公开(公告)号：US08300350B2

公开(公告)日：2012-10-30

申请号：US13170137

申请日：2011-06-27

申请人： Takayuki Kawabe

发明人： Takayuki Kawabe

IPC分类号： G11B5/596 ,  G11B5/03 ,  G11B27/36

CPC分类号： G11B5/09 ,  G11B5/59627 ,  G11B19/045 ,  G11B20/1258 ,  G11B2220/2516

摘要： According to one embodiment, a magnetic disk drive comprises a write count memory, a read offset setting module and a controller. The write count memory stores a write count for each track or for each zone on a disk. The read offset setting module sets, in accordance with a write count for an adjacent track to a target track or for a zone to which the adjacent track belongs, an offset from a predetermined position on the target track in a read position in which a head is to be positioned when the head is positioned on the target track for data read. The write count is stored in the write count memory. The controller positions the head in a position shifted from the predetermined position by the set offset.

摘要翻译： 根据一个实施例，磁盘驱动器包括写入计数存储器，读取偏移设置模块和控制器。 写计数存储器存储每个磁道或磁盘上每个区域的写入计数。 读取偏移设定模块根据与目标轨道相邻的轨迹或相邻轨道所属的区域的写入计数，在读取位置中设定从目标轨道上的预定位置的偏移量，其中头部 当头部位于目标轨道上以进行数据读取时将被定位。 写入计数存储在写入计数存储器中。 控制器将磁头定位在从预定位置偏移设定偏移的位置。

公开(公告)号：US08098448B2

公开(公告)日：2012-01-17

申请号：US12639926

申请日：2009-12-16

申请人： Yoshihiko Maeda ,  Masaomi Ikeda ,  Nobuhiro Kuwamura ,  Toshihiko Tsunokawa ,  Akira Osaki

发明人： Yoshihiko Maeda ,  Masaomi Ikeda ,  Nobuhiro Kuwamura ,  Toshihiko Tsunokawa ,  Akira Osaki

IPC分类号： G11B5/09

CPC分类号： G11B20/1258 ,  G11B2020/1242 ,  G11B2020/1282 ,  G11B2020/1292 ,  G11B2220/2516

摘要： A method for dividing a data area on a disk into a plurality of concentric zones and determining a format for each zone so that data tracks in the zone have the same number of data sectors. The method includes dividing a data area into a plurality of zones with provisional boundaries. The method also includes determining a linear recording density for a selected zone. The method further includes selecting the number of data sectors per data track corresponding to the determined linear recording density from specified values. Moreover, the method includes resetting a boundary of the zone at a new boundary shifted from the provisional boundary according to a selected value.

摘要翻译： 一种用于将盘上的数据区划分成多个同心区并且确定每个区的格式的方法，使得区中的数据轨迹具有相同数量的数据扇区。 该方法包括将数据区域划分成具有临时边界的多个区域。 该方法还包括确定所选区域的线性记录密度。 该方法还包括从指定值中选择对应于所确定的线性记录密度的每个数据轨道的数据扇区数。 此外，该方法包括根据所选择的值从临时边界移位的新边界复位区域的边界。

公开(公告)号：US08009376B2

公开(公告)日：2011-08-30

申请号：US12283731

申请日：2008-09-12

申请人： Takahiro Saito ,  Kazunari Tsuchimoto ,  Atsushi Kanamaru

发明人： Takahiro Saito ,  Kazunari Tsuchimoto ,  Atsushi Kanamaru

IPC分类号： G11B5/09

CPC分类号： G11B20/1258 ,  G11B5/59644 ,  G11B20/22 ,  G11B2020/10916 ,  G11B2020/1238 ,  G11B2020/1244 ,  G11B2020/1292 ,  G11B2020/1294 ,  G11B2220/2516

摘要： Embodiments of the present invention help to improve the capacity and the performance of a disk drive device. According to one embodiment, a data track pitch is set to each recording surface. The recording surfaces are divided into bands. A hard disk drive (HDD) sequentially moves a head to an adjacent data track in a band and performs a head switch at the band end in its data accessing. On a recording surface, the number of data tracks in each band is variable; and each band is constituted by different number of data tracks as necessary. The number of data tracks in each band is set so that the radial position of the band end comes close to the radial position of the corresponding band end on another recording surface. Accordingly, even if the recording surfaces have different variation rates of the data track pitch in the radial direction, increase in process time due to head switches can be suppressed.

摘要翻译： 本发明的实施例有助于提高磁盘驱动装置的容量和性能。 根据一个实施例，将数据轨道间距设置到每个记录表面。 记录表面被分成带。 硬盘驱动器（HDD）顺序地将磁头移动到频带中的相邻数据磁道，并在其数据访问中在频带端执行磁头切换。 在记录表面上，每个频带中的数据轨迹数是可变的; 并且每个频带由必要的不同数量的数据轨道构成。 每个带中的数据轨道的数量被设置为使得带端的径向位置接近另一个记录表面上相应带端的径向位置。 因此，即使记录面在径向方向上具有不同的数据磁道间距的变化率，也可以抑制由磁头开关引起的处理时间的增加。

公开(公告)号：US07957370B2

公开(公告)日：2011-06-07

申请号：US12126188

申请日：2008-05-23

申请人： Richard T. Behrens ,  Kent D. Anderson ,  Alan J. Armstrong ,  Trent Dudley ,  Bill R. Foland ,  Neal Glover ,  Larry D. King

发明人： Richard T. Behrens ,  Kent D. Anderson ,  Alan J. Armstrong ,  Trent Dudley ,  Bill R. Foland ,  Neal Glover ,  Larry D. King

IPC分类号： H04L12/50

CPC分类号： G11B20/10055 ,  G11B5/012 ,  G11B5/09 ,  G11B20/10 ,  G11B20/10009 ,  G11B20/1258 ,  G11B20/1403 ,  G11B20/1426 ,  G11B20/18 ,  G11B27/3027 ,  G11B2020/1476 ,  H03M13/31

摘要： A synchronous read channel having a single chip integrated circuit digital portion which provides digital gain control, timing recovery, equalization, digital peak detection, sequence detection, RLL(1,7) encoding and decoding, error-tolerant synchronization and channel quality measurement is disclosed. The integrated circuit accommodates both center sampling and side sampling, and has a high degree of programmability of various pulse shaping and recovery parameters and the ability to provide decoded data using sequence detection or digital peak detection. These characteristics, together with the error-tolerant sync mark detection and the ability to recover data when the sync mark is obliterated, allow a wide variety of retry and recovery strategies to maximize the possibility of data recovery. Various embodiments, including an embodiment incorporating the analog functions as well as the primary digital functions of the read channel in a single integrated circuit, and preferred embodiments utilizing a reduced complexity, programmable modified Viterbi detector supporting a broad class of partial response channels are disclosed.

摘要翻译： 公开了具有提供数字增益控制，定时恢复，均衡，数字峰值检测，序列检测，RLL（1,7）编码和解码，容错同步和信道质量测量的单芯片集成电路数字部分的同步读通道 。 集成电路既适用于中心采样和侧采样，又具有各种脉冲整形和恢复参数的高度可编程性，以及使用序列检测或数字峰值检测提供解码数据的能力。 这些特征以及容错同步标记检测以及当同步标记被消除时恢复数据的能力允许各种各样的重试和恢复策略以最大化数据恢复的可能性。 公开了包括在单个集成电路中并入模拟功能以及读取通道的主要数字功能的实施例的各种实施例，以及利用支持大类部分响应通道的降低复杂度的可编程修改维特比检测器的优选实施例。

公开(公告)号：US20110085259A1

公开(公告)日：2011-04-14

申请号：US12639926

申请日：2009-12-16

申请人： Yoshihiko MAEDA ,  Masaomi Ikeda ,  Nobuhiro Kuwamura ,  Toshihiko Tsunokawa ,  Akira Osaki

发明人： Yoshihiko MAEDA ,  Masaomi Ikeda ,  Nobuhiro Kuwamura ,  Toshihiko Tsunokawa ,  Akira Osaki

IPC分类号： G11B5/09

CPC分类号： G11B20/1258 ,  G11B2020/1242 ,  G11B2020/1282 ,  G11B2020/1292 ,  G11B2220/2516

摘要： A method for dividing a data area on a disk into a plurality of concentric zones and determining a format for each zone so that data tracks in the zone have the same number of data sectors. The method includes dividing a data area into a plurality of zones with provisional boundaries. The method also includes determining a linear recording density for a selected zone. The method further includes selecting the number of data sectors per data track corresponding to the determined linear recording density from specified values. Moreover, the method includes resetting a boundary of the zone at a new boundary shifted from the provisional boundary according to a selected value.

摘要翻译： 一种用于将盘上的数据区划分成多个同心区并且确定每个区的格式的方法，使得区中的数据轨迹具有相同数量的数据扇区。 该方法包括将数据区域划分成具有临时边界的多个区域。 该方法还包括确定所选区域的线性记录密度。 该方法还包括从指定值中选择对应于所确定的线性记录密度的每个数据轨道的数据扇区数。 此外，该方法包括根据所选择的值从临时边界移位的新边界复位区域的边界。

公开(公告)号：US20110080820A1

公开(公告)日：2011-04-07

申请号：US12894248

申请日：2010-09-30

申请人： Jae-chul SHIM ,  Hae-Jung LEE

发明人： Jae-chul SHIM ,  Hae-Jung LEE

IPC分类号： G11B27/36

CPC分类号： G11B5/09 ,  G11B20/10009 ,  G11B20/1037 ,  G11B20/10481 ,  G11B20/1258 ,  G11B2020/1242 ,  G11B2020/1289 ,  G11B2020/1292 ,  G11B2220/2516

摘要： A data storage device determines a zone layout based on a quality evaluation factor. The zone layout is designed such that a measurement value of the quality evaluation factor for each track in each zone is within a range between a predetermined upper limit and a predetermined lower limit and a maximum amount of variation of the measurement value within each zone is substantially equal to a difference between the upper limit and the lower limit.

摘要翻译： 数据存储设备基于质量评估因子确定区域布局。 区域布局被设计成使得每个区域中的每个轨道的质量评估因子的测量值在预定上限和预定下限之间的范围内，并且每个区域内的测量值的最大变化量基本上 等于上限和下限之间的差值。

公开(公告)号：US07911894B2

公开(公告)日：2011-03-22

申请号：US11302166

申请日：2005-12-14

申请人： Jung-wan Ko

发明人： Jung-wan Ko

IPC分类号： G11B20/12

CPC分类号： G11B20/18 ,  G11B20/1217 ,  G11B20/1258 ,  G11B20/1883 ,  G11B2020/1893 ,  G11B2220/20

摘要： A recording medium having a spare area for defect management and the management information of the spare area, a spare area allocation method, and a defect management method. When a primary spare area is allocated for slipping replacement and linear replacement upon initialization, and a remaining portion of the primary spare area after slipping replacement and allocated for linear replacement after initialization are insufficient, a supplementary spare area is allocated.

摘要翻译： 具有用于缺陷管理的备用区域和备用区域的管理信息的记录介质，备用区域分配方法和缺陷管理方法。 当主备用区域被分配用于在初始化时滑动替换和线性替换，并且在滑动替换之后的主备用区域的剩余部分在初始化之后被分配用于线性替换不足时，分配辅助备用区域。

公开(公告)号：US07881162B2

公开(公告)日：2011-02-01

申请号：US12195767

申请日：2008-08-21

申请人： Yoshihiro Kaneko

发明人： Yoshihiro Kaneko

IPC分类号： G11B7/004

CPC分类号： G11B20/1258 ,  G11B2020/1244 ,  G11B2020/1289 ,  G11B2020/1295 ,  G11B2220/2562 ,  G11B2220/61

摘要： According to one embodiment, an information processing apparatus, has a reading unit which, if a transfer delay address is found, stores data in the transfer delay address, in a memory, and stores data in a range from the transfer delay address to an additional address located at an outer periphery in a certain distance and which, if the address to be read on the optical disc is present in the transfer delay address, reads data corresponding to the address to be read as stored in the memory, and a control unit which, if the address to be read on the optical disc is present in the additional address, reads the data corresponding to the address to be read as stored in the memory, by the reading unit, and increases a rotation rate of the optical disc up to a predetermined number of revolutions.

摘要翻译： 根据一个实施例，信息处理装置具有读取单元，如果发现传送延迟地址，则将数据存储在传送延迟地址中，并存储在存储器中，并将数据存储在从传送延迟地址到附加的地址范围内 地址位于一定距离的外围，并且如果要在光盘上读取的地址存在于传送延迟地址中，则读取存储在存储器中的与要读取的地址对应的数据，以及控制单元 如果要在光盘上读取的地址存在于附加地址中，则通过读取单元读取存储在存储器中的要读取的地址的数据，并且增加光盘的旋转速率 到预定转数。

公开(公告)号：US20100232280A1

公开(公告)日：2010-09-16

申请号：US12784444

申请日：2010-05-20

申请人： ALLEN KEITH BATES ,  NILS HAUSTEIN ,  CRAIG ANTHONY KLEIN ,  DANIEL JAMES WINARSKI

发明人： ALLEN KEITH BATES ,  NILS HAUSTEIN ,  CRAIG ANTHONY KLEIN ,  DANIEL JAMES WINARSKI

IPC分类号： G11B7/00

CPC分类号： G11C7/005 ,  G11B20/1258 ,  G11B2020/1242 ,  G11B2220/2504 ,  G11C13/042

摘要： A method to provide data storage services using one or more holographic data storage media disposed in a holographic data storage system operated by a data storage services provider, wherein the holographic data storage system comprises a light source, a spatial light modulator, and a plurality of holographic data storage media, wherein the method receives information provided by the data storage services customer, allocates a first holographic data storage medium for exclusive storage of information provided by the data storage services customer, defines an outer storage portion of the first allocated holographic data storage medium, and stores the information as one or more holograms encoded in the outer storage portion of the first holographic data storage medium.

摘要翻译： 一种使用设置在由数据存储服务提供商操作的全息数据存储系统中的一个或多个全息数据存储介质来提供数据存储服务的方法，其中所述全息数据存储系统包括光源，空间光调制器和多个 全息数据存储介质，其中该方法接收由数据存储服务客户提供的信息，分配第一全息数据存储介质，用于专门存储由数据存储服务客户提供的信息，定义第一分配的全息数据存储器的外部存储部分 并且将该信息存储为编码在第一全息数据存储介质的外部存储部分中的一个或多个全息图。

公开(公告)号：US20100214682A1

公开(公告)日：2010-08-26

申请号：US12392822

申请日：2009-02-25

申请人： WILLIAM B. BOYLE ,  CHUN SEI TSAI

发明人： WILLIAM B. BOYLE ,  CHUN SEI TSAI

IPC分类号： G11B5/09

CPC分类号： G11B20/18 ,  G11B20/1258 ,  G11B2020/1232 ,  G11B2020/1281 ,  G11B2020/1287 ,  G11B2220/20

摘要： A disk drive is disclosed comprising a disk and a head actuated over the disk. The disk comprises a plurality of tracks, wherein each track comprises a plurality of data sectors. A read command is received from a host to read data from a target data sector. When it is determined that the target data sector has not been written by the host, dummy data is returned to the host.

摘要翻译： 公开了一种磁盘驱动器，其包括盘和在盘上致动的磁头。 盘包括多个轨道，其中每个轨道包括多个数据扇区。 从主机接收到读取命令以从目标数据扇区读取数据。 当确定目标数据扇区尚未被主机写入时，将虚拟数据返回给主机。