BE714187A - - Google Patents
Info
- Publication number
- BE714187A BE714187A BE714187DA BE714187A BE 714187 A BE714187 A BE 714187A BE 714187D A BE714187D A BE 714187DA BE 714187 A BE714187 A BE 714187A
- Authority
- BE
- Belgium
- Prior art keywords
- magnetic
- magnetic drum
- drum
- memory according
- disc
- Prior art date
Links
- 230000015654 memory Effects 0.000 claims description 23
- 238000010276 construction Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000003797 telogen phase Effects 0.000 description 1
- 230000007704 transition Effects 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
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
- G11B5/76—Drum carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/08—Track changing or selecting during transducing operation
- G11B21/081—Access to indexed tracks or parts of continuous track
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/02—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using cylindrical record carriers
-
- 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
-
- 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
- G11B5/54—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 with provision for moving the head into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5591—Track change, selection or acquisition by displacement of the head across drum tracks
Landscapes
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA0055603 | 1967-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE714187A true BE714187A (enrdf_load_stackoverflow) | 1968-09-16 |
Family
ID=6940079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE714187D BE714187A (enrdf_load_stackoverflow) | 1967-04-29 | 1968-04-25 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE714187A (enrdf_load_stackoverflow) |
| NL (1) | NL6805666A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2515457A1 (fr) * | 1981-10-27 | 1983-04-29 | Victor Company Of Japan | Support d'enregistrement cylindrique pour appareil d'enregistrement et/ou de reproduction |
| FR2515460A1 (fr) * | 1981-10-27 | 1983-04-29 | Victor Company Of Japan | Appareil d'enregistrement et de reproduction d'images |
-
1968
- 1968-04-22 NL NL6805666A patent/NL6805666A/xx unknown
- 1968-04-25 BE BE714187D patent/BE714187A/fr unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2515457A1 (fr) * | 1981-10-27 | 1983-04-29 | Victor Company Of Japan | Support d'enregistrement cylindrique pour appareil d'enregistrement et/ou de reproduction |
| FR2515460A1 (fr) * | 1981-10-27 | 1983-04-29 | Victor Company Of Japan | Appareil d'enregistrement et de reproduction d'images |
| US4567535A (en) * | 1981-10-27 | 1986-01-28 | Victor Company Of Japan, Ltd. | Recording and/or reproducing apparatus |
| US4604667A (en) * | 1981-10-27 | 1986-08-05 | Victor Company Of Japan, Ltd. | Recording medium for recording and/or reproducing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| NL6805666A (enrdf_load_stackoverflow) | 1968-10-30 |
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