Two-dimensional information code writing and quick reading method and quick reading device for optical disc

A two-dimensional information and two-dimensional encoding technology, applied in the optical field, can solve the problems of inability to effectively read data, inability to achieve fast and high-density data reading, etc., to improve information storage capacity, high storage density and The effect of storage capacity and scalability

Pending Publication Date: 2021-12-24
SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current super-resolution optical storage technology scheme, the method of photopolymerization cannot realize the effective reading of data, while the data storage method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Two-dimensional information code writing and quick reading method and quick reading device for optical disc
  • Two-dimensional information code writing and quick reading method and quick reading device for optical disc
  • Two-dimensional information code writing and quick reading method and quick reading device for optical disc

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0045] Method for Writing Two-Dimensional Information Codes and Fast Reading of Optical Discs in the First Embodiment

[0046] Such as figure 1 Shown is a two-dimensional information encoding and writing method for an optical disc according to the first embodiment of the present invention. Taking the two-dimensional information encoding and writing method of a 3×3 dot matrix as an example, it includes the following steps:

[0047] Step S1: carry out 2 i×j base encoding to obtain two-dimensional coded information, each bit of the two-dimensional coded information corresponds to a set of recording points 104 of an i×j lattice, that is, corresponds to i×j bit information;

[0048] Step S2: In the storage sites 103 sequentially arranged along the channel 102 of the optical disc, two-dimensional coded information is written in the storage sites 103 in the form of recording points 104 of i×j dot matrix by nano-information writing method Wherein, the size of the storage location 10...

no. 2 example

[0074] The second embodiment is a fast reading device for two-dimensionally stored information of an optical disc based on speckle field

[0075] Such as Figure 5A As shown, it is a fast reading device for two-dimensionally stored information of an optical disc based on speckle field, which is used to read the recording points 104 in i×j dot matrix in each storage point 103 through the nano information writing method The two-dimensional encoded information written in the form of two-dimensional encoded information, the storage sites 103 are arranged sequentially along the channel 102 of the optical disc 100, the change of the optical property of the storage material at the storage site 103 is the reflected optical signal after the material is irradiated by the reading beam change (in this embodiment, the change of the optical property is the change of the intensity of the fluorescent signal of the material after being irradiated by the reading beam). The fast reading device ...

no. 3 example

[0082] The third embodiment is a fast reading device for two-dimensionally stored information of an optical disc based on speckle field

[0083] Such as Figure 5B As shown, a fast reading device for two-dimensionally stored information of an optical disc based on a speckle field is shown, which is used to read recording points in i×j dot matrix in each storage point 103 through the nano-information writing method The two-dimensional encoded information written in the form of 104, the storage sites 103 are arranged sequentially along the channel 102 of the optical disc 100, the change of the optical property of the storage material at the storage site 103 is the reflected optical signal after the material is irradiated by the reading beam (In this embodiment, the change of the optical properties of the storage material is the change of the scattering characteristics of the material to the read beam and the change of the absorbance of the material to the read beam, through the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a two-dimensional information code writing and quick reading method for an optical disc. The method comprises the following steps that: 2i * j system coding is performed on information to be stored to obtain two-dimensional coded information; two-dimensional coding information is written in each storage site in the form of i * j dot matrix recording points through a nanometer information writing method in the storage sites which are sequentially arranged along the channel; and a storage site is irradiated to form a reading light beam spot equivalent to the storage site in size, a reflected light signal is obtained, the reflected light signal is processed and collected based on an optical correlation imaging method, a target signal is inversely solved by adopting an optical reconstruction algorithm, and rapid reading is achieved. The invention further provides a quick reading device. According to the method, the information storage amount is increased through multi-dimensional information writing of the to-be-stored information; and meanwhile, an optical correlation imaging method is adopted for each storage site as a reading method of the optical disc, so that rapid information reading of the optical disc with high storage density can be realized.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a two-dimensional information coding writing and fast reading method and a fast reading device of an optical disc. Background technique [0002] With the development of technologies such as gene sequencing and brain activity reading, not only a large amount of data is generated, but also higher requirements are put forward for how to store the data effectively, stably and accurately. Based on the above-mentioned background, the optical disk storage technology has well adapted to the requirements of the times due to its advantages of energy saving, long storage life, good safety and easy processing. As for optical disc technology, the limitation of storage capacity seriously hinders the development of optical disc technology. [0003] In order to increase the capacity of the optical disc, the traditional technical route is to reduce the size of the recording spot. With the succ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G11B7/0045G11B7/007G11B7/12
CPCG11B7/00456G11B7/007G11B7/12
Inventor 王中阳张力李文文肖康葛畅孙静
Owner SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap