DE3066613D1 - Buried servo track data recording systems - Google Patents
Buried servo track data recording systemsInfo
- Publication number
- DE3066613D1 DE3066613D1 DE8080105783T DE3066613T DE3066613D1 DE 3066613 D1 DE3066613 D1 DE 3066613D1 DE 8080105783 T DE8080105783 T DE 8080105783T DE 3066613 T DE3066613 T DE 3066613T DE 3066613 D1 DE3066613 D1 DE 3066613D1
- Authority
- DE
- Germany
- Prior art keywords
- data recording
- track data
- servo track
- recording systems
- buried servo
- 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
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
-
- 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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase 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
- G11B5/5965—Embedded servo format
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/101,379 US4313140A (en) | 1979-12-07 | 1979-12-07 | Buried control signal recording systems and method |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3066613D1 true DE3066613D1 (en) | 1984-03-22 |
Family
ID=22284355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8080105783T Expired DE3066613D1 (en) | 1979-12-07 | 1980-09-25 | Buried servo track data recording systems |
Country Status (6)
Country | Link |
---|---|
US (1) | US4313140A (de) |
EP (1) | EP0030256B1 (de) |
JP (1) | JPS6049967B2 (de) |
BR (1) | BR8007948A (de) |
CA (1) | CA1143831A (de) |
DE (1) | DE3066613D1 (de) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4390911A (en) * | 1981-04-30 | 1983-06-28 | International Business Machines Corporation | Signal separation in magnetic recording using buried servo |
DE3279550D1 (en) * | 1982-04-29 | 1989-04-20 | Ibm | A method for recording data on a magnetic recording medium |
US4547817A (en) * | 1982-04-29 | 1985-10-15 | International Business Machines Corporation | High frequency magnetic recording method |
JPS5963005A (ja) * | 1982-10-04 | 1984-04-10 | Toshiba Corp | 磁気記録方式 |
JPS6038702A (ja) * | 1983-08-09 | 1985-02-28 | Comput Basic Mach Technol Res Assoc | 信号再生回路 |
JPS6074116A (ja) * | 1983-09-29 | 1985-04-26 | Hitachi Ltd | 磁気記録媒体 |
US4652945A (en) * | 1985-05-03 | 1987-03-24 | Eastman Kodak Company | Flux sensitive tracking |
US4670800A (en) * | 1985-05-03 | 1987-06-02 | Eastman Kodak Company | Edge guided magnetic tape tracking |
US4611249A (en) * | 1985-05-03 | 1986-09-09 | Eastman Kodak Company | Flux sensitive tracking |
US4980782A (en) * | 1985-06-03 | 1990-12-25 | Peter Ginkel | Software protection and identification system |
US4858036A (en) * | 1986-08-04 | 1989-08-15 | Peter Ginkel | Software protection and identification system |
JPH0772924B2 (ja) * | 1985-06-13 | 1995-08-02 | ソニー株式会社 | 記録方法、記録再生方法、記録装置及び記録再生装置 |
US5070421A (en) * | 1987-09-25 | 1991-12-03 | Fuji Xerox Co., Ltd. | Magnetic disk system having tracking control using recorded information |
US4979051A (en) * | 1988-03-22 | 1990-12-18 | Eggebeen James A | Bimodal multi-track magnetic head |
US4975791A (en) * | 1988-03-22 | 1990-12-04 | Carlisle Memory Products Group Incorporated | Recording system having head transducers with controlled skew |
JPH0743804B2 (ja) * | 1988-03-23 | 1995-05-15 | 日本ビクター株式会社 | 磁気記録装置及び磁気記録再生装置 |
JPH02232803A (ja) * | 1989-03-06 | 1990-09-14 | Nec Corp | 磁気ヘッド |
US5132861A (en) * | 1989-10-02 | 1992-07-21 | Behr Michael I | Systems using superimposed, orthogonal buried servo signals |
US5321570A (en) * | 1989-10-02 | 1994-06-14 | Behr Michael I | Systems using superimposed, orthogonal buried servo signals |
US5223994A (en) * | 1989-10-02 | 1993-06-29 | Behr Michael I | System using superimposed, orthogonal buried servo signals |
US5568331A (en) * | 1989-10-27 | 1996-10-22 | Hitachi, Ltd. | Method of head positioning and magnetic recording disk drive using the same |
JPH0467303A (ja) * | 1990-07-03 | 1992-03-03 | Nec Corp | 磁気ディスク装置の書込み読出し回路 |
JPH05120616A (ja) * | 1991-10-25 | 1993-05-18 | Teac Corp | デイスク装置 |
US5319502A (en) * | 1992-01-10 | 1994-06-07 | International Business Machines Corporation | System and method for employing buried servos within a magnetic recording medium |
US6700732B1 (en) * | 1993-07-30 | 2004-03-02 | Washington University | Method and apparatus for a vernier magnetic recording head |
US6025967A (en) * | 1993-08-24 | 2000-02-15 | Imation Corp. | Method of identifying magnetic tape characteristics |
TW331005B (en) * | 1995-11-10 | 1998-05-01 | Philips Electronics Nv | System, apparatus and method for recording /reproducing information in/form a magnetic medium |
JP3447164B2 (ja) * | 1995-12-08 | 2003-09-16 | 松下電器産業株式会社 | 磁気記録再生装置 |
US6456449B1 (en) | 1997-08-07 | 2002-09-24 | International Business Machines Corporation | Disk drive with wide servo burst pattern and wide servo sensing element |
NL1015834C2 (nl) * | 2000-07-28 | 2002-01-29 | Onstream B V | Werkwijze voor het op verschillende diepte schrijven van informatie in een magnetische band. |
US7133233B1 (en) * | 2000-10-24 | 2006-11-07 | Maxtor Corporation | Disk drive with read while write capability |
JP3776797B2 (ja) * | 2001-12-28 | 2006-05-17 | 株式会社東芝 | 磁気記録再生装置 |
US9177598B2 (en) * | 2011-11-21 | 2015-11-03 | Marvell International Ltd. | Device, method of fabricating a media and method of servo writing |
US9685181B2 (en) * | 2013-09-02 | 2017-06-20 | Marvell International Ltd. | Method of operating a data storage apparatus and data storage apparatus |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB987357A (en) * | 1962-11-30 | 1965-03-24 | Ibm | Memory system employing a magnetic recording medium |
US3534344A (en) * | 1967-12-21 | 1970-10-13 | Ibm | Method and apparatus for recording and detecting information |
US3614756A (en) * | 1970-01-21 | 1971-10-19 | Ibm | Magnetic record with servo track perpendicular to information track |
BE794737A (fr) * | 1972-02-18 | 1973-05-16 | Ibm | Systemes d'enregistrement de signaux digitaux |
US3821798A (en) * | 1972-02-18 | 1974-06-28 | Ibm | Resynchronizable recording system |
US3864741A (en) * | 1973-06-28 | 1975-02-04 | Ibm | Servo channel equalization network |
US3864740A (en) * | 1973-11-05 | 1975-02-04 | Information Storage Systems | Track following servo system |
US3845500A (en) * | 1973-11-12 | 1974-10-29 | Ibm | Head to track alignment in a rotating head magnetic tape unit |
US3956769A (en) * | 1974-08-12 | 1976-05-11 | Control Data Corporation | Recording system having coinciding servo and data tracks |
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. |
-
1979
- 1979-12-07 US US06/101,379 patent/US4313140A/en not_active Expired - Lifetime
-
1980
- 1980-09-25 DE DE8080105783T patent/DE3066613D1/de not_active Expired
- 1980-09-25 EP EP80105783A patent/EP0030256B1/de not_active Expired
- 1980-10-27 CA CA000363334A patent/CA1143831A/en not_active Expired
- 1980-12-04 BR BR8007948A patent/BR8007948A/pt unknown
- 1980-12-05 JP JP55171067A patent/JPS6049967B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA1143831A (en) | 1983-03-29 |
JPS56105306A (en) | 1981-08-21 |
BR8007948A (pt) | 1981-06-23 |
JPS6049967B2 (ja) | 1985-11-06 |
EP0030256B1 (de) | 1984-02-15 |
EP0030256A1 (de) | 1981-06-17 |
US4313140A (en) | 1982-01-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8339 | Ceased/non-payment of the annual fee |