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1. 发明授权

US06556369B1 Disk drive device with a high frequency access method and apparatus 有权
标题翻译：具有高频率存取方式和装置的磁盘驱动装置
公开(公告)号：US06556369B1
公开(公告)日：2003-04-29
申请号：US09448227
申请日：1999-11-24
申请人： Atsushi Kanamaru , Hideo Asano , Tetsuo Ueda
发明人： Atsushi Kanamaru , Hideo Asano , Tetsuo Ueda
IPC分类号： G11B509
CPC分类号： G11B20/1883 , G11B5/012 , G11B5/5547 , G11B5/59633 , G11B5/82 , G11B27/329 , G11B2020/10916 , G11B2220/20
摘要： A disk drive device comprising a disk-shaped recording medium, having a recording surface on which a plurality of tracks having a predetermined width in a radial direction are defined, said recording surface including a first area wherein a plurality of recording tracks and a plurality of non-recording tracks are located so as to form an alternating pattern along the radial direction of the recording surface. The disk drive device may further comprise: a transducer to record information on the disk-shaped recording medium; a position error detector element to detect position error relative to a target track to be recorded on; an actuator to move the transducer to the target track according to the position error; and an end-of-seek detector, wherein when the transducer is moved to a target track inside the predetermined area the end-of-seek detector determines an end of seek based on whether the position error is less than a first threshold, and when the transducer is moved to a target track outside the predetermined area, the end-of-seek detector determines an end of seek based on whether the position error is less than a second threshold, wherein the second threshold is less than the first threshold.
摘要翻译：一种盘驱动装置，其特征在于，具有盘状记录媒体，具有记录面，在该记录面上形成有沿径向具有预定宽度的多个轨迹，所述记录面包括：第一区域，其中多个记录道和多个记录道非记录磁道位于记录表面的径向方向上形成交替图案。磁盘驱动器装置还可以包括：用于在盘状记录介质上记录信息的换能器; 用于检测相对于要记录的目标轨迹的位置误差的位置误差检测器元件; 根据位置误差将传感器移动到目标轨道的致动器; 以及搜索结束检测器，其中当所述换能器被移动到所述预定区域内的目标轨迹时，所述寻求终点检测器基于所述位置误差是否小于第一阈值来确定搜索结束，以及何时换能器被移动到预定区域外的目标轨道，寻求终点探测器基于位置误差是否小于第二阈值来确定搜索结束，其中第二阈值小于第一阈值。

2. 发明授权

US06622206B1 Method for controlling write cache transfer and disk unit 失效
标题翻译：控制写缓存传输和磁盘单元的方法
公开(公告)号：US06622206B1
公开(公告)日：2003-09-16
申请号：US09591020
申请日：2000-06-09
申请人： Atsushi Kanamaru , Hideo Asano , Tetsuo Ueda
发明人： Atsushi Kanamaru , Hideo Asano , Tetsuo Ueda
IPC分类号： G06F1200
CPC分类号： G06F3/0613 , G06F3/0656 , G06F3/0676 , G06F12/0866
摘要： A method and system are disclosed to prevent significant degradation of a data transfer rate in write cache transfer, thereby keeping the minimum data transfer rate high. The initial value Ti of the virtual buffer full capacity T(tx) is set to F/N (where F is a data capacity of the buffer, and N>1) and it is determined if the amount of write cached data S(tx) reaches the virtual buffer full capacity T(tx) so that write cache transfer is enabled during an S(tx)
摘要翻译：公开了一种方法和系统，以防止写入高速缓存传送中的数据传输速率的显着劣化，从而保持最小的数据传输速率。虚拟缓冲器满容量T（tx）的初始值Ti被设置为F / N（其中F是缓冲器的数据容量，N> 1），并且确定写入缓存数据量S（tx ）达到虚拟缓冲器满容量T（tx），使得在S（tx）

3. 发明授权

US06574065B1 Method and apparatus for adaptive resonance mode cancellation servo in a rotating storage system 失效
标题翻译：旋转存储系统中自适应共振模式消除伺服的方法和装置
公开(公告)号：US06574065B1
公开(公告)日：2003-06-03
申请号：US09311307
申请日：1999-05-14
申请人： Sri M. Sri-Jayantha , Arun Sharma , Hien Dang , Tetsuo Ueda , Kenji Okada , Hideo Asano , Tatsuya Endoh , Masayuki Takeuchi
发明人： Sri M. Sri-Jayantha , Arun Sharma , Hien Dang , Tetsuo Ueda , Kenji Okada , Hideo Asano , Tatsuya Endoh , Masayuki Takeuchi
IPC分类号： G11B2102
CPC分类号： G11B21/083 , G11B5/59605
摘要： A method and apparatus for adaptive resonance cancellation in a rotating storage system, includes designing a set of digitally selectable optimum resonance cancellation filters, generating a series of excitation signals for injection into the filters, generating a characteristic resonance frequency based on the excitation signals, and computing an address pointer corresponding to the resonance frequency, to select an optimum resonance cancellation filter.
摘要翻译：一种用于旋转存储系统中自适应共振消除的方法和装置，包括设计一组数字可选择的最佳共振消除滤波器，产生一系列用于注入滤波器的激励信号，基于激励信号产生特征谐振频率，以及计算对应于谐振频率的地址指针，以选择最佳谐振消除滤波器。

4. 发明授权

US06597530B2 Method and apparatus for disk drive seek control 失效
公开(公告)号：US06597530B2
公开(公告)日：2003-07-22
申请号：US09935272
申请日：2001-08-22
申请人： Hideo Asano , Kenji Okada , Tetsuo Ueda , Koichi Arai , Hideki Ohzeki
发明人： Hideo Asano , Kenji Okada , Tetsuo Ueda , Koichi Arai , Hideki Ohzeki
IPC分类号： G11B5596
CPC分类号： G11B5/5547
摘要： A disk drive seek control system device to reduce track pitch. When data is recorded, an offset value is added to the position of a read head element along the width of a track corresponding to an offset &Dgr;w between the read head element and a write head element. The value of the offset depends on the yaw angle &thgr; of the head. When data is read, the position of the read head element is chosen to be either the position of the write head element during write operations, or the midpoint between the position of the write head element and the read head element during write operations, or the center of a track.

5. 发明授权

US06441982B1 Dummy write method for a magnetic head and drive unit for carrying out the method 失效
标题翻译：用于执行该方法的磁头和驱动单元的虚拟写入方法
公开(公告)号：US06441982B1
公开(公告)日：2002-08-27
申请号：US09448234
申请日：1999-11-24
申请人： Yukio Fukushima , Tetsuo Ueda , Hideo Asano
发明人： Yukio Fukushima , Tetsuo Ueda , Hideo Asano
IPC分类号： G11B509
CPC分类号： G11B5/00 , G11B5/012 , G11B2005/0008 , G11B2005/0013 , G11B2005/0021
摘要： A drive unit which recovers from write instability by heating the magnetic head prior to performing a dummy write operation is described. In the preferred embodiments, once write instability has been detected the head may be heated by friction with the rotating disk or by an external heater. In the friction method the head is moved to a safe area of the disk such as a textured landing zone while the disk rotation is continued. In drives using unload ramps, a heater is preferably placed at the the ramp so that the head can be heated while parked on the ramp. In each of these embodiments dummy write operations are performed while the head is in a thermally excited state due to the heating. The combination of heating and the dummy write operation aids in restoring write stability.
摘要翻译：描述通过在执行虚拟写入操作之前加热磁头而从写入不稳定性恢复的驱动单元。在优选实施例中，一旦检测到写入不稳定性，头部可以通过与旋转盘的摩擦或外部加热器的摩擦来加热。在摩擦方法中，当盘旋转持续时，头移动到盘的安全区域，例如纹理着陆区。在使用卸载斜坡的驱动器中，优选地将加热器放置在斜坡处，使得头部可以在停放在斜坡上时被加热。在这些实施例的每一个中，由于加热，头部处于热激发状态时执行伪写入操作。加热和虚拟写入操作的组合有助于恢复写入稳定性。

6. 发明授权

US06476997B2 Disk device, track positioning method and method for generating a position error signal 失效
标题翻译：磁盘设备，轨道定位方法和产生位置误差信号的方法
公开(公告)号：US06476997B2
公开(公告)日：2002-11-05
申请号：US09120906
申请日：1998-07-22
申请人： Yukio Fukushima , Tetsuo Ueda , Toshio Kakihara , Hideo Asano
发明人： Yukio Fukushima , Tetsuo Ueda , Toshio Kakihara , Hideo Asano
IPC分类号： G11B5596
CPC分类号： G11B5/59627
摘要： A disk device, track positioning method, and method for generating a position error signal in which the occurrence of a wrong correction operation can be prevented by creating an appropriate PES without using a burst pattern having a defect, and reassign sectors can be decreased by decreasing defective sectors thereby to reduce the performance degradation is disclosed. In the disk device and track positioning method, the defect of a burst pattern read out from a disk is detected, and if a defect is detected in the burst pattern, a data value corresponding to the sum data of the burst pattern pair having the defect detected is obtained by measuring the maximum amplitude value of the burst pattern pairing with the burst pattern having the defect detected, and a PES is created according to the amplitude of the burst pattern having the defect detected and the maximum amplitude value.
摘要翻译：一种磁盘装置，轨道定位方法以及用于产生位置误差信号的方法，其中可以通过在不使用具有缺陷的脉冲串模式的情况下创建适当的PES来防止出现错误的校正操作，并且可以通过减少重新分配扇区来减少重新分配扇区缺陷扇区，从而降低性能下降。在盘装置和轨迹定位方法中，检测从盘读出的脉冲串模式的缺陷，并且如果在脉冲串模式中检测到缺陷，则与具有缺陷的脉冲串模式对的和数据相对应的数据值通过测量与检测到缺陷的脉冲串模式匹配的脉冲串模式的最大幅度值，并且根据具有检测到的缺陷的脉冲串模式的幅度和最大振幅值来创建PES来获得检测到的。

7. 发明授权

US06456451B1 Method and apparatus for disk drive seek control 失效
公开(公告)号：US06456451B1
公开(公告)日：2002-09-24
申请号：US09220419
申请日：1998-12-24
申请人： Hideo Asano , Kenji Okada , Tetsuo Ueda , Koichi Arai , Hideki Ohzeki
发明人： Hideo Asano , Kenji Okada , Tetsuo Ueda , Koichi Arai , Hideki Ohzeki
IPC分类号： G11B5596
CPC分类号： G11B5/5547
摘要： A disk drive seek control system device to reduce track pitch. When data is recorded, an offset value is added to the position of a read head element along the width of a track corresponding to an offset &Dgr;w between the read head element and a write head element. The value of the offset depends on the yaw angle &thgr; of the head. When data is read, the position of the read head element is chosen to be either the position of the write head element during write operations, or the midpoint between the position of the write head element and the read head element during write operations, or the center of a track.

8. 发明申请

US20070246829A1 Semiconductor device and method for producing the same 审中-公开
标题翻译：半导体装置及其制造方法
公开(公告)号：US20070246829A1
公开(公告)日：2007-10-25
申请号：US11820917
申请日：2007-06-21
申请人： Keiji Yamane , Tetsuo Ueda , Takashi Miyamoto , Isao Kidoguchi
发明人： Keiji Yamane , Tetsuo Ueda , Takashi Miyamoto , Isao Kidoguchi
IPC分类号： H01L23/52
CPC分类号： H01L24/83 , H01L24/29 , H01L2224/291 , H01L2224/29109 , H01L2224/29111 , H01L2224/29118 , H01L2224/29144 , H01L2224/29147 , H01L2224/8319 , H01L2224/838 , H01L2224/83805 , H01L2924/01006 , H01L2924/01024 , H01L2924/01029 , H01L2924/0103 , H01L2924/01033 , H01L2924/01042 , H01L2924/01047 , H01L2924/0105 , H01L2924/01078 , H01L2924/01079 , H01L2924/01082 , H01L2924/0132 , H01L2924/01322 , H01L2924/0133 , H01L2924/014 , H01L2924/10329 , H01L2924/12042 , H01L2924/1579 , H01L2924/351 , H01S5/0014 , H01S5/0224 , H01S5/02272 , H01S5/02476 , H01S5/0425 , H01S5/32341 , H01L2924/01014 , H01L2924/00 , H01L2924/01032 , H01L2924/01028 , H01L2924/01049 , H01L2924/01051 , H01L2924/00014 , H01L2924/00012
摘要： A method for producing a semiconductor device of the present invention includes forming a surface electrode on a semiconductor element, forming a solder layer by plating on one principal surface of the surface electrode, mounting the semiconductor element on the sub-mount so that the solder layer contacts a principal surface of the sub-mount, and bonding the sub-mount and the semiconductor element to each other via the solder layer.
摘要翻译：本发明的半导体装置的制造方法包括在半导体元件上形成表面电极，通过电镀在所述表面电极的一个主面上形成焊料层，将所述半导体元件安装在所述副安装座上，使得所述焊料层接触子座的主表面，并且通过焊料层将子座和半导体元件彼此接合。

9. 发明授权

US07271976B2 Magnetic disk drive and method for seek operations with reduced noise 有权
标题翻译：磁盘驱动器和噪声减小的寻道操作方法
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。

10. 发明授权

US07142576B2 Semiconductor laser 有权
标题翻译：半导体激光器
公开(公告)号：US07142576B2
公开(公告)日：2006-11-28
申请号：US11198089
申请日：2005-08-05
申请人： Tetsuo Ueda , Keiji Yamane , Isao Kidoguchi , Shoji Fujimori
发明人： Tetsuo Ueda , Keiji Yamane , Isao Kidoguchi , Shoji Fujimori
IPC分类号： H01S5/00
CPC分类号： H01S5/028
摘要： A semiconductor laser includes an active layer formed on a substrate and a pair of cladding layers sandwiching the active layer. On at least one of resonator end faces of the semiconductor laser, a first dielectric film with hydrogen added therein is provided. Between the first dielectric film and the resonator end face, a second dielectric film for suppressing the diffusion of hydrogen is provided. Even when a semiconductor laser with an end face coating film including a hydrogen-added film is exposed to high temperatures, peeling of the end face coating film and deterioration of the end face coating film can be suppressed.
摘要翻译：半导体激光器包括形成在基板上的有源层和夹着有源层的一对包覆层。在半导体激光器的至少一个谐振器端面上，提供了其中添加有氢的第一电介质膜。在第一电介质膜和谐振器端面之间，提供了用于抑制氢的扩散的第二电介质膜。即使当具有包含加氢膜的端面涂膜的半导体激光器暴露于高温时，也可以抑制端面涂膜的剥离和端面涂膜的劣化。

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