Magnetic recorder/reproducer

Abstract

A magnetic recorder / reproducer comprising a measuring section for measuring the interval between a recording head (21) and a reproduction head (25), a detecting section for detecting the recording magnetization inverting unit position at the head of a data area (11), and a recording section for recording corresponding to the recording magnetization inverting unit. A magnetic recorder / reproducer capable of performing good recording on a pattern media by taking a recording timing from the recording magnetization inverting unit at the head of a data track is thereby provided.

Description

technical field [0001] The present invention relates to a magnetic recording and reproducing device used in magnetic recording. Background technique [0002] In recent years, the areal recording density of magnetic recording devices, especially hard disk drives, has been significantly increased. The increase in areal recording density is achieved by miniaturization of the recording magnetization inversion unit region. With the miniaturization of the recording magnetization inversion unit, in order to reduce the transition noise between the recording magnetization inversion units, the grain diameter of the magnetic recording layer is required to be finer than that of the recording magnetization inversion unit. [0003] However, the miniaturization of the particle size of the magnetic recording layer is equivalent to the reduction of the volume of the magnetic particles. With the reduction of the volume of the magnetic particles, the problem of thermal fluctuation becomes obvi...

AI Technical Summary

Problems solved by technology

[0015] In the above-mentioned conventional example, it is possible to detect the misalignment of the recording timing during the recording operation, but when the timing is misaligned, a re-recording operation is required.

[0016] In particular, in a magnetic recording and reproducing device such as a hard disk device, by setting a servo area and a data area on a magnetic recording medium, and reproducing the magnetization pattern provided in the servo area, the magnetic head is moved on a given track, and the data area is processed. recording or reproduction, however, in the above-mentioned conventional example, when starting writing to the data area after moving to a given track based on the information of the servo area, regarding the detection of the start position of the recording magnetization reversal unit to be recorded It is not disclosed that the recorded magnetization reversal unit that has just been written will have a timing mismatch and needs to be recorded again

[0017] There is a problem that, generally, a plurality of servo areas are provided on the circumference of a magnetic recording medium, so recording failure often occurs in the first sector of the data area.

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