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Optical information digital storage method based on image parallel reading and writing

A digital storage, optical information technology, applied in information storage, recording information storage, recording/reproducing by optical methods, etc., can solve problems such as slow reading and writing speed, and achieve the effect of fast reading and writing speed

Active Publication Date: 2021-01-01
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional optical disc reading and writing is mainly carried out in the optical drive. The laser head of the optical drive is the execution part for reading and writing information from the optical disc. However, the traditional optical disc reading and writing is mainly performed by single-point scanning, and its reading and writing speed is relatively slow. In the field of big data storage , so it is urgent to invent a fast and efficient read and write optical storage technology

Method used

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  • Optical information digital storage method based on image parallel reading and writing
  • Optical information digital storage method based on image parallel reading and writing
  • Optical information digital storage method based on image parallel reading and writing

Examples

Experimental program
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Effect test

Embodiment 1

[0025] S1) Coating a layer of phase-change material thin film on the disc substrate by magnetron sputtering;

[0026] S2) put the disc 7 plated with phase change material on the motion platform 8, as figure 1 shown;

[0027] S3) write data: such as figure 1 For the schematic diagram of the device for writing data, the laser beam sequentially passes through the beam expander 3, the beam shaper 4, the DMD5, and the lens 6, and then irradiates the surface of the optical disc 7; to control;

[0028] S3.1) Import the data file into the encoder 10 through the computer 12 and convert it into a binary image of "0", "1" distribution, such as image 3 shown;

[0029] S3.2) Import the digital signals distributed by the above-mentioned binary images "0" and "1" into DMD5, and control the motion platform 8 at the same time, so that the phase-change material film of the optical disc 7 is exposed and spliced ​​to realize data recording, and the obtained optical disc 7 surface morphology...

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Abstract

The invention relates to an optical information digital storage method based on image type parallel reading and writing. Based on the optical information digital storage principle of image type parallel reading and writing, the data file is converted into binary image of '0' and '1' distribution by an encoder, and combined with a DMD digital micromirror reflector and a moving platform to quickly expose and stitch on a phase change material, so as to realize data recording. Combined with optical microscopic imaging technology, image processing and decoder are used to accurately restore the datafiles, and then the data can be read. The invention is simple and practical, and can realize fast read-write operation in the field of large data optical disc storage.

Description

technical field [0001] The invention relates to the technical field of large data storage, in particular to an image-based parallel read-write optical information digital storage method. Background technique [0002] With the rapid development of artificial intelligence, the Internet, and communication technologies, human society has rapidly entered the era of big data. It is estimated that by 2025, the data that needs to be stored in the world will reach 163ZB (Zebit), which is ten times that of the data generated in 2016 (16.1ZB). At present, data centers still rely on optical disc storage. Optical discs use laser beams to store information on the recording surface. According to the strength of laser beams and reflected light, information can be read and written. saved in the form. [0003] Traditional optical disc reading and writing is mainly carried out in the optical drive. The laser head of the optical drive is the execution part for reading and writing information ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/127G11B7/1372G11B7/0045
CPCG11B7/0045G11B7/127G11B7/1372
Inventor 魏劲松王正伟王阳魏涛张奎
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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