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公开(公告)号：US5628571A
公开(公告)日：1997-05-13
申请号：US528976
申请日：1995-09-15
申请人： Mutsuro Ohta , Kohji Takahashi , Shingo Tsuda
发明人： Mutsuro Ohta , Kohji Takahashi , Shingo Tsuda
CPC分类号： F16C25/083 , G11B19/2009 , F16C2370/12
摘要： A bearing structure used in a pivot bearing for freely supporting the rotation of a head arm of a hard disk drive (HDD). The bearing structure includes an inner shaft, an outer sleeve, a pair of roller bearings axially spaced and interposed between the inner shaft and the outer sleeve, and a preload spring for exerting a preload on the roller bearings. The roller bearings may be provided with an outer race that is attached to the outer sleeve. Nevertheless, the coefficients of linear expansion of the inner shaft and the outer sleeve are chosen so that they are different in an axial direction. Accordingly, the coefficients of linear expansion of the inner shaft and the outer sleeve are chosen so that the rotation torque derived from the preload becomes higher as the temperature rises and lower as the temperature falls. However, the rotational torque becomes lower as the temperature of a lubricant rises and higher as the lubricant temperature falls. Thus, the changes in the rotational torque as a result of temperature change are cancelled out.
摘要翻译： 一种用于枢转轴承的轴承结构，用于自由地支撑硬盘驱动器（HDD）的头臂的旋转。 轴承结构包括内轴，外套筒，轴向间隔开并置于内轴和外套筒之间的一对滚子轴承，以及用于在滚柱轴承上施加预载荷的预载弹簧。 滚子轴承可以设置有附接到外套筒的外圈。 然而，选择内轴和外套筒的线性膨胀系数使得它们在轴向方向上不同。 因此，选择内轴和外套筒的线性膨胀系数，使得从预压力导出的旋转扭矩随温度随温度升高而降低。 然而，随着润滑剂的温度升高，旋转扭矩变低，随着润滑剂的温度下降，转矩越高。 因此，由于温度变化导致的转矩的变化被抵消。
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公开(公告)号：US06507461B1
公开(公告)日：2003-01-14
申请号：US09979224
申请日：2001-11-20
申请人： Shinichi Kimura , Jun Ishikawa , Kohji Takahashi , Mutsuro Ohta
发明人： Shinichi Kimura , Jun Ishikawa , Kohji Takahashi , Mutsuro Ohta
IPC分类号： G11B2122
CPC分类号： G11B21/025 , G11B5/54 , G11B21/22
摘要： An inertial latch for preventing an actuator arm, which is a component of a disk apparatus, from flying out from an unloading position because of an external shock. The actuator arm cannot be prevented from flying out from the unloading position because of repulsion produced when the actuator arm crashes against a stopper, by operation other than an external shock. A latch, for engaging with a point end portion of the actuator arm to prevent the actuator arm from flying out, is provided with a sensing protrusion 16e. When the actuator arm crashes against an outer crash stop, the shock causes the latch to rotate and engage with the actuator arm, whereby the actuator arm is prevented from flying out.
摘要翻译： 用于防止作为盘装置的部件的致动器臂由于外部冲击而从卸载位置飞出的惯性闩锁。 由于当致动器臂通过除了外部冲击以外的操作而碰撞制动器而产生的斥力，致动器臂不能从卸载位置飞出。 用于与致动器臂的点端部分接合以防止致动器臂飞出的闩锁设置有感测突起16e。 当致动器臂碰撞外部碰撞停止时，冲击导致闩锁旋转并与致动器臂接合，从而防止致动器臂飞出。
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公开(公告)号：US07895904B2
公开(公告)日：2011-03-01
申请号：US12225584
申请日：2007-04-23
申请人： Naoki Matsubara , Kohji Takahashi
发明人： Naoki Matsubara , Kohji Takahashi
CPC分类号： G01F7/00 , G01F1/3209 , G01F1/3254 , G01F1/684 , G01F1/86
摘要： A multi-vortex flowmeter includes a vortex flowmeter for measurement by volume flow rate and a thermal flowmeter for measurement by mass flow rate to selectively use the two flowmeters according to the flow rate of fluid to be measured flowing through a flow channel. The multi-vortex flowmeter has a switching point between two flowmeters based on the mass flow rate. A mass flow rate Qm at the switching point in a range larger than the minimum flow rate of a vortex flowmeter and smaller than the maximum flow rate of a thermal flowmeter is determined by: Qm=K3*√P. Alternatively, a volume flow rate Q at the switching point in a range larger than the minimum flow rate of a vortex flowmeter and smaller than the maximum flow rate of a thermal flowmeter is determined by: Q=K1/√P.
摘要翻译： 多涡流式流量计包括用于以体积流量测量的涡流流量计和用于通过质量流量测量的热流量计，以根据流过流动通道的流体流量选择性地使用两个流量计。 多涡旋流量计基于质量流量具有两个流量计之间的切换点。 在大于涡流流量计的最小流量的范围内的切换点处的质量流量Qm小于热式流量计的最大流量，由下式确定：Qm = K3 *√P。 或者，在大于涡街流量计的最小流量的范围内的开关点处的体积流量Q小于热流量计的最大流量，由下式确定：Q = K1 /√P。
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公开(公告)号：US20080204925A1
公开(公告)日：2008-08-28
申请号：US12072744
申请日：2008-02-27
IPC分类号： G11B21/02
摘要： Embodiments of the present invention help to prevent data error occurrence in a hard disk drive by reducing the generation of dust caused by friction between a magnetic disk and a ramp. According to one embodiment, a hard disk drive comprises an enclosure, a motor for rotating a magnetic disk, an actuator for supporting a head slider for accessing the disk, and a ramp for loading/unloading the head slider disposed in the enclosure. The ramp comprises a tab slide formed of a resin material having a sliding characteristic to slide a tab at a tip end of the actuator at a specific velocity, and a slit on which a reinforcement made of a resin material with higher mechanical strength than the tab slide is formed.
摘要翻译： 本发明的实施例有助于通过减少由磁盘和斜坡之间的摩擦引起的灰尘的产生来防止硬盘驱动器中的数据错误发生。 根据一个实施例，硬盘驱动器包括外壳，用于旋转磁盘的马达，用于支撑用于访问磁盘的磁头滑块的致动器，以及用于装载/卸载设置在外壳中的磁头滑块的斜面。 坡道包括由具有滑动特性的树脂材料形成的突片滑动件，以在特定速度下滑动致动器的末端处的突片，以及狭缝，其上由树脂材料制成的具有比突片高的机械强度的增强材料 幻灯片形成。
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5.发明申请公开(公告)号：US20060262448A1
公开(公告)日：2006-11-23
申请号：US11437181
申请日：2006-05-18
IPC分类号： G11B15/18
CPC分类号： G11B5/54
摘要： Embodiments of the invention prevent contact between a peripheral edge of a magnetic disk and a counter surface of a ramp when the magnetic disk is displaced. In one embodiment, a ramp is disposed near the peripheral side surface of a magnetic disk. The ramp has magnetic disk retainers each having slide surfaces and counter surfaces respectively facing the recording surfaces of the magnetic disk. Grooves or recesses are formed in the counter surfaces to define relief spaces. When the peripheral side surface of the magnetic disk is displaced toward the counter surface by shocks exerted on the magnetic disk drive, the relief space prevents the peripheral edge from coming into contact with the counter surface. Thus the amount of particles produced by the collision of the magnetic disk with the ramp can be reduced.
摘要翻译： 当磁盘移位时，本发明的实施例防止磁盘的周边边缘与斜面的对置表面之间的接触。 在一个实施例中，斜面设置在磁盘的周边侧表面附近。 斜坡具有各自具有分别面对磁盘的记录表面的滑动表面和相对表面的磁盘保持器。 沟槽或凹槽形成在相对表面中以限定浮雕空间。 当通过施加在磁盘驱动器上的冲击使磁盘的周边侧面朝向对置面移动时，释放空间防止周缘与对置面接触。 因此，可以减少由磁盘与斜坡碰撞产生的颗粒的量。
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公开(公告)号：US20050062700A1
公开(公告)日：2005-03-24
申请号：US10989263
申请日：2004-11-17
CPC分类号： G09G3/2011 , G09G3/2025 , G09G3/3648 , G09G3/3688 , G09G3/3696 , G09G2310/027 , G09G2320/0242 , G09G2320/0271 , G09G2320/0276
摘要： A dot matrix display system for multiple-tone displays, including a display device in which pixels are arrayed in a matrix shape, an LC (liquid-crystal) drive signal generator which converts color display data into LC display data, an 8-level data driver which selects one of 8-level voltages in accordance with the LC display data and then delivers the selected voltage, and an 8-level voltage generator by which the 8-level applied LC voltages to be applied to the pixels are produced so as to substantially make uniform color differences between the respectively adjacent tones of the multiple-tone displays. Owing to the substantially uniform color differences between the respectively adjacent tones, multiple-tone displays which are uniformly seen by the human eye can be obtained.
摘要翻译： 一种用于多色调显示器的点阵显示系统，包括其中像素排列成矩阵形状的显示装置，将彩色显示数据转换为LC显示数据的LC（液晶）驱动信号发生器，8级数据 驱动器，其根据LC显示数据选择8级电压中的一个，然后传送所选择的电压;以及8级电压发生器，通过该电平产生要施加到像素的8电平施加的LC电压，以便 在多色调显示器的相邻相邻色调之间基本上使均匀的色差。 由于相邻相邻色调之间的色差基本均匀，可以获得人眼均匀观看的多色调显示。
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7.发明授权公开(公告)号：US06690540B2
公开(公告)日：2004-02-10
申请号：US09956178
申请日：2001-09-19
IPC分类号： G11B3308
CPC分类号： G11B33/08 , G11B25/043
摘要： A disk drive damper avoids matching a frequency band of a sound frequency peak generated by the rotation of a spindle motor and a resonant frequency of the damper. The damper is attached to a disk drive apparatus and enabled to repress vibration. The damper includes a flat base portion and wall-thickness portions that are thicker than the flat base portion. The damper is varied in shape more freely than conventional flat dampers. Consequently, the resonant frequency of the damper can be adjusted more freely than ever.
摘要翻译： 磁盘驱动器阻尼器避免了由主轴电动机的旋转产生的声频峰值和阻尼器的共振频率的频带的匹配。 阻尼器连接到磁盘驱动装置并且能够抑制振动。 阻尼器包括平坦的基部和比平坦的基部更厚的壁厚部。 阻尼器的形状比传统的扁平阻尼器更加自由。 因此，阻尼器的谐振频率可以比以往更自由地调节。
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公开(公告)号：US06072451A
公开(公告)日：2000-06-06
申请号：US953807
申请日：1992-09-30
申请人： Hiroyuki Mano , Toshio Tanaka , Tsutomu Furuhashi , Masaaki Kitajima , Toshio Futami , Masaki Mega , Shigeyuki Nishitani , Naruhiko Kasai , Kohji Takahashi
发明人： Hiroyuki Mano , Toshio Tanaka , Tsutomu Furuhashi , Masaaki Kitajima , Toshio Futami , Masaki Mega , Shigeyuki Nishitani , Naruhiko Kasai , Kohji Takahashi
CPC分类号： G09G3/3622 , G09G3/2018 , G09G2320/0247
摘要： A liquid-crystal display system includes a data driver, a scan driver, a liquid-crystal panel, a line memory (204 in FIG. 2) in which input display data (101) for representing any of display-ON, display-OFF and halftone every pixel are stored for, at least, one line, and a halftone pattern generator (200) by which liquid-crystal display data (106) to be applied to the data driver are generated using the contents of the line memory and the input display data. The halftone pattern generator generates ON data in response to the input display data representing the display-ON of the pixel; it generates OFF data in response to the input display data representing the display-OFF of the pixel; and it generates the ON data and the OFF data alternately in successive frames as halftone data in response to the input display data representing the halftone display of the pixel, and it also compares the input display data of a pertinent line and those of a preceding line every line so as to invert a phase of changing-over the ON data and the OFF data in accordance with a result of the comparison. Since the number of ON pixels (or pixels for either of first and second data) for the halftone display is substantially equalized every frame, flickering can be reduced irrespective of display patterns.
摘要翻译： 液晶显示系统包括数据驱动器，扫描驱动器，液晶面板，行存储器（图2中的204），其中用于表示任何显示ON，显示关闭的输入显示数据（101） 并且每个像素的半色调被存储为至少一行;以及半色调图案生成器（200），通过该半色调图案生成器（200），使用行存储器的内容生成要应用于数据驱动器的液晶显示数据（106） 输入显示数据。 半色调图案发生器响应于表示像素的显示ON的输入显示数据产生ON数据; 它响应于表示像素的显示关闭的输入显示数据产生OFF数据; 并且响应于表示像素的半色调显示的输入显示数据，在连续帧中交替地生成ON数据和OFF数据作为半色调数据，并且还将相关行的输入显示数据与前一行的输入显示数据进行比较 每一行，以便根据比较结果反转转换ON数据和OFF数据的相位。 由于对于半色调显示的ON像素（或者用于第一和第二数据中的任何一个的像素）的数量在每个帧上基本相等，所以可以减少闪烁，而与显示模式无关。
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9.发明授权System and method for locking a disk actuator in vertical and horizontal directions 失效用于在垂直和水平方向上锁定磁盘驱动器的系统和方法
公开(公告)号：US5671104A
公开(公告)日：1997-09-23
申请号：US582292
申请日：1996-01-03
CPC分类号： G11B21/22 , G11B25/043
摘要： A disk drive comprises a disk recording medium; an actuator traveling on the surface of the disk recording medium; a lock device vertically movable for locking the actuator when located upward or for releasing the actuator when located downward, composed of an elastic plate spring; a first magnetic-field supply for latching the lock device to the lower position by the action of a first magnetic force; a second magnetic-field supply for latching the lock device to the upper position by the action of a second magnetic force; and a lock device motor to move the lock device to the upper position when a first current supplied or as to move the lock device to the lower position when the second current different from the first current is supplied.
摘要翻译： 磁盘驱动器包括盘记录介质; 在盘记录介质的表面上行进的致动器; 锁定装置，其可垂直移动，用于当位于向上时用于锁定致动器，或者当位于向下时释放致动器，由弹性板簧构成; 用于通过第一磁力的作用将锁定装置锁定到下部位置的第一磁场供应; 第二磁场电源，用于通过第二磁力的作用将锁定装置锁定到上部位置; 以及锁定装置马达，当提供第一电流时，将锁定装置移动到上部位置，或者当提供与第一电流不同的第二电流时将锁定装置移动到下部位置。
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公开(公告)号：US5495287A
公开(公告)日：1996-02-27
申请号：US18494
申请日：1993-02-17
CPC分类号： G09G3/2011 , G09G3/3648 , G09G3/3688 , G09G3/3696 , G09G2310/027 , G09G2320/0242 , G09G2320/0271 , G09G2320/0276 , G09G3/2025
摘要： A dot matrix display system for multiple-tone displays, including a display device in which pixels are arrayed in a matrix shape, an LC (liquid-crystal) drive signal generator which converts color display data into LC display data, an 8-level data driver which selects one of 8-level voltages in accordance with the LC display data and then delivers the selected voltage, and an 8-level applied LC voltage generator by which the 8-level voltages to be applied to the pixels are produced so as to substantially make uniform color differences between the respectively adjacent tones of the multiple-tone displays. Owing to the substantially uniform color differences between the respectively adjacent tones, multiple-tone displays which are uniformly seen by the human eye can be obtained.
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