公开(公告)号：US09634493B2

公开(公告)日：2017-04-25

申请号：US13562974

申请日：2012-07-31

申请人： Satoshi Shimokawa ,  Akiyoshi Uchida ,  Masakazu Taguchi

发明人： Satoshi Shimokawa ,  Akiyoshi Uchida ,  Masakazu Taguchi

IPC分类号： H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J5/00 ,  H01L41/08 ,  H02M7/48 ,  G06G7/18

CPC分类号： H02J5/005 ,  G06G7/18 ,  H01L41/08 ,  H02J7/025 ,  H02J50/12 ,  H02J50/80 ,  H02M7/48

摘要： In a resonant frequency control method in a magnetic field resonant coupling type power transmission system transmitting an electric power from a power transmitting coil to a power receiving coil using magnetic field resonance, a high-speed, accurate and real-time adjustment of the resonant frequency of a coil is realized. The phase of a voltage supplied to a power transmitting coil and the phase of a current that flows in the power transmitting coil or a power receiving coil is detected and the resonant frequency of the power transmitting coil or the power receiving coil is varied such that the phase difference between them becomes a target value.

公开(公告)号：US20100027155A1

公开(公告)日：2010-02-04

申请号：US12479334

申请日：2009-06-05

申请人： Masakazu Taguchi

发明人： Masakazu Taguchi

IPC分类号： G11B21/02

CPC分类号： G11B5/6064 ,  G11B5/6005

摘要： A magnetic disk apparatus includes a magnetic disk, and a magnetic head facing the magnetic disk. The magnetic disk apparatus also includes a thermal deforming member and a thermal deformation controller. The thermal deforming member is provided in the magnetic head for thermally deforming the magnetic head to change the projecting amount of the magnetic head toward the magnetic disk. The thermal deformation controller controls the driving power supplied to the thermal deforming member, so that the falling characteristic of the driving power in transition from an on-state to an off-state is gentler in inclination than the rising characteristic of the driving power in transition from an off-state to an on-state.

摘要翻译： 磁盘装置包括磁盘和面向磁盘的磁头。 磁盘装置还包括热变形构件和热变形控制器。 热变形构件设置在磁头中，用于使磁头热变形以改变磁头朝向磁盘的突出量。 热变形控制器控制提供给热变形构件的驱动功率，使得从导通状态转换到截止状态的驱动功率的下降特性比转变中的驱动功率的上升特性更为缓慢 从非州到州。

公开(公告)号：US07559005B2

公开(公告)日：2009-07-07

申请号：US11335086

申请日：2006-01-19

申请人： Masakazu Taguchi ,  Michio Matsuura

发明人： Masakazu Taguchi ,  Michio Matsuura

IPC分类号： G11C29/00

CPC分类号： G11B20/1833 ,  G06F11/1092

摘要： A method is provided for storing data by distributing the data into plural storage units that are accessible independently of one another. The method includes the steps of dividing data to be stored into plural data blocks, generating parity data corresponding to the data blocks, distributing the plural data blocks and the parity data into the storage units to let the storage units store the same, responding to a situation where any of the storage units becomes inaccessible, reconstructing data stored in the storage unit that has become inaccessible before the situation occurs based on data stored in the remaining storage units, dividing the reconstructed data into plural reconstructed data blocks, generating parity data corresponding to the reconstructed data blocks, and distributing the plural reconstructed data blocks and the parity data corresponding thereto into accessible storage units to let the accessible storage units store the same.

摘要翻译： 提供了一种通过将数据分配到彼此独立地可访问的多个存储单元来存储数据的方法。 该方法包括以下步骤：将要存储的数据划分成多个数据块，产生对应于数据块的奇偶校验数据，将多个数据块和奇偶校验数据分配到存储单元中，以使存储单元存储它们，响应于 根据存储在剩余存储单元中的数据，重建存储在存储单元中的存储单元中不可访问的数据的情况，将重构数据划分成多个重构数据块，生成对应于 重建的数据块，并将多个重建的数据块和与其对应的奇偶校验数据分配到可访问的存储单元中，以使可访问的存储单元存储它们。

公开(公告)号：US20070192653A1

公开(公告)日：2007-08-16

申请号：US11783872

申请日：2007-04-12

申请人： Toru Fujiwara ,  Masakazu Taguchi

发明人： Toru Fujiwara ,  Masakazu Taguchi

IPC分类号： G06F11/00

CPC分类号： G11B20/1816 ,  G11B7/005 ,  G11B20/10055 ,  G11B20/10287 ,  G11B20/10296 ,  G11B2020/1859 ,  G11B2020/1863 ,  H03M13/3961 ,  H03M13/41 ,  H03M13/6331

摘要： A defect detection device, apparatus, and method for detecting a defect of data recorded on a recording medium. The defect detection device includes a waveform state detection part generating information representing a state of a waveform of a reproduced signal from the recording medium based on soft decision results obtained in a process of reproducing the data in accordance with a maximum likelihood decoding algorithm corresponding to a partial response. The defect detection device includes a defect determination part determining the defect of the recorded data based on the information generated in the waveform state detection part.

摘要翻译： 一种用于检测记录在记录介质上的数据缺陷的缺陷检测装置，装置和方法。 所述缺陷检测装置包括：波形状态检测部，根据在与所述记录媒体对应的最大似然解码算法的再生处理中得到的软判定结果，生成表示来自所述记录媒体的再现信号的波形的信息的信息 部分反应。 缺陷检测装置包括基于在波形状态检测部中生成的信息来确定记录数据的缺陷的缺陷确定部。

公开(公告)号：US20070125151A1

公开(公告)日：2007-06-07

申请号：US11386384

申请日：2006-03-22

申请人： Masakazu Taguchi ,  Michio Matsuura

发明人： Masakazu Taguchi ,  Michio Matsuura

IPC分类号： G01M17/04

CPC分类号： G11B33/08 ,  G11B5/5582 ,  G11B33/12

摘要： A data storage device is provided that is suitable for use under the environment where mechanical shock is frequently applied. The data storage device includes plural storage units as closed structures each of which houses a storage medium therein, the storage medium being capable of moving relative to a head for access, an external force detection portion for outputting signals corresponding to external forces applied to the storage units in plural directions, and a controller for controlling the storage units. The storage units are arranged in such a manner that the storage units are different from one another in a direction of relative movement between the storage medium and the head, and the controller selectively makes one or more of the storage units perform an access operation in accordance with the signal outputted from the external force detection portion.

摘要翻译： 提供一种适用于经常应用机械冲击的环境下使用的数据存储装置。 数据存储装置包括作为封闭结构的多个存储单元，每个存储单元在其中容纳存储介质，存储介质能够相对于用于存取的磁头移动;外力检测部分，用于输出与施加到存储器的外力相对应的信号 多个方向的单元，以及用于控制存储单元的控制器。 存储单元被布置成使得存储单元在存储介质和头之间的相对移动的方向上彼此不同，并且控制器选择性地使一个或多个存储单元根据存储介质执行访问操作 其中从外力检测部分输出的信号。

公开(公告)号：US07206147B2

公开(公告)日：2007-04-17

申请号：US11120256

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： G11B5/09

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：US20060215527A1

公开(公告)日：2006-09-28

申请号：US11190589

申请日：2005-07-27

申请人： Akiyoshi Uchida ,  Toshikazu Kanaoka ,  Masakazu Taguchi

发明人： Akiyoshi Uchida ,  Toshikazu Kanaoka ,  Masakazu Taguchi

IPC分类号： G11B7/00

CPC分类号： G11B7/00736 ,  G11B7/0065 ,  G11B7/00781 ,  G11B7/24044

摘要： A holographic recording medium is a medium which records and reproduces data by irradiation with an information beam and a reference beam. This medium includes a user region for recording user data; and a calibration region for storing calibration data for calibrating an element which determines a recording and reproducing characteristic of a recording and reproducing apparatus for recording and reproducing data on/from the recording medium. The calibration data stored in the calibration region includes pattern information for measuring the element determining the recording and reproducing characteristic of the recording and reproducing apparatus.

摘要翻译： 全息记录介质是通过用信息光束和参考光束照射来记录和再现数据的介质。 该介质包括用于记录用户数据的用户区域; 以及校准区域，用于存储用于校准元件的校准数据，该元件确定用于在/从记录介质上记录和再现数据的记录和再现设备的记录和再现特性。 存储在校准区域中的校准数据包括用于测量确定记录和再现设备的记录和再现特性的元件的模式信息。

公开(公告)号：US06982942B2

公开(公告)日：2006-01-03

申请号：US10096280

申请日：2002-03-12

申请人： Akiyoshi Uchida ,  Masakazu Taguchi

发明人： Akiyoshi Uchida ,  Masakazu Taguchi

IPC分类号： G11B7/005

CPC分类号： G11B20/10009 ,  G11B11/10506 ,  G11B20/1426 ,  H03M13/31

摘要： In a data recording apparatus, values of parity bits to be additionally provided every one predetermined length block in data obtained by demodulating the original data are determined so as to satisfy a part of or an entire the predetermined run length limitation rule in ranges of a current predetermined length block, the plurality of parity bits, and a next predetermined length block that is positioned next to the current block. The parity bits having the values are additionally provided to the current block.

摘要翻译： 在数据记录装置中，确定通过解调原始数据而获得的数据中每隔一个预定长度块附加地提供的奇偶校验位的值，以便在电流范围内满足预定行程长度限制规则的一部分或全部 预定长度块，多个奇偶校验位以及位于当前块旁边的下一个预定长度块。 具有这些值的奇偶校验位被附加地提供给当前块。

公开(公告)号：US06977879B1

公开(公告)日：2005-12-20

申请号：US09656692

申请日：2000-09-07

申请人： Kenichi Hamada ,  Satoshi Furuta ,  Masakazu Taguchi

发明人： Kenichi Hamada ,  Satoshi Furuta ,  Masakazu Taguchi

IPC分类号： G11B20/14 ,  G11B20/10 ,  H04L7/027 ,  G11B20/18

CPC分类号： G11B20/10

摘要： A clock adjustment apparatus for adjusting a phase of a clock signal based on a phase error thereof is provided in a data reproduction system which samples a readout signal from a recording medium in synchronism with the clock signal, and reproduces data in accordance with a Viterbi algorithm by using sampled values of the readout signal. The recording medium is recorded with the data modulated in accordance with a recording rule of a predetermined partial response characteristic. The clock adjustment apparatus includes a phase error calculation circuit which calculates the phase error of the clock signal based on the sampled values of the readout signal.

摘要翻译： 在与时钟信号同步地对来自记录介质的读出信号进行采样的数据再现系统中提供了一种用于根据其相位误差调整时钟信号的相位的时钟调整装置，并根据维特比算法再现数据 通过使用读出信号的采样值。 按照预定的部分响应特性的记录规则调制的数据记录记录介质。 时钟调整装置包括相位误差计算电路，该电路根据读出信号的采样值来计算时钟信号的相位误差。

公开(公告)号：US06914737B2

公开(公告)日：2005-07-05

申请号：US10681642

申请日：2003-10-08

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 ,  G11B5/09

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.