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1. 发明授权

US06909574B2 Disk device conducting a disturbance compensation based on a time-interval measurement in reading servo sectors recorded on a disk 失效
标题翻译：在读取记录在盘上的伺服扇区时，基于时间间隔测量进行干扰补偿的磁盘装置
公开(公告)号：US06909574B2
公开(公告)日：2005-06-21
申请号：US09880193
申请日：2001-06-13
申请人： Koichi Aikawa , Tatsuro Sasamoto , Akihide Jinzenji
发明人： Koichi Aikawa , Tatsuro Sasamoto , Akihide Jinzenji
IPC分类号： G11B5/55 , G11B5/596 , G11B21/10
CPC分类号： G11B5/59627 , G11B5/5582 , G11B5/59605
摘要： A disk device comprises a disk having predetermined information sectors recorded at a constant interval; a head scanning the disk; and a disturbance-compensation unit obtaining an amount of a disturbance based on a time-interval measurement in reading the predetermined information sectors so as to compensate a position of the head according to the amount of the disturbance.
摘要翻译：磁盘装置包括具有以恒定间隔记录的预定信息扇区的磁盘; 头扫描磁盘; 以及干扰补偿单元，在读取预定的信息扇区的基础上获得基于时间间隔测量的干扰量，以便根据干扰量来补偿头部的位置。

2. 发明授权

US06721122B2 Disk drive unit and control method for same 失效
标题翻译：磁盘驱动单元及其控制方法相同
公开(公告)号：US06721122B2
公开(公告)日：2004-04-13
申请号：US09735055
申请日：2000-12-11
申请人： Koichi Aikawa , Tatsuro Sasamoto , Susumu Yoshida , Akihide Jinzenji
发明人： Koichi Aikawa , Tatsuro Sasamoto , Susumu Yoshida , Akihide Jinzenji
IPC分类号： G11B5596
CPC分类号： G11B5/59627
摘要： A disk drive unit includes acceleration sensors mounted thereon. A sequence for calculating an amount by which a head actuator is adjusted during recording and readout operations is changed based on an output from the acceleration sensors.
摘要翻译：磁盘驱动单元包括安装在其上的加速度传感器。用于计算在记录和读出操作期间调节头致动器的量的顺序根据来自加速度传感器的输出而改变。

3. 发明授权

US06690549B1 Storage device 失效
标题翻译：储存设备
公开(公告)号：US06690549B1
公开(公告)日：2004-02-10
申请号：US09501470
申请日：2000-02-09
申请人： Koichi Aikawa , Tatsuro Sasamoto , Susumu Yoshida , Akihide Jinzenji , Tomoo Sukagawa , Keiji Aruga , Yoshiaki Koizumi , Yasuyoshi Asao
发明人： Koichi Aikawa , Tatsuro Sasamoto , Susumu Yoshida , Akihide Jinzenji , Tomoo Sukagawa , Keiji Aruga , Yoshiaki Koizumi , Yasuyoshi Asao
IPC分类号： G11B2108
CPC分类号： G11B5/4813
摘要： A magnetic disk unit has two actuators each rotating on a common rotary shaft. The two actuators are driven by a voice coil motor. The voice coil motor comprises: a magnetic circuit comprising a magnet provided for the two actuators on a common basis and two yokes, which are associated with the two actuators, respectively, said two yokes being disposed at both sides between which the magnet intervenes; and two coils provided for the two actuators, respectively.
摘要翻译：磁盘单元具有两个在公共旋转轴上旋转的致动器。两个致动器由音圈电机驱动。音圈电机包括：一个磁路，包括一个共同设置的两个致动器的磁体和两个分别与两个致动器相关联的磁轭，所述两个磁轭设置在磁铁介于两个之间的两侧; 以及分别为两个致动器提供的两个线圈。

4. 发明授权

US06295507B1 Calibration method for acceleration sensor in storage device and storage device 失效
标题翻译：存储设备和存储设备中加速度传感器的校准方法
公开(公告)号：US06295507B1
公开(公告)日：2001-09-25
申请号：US09389730
申请日：1999-09-03
申请人： Tatsuro Sasamoto , Koichi Aikawa , Susumu Yoshida , Akihide Jinzenji
发明人： Tatsuro Sasamoto , Koichi Aikawa , Susumu Yoshida , Akihide Jinzenji
IPC分类号： G11B5596
CPC分类号： G11B5/596 , G11B5/5521
摘要： Disclosed is a calibration method for an acceleration sensor in a storage device for calibrating and a storage device, an enclosure for calibrating the acceleration sensor for compensating a vibration of an enclosure in a state of its being mounted in a storage drive. The calibration method and mode comprises a step of exciting a actuator of the drive by flowing a drive current having a predetermined current value, a step of calculating the acceleration of the enclosure of the drive from the predetermined current value and a mechanical transfer function of the storage device, a step of detecting a measured value of the acceleration sensor, and a step of calculating a sensitivity of the acceleration sensor from the calculated acceleration and from the detected measured value. The acceleration sensor is calibrated in the state of its being mounted in the disk drive, and hence the sensitivity can be precisely calibrated.
摘要翻译：公开了一种用于校准的存储装置中的加速度传感器和存储装置的校准方法，用于校准加速度传感器的外壳，用于在其安装在存储驱动器中的状态下补偿外壳的振动。校正方法和模式包括通过流动具有预定电流值的驱动电流来激励驱动器的致动器的步骤，从预定电流值计算驱动器的外壳的加速度的步骤和存储装置，检测加速度传感器的测量值的步骤，以及根据所计算的加速度和检测到的测量值来计算加速度传感器的灵敏度的步骤。加速度传感器在安装在磁盘驱动器中的状态下进行校准，因此灵敏度可以精确校准。

5. 发明申请

US20100142083A1 MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE DEVICE 审中-公开
标题翻译：磁记录介质和磁存储器件
公开(公告)号：US20100142083A1
公开(公告)日：2010-06-10
申请号：US12634584
申请日：2009-12-09
申请人： Koichi Aikawa
发明人： Koichi Aikawa
IPC分类号： G11B21/02
CPC分类号： G11B5/59688 , B82Y10/00 , G11B5/59627 , G11B5/59633 , G11B5/743 , G11B5/746 , G11B5/82
摘要： According to one embodiment, a magnetic recording medium includes a substrate and a single domain magnetic dot. The single domain magnetic dot is provided on the substrate and is written with a compensation signal for controlling the position of at least one of a recording device and a reproducing device. The single domain magnetic dot has a length in the radial direction of the substrate shorter than a length in the circumferential direction of the substrate.
摘要翻译：根据一个实施例，磁记录介质包括基底和单畴磁点。单畴磁点设置在基板上，并且被写入用于控制记录装置和再现装置中的至少一个的位置的补偿信号。单畴磁点在基板的径向方向上的长度比基板的圆周方向的长度短。

6. 发明授权

US08542458B2 Magnetic disk drive and method for controlling microactuator in magnetic disk drive 失效
标题翻译：磁盘驱动器及磁盘驱动器微致动器控制方法
公开(公告)号：US08542458B2
公开(公告)日：2013-09-24
申请号：US13290459
申请日：2011-11-07
申请人： Toshitaka Matsunaga , Hideo Sado , Koichi Aikawa , Tetsuya Tabuchi
发明人： Toshitaka Matsunaga , Hideo Sado , Koichi Aikawa , Tetsuya Tabuchi
IPC分类号： G11B5/596
CPC分类号： G11B5/596 , G11B5/4873 , G11B5/5552
摘要： According to one embodiment, a magnetic disk drive includes a disk, a first microactuator, a second microactuator and a servo controller. The disk comprises a first surface and a second surface. The first and second microactuators allow first and second heads associated with the first and second surfaces to make micromotion based on first and second operation amounts, respectively. The servo controller provides a third operation amount to the first microactuator as the first operation amount and provides an operation amount obtained by inverting a polarity of a frequency component with a particular frequency contained in the third operation amount, to the second microactuator as the second operation amount, if the third operation amount is generated as an operation amount to be provided to the first microactuator in a particular mode in which the first surface is used as a tracking surface.
摘要翻译：根据一个实施例，磁盘驱动器包括盘，第一微致动器，第二微致动器和伺服控制器。盘包括第一表面和第二表面。第一和第二微致动器允许分别基于第一和第二操作量分别与第一和第二表面相关联的第一和第二头部进行微动作。伺服控制器向第一微型致动器提供第三操作量作为第一操作量，并且通过将具有第三操作量中包含的特定频率的频率分量的极性反转而获得的操作量作为第二操作提供给第二微型致动器如果第三操作量被产生作为将第一表面用作跟踪表面的特定模式中提供给第一微致动器的操作量。

7. 发明授权

US06433947B1 Cassette auto changer system 失效
标题翻译：盒式自动更换系统
公开(公告)号：US06433947B1
公开(公告)日：2002-08-13
申请号：US09692757
申请日：2000-10-19
申请人： Keiji Tadokoro , Noriyuki Yamazaki , Junichi Saiki , Hideaki Noguchi , Nobuhiro Tsurumaki , Takao Mokutani , Toru Yumine , Koichi Aikawa
发明人： Keiji Tadokoro , Noriyuki Yamazaki , Junichi Saiki , Hideaki Noguchi , Nobuhiro Tsurumaki , Takao Mokutani , Toru Yumine , Koichi Aikawa
IPC分类号： G11B1700
CPC分类号： G11B15/6815
摘要： A cassette auto changer system includes a cassette console mounting a rack for holding a plurality of tape cassettes, a drive console for mounting a tape playing or playing and recording device or a plurality of such devices. A base console mounts the cassette and drive consoles and the entire cassette auto changer system is housed in a housing console. According to a compact design a cassette shuttle portion of the transport mechanism is rotatable both vertically and horizontally and includes structure, such as a cassette hand portion, for effecting insertion and extraction of a cassette from one of a plurality of cassette compartments provided in the cassette rack. The cassette hand may also include a release lever engaging a lock lever at each cassette compartment. Further, grasping members include a centering device for achieving a predetermined support position for a cassette. In addition, paired position detection portions and corresponding sensors are provided. For compactness, driven components receive driving power from a power source via other, intervening driven compartments. The cassette transport is also operable to and from a cassette port whereby cassettes may be inserted into and removed from the housing console. Control portion is provided to allow a single cassette port to function as both an IN or an OUT port. Thus a compact, full featured cassette auto changer may be provided which is robust, reliable and compact.
摘要翻译：盒式自动更换器系统包括安装用于保持多个盒式磁带的机架的盒式控制台，用于安装磁带播放和播放记录装置的驱动控制台或多个这样的装置。底座控制台安装盒式磁带机和驱动控制台，整个磁带自动更换系统安装在外壳控制台中。根据紧凑的设计，输送机构的卡带穿梭部分可垂直和水平地旋转，并且包括诸如盒式手部部分的结构，用于从设置在盒中的多个盒室中的一个插入和取出盒架。盒式手指还可以包括接合每个盒室处的锁定杆的释放杆。此外，抓持构件包括用于实现盒的预定支撑位置的定心装置。此外，提供成对位置检测部分和相应的传感器。对于紧凑性，驱动部件通过其他中间驱动的隔间从动力源接收驱动力。盒式传送器还可操作到盒式磁带端口，从而盒式磁带可以插入壳体控制台中并从壳体控制台移除。提供控制部分以允许单个盒式端口用作IN或OUT端口。因此，可以提供紧凑的，全功能的盒式自动更换器，其坚固，可靠和紧凑。

8. 发明授权

US06166877A Cassette auto changer system including tape signal reading means and selection means for selecting between a plurality of cassettes 失效
标题翻译：盒式自动换带器系统，包括带信号读取装置和用于在多个盒之间进行选择的选择装置
公开(公告)号：US06166877A
公开(公告)日：2000-12-26
申请号：US770178
申请日：1996-12-19
申请人： Keiji Tadokoro , Noriyuki Yamazaki , Junichi Saiki , Hideaki Noguchi , Nobuhiro Tsurumaki , Takao Mokutani , Toru Yumine , Koichi Aikawa
发明人： Keiji Tadokoro , Noriyuki Yamazaki , Junichi Saiki , Hideaki Noguchi , Nobuhiro Tsurumaki , Takao Mokutani , Toru Yumine , Koichi Aikawa
IPC分类号： G11B15/68
CPC分类号： G11B15/6815
摘要： A cassette auto changer system including a tape signal reading member and a selection member for selecting between a plurality of cassettes. The cassette auto changer includes a base console including a port for tape insertion or extraction operations and having a tape insert compartment. The base console has upper and lower guide rails. A drive console mounts the tape signal reading member and a cassette console mounts a plurality of compartments for storing the tape cassettes. A tape transfer member transports the tape cassettes selectively between the base console, the drive console and the cassette console. An electrically conductive rail is disposed proximate to the guide rails which is powered by enclosed electrical wiring circuitry. In addition, an unmagnetized cassette shuttle body of the tape transfer member is driven along the electrically conductive rail and is guided along the guide rails. Electrical current is input to the tape transfer member form the electrically conductive rail via the cassette shuttle body.
摘要翻译：一种盒式自动变换器系统，包括一个带状信号读取构件和用于在多个盒之间进行选择的选择构件。盒式自动更换器包括一个基本控制台，包括用于磁带插入或提取操作的端口，并具有磁带插入隔间。底座具有上下导轨。驱动器控制台安装磁带信号读取构件，并且磁带盒控制台安装多个用于存储磁带盒的隔间。磁带传送构件在基本控制台，驱动器控制台和盒式控制台之间选择性地传送磁带盒。导电导轨靠近导轨设置，该导轨由封闭的电线路电路供电。此外，带传送构件的非磁化的盒式梭体沿着导电轨道被驱动并沿着导轨被引导。电流通过盒式穿梭体从导电轨道输入到带传送构件。

9. 发明授权

US06690530B2 Cassette auto changer system 失效
标题翻译：盒式自动更换系统
公开(公告)号：US06690530B2
公开(公告)日：2004-02-10
申请号：US09925438
申请日：2001-08-09
申请人： Keiji Tadokoro , Noriyuki Yamazaki , Junichi Saiki , Hideaki Noguchi , Nobuhiro Tsurumaki , Takao Mokutani , Toru Yumine , Koichi Aikawa
发明人： Keiji Tadokoro , Noriyuki Yamazaki , Junichi Saiki , Hideaki Noguchi , Nobuhiro Tsurumaki , Takao Mokutani , Toru Yumine , Koichi Aikawa
IPC分类号： G11B1700
CPC分类号： G11B15/6815
摘要： A cassette auto changer system including a member for selectably providing a plurality of cassettes to be loaded into one or more tape signal readers. A cassette rack is provided including a plurality of cassette receiving compartments, a cassette port accessible from an outer side of the auto changer apparatus whereby cassettes may be inserted or removed from the auto changer apparatus, a tape transfer mechanism operable to selectably transport cassettes between the cassette rack and the tape signal reader, and the cassette port. A YES/NO sensor at the cassette port determines whether a cassette is present in the cassette port. In applicants' cassette auto changer system, when a YES indicator determined by the YES/NO sensor changes to a NO determination, a controller sets the cassette port an IN port empty condition. When in such IN port empty condition the YES/NO sensor changes to a YES condition to indicate the presence of a cassette in the cassette port, operation of the tape transfer mechanism to the cassette port is disabled and an IN port loaded condition is determined. When, in an IN port empty condition of the cassette port and operation of the tape transfer mechanism is detected by the YES/NO sensor, the controller determines an OUT port loaded condition of the cassette port. When in the OUT port loaded condition, a change from a YES indication to a NO indication is determined by the the YES/NO sensor, an IN port empty condition of the cassette port is determined by the controller.
摘要翻译：一种盒式自动换带器系统，包括用于可选择地提供要装载到一个或多个带式信号读取器中的多个盒的部件。一种盒式磁带机架，包括多个磁带盒接收室，一个盒式磁带接口，可从自动更换装置的外侧接近，从而磁带盒可以从自动更换装置中插入或取出;磁带传送机构，可操作地可选择地将磁带盒盒式磁带机和磁带信号读取器以及磁带机端口。盒式磁带端口上的YES / NO传感器确定盒式磁带是否存在。在申请人的盒式自动更换系统中，当由YES / NO传感器确定的YES指示变为NO确定时，控制器将盒式磁带端口设置为IN端口空的状态。当在这样的IN端口空闲状态时，YES / NO传感器变为YES条件以指示盒式磁带端口中存在盒式磁带，磁带传送机构到盒式磁带端口的操作被禁止并且IN端口装载状态被确定。当在盒式磁带端口的IN端口空闲状态和带传送机构的操作被YES / NO传感器检测到时，控制器确定盒式磁带端口的OUT端口加载状态。当处于OUT端口状态时，由YES / NO传感器确定从YES指示到NO指示的变化，盒控制器端口的IN端口空闲状态由控制器决定。

10. 发明授权

US6122117A Method for digitally demodulating position signals recorded on recording media 失效
标题翻译：用于数字解调记录在记录介质上的位置信号的方法
公开(公告)号：US6122117A
公开(公告)日：2000-09-19
申请号：US18516
申请日：1998-02-04
申请人： Koichi Aikawa
发明人： Koichi Aikawa
IPC分类号： G11B5/596 , G11B5/02 , G11B5/09
CPC分类号： G11B5/59688 , G11B5/59655
摘要： Disclosed is a method of demodulating a position signal in a magnetic disk device for reading servo burst signals, which have been recorded in a servo area of a magnetic disk, by a head, and outputting a position signal, which indicates a deviation from a reference position on a track, using the servo burst signals that have been read. The position signal demodulating method includes (1) recording first and second servo burst signals in the servo area alternately in the radial direction, (2) digitally sampling the first and second servo burst signals, which have been read by the head, at a frequency two or more times greater than a servo burst signal frequency, (3) calculating area information of each of first and second servo burst signal waveforms by summing absolute values of the digitally sampled values in regard to each of the first and second servo burst signals, and (4) outputting, as a position signal, the difference between the area information of the first servo burst signal waveform and the area information of the second servo burst signal waveform.
摘要翻译：公开了一种在磁盘装置中解调用于读取已被记录在磁盘的伺服区域中的伺服突发信号的位置信号的方法，并且输出指示与参考的偏差的位置信号使用已读取的伺服脉冲串信号在轨道上的位置。位置信号解调方法包括：（1）在径向上交替地在伺服区域中记录第一和第二伺服脉冲串信号，（2）按照频率对头读取的第一和第二伺服脉冲串信号进行数字采样比伺服脉冲串信号频率大两倍以上，（3）通过对与第一和第二伺服脉冲串信号中的每一个相关的数字采样值的绝对值相加来计算第一和第二伺服脉冲串信号波形中的每一个的区域信息，和（4）作为位置信号输出第一伺服脉冲串信号波形的区域信息与第二伺服脉冲串信号波形的区域信息之间的差异。

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