FR2269168A1 - - Google Patents
Info
- Publication number
- FR2269168A1 FR2269168A1 FR7513193A FR7513193A FR2269168A1 FR 2269168 A1 FR2269168 A1 FR 2269168A1 FR 7513193 A FR7513193 A FR 7513193A FR 7513193 A FR7513193 A FR 7513193A FR 2269168 A1 FR2269168 A1 FR 2269168A1
- Authority
- FR
- France
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Digital Magnetic Recording (AREA)
- Measuring Magnetic Variables (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7405727A NL7405727A (nl) | 1974-04-29 | 1974-04-29 | Magnetoweerstandkop. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2269168A1 true FR2269168A1 (US07585860-20090908-C00150.png) | 1975-11-21 |
| FR2269168B1 FR2269168B1 (US07585860-20090908-C00150.png) | 1981-06-12 |
Family
ID=19821255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7513193A Expired FR2269168B1 (US07585860-20090908-C00150.png) | 1974-04-29 | 1975-04-28 |
Country Status (7)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2308158A1 (fr) * | 1975-04-14 | 1976-11-12 | Philips Nv | Dispositif d'exploration magnetique |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4058705A (en) * | 1976-02-05 | 1977-11-15 | Cannon John W | Magnetic card reader |
| FR2389180A1 (fr) * | 1977-04-29 | 1978-11-24 | Cii Honeywell Bull | Dispositif de transduction magnetique de detection d'informations magnetiques codees et procede de fabrication dudit dispositif |
| FR2390778A1 (fr) * | 1977-05-13 | 1978-12-08 | Cii Honeywell Bull | Dispositif de lecture d'informations magnetiques |
| JPS5429528A (en) * | 1977-08-10 | 1979-03-05 | Hitachi Ltd | Magnetic pattern detector |
| JPS5459915A (en) * | 1977-10-20 | 1979-05-15 | Sony Corp | Method and apparatus for reading of magnetic recording signal |
| US4191977A (en) * | 1978-09-29 | 1980-03-04 | International Business Machines Corporation | Biasing of magnetoresistive read head using gyrators |
| JPS58154615A (ja) * | 1982-03-10 | 1983-09-14 | Copal Co Ltd | 磁気検出装置 |
| US4616281A (en) * | 1982-03-10 | 1986-10-07 | Copal Company Limited | Displacement detecting apparatus comprising magnetoresistive elements |
| CA1248222A (en) * | 1984-08-27 | 1989-01-03 | Yutaka Souda | Magnetic transducer head utilizing magnetoresistance effect |
| JPS61107520A (ja) * | 1984-10-31 | 1986-05-26 | Sony Corp | 多チヤンネル磁気抵抗効果型磁気ヘツド |
| SE459700B (sv) * | 1987-11-26 | 1989-07-24 | Profor Ab | Saett att undertrycka verkan av magnetiska stoerfaelt vid detektering av paa en baerare anbringade magnetiska maerken eller markeringar |
| US4962437A (en) * | 1988-02-24 | 1990-10-09 | Magnetic Peripherals Inc. | Thin film servo head employing the inactive transducer coils to cancel write noise from nearby data heads |
| US5508868A (en) * | 1993-01-25 | 1996-04-16 | Read-Rite Corporation | Dual element magnetoresistive sensing head having in-gap flux guide and flux closure piece with particular connection of magnetoresistive sensing elements to differential amplifier |
| AU2001240028A1 (en) * | 2000-03-03 | 2001-09-17 | Quetico Technologies, Inc. | Method and apparatus for reading recorded magnetic media using an array of reading elements |
| JP6370173B2 (ja) * | 2014-09-03 | 2018-08-08 | 日本電産サンキョー株式会社 | Ｍｒセンサおよびカードリーダ |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3493694A (en) * | 1966-01-19 | 1970-02-03 | Ampex | Magnetoresistive head |
| FR2165206A5 (US07585860-20090908-C00150.png) * | 1971-12-22 | 1973-08-03 | Cii | |
| US3814863A (en) * | 1972-10-11 | 1974-06-04 | Ibm | Internally biased magnetoresistive magnetic transducer |
| FR2219482B1 (US07585860-20090908-C00150.png) * | 1973-02-27 | 1978-03-03 | Cii | |
| US3860965A (en) * | 1973-10-04 | 1975-01-14 | Ibm | Magnetoresistive read head assembly having matched elements for common mode rejection |
-
1974
- 1974-04-29 NL NL7405727A patent/NL7405727A/xx not_active Application Discontinuation
-
1975
- 1975-04-16 DE DE2516593A patent/DE2516593C3/de not_active Expired
- 1975-04-17 US US05/568,994 patent/US3969769A/en not_active Expired - Lifetime
- 1975-04-25 GB GB17276/75A patent/GB1511905A/en not_active Expired
- 1975-04-25 CA CA225,491A patent/CA1046161A/en not_active Expired
- 1975-04-26 JP JP5026875A patent/JPS5634935B2/ja not_active Expired
- 1975-04-28 FR FR7513193A patent/FR2269168B1/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2308158A1 (fr) * | 1975-04-14 | 1976-11-12 | Philips Nv | Dispositif d'exploration magnetique |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2516593B2 (de) | 1978-03-23 |
| US3969769A (en) | 1976-07-13 |
| JPS50151129A (US07585860-20090908-C00150.png) | 1975-12-04 |
| JPS5634935B2 (US07585860-20090908-C00150.png) | 1981-08-13 |
| DE2516593C3 (de) | 1978-11-23 |
| DE2516593A1 (de) | 1975-10-30 |
| FR2269168B1 (US07585860-20090908-C00150.png) | 1981-06-12 |
| GB1511905A (en) | 1978-05-24 |
| NL7405727A (nl) | 1975-10-31 |
| CA1046161A (en) | 1979-01-09 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |