Pixel matching real-time compensation method for position multiplexing volume holographic data storage system

A data storage system and real-time compensation technology, applied in optical recording/reproduction/erasing methods, using optical interference patterns for recording/reproduction/erasing, instruments, etc. Use the volume holographic data storage system and other issues to achieve the effect of reducing the bit error rate

Inactive Publication Date: 2007-03-14
TSINGHUA UNIV
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Problems solved by technology

[0007] The main purpose of the present invention is to propose a real-time compensation method for volume holographic data storage systems suitable for position multiplexing to overcome the shortcomings of the existing technology, which has a large amount of repeated preparation work and cannot be applied to position multiplexing volume holographic data storage systems

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  • Pixel matching real-time compensation method for position multiplexing volume holographic data storage system
  • Pixel matching real-time compensation method for position multiplexing volume holographic data storage system
  • Pixel matching real-time compensation method for position multiplexing volume holographic data storage system

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[0023] The main optical path structure of the volume holographic data storage system adopted by the real-time compensation method proposed by the present invention is the same as that of the prior art, see FIG. 2 . Laser light is emitted by the laser 201 and is divided into an object light path and a reference light path by a beam splitter 202 . Among them, the first lens 203 of the reference light path, the vertical acousto-optic deflector 204, the second lens 205 of the reference light path, the third lens 206 of the reference light path, the fourth lens 207 of the reference light path, the fifth lens 208 of the reference light path, and the reference light path The optical path mirror 209, the horizontal acousto-optic deflector 210, the sixth lens 211 of the reference light path, the seventh lens 212 of the reference light path, the eighth lens 213 of the reference light path, and the ninth lens 214 of the reference light path form the reference light of the holographic stor...

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Abstract

The present invention relates to a pixel matching real time compensation method suitable for the position multiplex hologram data memory system, which belongs to the optical information storage and body hologram data storage technique fields. It is composed of original data sheet processing, data sheet storage, data sheet reading, number compensation and reduction, and so on. The invention can be used to the position multiplex hologram data memory system with high density and 1:1 pixel matching, which will decrease the bit error rate while reading the pixel effectively.

Description

technical field [0001] The invention belongs to the technical fields of optical information storage and volume holographic data storage, and in particular relates to a method for compensating and correcting data errors generated by position errors during data readout. Background technique [0002] With the advent of the information age, people's requirements for information storage, transmission and processing are increasing day by day. Optical information storage technology has become a new storage technology after magnetic storage technology due to its high density and long life, and has become the research object of all countries in the world. Optical volume holographic storage technology has become the most potential optical storage technology due to its advantages of high data redundancy, parallel data transmission, high storage density, fast addressing speed and related addressing functions. How to achieve a lower bit error rate in the readout process of the volume ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/0065G06K9/00
Inventor 何树荣鲍鹏
Owner TSINGHUA UNIV
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