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Optical storage systems and method for realizing short gauge jumping rail through employing step motor

A stepping motor, storage system technology, applied in the field of track jumping operation, can solve the problem of sacrificing the performance of optical disc drive, low quality of optical signal, slowing down, etc.

Inactive Publication Date: 2007-08-29
MEDIATEK INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method of using the servo feedback control of the pulley 15, under the limitation of the slow dynamic characteristics of the pulley 15, will cause a decrease in system stability and a decrease in the quality of the optical signal
If want to solve the problem of above-mentioned conventional technology with shortening the maximum distance of short-gauge jump track, or slow down the speed when tackle 15 jumps track, obtain preferred stability, then can sacrifice the performance of optical disc drive, greatly reduce data storage. Take the efficiency

Method used

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  • Optical storage systems and method for realizing short gauge jumping rail through employing step motor
  • Optical storage systems and method for realizing short gauge jumping rail through employing step motor
  • Optical storage systems and method for realizing short gauge jumping rail through employing step motor

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Embodiment Construction

[0027] Firstly, the technical feature of the present invention is based on the use of a stepping motor, and uses the stepping motor to drive a pulley and an optical reading head to achieve the effect of pre-driving and precise positioning. Stepping motors are widely used in industry, and have been gradually popularized in the application of microcomputer peripheral equipment. Generally speaking, a stepping motor operates in a stepping manner. As long as a periodic signal (such as a square wave, a sine wave, a triangle wave or other periodic waves) is input, the stepping motor can determine the rotation angle according to the phase of the periodic signal. When there is no change in the phase of the periodic signal, the stepping motor maintains a static state, and when a continuous cycle is given, the stepping motor rotates continuously at a fixed angle, so that the stepping motor can be started instantaneously And rapid stop, and can achieve precise position control. Generally...

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Abstract

The invention provides a method for controlling stepped motor in a track jumping operation for short track width in an optical storage system, wherein the optical storage system also includes an optical reading head and an object lens group, the method comprises calculating the number of steps wherein the step motor rotation is one, moving the object lens group to a target trajectory, using the step motor to move the optical reading head to a destination location.

Description

technical field [0001] The invention provides a method for controlling a stepping motor in an optical storage system, particularly a method for controlling the stepping motor in the optical storage system to realize a track jump operation. Background technique [0002] In today's various optical storage systems, when users want to read data on an optical disc (Optical Disc) or want to write to the optical disc, they must use an optical pickup head (Pick -Up Head) to the target track (Target Track) on the disc for data reading or writing operations. In the following embodiments, an optical disc drive is taken as an example to illustrate the situation when the optical disc drive performs data access operations and the related transmission system. Please refer to FIG. 1 , which is a schematic diagram of a typical optical disc drive 10 . The optical disk drive 10 includes a spindle motor (spindle motor) 11 fixed in the optical disk drive, a carriage motor (Sled motor) 12, a sl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/085G11B7/12G11B21/02G11B7/00G11B7/005G11B7/1374
Inventor 黄佳凌
Owner MEDIATEK INC
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