JPS5587388A - Magnetic memory device - Google Patents
Magnetic memory deviceInfo
- Publication number
- JPS5587388A JPS5587388A JP16267878A JP16267878A JPS5587388A JP S5587388 A JPS5587388 A JP S5587388A JP 16267878 A JP16267878 A JP 16267878A JP 16267878 A JP16267878 A JP 16267878A JP S5587388 A JPS5587388 A JP S5587388A
- Authority
- JP
- Japan
- Prior art keywords
- film
- plate
- oscillator
- information
- memory
- 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.)
- Pending
Links
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
PURPOSE:To realize the compact structure, high-speed operation and high reliability each for the memory device by using the semiconductor laser oscillator array of direct modulation type to the light source of the laser beam and at the same time covering the memory medium's film surface with the heat absorption layer. CONSTITUTION:Image formation optical system 17 is provided between memory plate 11 and semiconductor laser beam oscillator 10 of direct modulation type; input information S is supplied to the modulation mechanism within oscillator 10 via amplifier 12; and coil 13 which gives start to the environment magnetic field of the medium is attached to the back of plate 11. And substrate 14 of plate 11 contains heat absorption layer 15 and magnetic film 16 coated in the sandwich form. Accordingly, if the beam corresponding to the information irradiated to film 16, the irradiated area of film 16 is heated with increment of the temperature. Thus the heat reception efficiency is increased by layer 15 to perform the writing of the information.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16267878A JPS5587388A (en) | 1978-12-26 | 1978-12-26 | Magnetic memory device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16267878A JPS5587388A (en) | 1978-12-26 | 1978-12-26 | Magnetic memory device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5587388A true JPS5587388A (en) | 1980-07-02 |
Family
ID=15759204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16267878A Pending JPS5587388A (en) | 1978-12-26 | 1978-12-26 | Magnetic memory device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5587388A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5814306A (en) * | 1981-07-20 | 1983-01-27 | Omron Tateisi Electronics Co | Magnetic card device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49123748A (en) * | 1973-03-26 | 1974-11-27 | ||
JPS5116026A (en) * | 1974-04-04 | 1976-02-09 | Western Electric Co | |
JPS51134614A (en) * | 1975-05-19 | 1976-11-22 | Teac Co | Photomagnetic recorder |
-
1978
- 1978-12-26 JP JP16267878A patent/JPS5587388A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49123748A (en) * | 1973-03-26 | 1974-11-27 | ||
JPS5116026A (en) * | 1974-04-04 | 1976-02-09 | Western Electric Co | |
JPS51134614A (en) * | 1975-05-19 | 1976-11-22 | Teac Co | Photomagnetic recorder |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5814306A (en) * | 1981-07-20 | 1983-01-27 | Omron Tateisi Electronics Co | Magnetic card device |
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