公开(公告)号：US5929500A

公开(公告)日：1999-07-27

申请号：US802560

申请日：1997-02-19

申请人： Isao Yoneda ,  Kiyoshi Fukushima ,  Junichi Sasaki ,  Hiroshi Honmou ,  Masataka Itoh

发明人： Isao Yoneda ,  Kiyoshi Fukushima ,  Junichi Sasaki ,  Hiroshi Honmou ,  Masataka Itoh

IPC分类号： H01L21/60 ,  G02B6/42 ,  H01L31/02 ,  H01L31/0232 ,  H01L31/10

CPC分类号： G02B6/4214 ,  G02B6/4224 ,  G02B6/4249 ,  H01L2224/16

摘要： A light receiving element is comprised of a light sensitive surface on a semiconductor substrate and a positive electrode (anode), a negative electrode (cathode), a mounting precision test mask, a conductive electrode wire, and solder resist on the same substrate surface. A metal thin film, a mounting alignment mark, and a mounting precision mark window are provided on the back side of the substrate. Two or more electrode surfaces having either the anode or the cathode used as the common electrode are provided. The light sensitive surface is positioned approximately in the center between these two electrode surfaces. A highly precise mounting can therefore be achieved with the solder bump, even when mounting single light receiving elements. High precision mounting is also obtained when mounting light receiving element arrays. This type of light receiving element can be precisely positioned and bonded by solder bumps to a substrate having an optical fiber fitted in the V groove.

摘要翻译： 光接收元件由半导体衬底上的光敏表面和同一衬底表面上的正极（阳极），负电极（阴极），安装精密测试掩模，导电电极线和阻焊剂组成。 金属薄膜，安装对准标记和安装精密标记窗设置在基板的背面。 提供具有用作公共电极的阳极或阴极的两个或更多个电极表面。 光敏表面大致位于这两个电极表面之间的中心。 因此，即使安装单个光接收元件，也可以通过焊料凸块实现高精度的安装。 安装光接收元件阵列时也可获得高精度的安装。 这种类型的光接收元件可以通过焊料凸块精确定位和结合到具有安装在V沟槽中的光纤的基板。

公开(公告)号：US20110058276A1

公开(公告)日：2011-03-10

申请号：US12876802

申请日：2010-09-07

申请人： Hiroshi Uchida ,  Isao Yoneda ,  Chikako Sakagami ,  Kazuhisa Shishida

发明人： Hiroshi Uchida ,  Isao Yoneda ,  Chikako Sakagami ,  Kazuhisa Shishida

IPC分类号： G11B5/596

CPC分类号： G11B5/59622

摘要： A disk drive comprising a head for accessing a disk, an actuator for moving the head in the radial direction of the disk and a controller. The controller for servo control of the actuator based on servo data read out from the disk by the head. The controller is configured for maintaining a width of the adaptive chasing notch filter below a specified value in servo system control and estimating an oscillation frequency of the actuator.

摘要翻译： 一种磁盘驱动器，包括用于访问磁盘的磁头，用于沿磁盘的径向移动磁头的致动器和控制器。 伺服控制器，用于伺服控制，基于从磁盘读出的伺服数据。 控制器被配置为在伺服系统控制中将自适应追赶陷波滤波器的宽度保持在指定值以下，并且估计致动器的振荡频率。

公开(公告)号：US07474490B2

公开(公告)日：2009-01-06

申请号：US11796255

申请日：2007-04-26

申请人： Yukiko Hayashi ,  Isao Yoneda ,  Gaku Ikedo ,  Nobuhisa Koide ,  Yuhji Amari

发明人： Yukiko Hayashi ,  Isao Yoneda ,  Gaku Ikedo ,  Nobuhisa Koide ,  Yuhji Amari

IPC分类号： G11B15/46 ,  G11B15/18

CPC分类号： G11B19/28 ,  G11B19/04

摘要： Embodiments in accordance with the present invention provide a disk drive that ensures quieter rotational acceleration of a recording disk. Certain embodiments relate to a hard disk drive that detects the vibration of an enclosure by monitoring, via a driver, a counter electromotive voltage generated in a voice coil motor. If the hard disk drive detects a predetermined level of vibration or higher in the enclosure, it switches the status of a drive signal applied to a spindle motor so as to reduce the current level or smooth the waveform. This ensures reduced vibration of the enclosure.

摘要翻译： 根据本发明的实施例提供了一种确保记录盘的更安静的旋转加速度的磁盘驱动器。 某些实施例涉及通过经由驱动器监视在音圈电机中产生的反电动势来检测外壳的振动的硬盘驱动器。 如果硬盘驱动器在机箱中检测到预定的振动水平或更高的振动，则切换施加到主轴电机的驱动信号的状态，以便降低电流水平或平滑波形。 这确保减少外壳的振动。

公开(公告)号：US07271976B2

公开(公告)日：2007-09-18

申请号：US11265004

申请日：2005-11-01

申请人： Satoshi Ishii ,  Tetsuo Ueda ,  Isao Yoneda

发明人： Satoshi Ishii ,  Tetsuo Ueda ,  Isao Yoneda

IPC分类号： G11B21/02

CPC分类号： G11B5/5547

摘要： Embodiments of the invention reduce the noise occurring when the lubricating layer on the magnetic disk is smoothed. In one embodiment, a magnetic disk drive has a read/write mode parameter table for generating an electric current to be supplied to a voice coil motor when the magnetic head performs data read/write operations on the magnetic disk. The magnetic disk drive also has a smoothing mode parameter table for generating another electric current to be supplied to the voice coil motor when neither a data read nor a write operation is performed on the magnetic disk. The CPU refers to either the read/write mode parameter table or the smoothing mode parameter table and controls the electric current to be supplied to the voice coil motor. When a lubricating-layer smoothing event occurs, the CPU refers to the smoothing mode parameter table and after generating the associated electric current to be supplied to the voice coil motor, moves the magnetic head to seek between the outermost and innermost tracks on the surface of the magnetic disk to perform a smoothing process for the lubricating layer.

摘要翻译： 本发明的实施例减少了当磁盘上的润滑层平滑时产生的噪声。 在一个实施例中，当磁头对磁盘执行数据读/写操作时，磁盘驱动器具有用于产生要提供给音圈电机的电流的读/写模式参数表。 磁盘驱动器还具有平滑模式参数表，用于当不对磁盘执行数据读取或写入操作时，产生要提供给音圈电机的另一电流。 CPU指的是读/写模式参数表或平滑模式参数表，并控制提供给音圈电机的电流。 当发生润滑层平滑事件时，CPU参考平滑模式参数表，并且在产生要提供给音圈电机的相关联的电流之后，移动磁头以在表面上的最外侧和最内侧的轨道之间寻找 该磁盘对润滑层进行平滑处理。

公开(公告)号：US20060092549A1

公开(公告)日：2006-05-04

申请号：US11265004

申请日：2005-11-01

申请人： Satoshi Ishii ,  Tetsuo Ueda ,  Isao Yoneda

发明人： Satoshi Ishii ,  Tetsuo Ueda ,  Isao Yoneda

IPC分类号： G11B21/02

CPC分类号： G11B5/5547

摘要： Embodiments of the invention reduce the noise occurring when the lubricating layer on the magnetic disk is smoothed. In one embodiment, a magnetic disk drive has a read/write mode parameter table for generating an electric current to be supplied to a voice coil motor when the magnetic head performs data read/write operations on the magnetic disk. The magnetic disk drive also has a smoothing mode parameter table for generating another electric current to be supplied to the voice coil motor when neither a data read nor a write operation is performed on the magnetic disk. The CPU refers to either the read/write mode parameter table or the smoothing mode parameter table and controls the electric current to be supplied to the voice coil motor. When a lubricating-layer smoothing event occurs, the CPU refers to the smoothing mode parameter table and after generating the associated electric current to be supplied to the voice coil motor, moves the magnetic head to seek between the outermost and innermost tracks on the surface of the magnetic disk to perform a smoothing process for the lubricating layer.

摘要翻译： 本发明的实施例减少了当磁盘上的润滑层平滑时产生的噪声。 在一个实施例中，当磁头对磁盘执行数据读/写操作时，磁盘驱动器具有用于产生要提供给音圈电机的电流的读/写模式参数表。 磁盘驱动器还具有平滑模式参数表，用于当不对磁盘执行数据读取或写入操作时，产生要提供给音圈电机的另一电流。 CPU指的是读/写模式参数表或平滑模式参数表，并控制提供给音圈电机的电流。 当发生润滑层平滑事件时，CPU参考平滑模式参数表，并且在产生要提供给音圈电机的相关联的电流之后，移动磁头以在表面上的最外侧和最内侧轨迹之间寻找 该磁盘对润滑层进行平滑处理。

公开(公告)号：US06947243B2

公开(公告)日：2005-09-20

申请号：US10153683

申请日：2002-05-24

申请人： Hien Dang ,  Isao Yoneda ,  Tetsuo Ueda ,  Yuzo Nakagawa ,  Sri M. Sri-Jayantha

发明人： Hien Dang ,  Isao Yoneda ,  Tetsuo Ueda ,  Yuzo Nakagawa ,  Sri M. Sri-Jayantha

IPC分类号： G11B5/55 ,  G11B5/596 ,  G11B25/04

CPC分类号： G11B5/59627 ,  G11B5/5582 ,  G11B5/596 ,  G11B25/043

摘要： A method (and structure) senses a rotational vibration of a disk drive. The disk drive includes a rotating disk. The disk includes a plurality of reference bits across a surface thereof. The method (and structure) includes detecting the reference bits across a pattern on the rotating disk, and analyzing a time interval between adjacent ones of the reference bits.

公开(公告)号：US06549349B2

公开(公告)日：2003-04-15

申请号：US09955391

申请日：2001-09-18

申请人： Sri Muthuthamby Sri-Jayantha ,  Arun Sharma ,  Hien Phu Dang ,  Naoyuki Kagami ,  Yuzo Nakagawa ,  Akira Tokizono ,  Isao Yoneda

发明人： Sri Muthuthamby Sri-Jayantha ,  Arun Sharma ,  Hien Phu Dang ,  Naoyuki Kagami ,  Yuzo Nakagawa ,  Akira Tokizono ,  Isao Yoneda

IPC分类号： G11B2736

CPC分类号： G11B21/106 ,  G11B5/59611

摘要： Methods and systems for detecting and correcting for undesirable vibrations impacting the servo systems in data storage devices. A detection technique is provided wherein a detection filter is configured to scan a position signal of the servo system across a range of frequencies, and, at each respective scanned frequency, record an amplitude associated therewith. The recorded amplitudes are examined to determine whether any exceed a threshold, thereby locating a peak frequency of the vibration. Using the detected peak frequency of the vibration, a corrective filter is configured to operate about the peak frequency of vibration, thereby reducing its impact on the position signal in the servo system. Optimum detection and correction filter structures are disclosed, as are techniques for addressing filter state vectors as initial conditions as the corrective filters are repeatedly engaged during successive settle-out and track follow cycles (between seeks), as are continuous adaptation techniques for changing vibration environments.

摘要翻译： 用于检测和校正影响数据存储设备中的伺服系统的不期望的振动的方法和系统。 提供了一种检测技术，其中检测滤波器被配置为扫描频率范围内的伺服系统的位置信号，并且在每个相应的扫描频率处记录与之相关联的振幅。 检查记录的振幅以确定是否有超过阈值，从而定位振动的峰值频率。 使用检测到的振动峰值频率，校正滤波器被配置为围绕振动的峰值频率运行，从而减小其对伺服系统中位置信号的影响。 公开了最佳检测和校正滤波器结构，作为用于将滤波器状态向量寻址作为初始条件的技术，校正滤波器在连续的稳定和跟踪周期（寻找之间）期间重复接合），以及用于改变振动环境的连续自适应技术 。

公开(公告)号：US06181507B2

公开(公告)日：2001-01-30

申请号：US08692164

申请日：1996-08-05

申请人： Nobuyuki Kitazaki ,  Kiyoshi Satoh ,  Arun Sharma ,  Sri Muthuthamby Sri-Jayantha ,  Isao Yoneda

发明人： Nobuyuki Kitazaki ,  Kiyoshi Satoh ,  Arun Sharma ,  Sri Muthuthamby Sri-Jayantha ,  Isao Yoneda

IPC分类号： G11B5596

CPC分类号： G11B5/59605 ,  G11B5/59627 ,  G11B5/5965

摘要： A method and system for reducing positioning noise in a data storage system are provided. An access device is positioned over a data storage medium using a stream of bursts stored on the medium. The bursts are sensed at a frequency determined by the rate at which the medium is moved relative to a sensing device. Output positioning values are provided to position the access device at a frequency higher than the frequency at which the positioning bursts are sensed, and/or at random times. The random times may be calculated as random advances or delays from time points occurring at a fixed frequency.

摘要翻译： 提供了一种用于降低数据存储系统中的定位噪声的方法和系统。 访问设备使用存储在介质上的突发流来定位在数据存储介质上。 以由介质相对于感测装置移动的速率确定的频率感测脉冲串。 提供输出定位值以将访问设备定位在高于感测定位脉冲串的频率的频率处和/或随机时间。 随机时间可以被计算为在固定频率发生的时间点的随机前进或延迟。

公开(公告)号：US6141366A

公开(公告)日：2000-10-31

申请号：US174308

申请日：1998-10-19

申请人： Isao Yoneda

发明人： Isao Yoneda

IPC分类号： G02B6/42 ,  H01S5/00 ,  H01S5/026 ,  H01S5/042 ,  H01S5/40 ,  G02B6/30 ,  G02B6/36

CPC分类号： H01S5/4025 ,  G02B6/4249 ,  H01S5/0425

摘要： It is an object of the invention to effectively use semiconductor laser elements by suppressing difficulties caused by heat generated at the times of mounting and light emission in the semiconductor laser elements. A semiconductor laser module comprises a light source-mounting section, on which plural semiconductor laser elements are mounted and optical fiber-fixing section, which upports plural optical fibers at a predetermined lateral pitch. A pitch-converting section is provided between the light source-mounting section and the optical fiber-fixing section in order to respectively guide lights semitted from the semiconductor laser elements to the corresponding optical fibers. The light source-mounting section, the pitch-converting section and the optical fiber fixing section are formed on the same substrate.

摘要翻译： 本发明的目的是通过抑制在半导体激光元件中的安装和发光时产生的热量引起的困难来有效地使用半导体激光元件。 半导体激光器模块包括安装有多个半导体激光元件的光源安装部分和以预定横向间距上行多个光纤的光纤固定部分。 在光源安装部分和光纤固定部分之间设置有音调转换部分，以便将从半导体激光元件散射的光分别引导到对应的光纤。 光源安装部，音调转换部和光纤固定部形成在同一基板上。

公开(公告)号：US5717803A

公开(公告)日：1998-02-10

申请号：US747817

申请日：1996-11-13

申请人： Isao Yoneda ,  Junichi Sasaki ,  Masataka Itoh ,  Hiroshi Honmou

发明人： Isao Yoneda ,  Junichi Sasaki ,  Masataka Itoh ,  Hiroshi Honmou

IPC分类号： G02B6/42 ,  H01L31/0232 ,  H01L33/60 ,  H01L33/62 ,  G02B6/36

CPC分类号： G02B6/4224 ,  G02B6/4214 ,  G02B6/4232 ,  G02B6/4249

摘要： The optical fibers are arranged in a V groove formed at the surface of a silicon substrate and a cover is provided thereon. An electrode for solder bump is respectively formed at the position opposed with each other to the substrate and cover. These substrate and cover are deposited with solder in order to fix the optical fibers. The substrate or cover is previously provided, at the end point part of the optical fibers, with the mark for the positioning in the longitudinal direction of the optical fibers. The optical fibers are positioned with this mark. Here, the side surface of the optical fibers is provided with the metallized area at the position located in the predetermined distance from the end point thereof. Before fixing with the cover, the optical fibers can be deposited automatically to the predetermined position without alignment due to the self-alignment effect between the mark and metallized area. Meanwhile, the optical element can be deposited with the solder bump without adjustment to the area near the end point of the optical fiber by utilizing the self-alignment. Here, it is also possible to form the mark to the substrate for measuring the mounting position of the optical element after deposition thereof.

摘要翻译： 光纤布置在形成在硅衬底表面上的V沟槽中，并且在其上设置盖。 用于焊料凸点的电极分别形成在与基板和盖相对的位置上。 这些基板和盖子用焊料沉积以固定光纤。 预先在光纤的端点部分设置有用于在光纤的纵向上定位的标记的基板或盖。 光纤用这个标记定位。 这里，光纤的侧表面设置有位于距其端点预定距离的位置处的金属化区域。 在用盖子固定之前，由于标记和金属化区域之间的自对准效应，光纤可以自动沉积到预定位置而不进行对准。 同时，通过利用自对准，光学元件可以沉积有焊料凸块而不调整到光纤端点附近的区域。 这里，也可以在用于测量光学元件的沉积后的安装位置的基板上形成标记。