FR1226987A - Perfectionnements apportés aux transducteurs magnétiques à bande - Google Patents
Perfectionnements apportés aux transducteurs magnétiques à bandeInfo
- Publication number
- FR1226987A FR1226987A FR797113A FR797113A FR1226987A FR 1226987 A FR1226987 A FR 1226987A FR 797113 A FR797113 A FR 797113A FR 797113 A FR797113 A FR 797113A FR 1226987 A FR1226987 A FR 1226987A
- Authority
- FR
- France
- Prior art keywords
- magnetic tape
- transducers
- tape transducers
- magnetic
- tape
- 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
- G11B5/49—Fixed mounting or arrangements, e.g. one head per track
- G11B5/4907—Details for scanning
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/782—Television signal recording using magnetic recording on tape
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Magnetic Heads (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US741401A US3152225A (en) | 1958-06-11 | 1958-06-11 | Magnetic tape transducer |
US843275A US3084227A (en) | 1958-06-11 | 1959-09-29 | Magnetic tape transducer |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1226987A true FR1226987A (fr) | 1960-08-18 |
Family
ID=27113854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR797113A Expired FR1226987A (fr) | 1958-06-11 | 1959-06-10 | Perfectionnements apportés aux transducteurs magnétiques à bande |
Country Status (3)
Country | Link |
---|---|
US (2) | US3152225A (fr) |
FR (1) | FR1226987A (fr) |
GB (2) | GB926384A (fr) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3188399A (en) * | 1960-11-28 | 1965-06-08 | Ampex | Magnetic transducing assembly |
US3391254A (en) * | 1964-10-15 | 1968-07-02 | William M. Honig | Magnetic head with means for producing a shiftable high permeability region in a magnetic permeable material |
US3453614A (en) * | 1965-01-06 | 1969-07-01 | Norman J Bose | Magnetic a/d encoder and method of producing same |
US3495230A (en) * | 1966-04-04 | 1970-02-10 | Sperry Rand Corp | Plated wire recording head with selective electronic switching to individual tracks |
US3629518A (en) * | 1969-11-10 | 1971-12-21 | Michael J Costa | Rotating field transformer and tape recording system using same |
US3752926A (en) * | 1971-10-28 | 1973-08-14 | P Smaller | Long wavelength signal enhancement for contact magnetic transfer recording |
JPS49120616A (fr) * | 1973-03-20 | 1974-11-18 | ||
US3893187A (en) * | 1973-03-20 | 1975-07-01 | Matsushita Electric Ind Co Ltd | Scanning magnetic head |
JPS49120615A (fr) * | 1973-03-20 | 1974-11-18 | ||
JPS52129219U (fr) * | 1977-03-31 | 1977-10-01 | ||
DE3060913D1 (en) * | 1979-05-12 | 1982-11-11 | Fujitsu Ltd | Improvement in method of manufacturing electronic device having multilayer wiring structure |
US4423450A (en) * | 1981-05-06 | 1983-12-27 | Censtor Corporation | Magnetic head and multitrack transducer for perpendicular recording and method for fabricating |
US4404609A (en) * | 1981-10-30 | 1983-09-13 | International Business Machines Corporation | Thin film inductive transducer for perpendicular recording |
JPS58137120A (ja) * | 1982-02-05 | 1983-08-15 | Hitachi Ltd | 薄膜磁気ヘツド |
JPS5914101A (ja) * | 1982-07-14 | 1984-01-25 | Hitachi Ltd | 磁気記録再生方式 |
DE3228307A1 (de) * | 1982-07-29 | 1983-03-17 | Konrad Dipl.-Phys. 5300 Bonn Jäger | Anordnung zur magnetischen signal-aufzeichnung und -wiedergabe |
US5119255A (en) * | 1984-08-16 | 1992-06-02 | Ampex Corporation | Magnetic saturation controlled scanning magnetic transducer |
US5227939A (en) * | 1984-08-16 | 1993-07-13 | Ampex Corporation | Scanning transducer having transverse information and control flux paths for reduced interference between fluxes |
US5153796A (en) * | 1984-08-16 | 1992-10-06 | Ampex Corporation | Method and apparatus for transferring information between two magnetic bodies using a third body of magnetic material |
US5189572A (en) * | 1984-08-16 | 1993-02-23 | Ampex Corporation | Magnetic control of a transducer signal transfer zone to effect tracking of a path along a record medium |
US4985795A (en) * | 1985-12-13 | 1991-01-15 | Ampex Corporation | Method and apparatus using a stationary magnetic body for effecting signal transfers between a moving magnetic core and a magnetic storage medium |
KR960003655B1 (ko) * | 1985-12-13 | 1996-03-21 | 암펙크스 시스템즈 코오포레이션 | 자기 기록 매체에 있어서 고정 가포화 부재를 이용한 신호 전달 방법 및 장치 |
BR8706802A (pt) * | 1986-03-24 | 1988-02-23 | Ampex | Sistema,aparelho e processo para controle de rastreamento por uma cabeca magnetica de exploracao magneticamente controlada |
US4922086A (en) * | 1987-10-19 | 1990-05-01 | Banctec, Inc. | Write head apparatus for recognizing magnetic characters and method therefor |
US5130876A (en) * | 1989-12-08 | 1992-07-14 | Ampex Corporation | Solid state scanning transducer that utilizes low flux densities |
EP0780833A3 (fr) * | 1995-12-20 | 1999-01-07 | Ampex Corporation | Système d'enregistrement magnétique amélioré à couche saturable et détection utilisant un élément MR |
US5830590A (en) * | 1996-06-28 | 1998-11-03 | Ampex Corporation | Magnetic storage and reproducing system with a low permeability keeper and a self-biased magnetoresistive reproduce head |
US5861220A (en) * | 1996-08-06 | 1999-01-19 | Ampex Corporation | Method and apparatus for providing a magnetic storage and reproducing media with a keeper layer having a longitudinal anisotropy |
US5843565A (en) * | 1996-10-31 | 1998-12-01 | Ampex Corporation | Particulate magnetic medium utilizing keeper technology and methods of manufacture |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2517808A (en) * | 1948-12-22 | 1950-08-08 | Rca Corp | Image recording and reproducing apparatus |
US2743320A (en) * | 1949-12-13 | 1956-04-24 | Sperry Rand Corp | Variable area magnetic recording system |
US2955169A (en) * | 1953-11-02 | 1960-10-04 | Grundig Max | Magnetic reproducing and recording head |
US2762861A (en) * | 1954-08-30 | 1956-09-11 | Rca Corp | Magnetic video recording and reproducing |
DE1026974B (de) * | 1955-02-09 | 1958-03-27 | Licentia Gmbh | Schreibkopf fuer magnetische Aufzeichnungen nach dem Grenzlinienverschiebungsverfahren |
CH336988A (fr) * | 1955-05-16 | 1959-03-15 | Clevite Corp | Procédé d'enregistrement magnétique et ensemble pour sa mise en oeuvre |
FR1154314A (fr) * | 1955-06-29 | 1958-04-04 | Licentia Gmbh | Tête d'inscription pour enregistrements magnétiques par le procédé de déplacement de la ligne limite |
-
1958
- 1958-06-11 US US741401A patent/US3152225A/en not_active Expired - Lifetime
-
1959
- 1959-06-03 GB GB19018/59A patent/GB926384A/en not_active Expired
- 1959-06-10 FR FR797113A patent/FR1226987A/fr not_active Expired
- 1959-09-29 US US843275A patent/US3084227A/en not_active Expired - Lifetime
-
1960
- 1960-09-29 GB GB33427/60A patent/GB968845A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3084227A (en) | 1963-04-02 |
GB968845A (en) | 1964-09-02 |
GB926384A (en) | 1963-05-15 |
US3152225A (en) | 1964-10-06 |
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