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Activation method for CD-ROM drive with self-balancing system

A technology of automatic balance and optical drive, which is applied in the configuration/installation of the head, the recording of information on the disk, data recording, etc., and can solve the problem of lengthening time

Inactive Publication Date: 2005-12-21
LITE ON TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the spindle motor speed control curve needs to be implemented so that the automatic balance system can exert the best shock absorption effect, it also relatively causes the defect that the activation process of the optical drive takes a long time, so for high-magnification optical drives, there is no reason for the spindle. Faster motor speed for faster activation

Method used

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  • Activation method for CD-ROM drive with self-balancing system
  • Activation method for CD-ROM drive with self-balancing system
  • Activation method for CD-ROM drive with self-balancing system

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Embodiment Construction

[0023] Please also see Figure 4 and Figure 5 , which are shown respectively as a flow chart of an optical drive activation method with an automatic balancing system and a waveform diagram of a spindle motor speed control curve executed by a timer interrupt subroutine. The present invention is aimed at the optical disc drive with an automatic balancing system. The method adopted is to use the principle of the main program to periodically call the interruption subroutine, and move the control curve of the spindle motor speed from the main program to the subroutine for execution. The following is the method for activating an optical drive with an automatic balance system of the present invention, and its execution includes the following steps.

[0024] Step 31: Insert the CD-ROM into the CD-ROM drive to start the activation process;

[0025] Step 32: Servo activation, that is, the spindle server rotates the spindle motor and cuts into closed-loop control to smoothly rotate th...

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Abstract

The invention relates to an activation method of an optical drive with an automatic balance system, which is applied to an optical drive with an automatic balance system (Auto-Balance System; ABS). The optical drive needs to execute a certain activation program when the optical disc is inserted. System parameter adjustment and spindle motor speed control curve (Spindle Motor RPM profile), so that the optical drive can read the data of the optical disc normally. The implementation of the spindle motor speed control curve is completed by the main program with a timing interrupt subroutine. In this way, in addition to reducing the amount of vibration caused by the high-speed rotation of the optical drive, the activation time of the optical drive can be effectively shortened, and the stability and accuracy of the rotation speed curve of the spindle motor can be greatly improved.

Description

technical field [0001] The invention relates to an activation method of an optical drive with an automatic balance system, in particular to a method for effectively shortening the time spent in the activation procedure of an optical drive with an automatic balance system. Background technique [0002] With the rapid development of optical information access media, today's optical drives are all developed with high-speed requirements. However, the higher the double speed of the optical drive, the faster the rotation speed of the spindle motor. For example, the rotation speed of the current spindle motor is as high as 11200RPM. The amount of longitudinal and lateral vibration generated at such a high rotational speed will become larger. In addition, the centrifugal deflection force generated by the unbalanced amount of the optical disc itself will also increase when it rotates, which will further affect the stability of the optical drive to read the optical disc. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/09G11B19/20G11B19/28
Inventor 孙育弘张志豪张世宏
Owner LITE ON TECH CORP