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Servo control method for optical disk apparatus

A technology of servo control and optical disc device, applied in the direction of head configuration/installation, etc., can solve problems such as the influence of RF storage quality, and achieve the effect of solving unstable state, stabilizing servo and improving quality

Inactive Publication Date: 2006-02-15
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0026] However, as mentioned above, if a buffer underrun occurs and the store is performed again after waiting until the buffered information to be stored is filled, trace jumps to the stored plane will continue to occur on the non-stored plane and have a significant impact on the RF storage quality. big impact

Method used

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  • Servo control method for optical disk apparatus
  • Servo control method for optical disk apparatus
  • Servo control method for optical disk apparatus

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Embodiment Construction

[0054] Hereinafter, specific embodiments of a servo control method for an optical disc device according to the present invention will be described with reference to the drawings.

[0055] The conversion of the servo signal on the storage plane and the non-storage plane is divided into: the conversion of the adjusted servo signal on the storage plane to the non-storage plane and the conversion of the adjusted servo signal on the non-storage plane to the storage plane. The two conversions are described below .

[0056] Here, the present invention relates to a servo control method by non-memory-oriented switching or storage-oriented switching of non-memory side. In order to realize this servo control method, it is necessary to perform a process of first detecting the direction of tracking, which is well known, so it will not be repeated here. However, it should be noted that the present invention is described on the assumption that through this detection process, it is already k...

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Abstract

The invention relates to a servo control method of CD device, which transforms the AGC (Automatic Gain Control) of non-storage and storage face retention to the relative AGC, wherein the AGC retention is a time-delay value of storage face RF signal. Therefore, the invention proceeds the conversion by the distinction of CD storage and non-storage to realize the reading rapidly, which improves the steady servo display and RF storage quality.

Description

(1) Technical field [0001] The present invention relates to an optical disc device, in particular to a servo control method for an optical disc device that stabilizes the servo signal and improves storage quality by converting the servo signal according to the storage surface and the non-stored surface of the optical disk. (2) Background technology [0002] Typically, CD and DVD discs test laser light on the storage surface, and store and play information. This kind of optical disc is very different from media dedicated to playing and being able to store repeatedly. The former mainly includes read-only memories such as CD-ROM and DVD ROM, and the latter can be divided into WORM ( Write Once Read Many), Rewritable, Ram and other types. [0003] This device for recording, storing and playing optical discs consists of an optical pickup for optically reading the optical disc, and a drive servo system for enabling the optical pickup to read and write arbitrary tracks. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/09
Inventor 李在基
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI