公开(公告)号：US07675701B2

公开(公告)日：2010-03-09

申请号：US11600593

申请日：2006-11-15

申请人： Hideki Ohzeki ,  Noboru Yoshida ,  Kazuyuki Ishibashi ,  Tetsuo Ueda ,  Isao Yoneda ,  Toshiaki Wada

发明人： Hideki Ohzeki ,  Noboru Yoshida ,  Kazuyuki Ishibashi ,  Tetsuo Ueda ,  Isao Yoneda ,  Toshiaki Wada

IPC分类号： G11B5/09

CPC分类号： G11B5/59688

摘要： Detection capability of a servo timing mark (STM) is improved. Long STM is configured by pseudo-STM forming part of an AGC/PLL pattern and intrinsic STM. When a system can not recognize the intrinsic STM, it keeps a state that a sector detection window is opened, and is operated in a long STM detection mode to recognize the long STM, thereby generates an STM detection signal. After the STM detection signal has been generated, an STM detection window is closed, and the system is operated in an intrinsic STM detection mode. Since the long STM has longer bit length than the intrinsic STM, it has high discriminating power with respect to other bit patterns. Therefore, even if the sector detection window is remained to be in an opened state, bit strings of data sector, address information in a servo sector or the like is not falsely recognized.

摘要翻译： 提高伺服定时标志（STM）的检测能力。 长STM由构成AGC / PLL模式和固有STM的一部分的伪STM构成。 当系统不能识别本征STM时，它保持扇区检测窗口打开的状态，并且以长STM检测模式操作以识别长STM，从而生成STM检测信号。 在产生STM检测信号之后，关闭STM检测窗口，并以本征STM检测模式操作系统。 由于长的STM具有比固有的STM更长的位长度，所以它对于其他位模式具有很高的识别能力。 因此，即使扇区检测窗口保持为打开状态，也不会错误地识别数据扇区的位串，伺服扇区中的地址信息等。

公开(公告)号：US07561365B2

公开(公告)日：2009-07-14

申请号：US11527899

申请日：2006-09-26

申请人： Masaaki Noguchi ,  Tetsuo Ueda ,  Gaku Ikedo ,  Mirei Hosono

发明人： Masaaki Noguchi ,  Tetsuo Ueda ,  Gaku Ikedo ,  Mirei Hosono

IPC分类号： G11B21/02

CPC分类号： G11B5/59694 ,  G11B5/5582

摘要： Embodiments of the present invention provide a disk drive capable of reducing, by means of simple control, vibrations applied to the drive and vibrations occurring in the drive, and a control method for controlling the disk drive. In one embodiment, a servo system comprises a sensor unit for detecting vibrations, a correction signal generator for, when the sensor unit detects vibrations, generating a correction signal, a position error signal generator for generating a PES signal on the basis of servo data read out from a disk and a target position, a servo controller for generating a servo control signal for controlling a position of a head on the basis of the PES signal, and a servo controller for generating a driving signal on the basis of the correction signal and the servo control signal. The correction signal generator includes a plurality of filters, each of which eliminates vibrations in each different frequency band, the correction signal generator selecting one or two or more RV-FF filters when vibrations are detected, and then generating a correction signal so as to reduce a position error indicated by the PES signal.

摘要翻译： 本发明的实施例提供一种能够通过简单的控制来减少施加在驱动器上的振动和驱动中发生的振动的磁盘驱动器，以及用于控制磁盘驱动器的控制方法。 在一个实施例中，伺服系统包括用于检测振动的传感器单元，当传感器单元检测振动时产生校正信号的校正信号发生器，用于根据伺服数据读取产生PES信号的位置误差信号发生器 从盘和目标位置出来的伺服控制器，用于产生用于根据PES信号控制头的位置的伺服控制信号的伺服控制器，以及用于基于校正信号产生驱动信号的伺服控制器，以及 伺服控制信号。 校正信号发生器包括多个滤波器，每个滤波器消除每个不同频带的振动，校正信号发生器在检测到振动时选择一个或两个或更多个RV-FF滤波器，然后产生校正信号以便减少 由PES信号指示的位置误差。

公开(公告)号：US20070146919A1

公开(公告)日：2007-06-28

申请号：US11600593

申请日：2006-11-15

申请人： Hideki Ohzeki ,  Noboru Yoshida ,  Kazuyuki Ishibashi ,  Tetsuo Ueda ,  Isao Yoneda ,  Toshiaki Wada

发明人： Hideki Ohzeki ,  Noboru Yoshida ,  Kazuyuki Ishibashi ,  Tetsuo Ueda ,  Isao Yoneda ,  Toshiaki Wada

IPC分类号： G11B5/09 ,  G11B20/10

CPC分类号： G11B5/59688

摘要： Detection capability of a servo timing mark (STM) is improved. Long STM is configured by pseudo-STM forming part of an AGC/PLL pattern and intrinsic STM. When a system can not recognize the intrinsic STM, it keeps a state that a sector detection window is opened, and is operated in a long STM detection mode to recognize the long STM, thereby generates an STM detection signal. After the STM detection signal has been generated, an STM detection window is closed, and the system is operated in an intrinsic STM detection mode. Since the long STM has longer bit length than the intrinsic STM, it has high discriminating power with respect to other bit patterns. Therefore, even if the sector detection window is remained to be in an opened state, bit strings of data sector, address information in a servo sector or the like is not falsely recognized.

摘要翻译： 提高伺服定时标志（STM）的检测能力。 长STM由构成AGC / PLL模式和固有STM的一部分的伪STM构成。 当系统不能识别本征STM时，它保持扇区检测窗口打开的状态，并且以长STM检测模式操作以识别长STM，从而生成STM检测信号。 在产生STM检测信号之后，关闭STM检测窗口，并以本征STM检测模式操作系统。 由于长的STM具有比固有的STM更长的位长度，所以它对于其他位模式具有很高的识别能力。 因此，即使扇区检测窗口保持为打开状态，也不会错误地识别数据扇区的位串，伺服扇区中的地址信息等。

公开(公告)号：US07209311B2

公开(公告)日：2007-04-24

申请号：US11063487

申请日：2005-02-22

申请人： Tetsuo Ueda ,  Isao Yoneda ,  Hideki Ohzeki ,  Naoyuki Minami

发明人： Tetsuo Ueda ,  Isao Yoneda ,  Hideki Ohzeki ,  Naoyuki Minami

IPC分类号： G11B5/596

CPC分类号： G11B5/596

摘要： Embodiments of the invention provide control of a disk data storage device to prevent off-track writing. In one embodiment, the SA acquires the CYLIDs and ADC Values generated from the SERVO SIGNALs acquired previously, and generates DACOUT which defines a driving current of the VCM driver. The SA monitors the DACOUT generated and determines whether the DACOUT is within a predefined range. If the DACOUT is outside the predefined range, data writing is inhibited. By monitoring the DACOUT, it is possible for the VCM driver to detect supply of an overcurrent to the VCM driver 210 beforehand, and off-track writing can thus be prevented.

摘要翻译： 本发明的实施例提供了一种磁盘数据存储设备的控制以防止偏离写入。 在一个实施例中，SA获取从先前获得的SERVO信号产生的CYLID和ADC值，并产生定义VCM驱动器的驱动电流的DACOUT。 SA监视生成的DACOUT，并确定DACOUT是否在预定义的范围内。 如果DACOUT超出预定范围，则禁止数据写入。 通过监视DACOUT，VCM驱动器可以预先检测到VCM驱动器210的过电流供应，从而可以防止偏离写入。

公开(公告)号：US20060176921A1

公开(公告)日：2006-08-10

申请号：US11335828

申请日：2006-01-20

申请人： Tetsuo Ueda ,  Masahiro Kume ,  Toshiya Kawata ,  Isao Kidoguchi

发明人： Tetsuo Ueda ,  Masahiro Kume ,  Toshiya Kawata ,  Isao Kidoguchi

IPC分类号： H01S5/00

CPC分类号： B82Y20/00 ,  H01S5/162 ,  H01S5/168 ,  H01S5/221 ,  H01S5/2231 ,  H01S5/305 ,  H01S5/3054 ,  H01S5/32341 ,  H01S5/34326 ,  H01S5/3436 ,  H01S5/4031 ,  H01S5/4087 ,  H01S2301/185

摘要： To provide a semiconductor laser device for which a horizontal divergence angle of a laser beam can be improved independently of optimization of other properties such as a cladding layer thickness and a current injected region size. A current blocking layer covers a larger area of a p-type second cladding layer and p-type cap layer extending in a resonator length direction, on a light emitting end face side than on an opposite end face side. Thus, current uninjected regions are formed in an optical waveguide. The current blocking layer (current uninjected region) on the light emitting end face side is set long enough to prevent carriers, which flow in from a current injected region, from reaching alight emitting end face. In this way, a light intensity distribution of a near-field pattern on the light emitting end face is concentrated, thereby increasing a horizontal divergence angle of a laser beam.

摘要翻译： 提供一种半导体激光器件，其可以独立于诸如包层厚度和电流注入区域尺寸等其他性能的优化而提高激光束的水平发散角。 电流阻挡层覆盖在发光端面侧上比在相对端面侧上在谐振器长度方向上延伸的p型第二覆层和p型覆盖层的较大面积。 因此，在光波导中形成电流未被注入的区域。 发光端面侧的电流阻挡层（电流未注入区）被设定得足够长以防止从电流注入区流入的载流子到达发光端面。 以这种方式，发光端面上的近场图案的光强度分布集中，从而增加激光束的水平发散角。

公开(公告)号：US20050285135A1

公开(公告)日：2005-12-29

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： H01S5/028 ,  H01L29/22 ,  H01L21/00 ,  H01L21/84 ,  H01L33/00

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。

公开(公告)号：US06496315B1

公开(公告)日：2002-12-17

申请号：US09448233

申请日：1999-11-24

申请人： Tetsuo Ueda ,  Yukio Fukushima ,  Tatsuya Sakai

发明人： Tetsuo Ueda ,  Yukio Fukushima ,  Tatsuya Sakai

IPC分类号： G11B1504

CPC分类号： G11B5/59627 ,  G11B5/59688

摘要： A disk drive with the capability to prevent off-track writing with reduced false triggering is described. An improved method of predicting the position of a head is used to determine whether the head is on or off-track. A position error signal at an nth servo position Pn and a velocity Vn at the nth servo position (Vn=Pn−Pn−1) are calculated using values read at the nth and n−1 head positions. Based on these Pn and Vn and on the output of the servo controller at the nth servo position Un, the predicted PESn+1 is calculated as: Predicted PESn+1=Pn+Vn+kUn where k is a constant. Data is inhibited from being written between the nth servo position and the (n+1) servo position, when absolute values of the calculated Pn, Vn, and predicted PESn+1 meet any condition of the following conditions (1) through (3): (1) |Pn|>C1, (2) |Vn|>C2, and (3) |Predicted PESn+1>C3 where C1, C2, and C3 are constants determined for the embodiment.

摘要翻译： 描述了一种能够以减少错误触发来防止偏离写入的能力的磁盘驱动器。 使用预测头部位置的改进方法来确定头部是开启还是离开轨迹。 使用在第n和第n-1个头部位置读取的值来计算第n个伺服位置Pn处的位置误差信号和第n个伺服位置处的速度Vn（Vn = Pn-Pn-1）。 基于这些Pn和Vn以及在第n个伺服位置Un处的伺服控制器的输出，预测的PESn + 1被计算为：其中k是常数。禁止数据写入第n个伺服位置和（ n + 1）伺服位置，当计算的Pn，Vn和预测的PESn + 1的绝对值满足以下条件（1）至（3）的任何条件时：（1）| Pn |> C1，（2）| Vn |> C2和（3）|预测的PESn + 1> C3，其中C1，C2和C3是为实施例确定的常数。

公开(公告)号：US06339512B1

公开(公告)日：2002-01-15

申请号：US09276211

申请日：1999-03-25

申请人： S. M. Sri-Jayantha ,  Hien Dang ,  Arun Sharma ,  Kiyoshi Satoh ,  Tetsuo Ueda ,  Hideki Ohzeki ,  Nayouki Kagami ,  Kiochi Takeuchi

发明人： S. M. Sri-Jayantha ,  Hien Dang ,  Arun Sharma ,  Kiyoshi Satoh ,  Tetsuo Ueda ,  Hideki Ohzeki ,  Nayouki Kagami ,  Kiochi Takeuchi

IPC分类号： G11B5596

CPC分类号： G11B5/6005 ,  G11B5/59627 ,  G11B21/21

摘要： A hard disk has a servo loop and a rotating storage medium. The rotating storage medium has one or more significant flutter modes at frequencies below a zero cross frequency of a rejection transfer function of the servo loop. The effect of the forgoing is to allow the servo loop to better track a rotating medium that is subject to significant flutter. Peak filters with frequency bands that substantially overlap frequency bands of the significant flutter modes can also be added to the servo loop to further improve tracking. Multiple narrow band filters with frequency bands overlap can be used to cover the spectrum of a single flutter mode. Two lag-lead filters, the frequency responses of which overlap can be used to cover two adjacent significant flutter modes. At frequencies intermediate to the two adjacent flutter, modes, the lead caused by one filter, will be cancelled by the lag caused by the second.

摘要翻译： 硬盘具有伺服回路和旋转存储介质。 旋转存储介质在低于伺服环路的拒绝传递函数的零交叉频率的频率下具有一个或多个显着颤振模式。 上述的效果是允许伺服回路更好地跟踪受到显着颤动的旋转介质。 具有基本上与重要抖动模式的频带重叠的频带的峰值滤波器也可以被添加到伺服环路中以进一步改善跟踪。 具有频带重叠的多个窄带滤波器可以用于覆盖单个颤振模式的频谱。 两个滞后引线滤波器，其重叠的频率响应可用于覆盖两个相邻的显着颤振模式。 在两个相邻颤振之间的频率中，模式，由一个滤波器引起的引线将被第二个引起的滞后所抵消。

公开(公告)号：US5817284A

公开(公告)日：1998-10-06

申请号：US738588

申请日：1996-10-29

申请人： Hisaji Nakano ,  Nobuhiko Matsuoka ,  Tetsuo Ueda ,  Shinsuke Nakagawa

发明人： Hisaji Nakano ,  Nobuhiko Matsuoka ,  Tetsuo Ueda ,  Shinsuke Nakagawa

IPC分类号： B01D53/68 ,  B01D53/70

CPC分类号： B01D53/70 ,  B01D53/68 ,  B01D2251/306 ,  B01D2251/604 ,  Y02C20/30

摘要： The present invention relates to a method for decomposing any of chlorocarbons, chlorofluorocarbons, perfluorocarbons and SF.sub.6 contained in a gas. This method includes the step of bringing the gas into contact, at a temperature of at least 300.degree. C., with a first mixture consisting essentially of 0.05-40 wt % of potassium hydroxide and at least one compound selected from the group consisting of alkali-earth-metal oxides and alkali-earth-metal hydroxides, for decomposing the at least one halide compound. When the halide compound-containing gas further contains oxygen, this gas may be brought into contact, at a temperature of at least 500.degree. C., with at least one first substance selected from the group consisting of active carbon, iron powder and nickel powder, for removing the oxygen from the gas, prior to the halide compound decomposition. When the halide compound-containing gas still further contains a strong oxidizing gas (e.g., fluorine), this gas may be brought into contact, at a temperature of at least 300.degree. C., with at least one second substance selected from the group consisting of Si, Ti, Ge, W, Mo, Fe, Mn, Co, Zn, Sn, B, Zr and compounds of these elements, except oxides of these elements, such that the oxidizing gas turns into a compound that is not reactive with the at least one first substance. According to this method, it is possible to decompose halide compounds contained within a gas, using a smaller equipment, at a lower temperature, as compared with conventional methods.

摘要翻译： 本发明涉及分解气体中所含的氯碳烃，氯氟烃，全氟化碳和SF 6中的任何一种的方法。 该方法包括在至少300℃的温度下使气体与基本上由0.05-40重量％的氢氧化钾和至少一种选自碱金属的化合物组成的第一混合物接触的步骤 - 金属氧化物和碱土金属氢氧化物，用于分解至少一种卤化物。 当含卤化物的气体还含有氧气时，该气体可以在至少500℃的温度下与至少一种选自活性炭，铁粉和镍粉末的第一物质接触 用于在卤化物分解之前从气体中除去氧气。 当含卤化物的气体还含有强氧化气体（例如氟）时，该气体可以在至少300℃的温度下与至少一种选自以下的第二物质接触： Si，Ti，Ge，W，Mo，Fe，Mn，Co，Zn，Sn，B，Zr和这些元素的化合物，除了这些元素的氧化物以外，使得氧化气体变成与 所述至少一种第一物质。 根据该方法，与常规方法相比，可以使用较小的设备在较低温度下分解包含在气体中的卤化物化合物。

公开(公告)号：US4005743A

公开(公告)日：1977-02-01

申请号：US626558

申请日：1975-10-28

申请人： Tetsuo Ueda

发明人： Tetsuo Ueda

IPC分类号： B22D35/00 ,  B22D11/10 ,  B22D11/103 ,  B22D41/50 ,  B22D11/16

CPC分类号： B22D41/50

摘要： A method of, and apparatus for, the continuous casting of molten metals, especially steel, wherein the molten metal is delivered through the agency of a multiplicity of pouring tubes having outlet or discharge openings inclined at a predetermined angle to the horizontal into the molten metal bath contained within a continuous casting mold. A deflecting wall or baffle means between the pouring tubes controls the flow of the molten metal in the mold.The method of continuously casting molten metal contemplates providing baffle means between a plurality of oppositely situated pouring tubes immersed in the molten metal bath of the continuous casting mold, feeding the molten metal through the pouring tubes in the form of casting jets entering the continuous casting mold through outlet openings of the pouring tubes, and directing the outflowing metal casting jets so as to impact against the baffle means in order to control the flow of metal in the continuous casting mold.

摘要翻译： 一种用于连续铸造熔融金属，特别是钢的方法和设备，其中熔融金属通过多个倾倒管的输送而被输送，所述浇注管具有以与水平面成预定角度倾斜的熔融金属的出口或排放口 包含在连续铸模中的浴。 浇注管之间的偏转壁或挡板装置控制模具中熔融金属的流动。