Method for compensating finding track difference of pick device assembly

A compensation method and pickup technology, applied in the direction of optical recording/reproduction, instrument, head configuration/installation, etc., can solve the problem of deviation of the manufacturer and type of optical discs for storing data, etc.

Inactive Publication Date: 2003-11-05
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the various components that make up this actual pickup transport mechanism have toleran...

Method used

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  • Method for compensating finding track difference of pick device assembly
  • Method for compensating finding track difference of pick device assembly
  • Method for compensating finding track difference of pick device assembly

Examples

Experimental program
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Embodiment Construction

[0011] In the attached picture, figure 1 To briefly represent the block diagram of the data processing device that adopts the optical pickup of the present invention; figure 2 It is a schematic diagram representing the tracking error compensation method of the pickup assembly of the present invention; and image 3 It is a flow chart showing the tracking error compensation method of the pickup assembly of the present invention.

[0012] Such as figure 1 As shown in , in a data processing apparatus using a pickup, in order to read data stored in the optical disc 10, target position information for transferring the pickup assembly 21 is provided, and the target position information related to the track structure of the optical disc 10 is used information to calculate the number of target traces.

[0013] refer to figure 2 , the calculated target track number is input to the tracking control module 30 for transporting the pickup assembly 21 to read data, and the tracking con...

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Abstract

A method for compensating for pickup assembly tracking errors is disclosed. The method includes the steps of: calculating a target number of tracks by transporting a pickup assembly across the optical disc to read data stored in the optical disc; judging whether tracking errors must be compensated in a radially outward direction of the optical disc; The tracking error must be compensated in the inward direction, then the tracking error is compensated; the pickup assembly is transported in the radial inward direction of the optical disc, the address of the current position of the pickup assembly is read, and the current position of the pickup assembly is judged. a target position is consistent; if the current position of the pickup assembly is consistent with the target position, calculate the tracking error in the radially inward direction and calculate the error compensation value in the radially inward direction; and store the calculated error compensation value and use it for the next trace operation.

Description

technical field [0001] The present invention generally relates to methods for compensating for tracking errors of pick-up assemblies, and more particularly, to a method for compensating for tracking errors of pick-up assemblies in which an algorithm is used for the pickup assembly to convey the relative component Tolerance or disc deviation is detected, and the tracking error of the pickup assembly is compensated, thereby significantly reducing the tracking time of the data processing device using the pickup. Background technique [0002] Generally speaking, in a data processing device using an optical pickup such as a compact disc (CD) drive, a digital versatile disc (DVD) drive, a rewritable compact disc (CD-RW) drive, etc., such a data processing device will The seek time required for its pickup assembly to be transported to the desired location on the disc and to read data from the disc is governed by the performance of the pickup transport mechanism used to transport th...

Claims

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Application Information

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IPC IPC(8): G11B7/085G11B7/09
CPCG11B7/08505G11B7/085
Inventor 郑一权
Owner SAMSUNG ELECTRO MECHANICS CO LTD
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