FR2461995A1 - Transducteur magneto-electrique pour systeme d'enregistrement magnetique, et systeme d'enregistrement comportant un tel transducteur - Google Patents
Transducteur magneto-electrique pour systeme d'enregistrement magnetique, et systeme d'enregistrement comportant un tel transducteur Download PDFInfo
- Publication number
- FR2461995A1 FR2461995A1 FR7918811A FR7918811A FR2461995A1 FR 2461995 A1 FR2461995 A1 FR 2461995A1 FR 7918811 A FR7918811 A FR 7918811A FR 7918811 A FR7918811 A FR 7918811A FR 2461995 A1 FR2461995 A1 FR 2461995A1
- Authority
- FR
- France
- Prior art keywords
- magnetic
- recording
- transducer
- magneto
- circuit
- 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.)
- Granted
Links
- 230000005291 magnetic effect Effects 0.000 title abstract description 77
- 230000005355 Hall effect Effects 0.000 abstract description 8
- 238000004804 winding Methods 0.000 description 23
- 230000004907 flux Effects 0.000 description 8
- 150000001768 cations Chemical class 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/027—Analogue recording
- G11B5/035—Equalising
-
- 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
-
- 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
- G11B5/37—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using galvano-magnetic devices, e.g. Hall-effect devices using Hall or Hall-related effect, e.g. planar-Hall effect or pseudo-Hall effect
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Measuring Magnetic Variables (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7918811A FR2461995A1 (fr) | 1979-07-20 | 1979-07-20 | Transducteur magneto-electrique pour systeme d'enregistrement magnetique, et systeme d'enregistrement comportant un tel transducteur |
| EP80401050A EP0023175B1 (fr) | 1979-07-20 | 1980-07-11 | Transducteur magnéto-électrique pour système d'enregistrement magnétique, et système d'enregistrement comportant un tel transducteur |
| DE8080401050T DE3064755D1 (en) | 1979-07-20 | 1980-07-11 | Magneto-electric transducer for magnetic recording system and recording system comprising such a transducer |
| US06/169,353 US4400752A (en) | 1979-07-20 | 1980-07-16 | Magneto-electric transducer for a magnetic recording system and recording system comprising such a transducer |
| ES493505A ES8105107A1 (es) | 1979-07-20 | 1980-07-18 | Dispositivo transductor magneto-electrico para sistema de registro magnetico |
| JP9974380A JPS5654628A (en) | 1979-07-20 | 1980-07-21 | Magneticcelectric converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7918811A FR2461995A1 (fr) | 1979-07-20 | 1979-07-20 | Transducteur magneto-electrique pour systeme d'enregistrement magnetique, et systeme d'enregistrement comportant un tel transducteur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2461995A1 true FR2461995A1 (fr) | 1981-02-06 |
| FR2461995B1 FR2461995B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1983-09-23 |
Family
ID=9228111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7918811A Granted FR2461995A1 (fr) | 1979-07-20 | 1979-07-20 | Transducteur magneto-electrique pour systeme d'enregistrement magnetique, et systeme d'enregistrement comportant un tel transducteur |
Country Status (6)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6035728A (ja) * | 1983-07-20 | 1985-02-23 | Fuji Photo Film Co Ltd | 写真感光材料用包装材料 |
| US4593209A (en) * | 1984-05-24 | 1986-06-03 | Echlin Inc. | Read head for Wiegand Wire |
| US4668913A (en) * | 1985-03-14 | 1987-05-26 | International Business Machines Corporation | Constant flux magneto resistive magnetic reluctance sensing apparatus |
| NL8600390A (nl) * | 1986-02-17 | 1987-09-16 | Philips Nv | Magneetkop met magnetoweerstandselement. |
| US4914537A (en) * | 1987-04-24 | 1990-04-03 | Pioneer Electric Corporation | Magnetic head device having a bridge core |
| JP2722501B2 (ja) * | 1988-07-08 | 1998-03-04 | 東ソー株式会社 | ポリアリーレンチオエーテル共重合体及びその製造方法 |
| FR2645314B1 (fr) * | 1989-03-29 | 1991-05-31 | Commissariat Energie Atomique | Tete magnetique a magnetoresistance pour enregistrement longitudinal et procede de realisation d'une telle tete |
| FR2658647B1 (fr) * | 1990-02-21 | 1992-04-30 | Commissariat Energie Atomique | Tete magnetique horizontale a effet hall et son procede de realisation. |
| US5552589A (en) * | 1993-08-31 | 1996-09-03 | Eastman Kodak Company | Permanent magnet assembly with MR element for detection/authentication of magnetic documents |
| EP0651374A3 (en) * | 1993-11-01 | 1995-09-06 | Hewlett Packard Co | Planar magnetoresistive head. |
| AR035842A1 (es) * | 1999-05-14 | 2004-07-21 | Pharma Mar Sa | Metodo de hemisintesis para la formacion de compuestos intermediarios y derivados y de estructuras relacionadas con la ecteinascidina y de tetrahidroisoquinolinfenoles y compuestos intermediarios de aplicacion en dicho metodo |
| US9679588B1 (en) * | 2016-01-18 | 2017-06-13 | International Business Machines Corporation | Corrosion resistance in air bearing surfaces |
| JOP20190254A1 (ar) | 2017-04-27 | 2019-10-27 | Pharma Mar Sa | مركبات مضادة للأورام |
| US20190294831A1 (en) * | 2018-03-20 | 2019-09-26 | Nidec Sankyo Corporation | Magnetic head and card reader |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1224515A (fr) * | 1958-05-16 | 1960-06-24 | Siemens Ag | Tête de lecture d'enregistrements magnétiques |
| US2975241A (en) * | 1956-12-12 | 1961-03-14 | Armour Res Found | Means for counteracting shunt reluctance of a transducer head gap |
| US3146317A (en) * | 1959-07-14 | 1964-08-25 | Siemens Ag | Hall-effect magnetic transducer |
| FR2318479A1 (fr) * | 1975-07-17 | 1977-02-11 | Philips Nv | Tete magnetique realisee en couches minces et destinee a la lecture et l'inscription d'information |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3945038A (en) * | 1971-12-22 | 1976-03-16 | Compagnie Internationale Pour L'informatique | Read-write magnetoresistive transducer having a plurality of MR elements |
| US3921217A (en) * | 1971-12-27 | 1975-11-18 | Ibm | Three-legged magnetic recording head using a magnetorestive element |
| US4300177A (en) * | 1975-07-17 | 1981-11-10 | U.S. Philips Corporation | Thin-film magnetic head for reading and writing information |
| US4195323A (en) * | 1977-09-02 | 1980-03-25 | Magnex Corporation | Thin film magnetic recording heads |
| DE2843512A1 (de) * | 1978-10-03 | 1980-04-17 | Wolfdieter Wagener | Methode zur herstellung eines elektro-magnetischen wandlers |
-
1979
- 1979-07-20 FR FR7918811A patent/FR2461995A1/fr active Granted
-
1980
- 1980-07-11 EP EP80401050A patent/EP0023175B1/fr not_active Expired
- 1980-07-11 DE DE8080401050T patent/DE3064755D1/de not_active Expired
- 1980-07-16 US US06/169,353 patent/US4400752A/en not_active Expired - Lifetime
- 1980-07-18 ES ES493505A patent/ES8105107A1/es not_active Expired
- 1980-07-21 JP JP9974380A patent/JPS5654628A/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2975241A (en) * | 1956-12-12 | 1961-03-14 | Armour Res Found | Means for counteracting shunt reluctance of a transducer head gap |
| FR1224515A (fr) * | 1958-05-16 | 1960-06-24 | Siemens Ag | Tête de lecture d'enregistrements magnétiques |
| US3146317A (en) * | 1959-07-14 | 1964-08-25 | Siemens Ag | Hall-effect magnetic transducer |
| FR2318479A1 (fr) * | 1975-07-17 | 1977-02-11 | Philips Nv | Tete magnetique realisee en couches minces et destinee a la lecture et l'inscription d'information |
Non-Patent Citations (1)
| Title |
|---|
| EXBK/73 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES493505A0 (es) | 1981-05-16 |
| DE3064755D1 (en) | 1983-10-13 |
| US4400752A (en) | 1983-08-23 |
| ES8105107A1 (es) | 1981-05-16 |
| FR2461995B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1983-09-23 |
| JPS5654628A (en) | 1981-05-14 |
| EP0023175B1 (fr) | 1983-09-07 |
| EP0023175A1 (fr) | 1981-01-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse | ||
| ST | Notification of lapse | ||
| ST | Notification of lapse |