公开(公告)号：US06986093B2

公开(公告)日：2006-01-10

申请号：US10060789

申请日：2002-01-30

申请人： Akihiro Itakura

发明人： Akihiro Itakura

IPC分类号： H03M13/00

CPC分类号： H03M13/2975 ,  G11B20/10 ,  G11B20/18 ,  H03M13/2957 ,  H03M13/35 ,  H03M13/6331 ,  H03M13/6343 ,  H03M13/6362 ,  H03M13/658

摘要： An apparatus for reproducing data has decoded data generated based on a reproduction signal from a recording medium in accordance with an iterative decoding process corresponding to a turbo coding method. The apparatus also has a value of a channel value constant, which is used in an iterative decoding process, controlled when the decoded data is generated in accordance with the iterative decoding process.

摘要翻译： 根据与turbo编码方法对应的迭代解码处理，用于再现数据的装置具有基于来自记录介质的再现信号生成的解码数据。 该装置还具有在迭代解码处理中使用的通道值常数值，当根据迭代解码处理生成解码数据时进行控制。

公开(公告)号：US20050195923A1

公开(公告)日：2005-09-08

申请号：US11116681

申请日：2005-04-28

申请人： Masakazu Taguchi ,  Akihiro Itakura ,  Akiyoshi Uchida

发明人： Masakazu Taguchi ,  Akihiro Itakura ,  Akiyoshi Uchida

IPC分类号： G11B5/008 ,  G11B5/012 ,  G11B20/10 ,  G11B20/18 ,  H03M13/39 ,  H03M13/41 ,  H04L27/06

CPC分类号： G11B20/10101 ,  G11B5/00813 ,  G11B5/012 ,  G11B20/10009 ,  G11B20/1866 ,  H03M13/39

摘要： In an apparatus for recording and regenerating data, a pass metric is calculated based on a likelihood converted from a previous calculation result iteratively until all pass metrics of the same data recorded many times on a recording medium are calculated, and then data recorded on the recording medium is decoded.

摘要翻译： 在用于记录和重新生成数据的装置中，基于从先前计算结果转换的似然率计算通过度量，直到计算记录在记录介质上多次记录的相同数据的所有通过度量，然后记录在记录上的数据 介质被解码。

公开(公告)号：US06891689B2

公开(公告)日：2005-05-10

申请号：US09818766

申请日：2001-03-27

申请人： Masakazu Taguchi ,  Akihiro Itakura ,  Akiyoshi Uchida

发明人： Masakazu Taguchi ,  Akihiro Itakura ,  Akiyoshi Uchida

IPC分类号： H04N5/92 ,  G11B5/008 ,  G11B5/012 ,  G11B7/00 ,  G11B20/10 ,  G11B20/14 ,  G11B5/09 ,  G11B27/36

CPC分类号： G11B20/10037 ,  G11B5/00813 ,  G11B5/012 ,  G11B7/00 ,  G11B20/10009

摘要： In an apparatus for reading recorded data, the apparatus, a read signal is sampled from recorded data of a recording medium by synchronizing with a first clock signal. A sample value obtained by the sampling part is stored and also the sample value from the first storing part is retrieved by synchronizing a second clock signal different from the first clock signal and maximum likelihood data is detected by processing the sample value in accordance with a predetermined algorithm. The recorded data is read based on the detected data.

摘要翻译： 在用于读取记录数据的装置中，通过与第一时钟信号同步，从记录介质的记录数据中对读取信号进行采样。 存储由采样部获得的采样值，并且通过使与第一时钟信号不同的第二时钟信号同步来检索来自第一存储部分的采样值，并且通过根据预定的处理来检测采样值来检测最大似然数据 算法。 基于检测到的数据读取所记录的数据。

公开(公告)号：US20050068853A1

公开(公告)日：2005-03-31

申请号：US10972815

申请日：2004-10-25

申请人： Akihiro Itakura

发明人： Akihiro Itakura

IPC分类号： G11B11/00 ,  G11B11/105

CPC分类号： G11B11/10595 ,  G11B11/10506 ,  G11B11/10508 ,  G11B11/10528 ,  G11B11/1053 ,  G11B11/10584 ,  G11B20/10009 ,  G11B20/10037

摘要： A magneto-optical recording/reproducing apparatus and a magneto-optical recording/reproducing method are disclosed for preventing a variation of an edge position of a mark reproduced from a recording medium. An exemplary magneto-optical recording/reproducing apparatus for recording/reproducing an information mark on/from a magneto-optical recording medium includes a detection unit for determining the length of a first recording information mark and an adjustment unit for adjusting the intensity of a recording magnetic field for recording a second information mark depending on the length of the first information mark recorded immediately before the second recording information mark.

摘要翻译： 公开了一种用于防止从记录介质再现的标记的边缘位置的变化的磁光记录/再现装置和磁光记录/再现方法。 用于在磁光记录介质上记录/再生信息标记的示例性磁光记录/再现装置包括：用于确定第一记录信息标记的长度的检测单元和用于调节记录强度的调节单元 磁场，用于根据紧接在第二记录信息标记之前记录的第一信息标记的长度记录第二信息标记。

公开(公告)号：US06667841B2

公开(公告)日：2003-12-23

申请号：US09790087

申请日：2001-02-21

申请人： Masakazu Taguchi ,  Akihiro Itakura ,  Akiyoshi Uchida

发明人： Masakazu Taguchi ,  Akihiro Itakura ,  Akiyoshi Uchida

IPC分类号： G11B509

CPC分类号： G11B20/10101 ,  G11B5/00813 ,  G11B5/012 ,  G11B20/10009 ,  G11B20/1866 ,  H03M13/39

摘要： In an apparatus for recording and regenerating data, a pass metric is calculated based on a likelihood converted from a previous calculation result iteratively until all pass metrics of the same data recorded many times on a recording medium are calculated, and then data recorded on the recording medium is decoded.

公开(公告)号：US5978332A

公开(公告)日：1999-11-02

申请号：US949121

申请日：1997-10-10

申请人： Akihiro Itakura ,  Michio Matsuura

发明人： Akihiro Itakura ,  Michio Matsuura

IPC分类号： G11B7/24 ,  G11B7/007 ,  G11B7/09 ,  G11B7/095 ,  G11B11/105 ,  G11B7/00 ,  G11B3/70

CPC分类号： B82Y10/00 ,  G11B7/0938 ,  G11B7/0956 ,  G11B11/10576 ,  G11B7/00745

摘要： A tilt detector and tilt detecting method of detecting a tilt amount by using a tracking error signal, for example, a push-pull signal, obtained from the difference in quantities of light received by a photo detector halved in a direction vertical to the track direction, and correcting an error of tilt amount detected by the imbalance of the light beam on the mirror surface.An optical recording medium for emphasizing the asymmetricity to the track center of the tracking error signal by changing a spatial frequency in the direction vertical to the track at a specified portion to the spatial frequency in the direction vertical to the track at another portion.An optical disk drive and tilt correcting method including the steps of calculating an off-track amount which is proportional to a tilt amount detected by a tilt detector, giving the off-track calculated by the off-track calculating means to an optical recording medium by an actuator, and maintaining the center of the light beam intensity at the track center.

摘要翻译： 一种倾斜检测器和倾斜检测方法，其通过使用由沿着垂直于轨道方向的方向上减去的光检测器接收的光的差异获得的跟踪误差信号（例如，推挽信号）来检测倾斜量 并且校正由镜子表面上的光束的不平衡所检测到的倾斜量的误差。 一种用于通过将垂直于指定部分的轨道的方向上的空间频率在垂直于另一部分的轨道的方向上改变为空间频率来强调跟踪误差信号的轨道中心的不对称性的光学记录介质。 一种光盘驱动器和倾斜校正方法，包括以下步骤：计算与由倾斜检测器检测到的倾斜量成比例的偏离磁道量，由偏离轨迹计算装置计算出的偏离轨迹通过 致动器，并将光束强度的中心维持在轨道中心。

公开(公告)号：US5825742A

公开(公告)日：1998-10-20

申请号：US798643

申请日：1997-02-11

申请人： Tsutomu Tanaka ,  Tomonori Ikeya ,  Akihiro Itakura

发明人： Tsutomu Tanaka ,  Tomonori Ikeya ,  Akihiro Itakura

IPC分类号： G11B11/10 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/006 ,  G11B7/125 ,  G11B11/105

CPC分类号： G11B7/126 ,  G11B11/10506 ,  G11B11/1053 ,  G11B7/0045 ,  G11B7/0062

摘要： An information recording method of an optical recording medium capable of reducing the edge shift and jitter by irradiating the optical recording medium with a light beam by pulse emission in five power values, when forming recording marks and spaces of small dimensions.

摘要翻译： 一种光学记录介质的信息记录方法，其能够在形成小尺寸的记录标记和间隔时，通过以五个功率值的脉冲发射用光束照射光学记录介质来减少边缘偏移和抖动。

公开(公告)号：US09157965B2

公开(公告)日：2015-10-13

申请号：US13671862

申请日：2012-11-08

申请人： Toru Ezawa ,  Akihiro Itakura

发明人： Toru Ezawa ,  Akihiro Itakura

IPC分类号： G01R31/36 ,  B60L11/18 ,  H01M10/48 ,  H01M10/42

CPC分类号： G01R31/3627 ,  B60L3/12 ,  B60L11/1851 ,  B60L11/1857 ,  B60L11/1864 ,  B60L2240/545 ,  G01R31/3651 ,  G01R31/3658 ,  G01R31/3675 ,  G01R31/3679 ,  H01M10/486 ,  H01M2010/4278 ,  Y02T10/7005 ,  Y02T10/7061

摘要： There is provided a storage battery deterioration diagnosis system, including: a cell-list creator configured to select diagnosis target cells from among a plurality of cells in a storage battery system, and create a list of the diagnosis target cells; a cell deterioration diagnoser configured to obtain degradation degrees of the diagnosis target cells; a temperature distribution estimator configured to estimate degradation degrees of non-target cells other than the diagnosis target cells, based on a distance between the non-target cell and the diagnosis target cells, and obtain temperature distribution of a whole of the plurality of cells based on degradation degrees of the diagnosis target cells and the degradation degrees of the non-target cells; and a cell-list updater configured to update the list of the diagnosis target cells based on the temperature distribution.

摘要翻译： 提供了一种蓄电池劣化诊断系统，包括：单元列表创建器，被配置为从蓄电池系统中的多个单元中选择诊断目标单元，并创建诊断对象单元的列表; 细胞恶化诊断器，被配置为获得诊断对象细胞的降解度; 温度分布估计器，被配置为基于所述非靶细胞与所述诊断对象细胞之间的距离来估计除所述诊断靶细胞以外的非靶细胞的退化程度，并且基于所述多个细胞的整体获得温度分布 诊断靶细胞的降解程度和非靶细胞的降解程度; 以及细胞列表更新器，其被配置为基于所述温度分布来更新所述诊断对象细胞的列表。

公开(公告)号：US08102615B2

公开(公告)日：2012-01-24

申请号：US12409636

申请日：2009-03-24

申请人： Akihiro Itakura ,  Toshikazu Kanaoka

发明人： Akihiro Itakura ,  Toshikazu Kanaoka

IPC分类号： G11B5/09

CPC分类号： G11B5/59688 ,  G11B5/5526

摘要： A data storage apparatus includes: a medium for storing data having synchronization marks and data blocks, the synchronization mark and the data block being allocated alternately in the circumference direction of the medium; a head writing data into or reading out data from the medium; and a processor for executing a process including: reading out synchronization marks, measuring time for the head to pass through each of the data blocks based on signals read out from each of the synchronization marks in the circumference direction, generating write/read clock for each of the data blocks, which is continuously changing in speed, by calculating difference in time for the head to pass through the each one of the data blocks and its adjacent one of the blocks on the basis of the time measured, and writing data into or reading out data from the medium in synchronization with the write/read clock.

摘要翻译： 数据存储装置包括：用于存储具有同步标记和数据块的数据的介质，所述同步标记和所述数据块在所述介质的圆周方向上交替地分配; 将数据写入或从介质读出数据的头; 以及用于执行处理的处理器，包括：读出同步标记，根据从圆周方向上的每个同步标记读出的信号测量头部经过每个数据块的时间，为每个数据块生成写入/读取时钟 通过根据测量的时间计算头部经过数据块和其相邻块之一的每一个数据块的时间差，并将数据写入或 与写/读时钟同步从介质读出数据。

公开(公告)号：US20090244760A1

公开(公告)日：2009-10-01

申请号：US12413516

申请日：2009-03-28

申请人： Toshikazu KANAOKA ,  Akihiro Itakura

发明人： Toshikazu KANAOKA ,  Akihiro Itakura

IPC分类号： G11B5/09

CPC分类号： G11B5/59627 ,  G11B5/5965 ,  G11B20/10222 ,  G11B20/1217 ,  G11B20/1403 ,  G11B2020/1242 ,  G11B2020/1245 ,  G11B2020/1281 ,  G11B2020/1484 ,  G11B2220/2516

摘要： A magnetic storage control apparatus for controlling a magnetic storage apparatus that uses a recording medium having a plurality of reference signals on its track and having a data area between the reference signals. The apparatus includes: a measurement section that reproduces the reference signal in a predetermined track of the recording medium and measures, for each data area, the time for a head to scan the data area to obtain a measurement value; a calculation section that calculates a setting value concerning the frequency of a recording clock used in data recording based on the measurement values of a plurality of data areas obtained by the measurement section; and a generation section that generates the recording clock based on the measurement values obtained by the measurement section and setting value calculated by the calculation section.

摘要翻译： 一种磁存储控制装置，用于控制在其轨道上使用具有多个参考信号的记录介质并且具有参考信号之间的数据区的磁存储装置。 该装置包括：测量部分，其再现记录介质的预定轨道中的参考信号，并且针对每个数据区域测量头扫描数据区域以获得测量值的时间; 计算部，其基于由所述测量部获得的多个数据区域的测量值，计算与在数据记录中使用的记录时钟的频率有关的设定值; 以及生成部，其基于由测量部获得的测量值和由计算部计算出的设定值来生成记录时钟。