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Estimation parameter adaptive adjustment method for optical storage devices

An optical storage and adaptable technology, applied in optical recording/reproduction, data recording, information storage, etc., can solve problems such as lack of real-time information, and achieve the effect of improving performance

Inactive Publication Date: 2006-10-25
MEDIATEK INC
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  • Description
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Problems solved by technology

However, corresponding to the adaptability between the optical storage device and the optical storage medium, these parameters actually involve complex mathematical operations
Therefore, during the operation of the optical storage device, there is not enough time for careful calculation of these parameters, and at the same time, there is not enough real-time information to make adaptive adjustments to further improve its performance

Method used

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  • Estimation parameter adaptive adjustment method for optical storage devices
  • Estimation parameter adaptive adjustment method for optical storage devices
  • Estimation parameter adaptive adjustment method for optical storage devices

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Embodiment Construction

[0017] The track of data recording on the known optical storage medium is a spiral track. According to the helical trajectory formula obtained by the basic calculus principle, the relationship between the data recording position L of the optical storage medium and the radius R of the optical storage medium (such as the outer diameter of an optical disc) is:

[0018] R = r i 2 + p × L π

[0019] Among them, r i is the radius of the starting point of the inner track (that is, where the L value is zero), p is the track pitch (that is, the radial distance between two adjacent positions of the spiral track), and π is the circumference ratio.

[0020] Taking a digital multi-purpose disc as an example, the data recording position of the digital multi-purpose dis...

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Abstract

A method for adaptive adjustment of estimated parameters of an optical storage device is used to determine an estimated parameter according to the current data recording position of an optical storage device to estimate a working frequency. The method provides a two-dimensional estimated parameter table, wherein the two-dimensional estimated parameter table has a plurality of estimated parameters corresponding to linear velocity and data recording position. The method further includes determining an estimated linear velocity; and determining an estimated parameter according to the estimated linear velocity, the current data recording position, and the two-dimensional estimated parameter table to estimate the operating frequency.

Description

technical field [0001] The invention relates to a method for adjusting estimated parameters of an optical storage device, in particular to a method for adaptively adjusting estimated parameters of an optical storage device. Background technique [0002] With the improvement of computing speed of computer systems and the rise of the Internet, users in various fields have an increasing demand for data storage. Due to the advantages of optical storage media (such as compact disc-CD, or digital versatile disc-DVD) with light weight, considerable storage capacity and low price, optical storage devices (such as optical drives / disc recorders) used to access the optical storage media -CD drive / CDburner, or Digital Versatile Disc Drive / Digital Versatile Disc Recorder-DVD drive / DVDburner) has become one of the standard equipment of the computer system. [0003] In response to the aforesaid requirements, there has even appeared an optical disc specification with a larger capacity, a l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/00G11B20/10
Inventor 沈永錤
Owner MEDIATEK INC
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