公开(公告)号：EP1594130A1

公开(公告)日：2005-11-09

申请号：EP03705157.0

申请日：2003-02-14

申请人： FUJITSU LIMITED

发明人： ITAKURA, Akihiro

IPC分类号： G11B20/10 ,  G11B20/12

CPC分类号： G11B20/10009 ,  G11B20/10055 ,  G11B20/18 ,  G11B20/1809 ,  H03M13/27 ,  H03M13/2957 ,  H03M13/3916 ,  H03M13/3927

摘要： A data recording and reproducing device with a small circuit size is provided that utilizes an iterative decoding technique to realize high-speed data reproduction from a recording medium on which data is recorded at a high density. This data recording and reproducing device records a data block having input data encoded with convolutional codes on a recording medium, reproduces the data block through a partial response channel, and decodes the data block from the reproduced signal, utilizing an iterative decoding technique by which the data block is decoded through iterative decoding using likelihood information. This data recording and reproducing device includes a dividing unit that divides the data block encoded with the convolutional codes into data sub blocks; and a recording unit that records the data sub blocks at non-adjacent locations on the recording medium.

摘要翻译： 一种数据记录和再现设备具有小的电路规模提供没有利用到迭代解码技术来实现从在其上数据被记录在一个高密度记录介质的高速数据再现。 该数据记录和再现装置记录具有记录介质上用卷积码编码的输入数据的数据块，转载通过部分响应信道的数据块，并将数据块从再现信号进行解码，迭代解码技术的利用，通过该 数据块是使用似然信息通过迭代解码解码。 该数据记录和再现设备包括：分割单元做分割与所述卷积码为数据的子块所编码的数据块; 和记录单元没在记录介质上的非相邻位置记录该数据的子块。

公开(公告)号：EP1594130B1

公开(公告)日：2011-09-28

申请号：EP03705157.0

申请日：2003-02-14

申请人： FUJITSU LIMITED

发明人： ITAKURA, Akihiro

IPC分类号： G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  H03M13/29

CPC分类号： G11B20/10009 ,  G11B20/10055 ,  G11B20/18 ,  G11B20/1809 ,  H03M13/27 ,  H03M13/2957 ,  H03M13/3916 ,  H03M13/3927

摘要： A small circuit-size data recording/reproduction device using repeated decoding for realizing high-speed data reproduction from a recording medium containing data recorded with a high density. In order to achieve this object, the data recording/reproducing device using repeated decoding records a data block in which input data is encoded by a convolution symbol on a recording medium, reproduces it via a partial response channel, and decodes the data block from the reproduction signal by using repeated decoding using likelihood information. The device includes means for dividing the data block encoded by the convolution symbol into a plurality of data sub-blocks and means for recording the data sub-blocks at positions not adjacent to each other on the recording medium.