公开(公告)号：KR20070106393A

公开(公告)日：2007-11-01

申请号：KR20070028586

申请日：2007-03-23

Applicant: IBM

Inventor： WINARSKI DANIEL JAMES ,  LIU HENRY Z ,  BATES ALLEN KEITH ,  KLEIN CRAIG ANTHONY ,  HAUSTEIN NILS

IPC: G11B20/10 ,  G11B20/18

CPC classification number: G11B20/1803 ,  G11B2020/1836 ,  G11B2020/1859 ,  G11B2220/235 ,  H03M13/1515 ,  H03M13/39

Abstract: A method for protecting redundancy of data recorded through multiple layers of a recording medium is provided to reduce a danger of inaccessibility or a loss of the data when the data on at least one layer is not decoded and to improve creditability of the recording medium and stability of the recorded data. A method for protecting redundancy of data recorded through multiple layers of a recording medium includes a step of receiving a data stream, a step of encoding each data bit to the predetermined number of expression bits, a step of recording a first expression bit at a first layer, recording a second expression bit at a second layer, and recording a remaining expression bit at the other layers of the recording medium, a step of receiving a request for decoding the data recorded from the recording medium, a step of reading back the plural expression bits from the recording medium, and a step of decoding the plural expression bits to an original data bit.

Abstract translation: 提供了一种用于保护通过记录介质的多层记录的数据的冗余的方法，以减少当至少一层上的数据未被解码并且提高记录介质的可信性和稳定性时数据的不可访问性或丢失的危险 的记录数据。 用于保护通过记录介质的多层记录的数据的冗余的方法包括接收数据流的步骤，将每个数据位编码为预定数量的表达式位的步骤，在第一处记录第一表达式位的步骤 在第二层记录第二表达式位，并在记录介质的其他层记录剩余的表达式位;接收对从记录介质记录的数据进行解码的请求的步骤，读回多个 来自记录介质的表达式位，以及将多个表达式位解码为原始数据位的步骤。

公开(公告)号：JP2008077824A

公开(公告)日：2008-04-03

申请号：JP2007237559

申请日：2007-09-13

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： DANIEL JAMES WINARSKI ,  ALAN KEITH BATES ,  LIU HENRY Z ,  HAUSTEIN NILS ,  CRAIG ANTHONY KLEIN

IPC: G11B20/10 ,  G03H1/04 ,  G11B7/0065

CPC classification number: G11B20/1426 ,  G11B7/0065 ,  G11B20/1833 ,  G11B2220/2504

Abstract: PROBLEM TO BE SOLVED: To provide a method for encoding run-length limited data into a 5×5 matrix to record the data in holographic media, an encoding system, a recording system, and a holographic recording drive thereof.
SOLUTION: In the method, the data is encoded to record it in the holographic media, wherein the method includes steps of: applying run-length limit encoding to 3-bytes data, where 4-bytes error correction code is attached, in 5×5 matrix information; and imparting the 5×5 matrix information to a spatial light modulator (SLM) as part of two-dimensional pixel matrix of the spatial light modulator, thereby recording holographic image in the holographic media.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种将游程限制数据编码为5×5矩阵的方法，以将数据记录在全息介质，编码系统，记录系统和全息记录驱动器中。 解决方案：在该方法中，数据被编码以将其记录在全息介质中，其中该方法包括以下步骤：将游程长度限制编码应用于附加4字节纠错码的3字节数据， 在5×5矩阵信息中; 并将5×5矩阵信息作为空间光调制器的二维像素矩阵的一部分赋予空间光调制器（SLM），从而将全息图像记录在全息介质中。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007299393A

公开(公告)日：2007-11-15

申请号：JP2007112749

申请日：2007-04-23

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： DANIEL JAMES WINARSKI ,  LIU HENRY Z ,  ALAN KEITH BATES ,  CRAIG ANTHONY KLEIN ,  HAUSTEIN NILS

IPC: G06F3/06

CPC classification number: G11B20/1803 ,  G11B2020/1836 ,  G11B2020/1859 ,  G11B2220/235 ,  H03M13/1515 ,  H03M13/39

Abstract: PROBLEM TO BE SOLVED: To improve reliability for multi-layer media in order to enhance the security of data.
SOLUTION: In the method for reading and writing data to a plurality of layers of a storage medium, a data stream U having a series of data bits is received and stored to a multi-layer rotating storage medium. Each data bit U(J) is encoded into X representation bits. A first representation bit B(1, J) is recorded onto a first layer of the storage medium, the second representation bit B(2, J) is recorded onto a second layer of the storage medium, etc. When a request to read the recorded data U from the storage medium is subsequently received, a plurality of the X representation bits are read back from the storage medium and are decoded into the original data bit U(J). In one embodiment, encoding may be performed with a convolution encoding algorithm and decoding with a PRML decoding algorithm. In another embodiment, Reed Solomon encoding/decoding may be employed.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提高多层媒体的可靠性，以提高数据的安全性。 解决方案：在用于将数据读取和写入存储介质的多个层的方法中，具有一系列数据位的数据流U被接收并存储到多层旋转存储介质。 每个数据位U（J）被编码为X表示位。 第一表示位B（1，J）被记录在存储介质的第一层上，第二表示位B（2，J）被记录在存储介质的第二层上等。当请求读取 随后接收来自存储介质的记录数据U，从存储介质读回多个X表示位，并将其解码为原始数据位U（J）。 在一个实施例中，可以使用卷积编码算法和用PRML解码算法解码来执行编码。 在另一个实施例中，可以采用里德所罗门编码/解码。 版权所有（C）2008，JPO＆INPIT