公开(公告)号：US20100254246A1

公开(公告)日：2010-10-07

申请号：US12801489

申请日：2010-06-11

申请人： Go Mori ,  Hirohisa Yamada ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Hideharu Tajima ,  Shigemi Maeda ,  Yoshiteru Murakami

发明人： Go Mori ,  Hirohisa Yamada ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Hideharu Tajima ,  Shigemi Maeda ,  Yoshiteru Murakami

IPC分类号： G11B7/00

CPC分类号： G11B20/18 ,  G11B7/00736 ,  G11B7/24065 ,  G11B7/252 ,  G11B7/258 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/1012 ,  G11B20/10481 ,  G11B20/1217 ,  G11B20/1426 ,  G11B2220/2541 ,  G11B2220/2579

摘要： This invention allows super-resolution reproduction with which a better bER value is attainable, when information is recorded by a random pattern including a mark length not longer than a resolution limit, by use of a highly versatile signal decoding method.Information is recorded as marks and spaces coded by RLL(1,7) modulation, which each of the marks and spaces have one of a plurality of lengths, and 2T marks and 2T spaces of the marks and spaces being formed are shorter than 0.12 μm. An information recording layer (20) includes a reproduction film (21) and a reflective film (22) which are provided in this order from a side from which reproducing light is incident, which reproduction film is made of (i) zinc oxide, (ii) strontium titanate, (iii) titanium oxide, (iv) cerium oxide, or (v) a material including at least one of the (i) through (iv), and which reflective film is made of tantalum or titanium.

摘要翻译： 通过使用高度通用的信号解码方法，当通过包括不超过分辨率极限的标记长度的随机图案记录信息时，本发明允许可获得更好的bER值的超分辨率再现。 信息被记录为通过RLL（1,7）调制编码的标记和空格，其中每个标记和间隔具有多个长度中的一个，并且形成的标记和间隔的2T标记和2T间隔短于0.12μm 。 信息记录层（20）包括从再现光入射的一侧依次设置的再现膜（21）和反射膜（22），该再生膜由（i）氧化锌（ ii）钛酸锶，（iii）氧化钛，（iv）氧化铈，或（v）包含（i）至（iv）中的至少一种的材料，并且该反射膜由钽或钛制成。

公开(公告)号：US20100246345A1

公开(公告)日：2010-09-30

申请号：US12814133

申请日：2010-06-11

申请人： Masaki Yamamoto ,  Hirohisa Yamada ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Shigemi Maeda ,  Yoshiteru Murakami

发明人： Masaki Yamamoto ,  Hirohisa Yamada ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Shigemi Maeda ,  Yoshiteru Murakami

IPC分类号： G11B20/10

CPC分类号： G11B7/00 ,  G11B7/0037 ,  G11B7/005 ,  G11B7/08511 ,  G11B7/12 ,  G11B7/126 ,  G11B7/1263 ,  G11B7/24 ,  G11B7/24038 ,  G11B19/125 ,  G11B19/128 ,  G11B2007/0013

摘要： In an optical information storage medium reproduction apparatus (10) for reproducing an optical information storage medium including a plurality of information recording layers each including a recording mark having a length shorter than an optical system resolution limit, reproduction laser power for reading an information recording layer closest to a reproduction-laser-incident surface of the optical information storage medium is set to be lower than reproduction laser power for reading an information recording layer farthest from the reproduction-laser-incident surface but not lower than minimum reproduction laser power that satisfies a reproduction signal characteristic that the optical information storage medium reproduction apparatus (10) requires. With the arrangement, it is possible to prevent that the information recording layer closest to the reproduction-laser-incident surface is irradiated wrongly with reproduction laser having high reproduction laser power, thereby making it possible to obtain successful reproduction quality. That is, it is possible to realize the optical information storage medium reproduction apparatus (10) that can set optimum reproduction laser power and perform stable super resolution reproduction.

公开(公告)号：US20100188956A1

公开(公告)日：2010-07-29

申请号：US12662115

申请日：2010-03-31

申请人： Yoshihisa Adachi ,  Shigemi Maeda ,  Atsushi Etoh

发明人： Yoshihisa Adachi ,  Shigemi Maeda ,  Atsushi Etoh

IPC分类号： G11B7/0045

CPC分类号： G11B7/1267 ,  G11B7/00456

摘要： A recording parameter setting device includes a trial recording parameter setting section (23) and a reproduced signal quality judging section (26). The trial recording parameter setting section (23) inquires, in accordance with the recording information, a storage section (3) containing recording parameters used for controlling heat of recording marks, and sets a trial recording parameter, wherein (a) the recording parameters are used for controlling heat of at least rear edges, (b) the recording parameters are classified in accordance with recording mark lengths, and (c) recording parameters of a predetermined recording mark length or longer are classified into a same group. The reproduced signal quality judging section (26) judges whether or not a reproduced signal obtained by reproduction of the trial recording carried out in accordance with the trial recording parameter satisfies a predetermined reproduced signal quality. If no, the recording parameters of the predetermined recording mark length or longer are further classified into detailed groups and trial recording is carried out again. If the reproduced signal satisfies the predetermined reproduced signal quality, the reproduced signal quality judging section (26) sets the trial recording parameters as a recording parameter. This makes it possible to form a recording mark capable of surely providing a good reproduced signal quality while the number of recording parameters to be used is reduced.

公开(公告)号：US20100188954A1

公开(公告)日：2010-07-29

申请号：US12662112

申请日：2010-03-31

申请人： Yoshihisa Adachi ,  Shigemi Maeda ,  Atsushi Etoh

发明人： Yoshihisa Adachi ,  Shigemi Maeda ,  Atsushi Etoh

IPC分类号： G11B7/0045

CPC分类号： G11B7/1267 ,  G11B7/00456

摘要： A recording parameter setting device includes a trial recording parameter setting section (23) and a reproduced signal quality judging section (26). The trial recording parameter setting section (23) inquires, in accordance with the recording information, a storage section (3) containing recording parameters used for controlling heat of recording marks, and sets a trial recording parameter, wherein (a) the recording parameters are used for controlling heat of at least rear edges, (b) the recording parameters are classified in accordance with recording mark lengths, and (c) recording parameters of a predetermined recording mark length or longer are classified into a same group. The reproduced signal quality judging section (26) judges whether or not a reproduced signal obtained by reproduction of the trial recording carried out in accordance with the trial recording parameter satisfies a predetermined reproduced signal quality. If no, the recording parameters of the predetermined recording mark length or longer are further classified into detailed groups and trial recording is carried out again. If the reproduced signal satisfies the predetermined reproduced signal quality, the reproduced signal quality judging section (26) sets the trial recording parameters as a recording parameter. This makes it possible to form a recording mark capable of surely providing a good reproduced signal quality while the number of recording parameters to be used is reduced.

公开(公告)号：US20100188948A1

公开(公告)日：2010-07-29

申请号：US12662110

申请日：2010-03-31

申请人： Yoshihisa Adachi ,  Shigemi Maeda ,  Atsushi Etoh

发明人： Yoshihisa Adachi ,  Shigemi Maeda ,  Atsushi Etoh

IPC分类号： G11B20/18

CPC分类号： G11B7/1267 ,  G11B7/00456

摘要： A recording parameter setting device includes a trial recording parameter setting section (23) and a reproduced signal quality judging section (26). The trial recording parameter setting section (23) inquires, in accordance with the recording information, a storage section (3) containing recording parameters used for controlling heat of recording marks, and sets a trial recording parameter, wherein (a) the recording parameters are used for controlling heat of at least rear edges, (b) the recording parameters are classified in accordance with recording mark lengths, and (c) recording parameters of a predetermined recording mark length or longer are classified into a same group. The reproduced signal quality judging section (26) judges whether or not a reproduced signal obtained by reproduction of the trial recording carried out in accordance with the trial recording parameter satisfies a predetermined reproduced signal quality. If no, the recording parameters of the predetermined recording mark length or longer are further classified into detailed groups and trial recording is carried out again. If the reproduced signal satisfies the predetermined reproduced signal quality, the reproduced signal quality judging section (26) sets the trial recording parameters as a recording parameter. This makes it possible to form a recording mark capable of surely providing a good reproduced signal quality while the number of recording parameters to be used is reduced.

公开(公告)号：US20100165808A1

公开(公告)日：2010-07-01

申请号：US12644687

申请日：2009-12-22

申请人： Yasuhiro Harada ,  Shigemi Maeda ,  Hideharu Tajima ,  Tetsuya Hayashi ,  Atsushi Etoh

发明人： Yasuhiro Harada ,  Shigemi Maeda ,  Hideharu Tajima ,  Tetsuya Hayashi ,  Atsushi Etoh

IPC分类号： G11B20/00 ,  G11B7/24

CPC分类号： G11B27/034 ,  G11B7/00736 ,  G11B7/24038 ,  G11B2220/211 ,  G11B2220/2537

摘要： There are provided at least a first information storage area 20A and a second information storage area 40A. The first information storage area 20A contains, in advance, an OS or mpeg data. The second information storage area 40A is either write-once or rewriteable and available for writing OS update information or movie correction information. The configuration enables easy backup and restoration of software, content, and various information including update information for use by the software and content with reduced user time and workload.

摘要翻译： 至少提供了第一信息存储区域20A和第二信息存储区域40A。 第一信息存储区域20A预先包含OS或mpeg数据。 第二信息存储区域40A是一次写入或可重写的，并且可用于写入OS更新信息或电影校正信息。 该配置可轻松备份和恢复软件，内容和各种信息，包括软件和内容使用的更新信息，减少用户时间和工作量。

公开(公告)号：US20090073835A1

公开(公告)日：2009-03-19

申请号：US12226353

申请日：2007-03-27

申请人： Yoshihisa Adachi ,  Shigemi Maeda ,  Atsushi Etoh

发明人： Yoshihisa Adachi ,  Shigemi Maeda ,  Atsushi Etoh

IPC分类号： G11B7/00

CPC分类号： G11B7/1267 ,  G11B7/00456

摘要： A recording parameter setting device includes a trial recording parameter setting section (23) and a reproduced signal quality judging section (26). The trial recording parameter setting section (23) inquires, in accordance with the recording information, a storage section (3) containing recording parameters used for controlling heat of recording marks, and sets a trial recording parameter, wherein (a) the recording parameters are used for controlling heat of at least rear edges, (b) the recording parameters are classified in accordance with recording mark lengths, and (c) recording parameters of a predetermined recording mark length or longer are classified into a same group. The reproduced signal quality judging section (26) judges whether or not a reproduced signal obtained by reproduction of the trial recording carried out in accordance with the trial recording parameter satisfies a predetermined reproduced signal quality. If no, the recording parameters of the predetermined recording mark length or longer are further classified into detailed groups and trial recording is carried out again. If the reproduced signal satisfies the predetermined reproduced signal quality, the reproduced signal quality judging section (26) sets the trial recording parameters as a recording parameter. This makes it possible to form a recording mark capable of surely providing a good reproduced signal quality while the number of recording parameters to be used is reduced.

摘要翻译： 记录参数设置装置包括试用记录参数设置部分（23）和再现信号质量判断部分（26）。 试验记录参数设定部（23）根据记录信息查询包含用于控制记录标记的热量的记录参数的存储部（3），并设定试验记录参数，其中（a）记录参数为 用于控制至少后边缘的热量，（b）记录参数根据记录标记长度分类，并且（c）预定记录标记长度或更长的记录参数被分类成同一组。 再现信号质量判断部26判断通过再现根据试用记录参数进行的试验记录而获得的再现信号是否满足规定的再现信号质量。 如果否，则将预定记录标记长度或更长的记录参数进一步分类为详细组，并再次进行试验记录。 如果再现信号满足预定的再现信号质量，则再现信号质量判断部（26）将试验记录参数设置为记录参数。 这使得可以形成能够确保提供良好再现信号质量的记录标记，同时减少要使用的记录参数的数量。

公开(公告)号：US07339864B2

公开(公告)日：2008-03-04

申请号：US11003173

申请日：2004-12-02

申请人： Yoshihisa Adachi ,  Shigemi Maeda

发明人： Yoshihisa Adachi ,  Shigemi Maeda

IPC分类号： G11B7/00

CPC分类号： G11B20/10481 ,  G11B7/0062 ,  G11B7/1267 ,  G11B20/10009 ,  G11B27/36 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2562

摘要： A recording pulse condition for obtaining a reproduction result which fulfills predetermined signal quality is sought by performing testwrite and reproduction after uniformly changing predetermined recording pulse conditions corresponding to all mark lengths (S1, S2). If good result is not obtained, a recording pulse condition for obtaining a reproduction result which fulfills predetermined signal quality is sought by performing testwrite and reproduction after changing a predetermined recording pulse condition corresponding to at least one mark length (S4, S5). Then, a recording pulse condition is determined (S3). Thus provided are method and apparatus for efficiently setting such a recording condition that can reduce the influence of difference in characteristics of writable optical disks and difference in characteristics of optical recording and reproducing apparatuses, and to provide a recording and reproducing apparatus.

摘要翻译： 通过在对与所有标记长度相对应的预定记录脉冲条件进行均匀改变之后执行测试和再现来寻求用于获得满足预定信号质量的再现结果的记录脉冲条件（S 1，S 2）。 如果没有获得良好的结果，则通过在改变与至少一个标记长度相对应的预定记录脉冲条件之后执行测试和再现来寻求用于获得满足预定信号质量的再现结果的记录脉冲条件（S 4，S 5）。 然后，确定记录脉冲条件（S 3）。 这样提供了有效地设置这样的记录条件的方法和装置，其可以减少可写入光盘的特性差异的影响以及光学记录和再现装置的特性的差异，并提供一种记录和再现装置。

公开(公告)号：US06967917B1

公开(公告)日：2005-11-22

申请号：US09561856

申请日：2000-04-28

申请人： Tomiyuki Numata ,  Shigemi Maeda

发明人： Tomiyuki Numata ,  Shigemi Maeda

IPC分类号： G11B7/007 ,  G11B20/12 ,  G11B20/18 ,  G11B5/58

CPC分类号： G11B20/1883 ,  G11B7/007 ,  G11B2220/20

摘要： An optical disk using both grooves and lands as a recording track is provided with {circle around (1)} a data area for recording/reproducing data and {circle around (2)} DMAs (Data Management Areas) for managing a defective sector in the data area. The DMAs include four DMAs A–D all formed on the lands. The DMA B(D) is formed behind the ending sector of the DMA A(C). This arrangement realizes a DMA format having high resistance to defects and improving a processing rate. Consequently, highly reliable optical disk and optical disk apparatus can be provided.

摘要翻译： 使用凹槽和平台作为记录轨道的光盘设置有{围绕（1个用于记录/再现数据的数据区域和周围的圆圈（用于管理数据区域中的缺陷扇区的2个DMA（数据管理区域））。 DMA包括四个形成在地面上的DMA AD，DMA B（D）形成在DMA A（C）的结尾扇区之后，这样可以实现具有高抗缺陷性和提高处理速率的DMA格式。 可以提供高度可靠的光盘和光盘装置。

公开(公告)号：US20050193318A1

公开(公告)日：2005-09-01

申请号：US10625853

申请日：2003-07-22

申请人： Tetsuya Okumura ,  Shigemi Maeda

发明人： Tetsuya Okumura ,  Shigemi Maeda

IPC分类号： G11B20/10 ,  H03M13/03 ,  H04L25/03

CPC分类号： H04L25/03038 ,  G11B7/1263 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/10101 ,  G11B20/10481 ,  H04L2025/03617

摘要： The waveform equalizing device includes: an FIR filter for generating an equalized signal pattern y(i, n) on the basis of equalization of a waveform of the reproduced signal pattern u(i, n); a Viterbi decoding circuit for detecting a path metric difference s(n) between a correct path determined as a survivor path and an error path which fails to survive the correct path in Viterbi decoding based on the equalized signal pattern y(i, n); a target register for setting a target value ds for the path metric difference s(n); and a tap coefficients update circuit for adapting the equalization according to an error of the detected path metric difference from the target value. The tap coefficients update circuit adapts equalization properties so that the mean square error is minimized, thereby achieving a satisfactory result in lowering the error rate.

摘要翻译： 波形均衡装置包括：FIR滤波器，用于基于再现信号模式u（i，n）的波形的均衡生成均衡信号模式y（i，n）; 维特比解码电路，用于基于均衡的信号模式y（i，n）来检测确定为幸存路径的正确路径和在维特比解码中不能存活正确路径的错误路径之间的路径度量差s（n）; 用于设置路径度量差s（n）的目标值ds的目标寄存器; 以及抽头系数更新电路，用于根据检测到的路径度量差与目标值的误差来适配均衡。 抽头系数更新电路适应均衡特性，使得均方误差最小化，从而在降低误码率方面实现令人满意的结果。