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Servo regulating method of CD-ROM

A technology of an optical disc device and an adjustment method, which is applied in optical recording/reproduction, head configuration/installation, instruments, etc., and can solve the problem that users cannot see video content, etc.

Inactive Publication Date: 2005-01-26
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the existing playback method as described above, there is a problem that as the still→jump→play operation is repeated, part of the playing video will be skipped, so that the user cannot see important video content.

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0025] Next, an embodiment of a servo adjustment method in an optical disc device of the present invention will be described with reference to the accompanying drawings.

[0026] figure 2 It is a configuration diagram of an optical disc device (DVD player) to which the servo adjustment method in the optical disc device of the present invention is applied. compared to figure 1 The structure of the above-mentioned structure adds the OSD71 controlled by the microprocessor 40, which is used to represent the guidance information about the playback error, and the servo adjustment operation of the microprocessor 70 is also different.

[0027] image 3 It is a flow chart of an embodiment of the servo adjustment method of the optical disc device of the present invention. The following will refer to figure 2 The composition diagram of the present invention image 3 The flow of the servo adjustment method will be described in detail.

[0028] process starts;

[0029] S10: First,...

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PUM

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Abstract

This invention is a servo regulation method in CD apparatus. It comprises the following steps: start the servo regulation process from the set initial position on the CD. Then find the initial value of servo through the above mentioned servo regulation process, and execute the general play operation to the above mentioned CD according to the servo value that setting at the initial time. And if there are some error during the play caused by the CD faults, it can execute servo regulation operation on a selective basis on the current position of the above mentioned CD If there are some error caused by the CD faults, this device can execute the servo regulation operation again according to the physical characteristics of the occurrence position of play error however the difference of the physical characteristics of the inner and outer cycle of CD. So user can see the entire video program normally during the play error.

Description

(1) Technical field [0001] The present invention relates to a servo adjustment method of an optical disc device, in particular to a servo adjustment method in an optical disc device that enables users to continuously enjoy playback images even when disc reading errors are caused by disc defects. (2) Background technology [0002] figure 1 It is a configuration diagram of a general optical disc device (disc player; DVD player). Common optical disc device comprises: optical pick-up 20, is used for reading record data on the optical disc 10; Rotating motor 21, is used to drive optical disc 10 to rotate; Slide motor 22, drives above-mentioned optical pick-up 20 to move; Radio frequency signal processor (R / F) 30, carry out aftermath shaping to the signal that above-mentioned optical pick-up 20 outputs and convert into binary signal and output; , the above-mentioned binary signal can be restored to the original data and output, but error detection and error correction are requir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/00G11B7/09
Inventor 郑仁树
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI