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1. 发明授权

US5561566A Information recording disk and drive system using no sector ID to increase data storage capacity 失效
标题翻译：信息记录磁盘和驱动系统不使用扇区ID来增加数据存储容量
公开(公告)号：US5561566A
公开(公告)日：1996-10-01
申请号：US356427
申请日：1994-12-15
申请人： Yuji Kigami , Koji Kurachi , Takao Matsui , Takashi Nakamura , Tsutomu Numata , Kenji Ogasawara , Mayumi Okada , Yuji Yokoe
发明人： Yuji Kigami , Koji Kurachi , Takao Matsui , Takashi Nakamura , Tsutomu Numata , Kenji Ogasawara , Mayumi Okada , Yuji Yokoe
IPC分类号： G11B20/10 , G11B5/012 , G11B5/09 , G11B19/02 , G11B20/12 , G11B20/18 , G11B27/10
CPC分类号： G11B20/1883 , G11B19/02 , G11B20/1258 , G11B5/012 , G11B2020/10916 , G11B2020/1234 , G11B2020/1282 , G11B2220/20
摘要： A disk drive having embedded servo information accesses data without using sector identifier recorded in each sector. When a signal sector pulse signal (SP) at the end of a servo area is detected in a dead state during start up, a first data state for the start of a sector transits to a second data state for the litter region of the sector being divided in accordance with the capacity stored in a current sector's pointer register. At the beginning of the sector, the contents of a next sector's pointer register is stored in current sector's pointer register and the contents of a next sector's operation register is stored in a current sector's operation register. Upon completion of sector processing, the first data state is maintained when the next sector is contiguous. When a terminate instruction is stored in current sector's operation register, the process moves to dead state. When the servo area arrives, the process moves to idle state. Responsive to this state, the magnetic head is activated to enable read and write operation for sectors having no sector identifier on the disk.
摘要翻译：具有嵌入式伺服信息的磁盘驱动器访问数据而不使用记录在每个扇区中的扇区标识符。当在起动期间在死区中检测到伺服区域结束处的信号扇区脉冲信号（SP）时，用于扇区开始的扇区的第一数据状态转换到第二数据状态，用于扇区的凋落物区域为根据存储在当前扇区的指针寄存器中的容量进行划分。在扇区的开始处，下一个扇区的指针寄存器的内容存储在当前扇区的指针寄存器中，下一个扇区的操作寄存器的内容存储在当前扇区的操作寄存器中。在扇区处理完成时，当下一扇区连续时，保持第一数据状态。当终止指令存储在当前扇区的操作寄存器中时，进程进入死区。当伺服区到达时，过程进入空闲状态。响应于该状态，磁头被激活，以便能够对盘上没有扇区标识符的扇区进行读写操作。

2. 发明授权

US5812338A Method and apparatus for indicating start of servo information on a recording medium 失效
标题翻译：用于在记录介质上指示启动伺服信息的方法和装置
公开(公告)号：US5812338A
公开(公告)日：1998-09-22
申请号：US649578
申请日：1996-05-17
申请人： Kenji Ogasawara , Takashi Nakamura , Nobuya Matsubara , Yuzo Nakagawa , Yuji Kigami , Hiroshi Uchiike , Tsutomu Numata
发明人： Kenji Ogasawara , Takashi Nakamura , Nobuya Matsubara , Yuzo Nakagawa , Yuji Kigami , Hiroshi Uchiike , Tsutomu Numata
IPC分类号： G11B21/10 , G11B5/55 , G11B5/596 , G11B21/08
CPC分类号： G11B21/083 , G11B21/085 , G11B5/553 , G11B5/59655 , G11B5/59688
摘要： A disk and a disk drive having a servo start mark for identifying a servo-information start position recorded on the disk is provided. The servo start mark has a plurality of bit patterns unused for other areas in servo information. A method for identifying the position of a signal transducer on a disk is also provided in which it is judged that the signal transducer is present at a predetermined position even if an error is present and the error is a one-bit error. This is accomplished by assuming that the position is correct when the following conditions are confirmed: (a) a parity error occurs in a read servo-information bit pattern and (b) read servo-information bit pattern does not coincide with servo information of an adjacent track.
摘要翻译：提供具有用于识别记录在盘上的伺服信息开始位置的伺服起始标记的盘和盘驱动器。伺服起始标记对于伺服信息中的其他区域具有未使用的多个位模式。还提供了用于识别盘上的信号换能器的位置的方法，其中即使存在错误并且错误是一位错误，也可以判断信号换能器存在于预定位置。这是通过假设当确定以下条件时位置是正确的：（a）在读取伺服信息位模式中发生奇偶校验错误，（b）读取伺服信息位模式与伺服信息位模式的伺服信息不一致相邻轨道。

3. 发明授权

US5754355A Disk drive apparatus and read error recovery method in a disk drive apparatus 失效
标题翻译：磁盘驱动装置中的磁盘驱动装置和读取错误恢复方法
公开(公告)号：US5754355A
公开(公告)日：1998-05-19
申请号：US633596
申请日：1996-04-17
申请人： Takashi Nakamura , Isao Yoneda , Yuji Yokoe , Kazushi Tsuwako , Fujio Harako , Katsumi Suda , Michio Nakajima , Kenji Ogasawara
发明人： Takashi Nakamura , Isao Yoneda , Yuji Yokoe , Kazushi Tsuwako , Fujio Harako , Katsumi Suda , Michio Nakajima , Kenji Ogasawara
IPC分类号： G11B5/00 , G11B5/60 , G11B19/04 , G11B19/20 , G11B23/50 , G11B15/46
CPC分类号： G11B5/6005 , G11B19/04 , G11B19/20 , G11B23/505 , G11B2005/0016
摘要： A disk drive apparatus and read error recovery method in a disk drive apparatus removes thermal asperities on disk surfaces. A projection, such as a thermal asperity, on the recording surfaces of disks is detected when a signal transducer head contacts the projection. The flying height of the signal transducer head is lowered, e.g., by changing the disk rotation speed from the normal rotation speed in read/write operations or by heating a suspension having a bimetal element, while the signal transducer head is positioned over the detected projection on the track. The signal transducer head strikes the projection to break the projection. This avoids a subsequent error from being caused by the thermal asperity.
摘要翻译：磁盘驱动装置中的磁盘驱动装置和读取错误恢复方法去除磁盘表面上的热凹凸。当信号传感器头接触投影时，检测到盘的记录表面上的诸如热不均匀性的投影。信号传感器头的飞行高度例如通过在读/写操作中通过将盘旋转速度从正常旋转速度改变或通过加热具有双金属元件的悬架而降低，同时信号传感器头位于检测到的投影上方在轨道上。信号传感器头撞击突起以断开突起。这避免了由于热不平坦造成的后续错误。

4. 发明授权

US06236527B1 Disk drive with actuator load/unload controller 失效
标题翻译：带执行器负载/卸载控制器的磁盘驱动器
公开(公告)号：US06236527B1
公开(公告)日：2001-05-22
申请号：US09103758
申请日：1998-06-24
申请人： Hiroshi Uchiike , Kenji Ogasawara , Yoshiro Amano , Masahiro Shimizu , Shusuke Kurihara , Kazunari Tsuchimto , Nobuyuki Kitazaki , Shinji Ueno , Isao Yoneda , Yuji Yokoe , Fuminori Sai
发明人： Hiroshi Uchiike , Kenji Ogasawara , Yoshiro Amano , Masahiro Shimizu , Shusuke Kurihara , Kazunari Tsuchimto , Nobuyuki Kitazaki , Shinji Ueno , Isao Yoneda , Yuji Yokoe , Fuminori Sai
IPC分类号： G11B2102
CPC分类号： G11B19/04 , G11B5/54 , G11B21/12
摘要： A disk drive with means to prevent accidental landing of a head/slider on the disk surface is described. In one embodiment a shock sensor is provided to sense external shocks received by the mechanism. During loading (positioning) of the actuator bearing the head/slider over the disk, if a shock is sensed, loading is stopped and an immediate unloading is performed to return the actuator to the withdrawn position. In another embodiment the unload operation is performed when the rotational speed of the disk is changed. In another embodiment the unload operation is performed when the rotational speed of the disk drops below a threshold. A circuit and method for detecting when the rotational speed of the disk drops below a threshold is also provided. The unloading in the various embodiments may be performed using velocity control or without velocity control.
摘要翻译：描述了具有防止头/滑块在盘表面上意外着落的装置的磁盘驱动器。在一个实施例中，提供了一种震动传感器来感测由机构接收的外部冲击。在将头/滑块轴承到盘上的执行器的装载（定位）期间，如果感测到冲击，则停止加载，并立即执行卸载以将执行器返回到撤回位置。在另一个实施例中，当盘的旋转速度改变时执行卸载操作。在另一个实施例中，当盘的转速下降到阈值以下时，执行卸载操作。还提供了一种用于检测盘的转速何时下降到阈值以下的电路和方法。各种实施例中的卸载可以使用速度控制或无速度控制来执行。

5. 发明授权

US5905603A Magnetic recording medium magnetic head positioning method, and magnetic recording apparatus 失效
标题翻译：磁记录介质磁头定位方法及磁记录装置
公开(公告)号：US5905603A
公开(公告)日：1999-05-18
申请号：US510173
申请日：1995-08-02
申请人： Kenji Ogasawara , Hiroshi Yanagisawa , Koji Kurachi
发明人： Kenji Ogasawara , Hiroshi Yanagisawa , Koji Kurachi
IPC分类号： G11B21/10 , G11B5/55 , G11B5/596
CPC分类号： G11B5/59655 , G11B5/553 , G11B5/59688
摘要： A method and apparatus for accurately positioning the magnetic head of disk drives is disclosed. A recording medium is provided having two radial data structures formed thereon. Each radial data structure includes two parallel and adjacent data burst pattern trains. The first burst pattern is defined by a first side centrally aligned with a concentric data track and a second side opposed to the first side and centrally aligned with an adjacent concentric data track. The third burst pattern is defined by a third side spaced apart from the first side of the first burst pattern by a distance not greater than the read width of a magnetic head and a fourth side opposed to the third side and spaced apart from the second side by a distance not greater than the read width. The first radial data structure generates a first signal for positioning the magnetic head relative to the recording medium. The second radial data structure, parallel and offset from the first data structure, generates a second head position signal. Thus, the second head position signal is detected before the first head position signal becomes undetectable.
摘要翻译：公开了一种用于精确定位磁盘驱动器的磁头的方法和装置。提供具有形成在其上的两个径向数据结构的记录介质。每个径向数据结构包括两个并行和相邻的数据突发模式列。第一突发图案由与同心数据轨道集中对准的第一侧和与第一侧相对并且与相邻同心数据轨道居中对准的第二侧限定。第三突发图案由与第一突发图案的第一侧间隔开的距离不大于磁头的读取宽度的第三侧和与第三侧相对并与第二侧相隔开的第四侧限定距离不大于读宽度。第一径向数据结构产生用于相对于记录介质定位磁头的第一信号。与第一数据结构平行和偏移的第二径向数据结构产生第二头位置信号。因此，在第一头部位置信号变得不可检测之前检测到第二头部位置信号。

6. 发明授权

US5117320A Magnetostrictive head with d.c. bias magnetic field 失效
标题翻译：具有直流偏磁磁场的磁致伸缩头
公开(公告)号：US5117320A
公开(公告)日：1992-05-26
申请号：US592431
申请日：1990-10-04
申请人： Kenji Ogasawara , Koji Kurachi , Atsushi Tobari
发明人： Kenji Ogasawara , Koji Kurachi , Atsushi Tobari
IPC分类号： G11B5/02 , G11B5/09 , G11B5/245
CPC分类号： G11B5/2452 , G11B5/09
摘要： A magnetic head device comprising a magnetic core member made from a magnetic material having a positive magnetostriction constant and having confronting pole pieces separated by a non-magnetic material to form a transducing gap. A coil is wound around the magnetic core member so that a read signal can be read out from the coil, and a d.c. bias magnetic field is generated in the magnetic core member when a read signal is read out from the coil so that distortion of the read signal is suppressed.

7. 发明授权

US5815332A Recording medium having improved servo compensation and method for same 失效
标题翻译：具有改进的伺服补偿的记录介质及其方法
公开(公告)号：US5815332A
公开(公告)日：1998-09-29
申请号：US623943
申请日：1996-03-29
申请人： Hiroaki Suzuki , Kenji Ogasawara , Masaharu Kawamura , Koji Kurachi
发明人： Hiroaki Suzuki , Kenji Ogasawara , Masaharu Kawamura , Koji Kurachi
IPC分类号： G11B5/55 , G11B5/596 , G11B20/12 , G11B21/08 , G11B21/10 , G11B5/09
CPC分类号： G11B5/553 , G11B21/083 , G11B21/106 , G11B5/59605
摘要： A mechanism for compensating the servo data in a disk storage drive is provided. On each recording surface of a disk, a plurality of servo regions are diametrally formed in data regions along the diametral direction of the disk. In the servo region, a gray code (cyclic binary code) representing the address of a data track is recorded so as to correspond to the data track, and a burst pattern as a signal for positioning the head on the track are recorded. In the data track region, tracks are formed at a predetermined pitch P and in the tracks, a plurality of data is recorded. ID (Identification) is the identification information of the individual data. A servo compensation signal region is formed at a position sandwiched by the data region and the servo region known as the write recovery area. This is to compensate the servo signal in the servo region, thereby to enable error recovery when a read error or the like occurs in the servo region.
摘要翻译：提供了用于补偿磁盘存储驱动器中的伺服数据的机构。在盘的每个记录表面上，沿着盘的径向方向的数据区域沿径向形成多个伺服区域。在伺服区域中，记录表示数据磁道的地址的灰度代码（循环二进制码），以对应于数据磁道，并且记录作为将磁头定位在磁道上的信号的突发图形。在数据轨道区域中，以预定间距P和轨迹形成轨道，记录多个数据。 ID（识别）是各个数据的识别信息。伺服补偿信号区域形成在被数据区域和被称为写入恢复区域的伺服区域夹持的位置上。这是为了补偿伺服区域中的伺服信号，从而当在伺服区域中发生读取错误等时能够进行错误恢复。

8. 发明授权

US6091566A Magnetoresistive head and hard drive system having offsets from center of the servo area to minimize microjogging 失效
标题翻译：磁阻头和硬盘驱动器系统具有从伺服区域的中心偏移以最小化微距离
公开(公告)号：US6091566A
公开(公告)日：2000-07-18
申请号：US444664
申请日：1995-05-19
申请人： Takao Matsui , Kenji Ogasawara
发明人： Takao Matsui , Kenji Ogasawara
IPC分类号： G11B5/39 , G11B5/012 , G11B5/48 , G11B5/55 , G11B5/56 , G11B5/596 , G11B19/04
CPC分类号： G11B5/4886 , G11B19/04 , G11B5/553 , G11B5/5534 , G11B5/59627 , G11B5/59683 , G11B5/012 , G11B5/56 , G11B5/59644
摘要： A magnetoresistive (MR) reproduction element is positioned during data recording, data reproduction, and formatting so that its total range of movement is 3/2 times a range of movement (microjogging) from the location of the reproduction element in data recording to the location of the reproduction element in data reproduction. The total range of movement is centered within a range where the detection of positional error of the reproduction element changes linearly. Therefore, in the respective data recording, data reproduction and formatting processes, microjogging is performed and the detection of positional error changes linearly for each of an off-track OF.sub.W in data recording, an off-track OF.sub.R in data reproduction, and an off-track OF.sub.F in formatting. Accordingly, the characteristics of the MR reproduction element can be effectively used to a maximum degree and information can be reproduced without being undetected or erroneously detected.
摘要翻译：在数据记录，数据再现和格式化期间定位磁阻（MR）再现元件，使得它的总移动范围是从数据记录中的再现元素的位置到位置的移动范围（微距离）的3/2倍的再现元素。整个移动范围集中在再现元件的位置误差检测线性变化的范围内。因此，在数据记录，数据再现和格式化处理中，对数据记录中的非磁道OFW，数据再现中的偏离磁道OFR和关闭磁道OFW进行偏移，并且对位置误差的检测线性变化，在格式化中关闭。因此，可以最大程度地有效地使用MR再现元件的特性，并且可以不再检测或错误地检测信息。

9. 发明授权

US08873344B2 Power consumption control device, timepiece device, electronic device, power consumption control method, power consumption control program 有权
标题翻译：功耗控制装置，钟表装置，电子装置，功耗控制方式，功耗控制程序
公开(公告)号：US08873344B2
公开(公告)日：2014-10-28
申请号：US13199500
申请日：2011-08-31
申请人： Hiroshi Shimizu , Kazumi Sakumoto , Kenji Ogasawara , Kosuke Yamamoto , Keishi Honmura , Saburo Manaka , Akira Takakura
发明人： Hiroshi Shimizu , Kazumi Sakumoto , Kenji Ogasawara , Kosuke Yamamoto , Keishi Honmura , Saburo Manaka , Akira Takakura
IPC分类号： G04C10/00 , G04C10/02 , G04G19/12
CPC分类号： G04C10/02 , G04C10/00 , G04G19/12
摘要： A power consumption control device includes a power consumption control unit that receives the output potential of a photovoltaic cell generating an electromotive force, receives the output potential of a secondary battery charged by the electromotive force of the photovoltaic cell, causes a timepiece device to transition to a power saving state where a clock operation of measuring time is stopped when the output potential difference of the secondary battery is not greater than a predetermined threshold value, and the secondary battery is in a non-charging state indicating a state where the output potential difference of the photovoltaic cell is not greater than the output potential difference of the secondary battery.
摘要翻译：功率消耗控制装置包括功率消耗控制单元，其接收产生电动势的光伏电池的输出电位，接收由光伏电池的电动势充电的二次电池的输出电位，使钟表器件转变为当二次电池的输出电位差不大于预定阈值时测量时间的时钟操作停止的节电状态，并且二次电池处于非充电状态，指示输出电位差的光电池的输出电位差不大于二次电池的输出电位差。

10. 发明授权

US08406086B2 Electronic timepiece 失效
标题翻译：电子钟表
公开(公告)号：US08406086B2
公开(公告)日：2013-03-26
申请号：US12932126
申请日：2011-02-17
申请人： Hiroshi Shimizu , Tomohiro Ihashi , Kenji Ogasawara , Kazuo Kato , Kazumi Sakumoto , Akira Takakura , Eriko Noguchi , Takanori Hasegawa , Keishi Honmura , Saburo Manaka , Kosuke Yamamoto
发明人： Hiroshi Shimizu , Tomohiro Ihashi , Kenji Ogasawara , Kazuo Kato , Kazumi Sakumoto , Akira Takakura , Eriko Noguchi , Takanori Hasegawa , Keishi Honmura , Saburo Manaka , Kosuke Yamamoto
IPC分类号： G04C17/00 , G04B19/04 , G04F8/00
CPC分类号： G04C9/00
摘要： An electronic timepiece can reduce a burden imposed on a user who performs a manipulation for correcting the positional displacement of a pointer when a position of the pointer is displaced due to the demonstration of the pointer movement. The electronic timepiece includes: a pointer which is rotated in a first direction based on a manipulation signal corresponding to a manipulation from the outside; and a control part which performs the demonstration of the pointer movement in which the pointer is rotated in a second direction opposite to the first direction and the first direction, wherein the pointer is positioned at a position where a rotational angle in the first direction from a preset reference position is smaller than a rotational angle in a second direction from the reference position.
摘要翻译：当指针的位置由于指针移动的演示而移位时，电子钟表可以减轻执行用于校正指针的位置偏移的操作的用户的负担。电子钟表包括：基于与外部的操作相对应的操作信号在第一方向上旋转的指针; 以及控制部件，其执行指示器移动的演示，其中指针在与第一方向和第一方向相反的第二方向上旋转，其中指示器位于从第一方向的旋转角度从预设基准位置小于从基准位置开始的第二方向上的旋转角度。

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