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Oblique regulating method of magnetic disc player

A tilt adjustment, player technology, applied to the configuration/installation of the head, supporting the direction of the head, etc., which can solve the problems of limitation, influence on playback characteristics, reduction of optical reading movement characteristics, etc.

Inactive Publication Date: 2003-12-24
DIGITAL MULTIMEDIA TECH
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  • Summary
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  • Description
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AI Technical Summary

Problems solved by technology

[0007] However, in this case, when the guide rod is to be adjusted up and down, although the optical reading element is tilted while adjusting the tilt, if fine adjustment is required in the optical reading drive source , produces overload according to the inclination of the guide rod, degrades the optical reading movement characteristics, and therefore, affects the playback characteristics
Also, manual adjustments are limited when making fine adjustments

Method used

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  • Oblique regulating method of magnetic disc player
  • Oblique regulating method of magnetic disc player
  • Oblique regulating method of magnetic disc player

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Embodiment Construction

[0016] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] figure 1 It is a sequence diagram showing the first embodiment of the tilt adjustment method of the disk player according to the present invention.

[0018] as figure 1 The method for adjusting the inclination of the disk player of the present invention according to the first embodiment, the steps include: judging whether there is an inserted disk (S10), judging whether there is an inserted disk 1 on the turntable 10; judging the focus error output time (S20), after inserting In the disk presence / absence judgment step (S10), if the disk is inserted into the turntable 10, the optical pick-up element 20 for irradiating the light beam on the recording surface of the disk 1 is raised and then lowered for a certain period of time, and the focus is judged when the output rises. The 1st focus error output time (FET1) of the error and the 2nd ...

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Abstract

A method for regulating the inclination of magnetic disc player includes judging if a magnetic disc has been inserted on turnable, using an optical reader element to emit a light beam onto the recordsurface of magnetic disc, lifting the optical reader element up and then lowering it, judging the first focusing error time (FET1) on raising and the second focusing error time (FET2) on lowering, substracting FET1 from FET2 to obtain focusing error time difference (FET), comparing FFT with a reference FET (FETrf) to judge the curved state of the record surface, and regulating inclination if FET is not equal to FETrf by rotating said turnable.

Description

technical field [0001] The invention relates to a method for adjusting the inclination of a disk player, in particular to a method for adjusting the inclination of a disk player whose inclination can be adjusted when the recording surface of the disk rotating at a high speed is placed on a turntable in a curved state. Background technique [0002] The disk player is driven by the loading mechanism, and the disk such as the digital disk (Compact Disk) or the digital video disk (Digital Video Disk) is loaded on the turntable, clamped by the clamping unit, and reciprocates in the radial direction of the disk by one side While moving, the drive of the optical pick-up unit (optical pick-up unit) that radiates on the recording pit (pit) of the magnetic disk performs playback or recording of disk information. [0003] In order to replay or record the information on the disk, the surface of the disk must be flat because the light beam emitted in the optical reading element is requir...

Claims

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Application Information

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IPC IPC(8): G11B7/09G11B21/20
Inventor 朴洪淳金钟云高铭晙
Owner DIGITAL MULTIMEDIA TECH
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