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Error correction code and data format for high density optical disk

An error correction coding and data format technology, applied in the design field of optical disc data format, can solve the problems of no high-density optical disc, high data redundancy, unfavorable rational utilization of limited space, etc., to improve the ability to deal with sudden errors, The effect of overcoming large-scale noise and improving coding efficiency

Inactive Publication Date: 2008-11-26
HUAZHONG UNIV OF SCI & TECH +1
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Problems solved by technology

However, the strong error correction capability of this scheme is mainly due to the high data redundancy, which is not conducive to the rational use of limited space; moreover, the scheme is not very strong in dealing with burst errors, and has no characteristics for high-density optical discs.
Therefore, it cannot meet the requirements of high coding efficiency and high error correction capability (especially the ability to correct burst errors) of high-density discs.

Method used

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  • Error correction code and data format for high density optical disk
  • Error correction code and data format for high density optical disk
  • Error correction code and data format for high density optical disk

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Embodiment Construction

[0051] The embodiment of the present invention adopts image 3 —— Figure 10 given the expression. A further detailed description will be made below in conjunction with the accompanying drawings.

[0052] The error correction coding method and data format of the high-density optical disc of the embodiment of the present invention, the data format of its optical disc data storage, including data frame, audio and video data sector, audio and video data ECC block, control data ECC block, the corresponding control The data of the data ECC block is inserted into 8 audio and video data ECC blocks respectively in columns and then undergoes shifting and interleaving operations to form an ECC cluster.

[0053] 1. Data frame design

[0054] Each data frame is defined as (2048+4) bytes. Among them, 2048 bytes are audio and video data, and the other 4 bytes are error detection codes; the corresponding control information of this data frame is 16 bytes. Data frames and their control i...

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Abstract

This invention relates to an error correction code and data format for high density optical disk. Wherein, the code applies 4RS(n1,k1,2*t1) with small redundancy for unimportant data coding and 5RS(n2,k2,2*t2) with large redundancy for important data coding respectively (t1 G11B 20 / 18 8 8 2 2006 / 1 / 16 1838297 2006 / 9 / 27 100437805 2008 / 11 / 26 2008 / 11 / 26 2008 / 11 / 26 Huazhong University of Science & Technology Wuhan 430074 Hu Diqing Xie Changsheng Wu Jiajia zhu biwu 42102 The Patent Agency of Hubei Province Zhongnan Road, Wuchang, the City of Wuhan, Hubei Province (The Former Building 1 of the Wuhan Militery Command) 430071

Description

technical field [0001] The invention belongs to the technical field of optical disc storage, in particular relates to the design of the optical disc data format, and can be applied in high-density optical storage devices. Background technique [0002] At present, the capacity of traditional DVD discs can no longer meet the high-capacity requirements for watching high-definition video programs. Although Blu-ray discs have been produced abroad (the capacity of which can reach 25G on a single side and a single layer), its expensive cost makes it in the current market. Can not promote in the market, therefore, it is imperative to develop a kind of high-capacity disc based on red light technology. At the same time, because of the problem of DVD copyright patents, the manufacturers of DVD disc players in my country are under great threat to their survival, and the current developed EVD, FVD, HVD, etc. still use the DVD format because of their basic physical format, so this problem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B20/18
Inventor 胡迪青谢长生吴佳佳
Owner HUAZHONG UNIV OF SCI & TECH