JPS6488903A - Method for reproducing magnetic signal - Google Patents
Method for reproducing magnetic signalInfo
- Publication number
- JPS6488903A JPS6488903A JP24515087A JP24515087A JPS6488903A JP S6488903 A JPS6488903 A JP S6488903A JP 24515087 A JP24515087 A JP 24515087A JP 24515087 A JP24515087 A JP 24515087A JP S6488903 A JPS6488903 A JP S6488903A
- Authority
- JP
- Japan
- Prior art keywords
- track
- super
- reproducing
- magnetic
- head
- 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 follow the bending of a super-narrow track and to reproduce a signal by providing a covering due to a superconducting substance on a magnetic medium surface, heating only a track to reproduced more than the critical temperature of the super-conductivity and reproducing with the head wider than a track width. CONSTITUTION:On a magnetic tape 1, a signal is recorded by a pattern like tracks 5, 5' and 5'', a reproducing head 7 is moved in an H direction and a signal is reproduced. The medium is completely magnetic-shielded under the critical temperature of a super-conducting film 3 and a reproducing magnetic flux is not obtained at the reproducing head 7. A laser beam 6 is traveled along the track 5, only the temperature of the part is raised more than the critical temperature, the diamagnetism condition of a super-conducting thin film 4 is released, and a magnetic shield is released. Thereafter, the reproducing head 7 having a head gap 8 is rectilinearly propagated in an H direction on a locus 9 and thus, the information of the bent track only can be obtained. The information of adjoining 5' and 5'' is not reproduced while it is shielded.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24515087A JPS6488903A (en) | 1987-09-29 | 1987-09-29 | Method for reproducing magnetic signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24515087A JPS6488903A (en) | 1987-09-29 | 1987-09-29 | Method for reproducing magnetic signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6488903A true JPS6488903A (en) | 1989-04-03 |
Family
ID=17129364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24515087A Pending JPS6488903A (en) | 1987-09-29 | 1987-09-29 | Method for reproducing magnetic signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6488903A (en) |
-
1987
- 1987-09-29 JP JP24515087A patent/JPS6488903A/en active Pending
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