公开(公告)号：US20050061954A1

公开(公告)日：2005-03-24

申请号：US10928087

申请日：2004-08-30

申请人： Hiroaki Itoh ,  Naruichi Yokogawa ,  Takao Matsui

发明人： Hiroaki Itoh ,  Naruichi Yokogawa ,  Takao Matsui

IPC分类号： H03F3/08 ,  H01J40/14 ,  H01L31/00 ,  H03F1/26 ,  H03G3/20 ,  H03G3/30 ,  H04B10/11 ,  H04B10/112 ,  H04B10/2507 ,  H04B10/40 ,  H04B10/50 ,  H04B10/60

CPC分类号： H03F3/08

摘要： An amplifier circuit AMP1 amplifies the difference between an output voltage from a current voltage conversion circuit 1 and a bias voltage. The current voltage conversion circuit 1 converts a photocurrent of a photodiode PD which detect incoming light into a voltage. A gm-amp AMP2 charges or discharges a capacity C1 by a current corresponding to the difference between the output voltage from the amplifier circuit AMP1 and a reference voltage V3. A field effect transistor M3 supplies a drain current, which is controlled by voltages at the respective terminals of the capacity C1, to the photodiode PD, in order to prevent the output voltage of the amplifier circuit AMP1 from being varied due to the influence of a DC photocurrent flowing in the photodiode PD. The gate of a field effect transistor M1 which is connected in parallel to a current voltage conversion resistor R1 has an identical voltage with the gate of the field effect transistor M3. On this account, as the DC photocurrent increases, the resistance decreases and the current voltage conversion resistor value decreases, and hence a noise voltage caused by shot noise decreases. As a result, the malfunction due to the shot noise generated in the photodiode is prevented.

摘要翻译： 放大电路AMP1放大来自电流电压转换电路1的输出电压与偏置电压之间的差。 当前的电压转换电路1将检测入射光的光电二极管PD的光电流转换为电压。 放大器AMP2通过对应于来自放大器电路AMP1的输出电压与参考电压V3之间的差的电流对电容C1进行充电或放电。 场效应晶体管M3将由电容C1的各个端子处的电压控制的漏极电流提供给光电二极管PD，以防止放大器电路AMP1的输出电压由于a的影响而变化 DC光电流在光电二极管PD中流动。 与电流电压转换电阻R1并联连接的场效应晶体管M1的栅极与场效应晶体管M3的栅极具有相同的电压。 因此，随着直流光电流的增加，电阻降低，电流转换电阻值减小，因此引起的噪声电压降低。 结果，防止了由光电二极管中产生的散粒噪声引起的故障。

公开(公告)号：US07157684B2

公开(公告)日：2007-01-02

申请号：US10928087

申请日：2004-08-30

申请人： Hiroaki Itoh ,  Naruichi Yokogawa ,  Takao Matsui

发明人： Hiroaki Itoh ,  Naruichi Yokogawa ,  Takao Matsui

IPC分类号： G01J1/44 ,  H03F3/08 ,  H04B10/06

CPC分类号： H03F3/08

摘要： An amplifier circuit amplifies the difference between an output voltage from a current voltage conversion circuit and a bias voltage. The current voltage conversion circuit converts a photocurrent of a photodiode which detect incoming light into a voltage. A gm-amp charges or discharges a capacity by a current corresponding to the difference between the output voltage from the amplifier circuit and a reference voltage. A field effect transistor supplies a drain current, which is controlled by voltages at the respective terminals of the capacity, to the photodiode, in order to prevent the output voltage of the amplifier circuit from being varied due to the influence of a DC photocurrent flowing in the photodiode. The gate of a field effect transistor, which is connected in parallel to a current voltage conversion resistor, has an identical voltage with the gate of the field effect transistor.

摘要翻译： 放大器电路放大来自电流电压转换电路的输出电压和偏置电压之间的差。 当前的电压转换电路将检测入射光的光电二极管的光电流转换成电压。 gm放大器通过与放大器电路的输出电压和参考电压之间的差相对应的电流对容量进行充电或放电。 场效应晶体管将由电容的各个端子处的电压控制的漏极电流提供给光电二极管，以便防止由于直流光电流流入的放大器电路的输出电压而变化 光电二极管。 与电流电压转换电阻并联连接的场效应晶体管的栅极与场效应晶体管的栅极具有相同的电压。

公开(公告)号：US08048527B2

公开(公告)日：2011-11-01

申请号：US10526350

申请日：2003-09-03

申请人： Yoshiaki Hirose ,  Takao Matsui

发明人： Yoshiaki Hirose ,  Takao Matsui

IPC分类号： B32B9/00

CPC分类号： C04B41/009 ,  C01B32/20 ,  C04B35/536 ,  C04B35/62218 ,  C04B41/5092 ,  C04B41/85 ,  C04B2235/608 ,  C04B2235/77 ,  C04B2235/9684 ,  Y10T428/30 ,  C04B41/5058

摘要： A formed exfoliated graphite article which comprises an oxidation-resistant coating layer formed at least in the surface layer portion thereof, preferably wherein the oxidation-resistant coating layer contains a boron element and a phosphorus element, the content of a boron element in the oxidation-resistant coating layer is 1 mass % or more, the content of a phosphorus in the oxidation-resistant coating layer is 0.1 mass % or more, and the oxidation-resistant coating layer is formed in a thickness of 0.5 μm or more.

摘要翻译： 一种形成的剥离石墨制品，其至少在其表层部分形成有抗氧化涂层，优选地，其中抗氧化涂层含有硼元素和磷元素，氧化 - 耐酸性涂层为1质量％以上，耐氧化性涂层中的磷含量为0.1质量％以上，耐氧化性涂层形成为0.5μm以上。

公开(公告)号：US07852594B2

公开(公告)日：2010-12-14

申请号：US12156092

申请日：2008-05-28

申请人： Yoshihiko Maeda ,  Takao Matsui ,  Nobuhiro Kuwamura ,  Kenichi Kuramoto ,  Akihiro Sera

发明人： Yoshihiko Maeda ,  Takao Matsui ,  Nobuhiro Kuwamura ,  Kenichi Kuramoto ,  Akihiro Sera

IPC分类号： G11B21/02

CPC分类号： G11B5/6064 ,  G11B5/607

摘要： Embodiments of the present invention help to detect contact between a head and a magnetic disk more accurately in specifying a heater power value for adjusting a clearance between a head element portion and the disk. According to one embodiment, a hard disk controller/multiprocessing unit (HDC/MPU) measures amplitudes of read signals in a user data field DATA. A hard disk drive (HDD) fills a gap between servo data with single data sector. The HDC/MPU measures the amplitudes of read signals in each data sector at different heater power values. It determines the heater power value at which contact occurs from the measured values.

摘要翻译： 本发明的实施例有助于在确定用于调节头元件部分和盘之间的间隙的加热器功率值时更准确地检测磁头和磁盘之间的接触。 根据一个实施例，硬盘控制器/多处理单元（HDC / MPU）测量用户数据字段DATA中的读取信号的幅度。 硬盘驱动器（HDD）填充伺服数据与单个数据扇区之间的间隙。 HDC / MPU以不同的加热器功率值测量每个数据扇区中读取信号的幅度。 它从测量值确定接触发生的加热器功率值。

公开(公告)号：US20070263310A1

公开(公告)日：2007-11-15

申请号：US11796134

申请日：2007-04-25

申请人： Masaomi Ikeda ,  Takao Matsui ,  Masahiko Koizumi ,  Masato Taniguchi ,  Kohji Nakao ,  Hideaki Maeda

发明人： Masaomi Ikeda ,  Takao Matsui ,  Masahiko Koizumi ,  Masato Taniguchi ,  Kohji Nakao ,  Hideaki Maeda

IPC分类号： G11B20/10

CPC分类号： G11B20/10009 ,  G11B20/10027 ,  G11B20/10046 ,  G11B20/10481 ,  G11B20/18 ,  G11B20/1833 ,  G11B27/36 ,  G11B2005/0016 ,  G11B2020/1863 ,  G11B2220/2516

摘要： Embodiments in accordance with the present invention provide a magnetic disk drive capable of achieving error recovery stably in a simple configuration in the event of thermal asperity (TA) and minimizing the error recovery time required, and a method for controlling the disk drive. According to one embodiment, if TA occurs, a cutoff frequency of a high-pass filter to which a data read signal is input is first increased and a loop gain of a low-order finite impulse response (FIR) filter connected in series to an FIR filter is also increased as high as possible. Next, a Viterbi decoder to which a signal is input from the low-order FIR filter provides feedback to the low-order FIR filter so that an input signal error becomes a minimum. Tap coefficients of the low-order FIR filter are thus optimized.

摘要翻译： 根据本发明的实施例提供一种磁盘驱动器，其能够在热不均匀（TA）的情况下以简单的配置稳定地实现误差恢复，并且使所需的错误恢复时间最小化，以及控制盘驱动器的方法。 根据一个实施例，如果发生TA，则首先增加输入数据读取信号的高通滤波器的截止频率，并将低阶有限脉冲响应（FIR）滤波器的环路增益串联连接到 FIR滤波器也尽可能高地增加。 接下来，从低阶FIR滤波器输入信号的维特比解码器向低阶FIR滤波器提供反馈，使得输入信号误差变得最小。 因此优化了低阶FIR滤波器的抽头系数。

公开(公告)号：US20060117140A1

公开(公告)日：2006-06-01

申请号：US11066760

申请日：2005-02-28

申请人： Takao Matsui ,  Seishi Okada ,  Daisuke Itoh ,  Makoto Hataida ,  Toshikazu Ueki

发明人： Takao Matsui ,  Seishi Okada ,  Daisuke Itoh ,  Makoto Hataida ,  Toshikazu Ueki

IPC分类号： G06F12/00

CPC分类号： G06F12/0822

摘要： Address information of target data is stored in an ELA register at the start of a cache excluding process performed by BackEviction, and a request processing unit continuously re-executes a data acquiring process while an address of data requested to be acquired by a processor is present in the ELA register. The address information of the target data is stored in an EWB buffer at the start of autonomous move-out performed by a processor, and the cache excluding process performed by BackEviction is stopped when the address of data subjected to BackEviction is present in the EWB buffer.

摘要翻译： 目标数据的地址信息在由BackEviction执行的高速缓存排除处理开始时存储在ELA寄存器中，并且请求处理单元连续重新执行数据获取处理，同时存在由处理器请求获取的数据的地址 在ELA寄存器中。 目标数据的地址信息在由处理器执行的自主移出开始时被存储在EWB缓冲器中，并且当经过BackEviction的数据的地址存在于EWB缓冲器中时，停止由BackEviction执行的高速缓存排除处理 。

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。

公开(公告)号：US4669688A

公开(公告)日：1987-06-02

申请号：US803980

申请日：1985-12-03

申请人： Kenkichi Itoh ,  Takao Matsui ,  Toshio Murakami

发明人： Kenkichi Itoh ,  Takao Matsui ,  Toshio Murakami

IPC分类号： H05K7/00 ,  F16L3/12 ,  F16L3/23 ,  H02G3/30 ,  F16L3/08

CPC分类号： H02G3/30 ,  F16L3/23 ,  Y10T24/1498 ,  Y10T24/309 ,  Y10T24/44752

摘要： A cable clamp of the present invention comprises a base having a fixing portion on the lower surface, a flat clamp rockingly connected to the base, and a means for locking a distal end of the flat clamp to the base engageably or disengageably. The cable clamp retains electric wires between the base and the flat clamp. The locking member comprises a plate-shaped protrusion provided on the flat clamp or the base and a retaining protrusion formed with the outer surface thereof. A resilient retaining member is protrudingly provided on the flat clamp opposite the plate-shaped protrusion or the base and has a hole for engaging with the retaining protrusion. An engaging member is protrudingly provided on the same surface with the resilient retaining member in parallel and engaging with an inner surface of the plate-shaped protrusion. Further, a notched portion formed with a distal end of the resilient retaining member faces the engaging member. Therefore, the cable clamp can easily carry out unlocking without any unlock levers and offers not only a simple but a secure locking mechanism.

摘要翻译： 本发明的电缆夹具包括在下表面上具有固定部分的基座，与基座摇摆地连接的平板夹具，以及用于将扁平夹具的远端可啮合地或可分离地锁定到基座的装置。 电缆夹在基座和平夹之间保持电线。 锁定构件包括设置在扁平夹具或基座上的板状突起和形成有其外表面的保持突起。 弹性保持构件突出地设置在与板状突起或基座相对的平坦夹具上，并且具有用于与保持突起接合的孔。 接合构件与弹性保持构件平行地突出地设置在同一表面上并与板状突起的内表面接合。 此外，形成有弹性保持构件的远端的切口部分面向接合构件。 因此，电缆夹可以轻松地进行解锁而无需任何解锁杆，并且不仅提供简单而又安全的锁定机构。

公开(公告)号：US08548706B2

公开(公告)日：2013-10-01

申请号：US12051692

申请日：2008-03-19

申请人： Takami Miura ,  Kaoru Sawase ,  Takao Matsui ,  Yuichi Ushiroda ,  Naoki Takahashi ,  Keiji Suzuki

发明人： Takami Miura ,  Kaoru Sawase ,  Takao Matsui ,  Yuichi Ushiroda ,  Naoki Takahashi ,  Keiji Suzuki

IPC分类号： B60T8/1755

CPC分类号： B60T8/1755 ,  B60T8/246 ,  B60T8/322 ,  B60T2201/14 ,  B60T2270/303 ,  B60W10/04 ,  B60W10/12 ,  B60W10/18 ,  B60W30/045

摘要： A device operable to control a turning of a vehicle, includes: a motion controller operable to: control a first adjuster so as to increase a drive force applied to at least one of front wheels and rear wheels situated in an inner side of the turning, and control a second adjuster so as to increase the braking force applied to at least one of the front wheels and the rear wheels situated in an outer side of the turning; and control the first adjuster so as to increase the drive force applied to at least one of the front wheels and the rear wheels situated in an outer side of the turning, and control the second adjuster so as to increase the braking force applied to at least one of the front wheels and the rear wheels situated in an inner side of the turning.

摘要翻译： 一种可操作以控制车辆转向的装置，包括：运动控制器，其可操作以：控制第一调节器，以便增加施加到位于车削内侧的前轮和后轮中的至少一个的驱动力， 并且控制第二调节器，以便增加施加到位于转弯外侧的前轮和后轮中的至少一个的制动力; 并且控制第一调节器以增加施加到位于转向外侧的前轮和后轮中的至少一个的驱动力，并且控制第二调节器，以便增加至少施加的制动力 前轮和后轮中的一个位于车削的内侧。

公开(公告)号：US20110072216A1

公开(公告)日：2011-03-24

申请号：US12926390

申请日：2010-11-15

申请人： Takao Matsui ,  Seishi Okada ,  Daisuke Itoh ,  Makoto Hataida ,  Toshikazu Ueki

发明人： Takao Matsui ,  Seishi Okada ,  Daisuke Itoh ,  Makoto Hataida ,  Toshikazu Ueki

IPC分类号： G06F12/08

CPC分类号： G06F12/0822

摘要： Address information of target data is stored in an ELA register at the start of a cache excluding process performed by BackEviction, and a request processing unit continuously re-executes a data acquiring process while an address of data requested to be acquired by a processor is present in the ELA register. The address information of the target data is stored in an EWB buffer at the start of autonomous move-out performed by a processor, and the cache excluding process performed by BackEviction is stopped when the address of data subjected to BackEviction is present in the EWB buffer.

摘要翻译： 目标数据的地址信息在由BackEviction执行的高速缓存排除处理开始时存储在ELA寄存器中，并且请求处理单元连续重新执行数据获取处理，同时存在由处理器请求获取的数据的地址 在ELA寄存器中。 目标数据的地址信息在由处理器执行的自主移出开始时被存储在EWB缓冲器中，并且当经过BackEviction的数据的地址存在于EWB缓冲器中时，停止由BackEviction执行的高速缓存排除处理 。