公开(公告)号：US20220068307A1

公开(公告)日：2022-03-03

申请号：US17179626

申请日：2021-02-19

申请人： Kabushiki Kaisha Toshiba ,  Toshiba Electronic Devices & Storage Corporation

发明人： Kazumi Fujimoto ,  Takao Furuhashi

IPC分类号： G11B19/04 ,  G11B19/14 ,  G11B21/10 ,  G11B5/596

摘要： According to one embodiment, a magnetic disk device includes a disk having a first sector including first servo data, first user data, and first correction information used to correct a data error, a head that writes data to the disk and that reads data from the disk, and a controller that changes, according to a first defect length of a defect generated in the first sector in a circumferential direction of the disk, a first sector length of the first sector in the circumferential direction.

公开(公告)号：US07414643B2

公开(公告)日：2008-08-19

申请号：US11410290

申请日：2006-04-25

申请人： Keuk Young Bahng

发明人： Keuk Young Bahng

IPC分类号： G11B19/12 ,  G11B19/14 ,  G11B23/42 ,  B41J2/435

CPC分类号： G11B7/0037 ,  G11B7/08582 ,  G11B7/09

摘要： A method for compensating for a position error in an optical disc drive (ODD) is provided. The method compensates for a position error generated by a step error associated with a motor which moves an optical pickup unit across a surface of an optical disc. Error data associated with each step of the motor is stored in a memory unit of the ODD, and compensation for the related position error is accomplished by compensating for a track-direction movement of an actuator. The method is particularly useful when conducting a label-printing operation, in that it allows the label printing operation to be performed without generating position errors, gaps, or overwrites on a label surface of the disc, thus enhancing the quality of a label-printing operation and the resulting label.

摘要翻译： 提供了一种用于补偿光盘驱动器（ODD）中的位置误差的方法。 该方法补偿由与通过光盘表面移动光学拾取单元的电动机相关联的步进误差产生的位置误差。 与电动机的每个步骤相关的误差数据存储在ODD的存储器单元中，并且通过补偿致动器的轨道方向移动来实现相关位置误差的补偿。 该方法在进行标签打印操作时特别有用，因为它允许执行标签打印操作，而不会在盘的标签表面上产生位置误差，间隙或覆盖，从而提高标签印刷的质量 操作和结果标签。

公开(公告)号：US06980382B2

公开(公告)日：2005-12-27

申请号：US10091670

申请日：2002-03-05

申请人： Masakazu Hirano ,  Nobuyuki Suzuki

发明人： Masakazu Hirano ,  Nobuyuki Suzuki

IPC分类号： G11B5/00 ,  G11B5/455 ,  G11B5/55 ,  G11B19/14 ,  G11B27/36

CPC分类号： G11B5/5556

摘要： The magnetic disk drive system has a read head and a write head, writes data on the track of the disk, and reads data on the track of the disk. In the present invention, the distance between the heads in the circumferential direction of the disk is computed. The distance between the heads is computed based on the distance between the position of the write head where said data is written and the position of the read head where said data is read. The timing when data is written by the write head is determined by adding said distance to the position where the data is written. Thus, the efficiency of the format of the disk is improved.

摘要翻译： 磁盘驱动器系统具有读取头和写入头，将数据写入磁盘的轨道，并且读取磁盘轨道上的数据。 在本发明中，计算出磁盘在圆周方向上的距离。 基于写入所述数据的写入头的位置与读取头的位置之间的距离来计算头部之间的距离。 通过将写入头写入数据的定时通过将所述距离加到写入数据的位置来确定。 因此，提高了盘的格式的效率。

公开(公告)号：US20050195697A1

公开(公告)日：2005-09-08

申请号：US11064268

申请日：2005-02-23

申请人： Takashi Nagatomo

发明人： Takashi Nagatomo

IPC分类号： G11B7/004 ,  G11B7/007 ,  G11B7/085 ,  G11B7/14 ,  G11B19/00 ,  G11B19/14 ,  G11B19/28

CPC分类号： G11B7/0079 ,  G11B7/08505 ,  G11B7/14 ,  G11B19/14 ,  G11B19/28

摘要： An optical disk apparatus for controlling two optical pickups in an optimized way in response to operation modes for rotating the optical disk. When receiving a request for seeking one optical pickup from a HOST, a CPU judges whether to move the other optical pickup synchronously to satisfy positional restriction of the two optical pickups. Furthermore, when operating one optical pickup upon, for example, a read request. from the HOST, the CPU judges whether to move the other pickup to follow.

摘要翻译： 一种用于响应于用于旋转光盘的操作模式以优化的方式控制两个光学拾取器的光盘装置。 当从HOST接收到寻求一个光学拾取器的请求时，CPU判断是否同时移动另一个光学拾取器以满足两个光学拾取器的位置限制。 此外，当例如在读取请求时操作一个光学拾取器。 从HOST，CPU判断是否移动其他拾音器。

公开(公告)号：US5946155A

公开(公告)日：1999-08-31

申请号：US772319

申请日：1996-12-23

申请人： Kazunori Tochiyama

发明人： Kazunori Tochiyama

IPC分类号： G11B19/20 ,  G11B19/14 ,  G11B19/28 ,  H02P6/18 ,  G11B15/48

CPC分类号： G11B19/20 ,  G11B19/14

摘要： Three kinds of stop patterns are recorded at the same cylinder position of at least three recording surfaces of disk media. Each pattern is a division pattern in which one circumference is divided into two portions and which are recorded therein. Phases of the division patterns are sequentially deviated in the circumferential direction every 120.degree.. When a motor is activated, the motor stop position is detected on the basis of the stop patterns of the disk media and activating conditions to rotate the motor in a predetermined direction, thereby activating the brushless DC motor having no Hall sensor.

摘要翻译： 在盘介质的至少三个记录表面的相同圆柱位置处记录三种停止图案。 每个图案是其中一个圆周被分成两部分并被记录在其中的分割图案。 分割图案的相位在120度的圆周方向依次偏离。 当电动机被激活时，基于盘介质的停止模式和激活条件来检测电动机停止位置，以使电动机沿预定方向旋转，从而启动没有霍尔传感器的无刷直流电动机。

公开(公告)号：US5912782A

公开(公告)日：1999-06-15

申请号：US623261

申请日：1996-03-27

申请人： Troy T. Lee ,  Eric Gregory Oettinger ,  Louis Joseph Serrano ,  Mantle Man-Hon Yu

发明人： Troy T. Lee ,  Eric Gregory Oettinger ,  Louis Joseph Serrano ,  Mantle Man-Hon Yu

IPC分类号： G11B5/55 ,  G11B5/596 ,  G11B7/085 ,  G11B11/105 ,  G11B19/14 ,  G11B21/08

CPC分类号： G11B21/085 ,  G11B21/083 ,  G11B5/5547 ,  G11B5/59627 ,  G11B7/08529 ,  G11B11/10563 ,  G11B11/10576 ,  G11B19/14 ,  G11B5/553 ,  G11B7/08576

摘要： A servo control system and method for accurately controlling the actuator in a rotatable storage device by adjusting a corrective control signal according to the mode of operation of the actuator and the direction of actuator movement. During track following the corrective control signal is adjusted by a first factor determined by the ratio of a nominal force or torque factor to the actual force or torque factor at the current radial actuator position. When the actuator is seeking in a first direction, the corrective control signal is adjusted by a second factor determined by adjusting the first factor by a first amount, K.sub.fwd. When seeking in the reverse direction, the corrective control signal is adjusted by a third factor determined by adjusting the first factor by a second amount, K.sub.rev. K.sub.fwd incorporates measured variations in force or torque factor when the actuator is moving in the forward direction. Similarly, K.sub.rev incorporates measured variations in the force or torque factor when the actuator is moving in the reverse direction.

摘要翻译： 一种用于通过根据致动器的操作模式和致动器运动的方向调节校正控制信号来精确地控制可旋转存储装置中的致动器的伺服控制系统和方法。 在跟踪期间，校正控制信号通过由标称力或扭矩因子与当前径向致动器位置处的实际力或扭矩因子的比率确定的第一因素来调节。 当致动器沿第一方向寻求时，校正控制信号通过将第一因子调整第一个量Kfwd所确定的第二因子来调节。 当在相反方向上寻找时，校正控制信号通过将第一因子调整第二个量Krev确定的第三因子来调节。 当执行机构正向移动时，Kfwd将测量的力或扭矩因数的变化相结合。 类似地，当执行器沿相反方向移动时，Krev将测量的力或扭矩因数的变化相结合。

公开(公告)号：US5737284A

公开(公告)日：1998-04-07

申请号：US728306

申请日：1996-10-09

申请人： Minoru Yamada

发明人： Minoru Yamada

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/085 ,  G11B7/09 ,  G11B19/04 ,  G11B19/14 ,  G11B21/08 ,  G11B27/10 ,  G11B27/30 ,  G11B27/32 ,  G11B17/22 ,  G11B5/596

CPC分类号： G11B19/14 ,  G11B19/04 ,  G11B27/105 ,  G11B27/3063 ,  G11B27/329 ,  G11B7/08505 ,  G11B2220/2545 ,  G11B7/0946

摘要： In an optical disc drive, a rapid access to a target track within a program area is enabled in case of accidental reentry of an optical pick-up into a lead-in area during an access operation. Upon mounting a compact disc, a maximum relative address TLm within the lead-in area is detected and stored in a memory. If it is found during an accessing operation that a current position lies within the lead-in area, a total number of tracks interposed between the current position and the target position within the program area can be obtained based on a current address, the maximum relative address and a target address of the target position, thereby achieving a high speed accessing operation.

摘要翻译： 在光盘驱动器中，在访问操作期间在光学拾取器意外地再入入导入区域的情况下，能够快速访问程序区域内的目标轨道。 在安装光盘时，检测引导区内的最大相对地址TLm并将其存储在存储器中。 如果在访问操作期间发现当前位置位于导入区域内，则可以基于当前地址获得插入在程序区域内的当前位置和目标位置之间的轨道总数，最大相对 地址和目标位置的目标地址，从而实现高速访问操作。

公开(公告)号：US5654946A

公开(公告)日：1997-08-05

申请号：US769317

申请日：1996-12-19

申请人： Sang Youl Kim ,  Chung Ku Lee

发明人： Sang Youl Kim ,  Chung Ku Lee

IPC分类号： G11B15/02 ,  G11B15/087 ,  G11B15/093 ,  G11B15/44 ,  G11B19/02 ,  G11B19/04 ,  G11B19/12 ,  G11B19/14 ,  G11B21/08 ,  G11B27/10 ,  G11B27/11 ,  G11B27/34 ,  G11B7/00

CPC分类号： G11B27/34 ,  G11B15/026 ,  G11B15/087 ,  G11B15/093 ,  G11B15/442 ,  G11B19/02 ,  G11B19/04 ,  G11B19/12 ,  G11B19/14 ,  G11B21/081 ,  G11B27/105 ,  G11B27/107 ,  G11B27/11 ,  G11B2220/2545 ,  G11B2220/65 ,  G11B2220/90 ,  G11B2220/913 ,  G11B2220/93

摘要： This invention relates to a method for determining reproduction position of a reproduction device.The method for determining a reproduction position of a disc player in a reproduction device which reproduces information recorded on a recording medium through movement of a reproduction unit, includes a first step for identifying a piece number of music which was being reproduced at the time of power off and a position of a reproduction unit at the time of power off when power is being turned on after turned off during reproduction of the piece of music recorded on a recording medium, and a second step for moving the reproduction unit to a beginning position of the piece of music which was being reproduced at the time of power off and performing normal reproduction, and the method for determining reproduction position of a record player In a reproduction device having a reproduction unit fixed and a recording medium moving for reproducing information recorded thereon, includes a first step for, when during the reproduction of a music recorded on a recording medium power is turned off and then turned on, detecting existence of information of music from a part the reproduction unit is happened to match with at the time of turn on of pieces of music recorded on a recording medium, and a second step for finding non-existence of signal of music from the pad the reproduction unit is happened to match with the recording medium at the time of turn-on and performing reproduction from the beginning of the piece of music having been reproduced at the time of turn-off.

摘要翻译： 本发明涉及一种用于确定再现设备的再现位置的方法。 用于通过移动再现单元再现记录在记录介质上的信息的再现装置中确定再现装置的再现位置的方法包括：第一步骤，用于识别正在被再现的音乐的片数 关闭和在记录在记录介质上的音乐片段的再现期间关闭之后电源接通时在停电时的再现单元的位置，以及第二步骤，用于将再现单元移动到 在断电和正常再现时正在再现的音乐片段以及用于确定记录播放器的再现位置的方法在具有再现单元的再现设备和用于再现记录在其上的信息的移动记录介质的再现设备中， 包括第一步骤，当在记录在记录介质上的音乐的再现期间电源被切断时 然后打开，在打开记录在记录介质上的多条音乐片段时，从再现单元发生匹配的部分检测音乐信息的存在，以及用于发现不存在信号的信号的第二步骤 在打开时，再现单元发生与记录介质匹配的音乐，并且在关闭时再现的音乐片段的开头执行再现。

公开(公告)号：US5570244A

公开(公告)日：1996-10-29

申请号：US450170

申请日：1995-05-25

申请人： Mark Wiselogel

发明人： Mark Wiselogel

IPC分类号： G11B5/09 ,  G11B5/00 ,  G11B19/04 ,  G11B19/14 ,  G11B21/08 ,  G11B21/10 ,  G11B15/04 ,  G11B5/127 ,  G11B5/33

CPC分类号： G11B19/14 ,  G11B19/04 ,  G11B5/012 ,  G11B2005/0016 ,  G11B5/02

摘要： A method for controlling assertion of a write inhibit signal in a disk drive is described. The disk drive comprises at least one rotating disk having data recording surfaces, and a head for each recording surface. Each head is mounted by an actuator for selective positioning of the head over the respective disk surface. Each disk surface includes data tracks. The method comprises the steps of calculating and storing a write inhibit threshold value for each head in the disk drive, performing a track following operation to determine position of a preselected head relative to a preselected data track, retrieving the write inhibit threshold value for the preselected head, comparing the determined head position to the retrieved write inhibit threshold value and asserting a write inhibit signal upon a certain relationship between the determined head position and the retrieved write inhibit threshold value.

摘要翻译： 描述了一种用于控制磁盘驱动器中写入禁止信号的断言的方法。 磁盘驱动器包括具有数据记录表面的至少一个旋转盘和用于每个记录表面的头。 每个头部由致动器安装，用于将头部选择性地定位在相应的盘表面上。 每个磁盘表面都包括数据磁道。 该方法包括以下步骤：计算并存储磁盘驱动器中每个磁头的写入禁止阈值，执行跟踪操作以确定预选磁头相对于预选数据磁道的位置，检索预选的写入禁止阈值 头，将所确定的头部位置与检索到的写入禁止阈值进行比较，并根据所确定的头部位置与检索到的写入禁止阈值之间的确定关系来确定写入禁止信号。

公开(公告)号：US4914647A

公开(公告)日：1990-04-03

申请号：US89337

申请日：1987-08-25

申请人： Takuro Ono ,  Noboru Aoyama ,  Kaoru Morinaga

发明人： Takuro Ono ,  Noboru Aoyama ,  Kaoru Morinaga

IPC分类号： G11B19/20 ,  G11B17/04 ,  G11B19/00 ,  G11B19/04 ,  G11B19/10 ,  G11B19/14 ,  G11B33/08

CPC分类号： G11B17/043 ,  G11B19/00 ,  G11B19/04 ,  G11B19/10 ,  G11B19/14 ,  G11B33/08

摘要： An optical disc player for playing optical discs includes a disc compartment for accomodating an optical disc, a disc holding mechanism for holding an optical disc accomodated in the disc compartment, a disc rotation drive mechanism for rotating the optical disc held by the disc holding mechanism, an optical pickup device which is radially movable in respect to the optical disc rotated by the disc rotation drive mechanism for optically tracing the optical disc and a pickup locking mechanism which is responsive to the disc holding mechanism for locking the optical pickup device during a non-operation of the tracing operation.