2 (de) | Gerät zur Aufzeichnung und Wiedergabe von Daten. | |
| DE69622775T2 (de) | Vorrichtung und Verfahren zur Erkennung eines Synchronmusters und eines Adressierungsmusters, die innerhalb der Daten, die von einem Aufzeichnungsmedium geliefert werden, liegen | |
| DE3721193A1 (de) | Verfahren und vorrichtung zum erfassen von steuersignalen, die auf einem aufzeichnungsmedium aufgezeichnet sind |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8332 | No legal effect for de | ||
| 8370 | Indication of lapse of patent is to be deleted | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |