JPS6488903A - Method for reproducing magnetic signal - Google Patents

Method for reproducing magnetic signal

Info

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
Application number
JP24515087A
Other languages
Japanese (ja)
Inventor
Kiyoshi Sasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP24515087A priority Critical patent/JPS6488903A/en
Publication of JPS6488903A publication Critical patent/JPS6488903A/en
Pending legal-status Critical Current

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.
JP24515087A 1987-09-29 1987-09-29 Method for reproducing magnetic signal Pending JPS6488903A (en)

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)

Similar Documents

Publication Publication Date Title
JPS57117106A (en) Optical magnetic recording and reproducing method
JPS576433A (en) Magnetic recorder and reproducer
JPS5661078A (en) Recording system for index information
JPS6488903A (en) Method for reproducing magnetic signal
YU24989A (en) Carrier of optical record
CA2048868A1 (en) Magnetic recording medium and information recording-reproduction method using the same
JPS541010A (en) Magnetic recorder-reproducer for electronic editing
JPS57145485A (en) Reproducer of video signal
JPS5534303A (en) Head positioning servo system in magnetic disc device
JPS5236011A (en) Magnetic recording and playback method
JPS641139A (en) Magneto-optical recording medium and recording and reproducing method
JPS5398803A (en) Optical recorder
JPS57103172A (en) Magnetic disk device
JPS53110812A (en) Magnetic recording/reproducing method for video signal
JPS57103112A (en) Magnetic disk device
JPS54105508A (en) Magnetic recorder-reproducer
JPS5778687A (en) Information recording system
JPS6462839A (en) Information recording medium and information operating method thereof
JPS57130206A (en) Magnetic recording system
JPS5668905A (en) Magnetic recording and reproducing device
JPS5674821A (en) Tracking control unit for magnetic tape device
JPS55163627A (en) Information recorder/reproducer
JPS5736424A (en) Magnetic head device
JPS6476562A (en) Information signal recorder
JPS5429618A (en) Magnetic recorder-reproducer