GB1385984A - Magnetic data storage - Google Patents
Magnetic data storageInfo
- Publication number
- GB1385984A GB1385984A GB3195572A GB3195572A GB1385984A GB 1385984 A GB1385984 A GB 1385984A GB 3195572 A GB3195572 A GB 3195572A GB 3195572 A GB3195572 A GB 3195572A GB 1385984 A GB1385984 A GB 1385984A
- Authority
- GB
- United Kingdom
- Prior art keywords
- domains
- domain
- conductors
- tracks
- plates
- 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
- 238000013500 data storage Methods 0.000 title 1
- 239000004020 conductor Substances 0.000 abstract 4
- 230000005855 radiation Effects 0.000 abstract 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical class Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000005381 magnetic domain Effects 0.000 abstract 1
- 229910000889 permalloy Inorganic materials 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- 229910052761 rare earth metal Inorganic materials 0.000 abstract 1
- 150000002910 rare earth metals Chemical class 0.000 abstract 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
- G11B5/48—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
- G11B5/4915—Structure of specially adapted heads
- G11B5/4923—Structure of specially adapted heads in which zones of the transducing part are being physically controllable
- G11B5/493—Control of magnetic properties, e.g. saturation, anisotropy
- G11B5/4938—Control of magnetic properties, e.g. saturation, anisotropy of thin magnetic films
- G11B5/4946—Control of magnetic properties, e.g. saturation, anisotropy of thin magnetic films for formation or displacement of magnetic domains, e.g. walls, bubbles
-
- 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
-
- 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
-
- 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)
- Magnetic Record Carriers (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7109572A NL7109572A (OSRAM) | 1971-07-10 | 1971-07-10 | |
| NL7204924A NL7204924A (OSRAM) | 1972-04-13 | 1972-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1385984A true GB1385984A (en) | 1975-03-05 |
Family
ID=26644673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3195572A Expired GB1385984A (en) | 1971-07-10 | 1972-07-07 | Magnetic data storage |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5326488B1 (OSRAM) |
| BE (1) | BE786085A (OSRAM) |
| CA (1) | CA1003955A (OSRAM) |
| DE (1) | DE2231877C3 (OSRAM) |
| FR (1) | FR2145567B1 (OSRAM) |
| GB (1) | GB1385984A (OSRAM) |
| IT (1) | IT964614B (OSRAM) |
| SE (1) | SE385630B (OSRAM) |
-
0
- BE BE786085D patent/BE786085A/xx unknown
-
1972
- 1972-06-29 DE DE19722231877 patent/DE2231877C3/de not_active Expired
- 1972-07-06 CA CA146,465A patent/CA1003955A/en not_active Expired
- 1972-07-07 GB GB3195572A patent/GB1385984A/en not_active Expired
- 1972-07-07 SE SE899672A patent/SE385630B/xx unknown
- 1972-07-07 IT IT6920672A patent/IT964614B/it active
- 1972-07-10 FR FR7224926A patent/FR2145567B1/fr not_active Expired
- 1972-07-10 JP JP6829672A patent/JPS5326488B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2145567B1 (OSRAM) | 1978-11-03 |
| BE786085A (fr) | 1973-01-10 |
| DE2231877B2 (de) | 1978-04-20 |
| FR2145567A1 (OSRAM) | 1973-02-23 |
| DE2231877A1 (de) | 1973-01-18 |
| IT964614B (it) | 1974-01-31 |
| DE2231877C3 (de) | 1978-12-07 |
| JPS5326488B1 (OSRAM) | 1978-08-02 |
| CA1003955A (en) | 1977-01-18 |
| SE385630B (sv) | 1976-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee | ||
| PCNP | Patent ceased through non-payment of renewal fee |