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Magnetic reproducing unit

A technology of reproduction device and magnetic field, applied in re-recording, manufacture of record carrier, recording of information on magnetic disk, etc., can solve the problems of lack of tracking function, degradation of signal quality, omission of signal, etc.

Inactive Publication Date: 2006-06-07
FUJIFILM CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

That is, when the tight joint is not good, there will be an area where magnetic replication is not caused. When magnetic replication is not caused, the magnetic information copied to the slave medium will

Method used

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  • Magnetic reproducing unit
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Abstract

A kind of magnetic duplication device, it is characterized in that it is to have the clamper that will carry the master carrier of tape duplication information, the slave medium that accepts duplication relatively tightly joint and pack into the closed space, carry out vacuum suction to the closed space of this clamper, make The vacuum suction device for obtaining a tight bonding force between the slave medium and the master carrier, and the magnetic field application device for applying a magnetic field for replication, the effective area SV of the vacuum suction area of ​​the above-mentioned holder, and the contact area SD between the master carrier and the slave medium must satisfy the following Relationship, 1.2≤(SV/SD)≤16.0.

Description

[0001] This application is a divisional application of the invention with the filing date of June 19, 2002, the application number of 02122632.6, and the title of the invention "magnetic duplication device". technical field [0002] The present invention relates to a magnetic duplication device for magnetic duplication from a master carrier carrying information to a slave medium. technical background [0003] In magnetic recording media, so-called high-speed access media are generally desired to increase the amount of information, and at the same time, be able to record more information with a large capacity and at low cost, and more preferably, be able to read from desired parts in a short time. As an example of these, there are known hard disks and high-density floppy disks. In order to realize the large capacity, the magnetic head is accurately scanned in a narrow track width, and a signal is reproduced with a high S / N ratio. The so-called tracking servo technology has pl...

Claims

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Application Information

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IPC IPC(8): G11B5/86G11B5/012G11B5/84
Inventor 西川正一新妻一弘
Owner FUJIFILM CORP
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