BE661368A - - Google Patents
Info
- Publication number
- BE661368A BE661368A BE661368DA BE661368A BE 661368 A BE661368 A BE 661368A BE 661368D A BE661368D A BE 661368DA BE 661368 A BE661368 A BE 661368A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/68—Record carriers
- G11B3/72—Groove formations, e.g. run-in groove, run-out groove
- G11B3/74—Multiple output tracks, e.g. binaural stereophonic
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
- G11B13/02—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically and by styli
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B13/00—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for
- G11B13/04—Recording simultaneously or selectively by methods covered by different main groups among G11B3/00, G11B5/00, G11B7/00 and G11B9/00; Record carriers therefor not otherwise provided for; Reproducing therefrom not otherwise provided for magnetically or by magnetisation and optically or by radiation, for changing or sensing optical properties
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET0025845 | 1964-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE661368A true BE661368A (de) | 1965-07-16 |
Family
ID=7552346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE661368D BE661368A (de) | 1964-03-19 | 1965-03-19 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3373997A (de) |
| AT (1) | AT247021B (de) |
| BE (1) | BE661368A (de) |
| CH (1) | CH424299A (de) |
| DE (1) | DE1447154A1 (de) |
| GB (1) | GB1046718A (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56117341A (en) * | 1980-02-18 | 1981-09-14 | Toshiba Corp | Optical disk and its manufacture |
| JPS56145535A (en) * | 1980-04-15 | 1981-11-12 | Matsushita Electric Ind Co Ltd | Disc for optical recording |
| US4741977A (en) * | 1985-08-20 | 1988-05-03 | Tdk Corporation | Magnetic sheet |
| US4935835A (en) * | 1988-11-10 | 1990-06-19 | Insite Peripherals, Inc. | Magnetic media containing reference feature and methods for referencing magnetic head position to the reference feature |
| US5220476A (en) * | 1990-11-02 | 1993-06-15 | Godwin Jimmy D | Non-erasable magnetic data storage method |
| WO1993012520A1 (en) * | 1991-12-17 | 1993-06-24 | Certus Magnetics | Magnetic disk medium with designed textured surfaces and controlled surface roughness and method of providing same |
| JP2010134977A (ja) * | 2008-12-02 | 2010-06-17 | Toshiba Storage Device Corp | 磁気記録媒体及び磁気記憶装置 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2517440A (en) * | 1947-04-02 | 1950-08-01 | Jaekson O Kleber | Double-track recording system |
| NL255882A (de) * | 1959-10-01 |
-
1964
- 1964-03-19 DE DE19641447154 patent/DE1447154A1/de active Pending
-
1965
- 1965-02-08 AT AT110065A patent/AT247021B/de active
- 1965-02-09 CH CH176065A patent/CH424299A/de unknown
- 1965-03-18 US US440888A patent/US3373997A/en not_active Expired - Lifetime
- 1965-03-19 GB GB11794/65A patent/GB1046718A/en not_active Expired
- 1965-03-19 BE BE661368D patent/BE661368A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AT247021B (de) | 1966-05-25 |
| GB1046718A (en) | 1966-10-26 |
| CH424299A (de) | 1966-11-15 |
| DE1447154A1 (de) | 1969-04-10 |
| US3373997A (en) | 1968-03-19 |