JPS5953610B2 - 磁気記録媒体 - Google Patents
磁気記録媒体Info
- Publication number
- JPS5953610B2 JPS5953610B2 JP54016258A JP1625879A JPS5953610B2 JP S5953610 B2 JPS5953610 B2 JP S5953610B2 JP 54016258 A JP54016258 A JP 54016258A JP 1625879 A JP1625879 A JP 1625879A JP S5953610 B2 JPS5953610 B2 JP S5953610B2
- Authority
- JP
- Japan
- Prior art keywords
- data
- zones
- magnetic
- track
- bit
- 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
- 230000005415 magnetization Effects 0.000 claims description 42
- 230000007547 defect Effects 0.000 claims description 16
- 230000002950 deficient Effects 0.000 claims description 5
- 230000006698 induction Effects 0.000 description 22
- 238000000034 method Methods 0.000 description 17
- 210000004027 cell Anatomy 0.000 description 15
- 239000000696 magnetic material Substances 0.000 description 7
- 230000015654 memory Effects 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000008520 organization Effects 0.000 description 3
- 101100236977 Arabidopsis thaliana MED16 gene Proteins 0.000 description 2
- 101100351314 Caenorhabditis elegans pdk-1 gene Proteins 0.000 description 2
- 101150020421 SFR2 gene Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 210000004460 N cell Anatomy 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
- G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating 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
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
- Digital Magnetic Recording (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7804498A FR2417824A1 (fr) | 1978-02-17 | 1978-02-17 | Mode d'ecriture d'informations sur un support d'enregistrement magnetique |
FR000007804498 | 1978-02-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54115212A JPS54115212A (en) | 1979-09-07 |
JPS5953610B2 true JPS5953610B2 (ja) | 1984-12-26 |
Family
ID=9204707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54016258A Expired JPS5953610B2 (ja) | 1978-02-17 | 1979-02-16 | 磁気記録媒体 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4354210A (en, 2012) |
JP (1) | JPS5953610B2 (en, 2012) |
DE (1) | DE2906020A1 (en, 2012) |
FR (1) | FR2417824A1 (en, 2012) |
GB (1) | GB2017364B (en, 2012) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4405956A (en) * | 1981-04-22 | 1983-09-20 | Xerox Corporation | Tracking apparatus for read/write head |
US4472750A (en) * | 1981-07-02 | 1984-09-18 | Irwin Magnetic Systems, Inc. | Data record with pre-recorded transducer positioning signals, and system for utilizing same |
US4424543A (en) * | 1981-11-16 | 1984-01-03 | Dma Systems Corporation | Method and apparatus for recording transducer positioning information |
BR8207978A (pt) * | 1981-11-16 | 1983-10-04 | Dma Systems Corp | Processo de gravacao de codigo de identificacao de trilha |
US4685007A (en) * | 1983-12-21 | 1987-08-04 | Computer Memories, Incorporated | Disk drive with track zero location system |
DE3706159A1 (de) * | 1987-02-26 | 1988-09-08 | Thomson Brandt Gmbh | Verfahren zur spurfindung bei einem aufzeichnungsgeraet |
FR2615995A1 (fr) * | 1987-05-27 | 1988-12-02 | Bull Sa | Mode d'ecriture d'informations sur un support d'enregistrement magnetique |
JPH02247320A (ja) * | 1989-03-20 | 1990-10-03 | Nkk Corp | 脱ガス精錬用浸漬管 |
US5418670A (en) * | 1991-07-29 | 1995-05-23 | Eastman Kodak Company | Magnetic recording medium having a servo pattern of the intermittent type with compensation for suppressing self-generated residual fields |
KR100195183B1 (ko) * | 1995-12-19 | 1999-06-15 | 윤종용 | 데이타 필드가 확장된 하드 디스크 드라이브 |
US6014283A (en) * | 1997-05-15 | 2000-01-11 | Western Digital Corporation | Non-quadrature servo burst pattern for micro-jogging a magnetoresistive head in a magnetic disk drive |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3864741A (en) * | 1973-06-28 | 1975-02-04 | Ibm | Servo channel equalization network |
US4032984A (en) * | 1975-04-28 | 1977-06-28 | Burroughs Corporation | Transducer positioning system for providing both coarse and fine positioning |
FR2336768A1 (fr) * | 1975-12-24 | 1977-07-22 | Honeywell Bull Soc Ind | Procede pour deplacer un systeme mobile par rapport a un support d'enregistrement d'informations et dispositif pour le mettre en oeuvre |
FR2346806A1 (fr) * | 1976-03-31 | 1977-10-28 | Honeywell Bull Soc Ind | Mode d'ecriture d'adresses sur un support d'enregist rement magnetique |
FR2365178A1 (fr) * | 1976-09-20 | 1978-04-14 | Cii Honeywell Bull | Procede de lecture d'adresses sur un support d'enregistrement magnetique et dispositif pour le mettre en oeuvre |
FR2379112A1 (fr) * | 1977-01-27 | 1978-08-25 | Cii Honeywell Bull | Mode d'ecriture d'informations concernant les defauts d'un support d'enregistrement magnetique |
-
1978
- 1978-02-17 FR FR7804498A patent/FR2417824A1/fr active Granted
-
1979
- 1979-02-12 GB GB7904885A patent/GB2017364B/en not_active Expired
- 1979-02-16 DE DE19792906020 patent/DE2906020A1/de active Granted
- 1979-02-16 JP JP54016258A patent/JPS5953610B2/ja not_active Expired
- 1979-02-16 US US06/013,796 patent/US4354210A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4354210A (en) | 1982-10-12 |
GB2017364A (en) | 1979-10-03 |
DE2906020C2 (en, 2012) | 1988-04-07 |
FR2417824A1 (fr) | 1979-09-14 |
JPS54115212A (en) | 1979-09-07 |
DE2906020A1 (de) | 1979-08-30 |
GB2017364B (en) | 1982-04-15 |
FR2417824B1 (en, 2012) | 1980-09-12 |
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