ATE55195T1 - Schreib-lesekopfstruktur fuer doppelspurige senkrechte aufzeichnung. - Google Patents
Schreib-lesekopfstruktur fuer doppelspurige senkrechte aufzeichnung.Info
- Publication number
- ATE55195T1 ATE55195T1 AT84114664T AT84114664T ATE55195T1 AT E55195 T1 ATE55195 T1 AT E55195T1 AT 84114664 T AT84114664 T AT 84114664T AT 84114664 T AT84114664 T AT 84114664T AT E55195 T1 ATE55195 T1 AT E55195T1
- Authority
- AT
- Austria
- Prior art keywords
- read
- write head
- head structure
- track vertical
- double track
- Prior art date
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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3945—Heads comprising more than one sensitive element
- G11B5/3948—Heads comprising more than one sensitive element the sensitive elements being active read-out elements
- G11B5/3951—Heads comprising more than one sensitive element the sensitive elements being active read-out elements the active elements being arranged on several parallel planes
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/332—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using thin films
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/399—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures with intrinsic biasing, e.g. provided by equipotential strips
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/584,364 US4626946A (en) | 1984-02-28 | 1984-02-28 | Twin track vertical read-write head structure |
EP84114664A EP0154005B1 (de) | 1984-02-28 | 1984-12-04 | Schreib-Lesekopfstruktur für doppelspurige senkrechte Aufzeichnung |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE55195T1 true ATE55195T1 (de) | 1990-08-15 |
Family
ID=24337018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT84114664T ATE55195T1 (de) | 1984-02-28 | 1984-12-04 | Schreib-lesekopfstruktur fuer doppelspurige senkrechte aufzeichnung. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4626946A (de) |
EP (1) | EP0154005B1 (de) |
JP (1) | JPS60182509A (de) |
AT (1) | ATE55195T1 (de) |
AU (2) | AU577353B2 (de) |
BR (1) | BR8500630A (de) |
CA (1) | CA1224565A (de) |
DE (1) | DE3482881D1 (de) |
ES (1) | ES8606706A1 (de) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61199684A (ja) * | 1985-03-01 | 1986-09-04 | Hitachi Ltd | 磁気抵抗効果型素子 |
US4802043A (en) * | 1985-03-25 | 1989-01-31 | Hitachi, Ltd. | Magneto-resistive head for protecting against output spike noises |
JPS629514A (ja) * | 1985-07-05 | 1987-01-17 | Nec Corp | 薄膜磁気ヘツド |
US4698711A (en) * | 1985-10-02 | 1987-10-06 | International Business Machines Corporation | Simplified, shielded twin-track read/write head structure |
US4782415A (en) * | 1985-10-02 | 1988-11-01 | International Business Machines Corp. | Differential twin track vertical read/write magnetic head structure |
JPH07105006B2 (ja) * | 1985-11-05 | 1995-11-13 | ソニー株式会社 | 磁気抵抗効果型磁気ヘツド |
US4799115A (en) * | 1986-10-27 | 1989-01-17 | International Business Machines Corp. | Method and apparatus for tolerating track misregistration systems in twin track vertical recording systems |
US4771349A (en) * | 1986-10-31 | 1988-09-13 | International Business Machine Corporation | Magnetoresistive read transducer |
US4885649A (en) * | 1987-04-01 | 1989-12-05 | Digital Equipment Corporation | Thin film head having a magneto-restrictive read element |
WO1988007741A1 (en) * | 1987-04-01 | 1988-10-06 | Digital Equipment Corporation | Magneto-resistive thin film head for digital magnetic storage device |
US5159511A (en) * | 1987-04-01 | 1992-10-27 | Digital Equipment Corporation | Biasing conductor for MR head |
US5081554A (en) * | 1987-04-01 | 1992-01-14 | Digital Equipment Corporation | Biasing conductor for MR head |
US4907113A (en) * | 1987-07-29 | 1990-03-06 | Digital Equipment Corporation | Three-pole magnetic recording head |
US5111352A (en) * | 1987-07-29 | 1992-05-05 | Digital Equipment Corporation | Three-pole magnetic head with reduced flux leakage |
US5103553A (en) * | 1987-07-29 | 1992-04-14 | Digital Equipment Corporation | Method of making a magnetic recording head |
US4860138A (en) * | 1987-11-12 | 1989-08-22 | International Business Machines Corp. | Differentially sensitive single track read/write head design with improved biasing |
US5089334A (en) * | 1988-08-03 | 1992-02-18 | Digital Equipment Corporation | Flux spreading thin film magnetic devices |
US5085935A (en) * | 1988-08-03 | 1992-02-04 | Digital Equipment Corporation | Flux spreading thin film magnetic devices |
CA1334447C (en) * | 1988-08-03 | 1995-02-14 | Digital Equipment Corporation | Perpendicular anisotropy in thin film devices |
FR2645315B1 (fr) * | 1989-03-29 | 1991-05-31 | Commissariat Energie Atomique | Tete magnetique de lecture a magnetoresistance pour enregistrement perpendiculaire et procede de realisation d'une telle tete |
US5428893A (en) * | 1989-06-02 | 1995-07-04 | Quantum Corporation | Method of making a transducer with improved inductive coupling |
US5184267A (en) * | 1989-06-02 | 1993-02-02 | Digital Equipment Corporation | Transducer with improved inductive coupling |
US5195005A (en) * | 1989-06-02 | 1993-03-16 | Digital Equipment Corporation | Tranducer with improved inductive coupling |
US5311386A (en) * | 1989-06-02 | 1994-05-10 | Digital Equipment Corporation | Transducer with improved inductive coupling |
US5155642A (en) * | 1989-11-29 | 1992-10-13 | International Business Machines Corporation | Anisotropy configuration for longitudinally constrained magnetoresistive transducers |
FR2665011B1 (fr) * | 1990-07-20 | 1992-09-18 | Thomson Csf | Tete magnetique de lecture a effet magneto-resistif. |
US5331496A (en) * | 1992-02-14 | 1994-07-19 | Digital Equipment Corporation | Thin-film magnetic transducer with a multitude of magnetic flux interactions |
US5307226A (en) * | 1992-06-05 | 1994-04-26 | Hewlett-Packard Company | Improved magnetoresistive transducer with substantially perpendicular easy axis |
US5388014A (en) * | 1993-09-10 | 1995-02-07 | Hewlett-Packard Company | Apparatus and method of sensing the position of a magnetic head |
EP0651374A3 (de) * | 1993-11-01 | 1995-09-06 | Hewlett Packard Co | Planarer magnetoresistiver Kopf. |
JP2780916B2 (ja) * | 1993-12-08 | 1998-07-30 | 富士通株式会社 | 垂直磁気記録用磁気ヘッド |
US6510031B1 (en) * | 1995-03-31 | 2003-01-21 | International Business Machines Corporation | Magnetoresistive sensor with magnetostatic coupling to obtain opposite alignment of magnetic regions |
EP0889460B1 (de) * | 1997-07-04 | 2003-09-24 | STMicroelectronics S.r.l. | Ein elektromagnetischer Kopf mit magnetoresistiven Mitteln verbunden mit einem Magnetkern |
JP4936030B2 (ja) * | 2010-03-10 | 2012-05-23 | Tdk株式会社 | 磁気センサ |
US9104922B2 (en) * | 2012-06-15 | 2015-08-11 | Honeywell International Inc. | Anisotropic magneto-resistance (AMR) gradiometer/magnetometer to read a magnetic track |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3860965A (en) * | 1973-10-04 | 1975-01-14 | Ibm | Magnetoresistive read head assembly having matched elements for common mode rejection |
JPS5179323A (ja) * | 1974-12-30 | 1976-07-10 | Fujitsu Ltd | Jikihetsudosochi |
JPS5181115A (ja) * | 1975-01-13 | 1976-07-15 | Matsushita Electric Ind Co Ltd | Jikihetsudo |
US4300177A (en) * | 1975-07-17 | 1981-11-10 | U.S. Philips Corporation | Thin-film magnetic head for reading and writing information |
US4141051A (en) * | 1977-10-11 | 1979-02-20 | U.S. Philips Corporation | Variable dynamic range magneto-resistive head |
US4306215A (en) * | 1979-03-23 | 1981-12-15 | Spin Physics, Inc. | Thin magnetoresistive head |
US4413296A (en) * | 1979-07-16 | 1983-11-01 | Eastman Kodak Company | Thin film magnetoresistive head |
FR2502375B1 (fr) * | 1981-03-20 | 1989-08-18 | Cii Honeywell Bull | Transducteur magnetoresistant de lecture d'informations a tres haute densite |
JPS581802A (ja) * | 1981-06-27 | 1983-01-07 | Victor Co Of Japan Ltd | 磁気記録再生方式及び磁気ヘツド |
US4484238A (en) * | 1982-06-15 | 1984-11-20 | International Business Machines Corporation | Dual track magnetic recording method |
US4485419A (en) * | 1982-06-15 | 1984-11-27 | International Business Machines Corporation | Complementary pole coupling magnetic head structure |
-
1984
- 1984-02-28 US US06/584,364 patent/US4626946A/en not_active Expired - Lifetime
- 1984-12-04 DE DE8484114664T patent/DE3482881D1/de not_active Expired - Fee Related
- 1984-12-04 AT AT84114664T patent/ATE55195T1/de not_active IP Right Cessation
- 1984-12-04 EP EP84114664A patent/EP0154005B1/de not_active Expired - Lifetime
- 1984-12-18 CA CA000470450A patent/CA1224565A/en not_active Expired
- 1984-12-19 JP JP59266577A patent/JPS60182509A/ja active Granted
- 1984-12-20 ES ES538882A patent/ES8606706A1/es not_active Expired
-
1985
- 1985-02-11 AU AU38598/85A patent/AU577353B2/en not_active Ceased
- 1985-02-12 BR BR8500630A patent/BR8500630A/pt unknown
-
1988
- 1988-08-01 AU AU20262/88A patent/AU591603B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
AU577353B2 (en) | 1988-09-22 |
AU3859885A (en) | 1985-09-05 |
JPS60182509A (ja) | 1985-09-18 |
EP0154005A3 (en) | 1987-04-22 |
EP0154005B1 (de) | 1990-08-01 |
CA1224565A (en) | 1987-07-21 |
AU591603B2 (en) | 1989-12-07 |
AU2026288A (en) | 1988-11-03 |
DE3482881D1 (de) | 1990-09-06 |
ES538882A0 (es) | 1986-04-16 |
BR8500630A (pt) | 1985-10-01 |
ES8606706A1 (es) | 1986-04-16 |
US4626946A (en) | 1986-12-02 |
EP0154005A2 (de) | 1985-09-11 |
JPH0259522B2 (de) | 1990-12-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |