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Method and device for adjusting tilt of recording medium

A technology for recording media and tilt control, which is applied in the direction of optical recording/reproduction, data recording, recording information storage, etc., which can solve problems such as scratches and achieve the effect of improving reproduction quality

Inactive Publication Date: 2011-04-13
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the tilt margin is narrow, it is impossible to obtain a stable servo, and scratches may appear due to the collision between the disk and the lens

Method used

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  • Method and device for adjusting tilt of recording medium
  • Method and device for adjusting tilt of recording medium
  • Method and device for adjusting tilt of recording medium

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Embodiment Construction

[0036] Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those of ordinary skill in the art concerned with the present invention can realize the present invention.

[0037] Hereinafter, a tilt control method according to an embodiment of the present invention will be described in detail. figure 1 is a flowchart illustrating a tilt control method of a recording medium according to an embodiment of the present invention. Hereinafter, a near-field recording (NFR) medium based on near-field optics will be described as a recording medium.

[0038] Accordingly, the tilt means a gradient occurring between a recording medium and a solid immersion lens (SIL) provided in an optical recording and reproducing apparatus using a near field.

[0039] First, after the recording medium is loaded in the recording and reproducing apparatus (S10), a gap error signal is detected in a state where the recording medium i...

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Abstract

According to the present invention, a method for adjusting the tilt of a recording medium comprises the steps of: installing the recording medium in a recording / reproducing apparatus; first compensating for the tilt in a state that the rotation of the recording medium is stopped; and second compensating tilt in a state that the recording medium is rotated.

Description

technical field [0001] The present invention relates to a recording medium tilt control method and apparatus, and more particularly, to a recording medium tilt control method and apparatus that can automatically compensate for a tilt error occurring between a recording medium and a lens of an optical recording device. Background technique [0002] As the demand for high-quality moving image processing increases due to rising tastes of customers, large-scale optical storage discs are required. In this regard, a high-density optical recording medium capable of recording and storing video data of high picture quality and audio data of high sound quality for a long period of time has been developed recently. [0003] Examples of optical recording media include Blu-ray discs and HD-DVDs. A DVD has a recording capacity of about 4.7 GB, and a Blu-ray Disc has a recording capacity of about 25 GB. [0004] Due to such high-density optical recording media, high-density optical recor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/095
CPCG11B7/0945G11B7/1387G11B7/082
Inventor 郭奉植徐丁教李晟熏孙都铉
Owner LG ELECTRONICS INC
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