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High compactness mother disc RW machine control system

A control system and high-density technology, applied in the field of optical storage, to achieve the effect of ensuring high-precision work, high grating resolution, and stable work

Inactive Publication Date: 2005-10-26
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Under such extremely high precision requirements, the previous control system is no longer applicable

Method used

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  • High compactness mother disc RW machine control system
  • High compactness mother disc RW machine control system
  • High compactness mother disc RW machine control system

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Embodiment Construction

[0014] The present invention is a high-density master recorder control system, comprising a high-density master recorder (such as figure 2 shown), a control system (such as figure 1 As shown), the control system of the high-density master recorder is a DSP control system, which includes the main control DSP 1 for the motion trajectory of the computing system at runtime, that is, to ensure that the light beam of the recorder runs axially and radially relative to the disc. Trajectory synthesis of the Archimedes spiral motion equation of R=a*θ, spindle motion servo DSP 2 for controlling the axial rotation of the glass master disk, and radial motion servo DSP 3 for controlling the radial motion of the precision workbench. The main control DSP 1 coordinates the control timing and instructions of the spindle motion servo DSP 2 and the radial motion servo DSP 3 to ensure the overall stability and reliability of the system; the core part of the DSP control system is DSP, which is log...

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Abstract

A controller for high-density CD-RW device of mother disc is composed of DSP control system, drive system of executing mechanism and CD-RW unit of mother disc. Under the control of DSP system, the circular or linear raster read head of said CD-RW unit can real-time acquire the rotatino angle information of axial and radial motors to cooperate both motors for generating correct Archimedes' spiral, writing the traces. Its advantages are high control precision and stability.

Description

technical field [0001] The invention belongs to the technical field of optical storage, and in particular relates to a control system for a high-density master recorder applied to an ultra-high-speed, ultra-high-density optical storage system. Background technique [0002] Optical disk storage technology was developed in the 1970s, and it is an important information storage technology emerging after magnetic recording. In recent years, optical storage has not only made major breakthroughs in technology, but also achieved great success in commercial scale production. Optical digital data storage technology represented by optical discs is an indispensable part of high-density data storage required by the development of information technology and computer technology. The lack of key technology, it is estimated that by 2005, when the new network system and the third generation of multimedia appear, the external storage capacity of the computer should be at least 100GB, and the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/38G06F13/00G11B20/10G11B31/00
Inventor 李庆祥李晟李玉和訾艳阳
Owner TSINGHUA UNIV