JPS6214894B2 - - Google Patents
Info
- Publication number
- JPS6214894B2 JPS6214894B2 JP18586680A JP18586680A JPS6214894B2 JP S6214894 B2 JPS6214894 B2 JP S6214894B2 JP 18586680 A JP18586680 A JP 18586680A JP 18586680 A JP18586680 A JP 18586680A JP S6214894 B2 JPS6214894 B2 JP S6214894B2
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- recording
- metal film
- film pattern
- signal
- 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
- 239000002184 metal Substances 0.000 claims description 16
- 239000004065 semiconductor Substances 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 7
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 206010040844 Skin exfoliation Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- 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
- G11B21/083—Access to indexed tracks or parts of continuous track on discs
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18586680A JPS57109144A (en) | 1980-12-26 | 1980-12-26 | Signal recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18586680A JPS57109144A (en) | 1980-12-26 | 1980-12-26 | Signal recording and reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57109144A JPS57109144A (en) | 1982-07-07 |
| JPS6214894B2 true JPS6214894B2 (enrdf_load_stackoverflow) | 1987-04-04 |
Family
ID=16178242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18586680A Granted JPS57109144A (en) | 1980-12-26 | 1980-12-26 | Signal recording and reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57109144A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58169354A (ja) * | 1982-03-31 | 1983-10-05 | Hitachi Ltd | 情報記録円板 |
-
1980
- 1980-12-26 JP JP18586680A patent/JPS57109144A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57109144A (en) | 1982-07-07 |
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