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公开(公告)号：US5825151A
公开(公告)日：1998-10-20
申请号：US529513
申请日：1995-09-18
CPC分类号： H02P8/14
摘要： According to the present invention, a stepping motor driving apparatus having a rotor and a stator in n (an integer equal to or larger than 2) phases for moving a moving body is provided. The stepping motor driving apparatus includes a driver for selectively supplying to the stator a first current pattern for rotating the rotor at a first pitch and a second current pattern for rotating the rotor at a second pitch different from the first pitch based on a drive switching signal. The driver switches the first current pattern and the second current pattern at a point where a torque generated by the first current pattern is equal to a torque generated by the second current pattern and supplies the first current pattern or the second current pattern to the stator.
摘要翻译： 根据本发明，提供一种具有用于移动移动体的n（整数等于或大于2）的转子和定子的步进电动机驱动装置。 步进电动机驱动装置包括：驱动器，用于选择性地向定子供给用于以第一节距旋转转子的第一电流模式和用于基于驱动切换信号以不同于第一音调的第二音调旋转转子的第二电流模式 。 驱动器在由第一电流模式产生的转矩等于由第二电流模式产生的转矩的点处切换第一电流模式和第二电流模式，并将第一电流模式或第二电流模式提供给定子。
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公开(公告)号：US5995479A
公开(公告)日：1999-11-30
申请号：US941984
申请日：1997-10-01
申请人： Teruyuki Takizawa , Yoshihiro Ikawa , Kenji Akimaru , Koji Miyata
发明人： Teruyuki Takizawa , Yoshihiro Ikawa , Kenji Akimaru , Koji Miyata
CPC分类号： G11B7/08582 , G11B7/0956
摘要： The swing centers of guide shafts in inclination adjustment of an optical head are set to be on a plane which is perpendicular to a predetermined radial direction of an optical disk and has thereon the rotation axis of a disk motor. When the inclination adjustment of the optical head is conducted, relative gap variation between the optical head and the optical disk does not occur, and the inclination adjustment is realized within a movable range of an objective lens. The inclination angle of the optical head in a radial direction of the optical disk is adjusted by simultaneously moving upward or downward ends of two guide shafts, and the inclination angle of the optical head in a tangential direction of the optical disk can be adjusted by moving upward and downward one end of at least one of the guide shafts.
摘要翻译： 光头的倾斜调整中的导向轴的摆动中心设置在与光盘的规定的径向正交的平面上，并且具有盘式电动机的旋转轴。 当进行光头的倾斜调节时，不会发生光头与光盘之间的相对间隙变化，并且在物镜的可移动范围内实现倾斜调节。 通过同时移动两个导向轴的上下端来调整光学头在光盘的径向上的倾斜角度，并且可以通过移动来调节光学头在光盘切向方向上的倾斜角度 至少一个导向轴的上下一端。
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3.发明授权Apparatus and method for driving circuit elements based on groups of instruction values 有权基于指令值组驱动电路元件的装置和方法公开(公告)号：US06977874B2
公开(公告)日：2005-12-20
申请号：US10126283
申请日：2002-04-19
CPC分类号： G11B7/093 , G11B7/0932 , G11B7/0956
摘要： A circuit element driver includes a control section and a driving section. The control section receives a number n of instruction values of a first group (where n≧2) and produces and outputs a number p of instruction values of a second group (where (n+1)≦p
摘要翻译： 电路元件驱动器包括控制部分和驱动部分。 控制部分接收第一组（其中n> = 2）的n个指令值，并产生并输出第二组（其中（n + 1）<= p <2n）的p个指令值 与第一组的n个指令值。 发出第一组的指令值以产生要施加到n个两端电路元件的电压。 驱动部根据第二组的p指令值生成并输出p驱动电压。 p驱动电压中的至少一个电压随着第一组的指令值中的至少一个而变化，并且在其一个端子处共同施加到两个或更多个电路元件。
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公开(公告)号：US06834393B2
公开(公告)日：2004-12-21
申请号：US10220868
申请日：2002-09-03
IPC分类号： G11B17028
CPC分类号： G11B33/08 , G11B19/04 , G11B19/2018 , G11B19/2027 , G11B25/043
摘要： A disk drive including a motor that rotates a disk, an auto-balancer connected to a rotating portion of the motor, a base secured to the motor and connected to an external member via a first elastic member, and a dynamic vibration absorber connected to the base via a second elastic member. When the disk makes a whirling motion while being rotated by the motor, a phase angle of 120 degrees to 180 degrees is formed between a direction that is pointed from a whirling center axis toward a center of mass of the disk and a direction that is pointed from the whirling center axis toward the center of mass of the auto-balancer.
摘要翻译： 一种盘驱动器，其特征在于，包括使盘旋转的马达，与马达的旋转部连接的自动平衡器，固定于马达的基座，经由第一弹性部件与外部部件连接的基座， 底座经由第二弹性构件。 当磁盘在由电动机旋转的同时进行旋转运动时，在从旋转中心轴指向盘的质心的方向和指向的方向之间形成120度至180度的相位角 从旋转中心轴向自动平衡器的质心。
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公开(公告)号：US06181671B2
公开(公告)日：2001-01-30
申请号：US09203527
申请日：1998-12-01
IPC分类号： G11B2300
CPC分类号： G11B19/2009
摘要： To improve the accuracy in holding a disc and to reduce unwanted vibration occurring when the disc is rotated at a high speed (the whirling of a turn table and a rotor), a spindle motor for rotating a disc comprises a turn table (3) that holds a disc (1) to rotate it, a rotor (4) that applies rotational driving force to the turn table, and a rotating shaft (5) provided on the rotation axis of the rotor, wherein the rotating shaft is fixed on the rotation axis of the turn table using a first support member, and the turn table and the rotor are supported by a second support member consisting of a filler filled in a predetermined gap (9).
摘要翻译： 为了提高保持盘的精度，并且当盘高速旋转（转台和转子旋转）时，减少不必要的振动，用于旋转盘的主轴电动机包括转台（3），该转台 保持用于使其旋转的盘（1），向转台施加旋转驱动力的转子（4）和设置在转子的旋转轴上的旋转轴（5），其中，旋转轴固定在旋转 使用第一支撑构件转动台，并且转台和转子由填充在预定间隙（9）中的填料构成的第二支撑构件支撑。
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6.发明授权公开(公告)号：US07948696B2
公开(公告)日：2011-05-24
申请号：US12482970
申请日：2009-06-11
申请人： Yoshihiro Ikawa , Mamoru Morita
发明人： Yoshihiro Ikawa , Mamoru Morita
IPC分类号： G02B7/02
CPC分类号： G11B7/0932 , G11B7/22 , Y10T156/10
摘要： In an objective lens actuator of an optical disk drive and the like, variations in the fixed end positions of wires serving as suspensions are reduced and tilt characteristics are improved. When wires 13 are fixed by soldering, a deformation caused by soldering on the wires 13 is minimized by providing heat absorbing members 25 and 26 which hold the wires 13 near soldering positions to absorb soldering heat.
摘要翻译： 在光盘驱动器等的物镜致动器中，减少了用作悬架的线的固定端位置的变化，并提高了倾斜特性。 当电线13通过焊接固定时，通过提供将电线13保持在焊接位置附近以吸收焊接热量的吸热构件25和26，使得由电线13上的焊接引起的变形被最小化。
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公开(公告)号：US06791772B2
公开(公告)日：2004-09-14
申请号：US10397810
申请日：2003-03-25
IPC分类号： G02B702
CPC分类号： G11B7/0935 , G11B7/093 , G11B7/0933
摘要： An objective lens driver includes a movable body, a base, a supporting portion, a first multipolar magnet and a second multipolar magnet. The movable body includes an objective lens, a lens holder, and a coil substrate. The coil substrate includes a focusing coil and a tracking coil. The supporting portion allows the movable body to move in a focusing direction and a tracking direction with respect to the base. The focusing direction is parallel to the optical axis of the objective lens, while the tracking direction is perpendicular to the focusing direction. The first and second multipolar magnets sandwich the coil substrate between them. The focusing and tracking coils are arranged as two flat coils on two mutually parallel separate planes so as to overlap with each other at least partially in a direction that is perpendicular to the focusing and tracking directions.
摘要翻译： 物镜驱动器包括可移动体，基座，支撑部分，第一多极磁体和第二多极磁体。 可移动体包括物镜，透镜保持器和线圈基板。 线圈基板包括聚焦线圈和跟踪线圈。 支撑部分允许可移动体相对于基座在聚焦方向和跟踪方向上移动。 聚焦方向平行于物镜的光轴，而跟踪方向垂直于聚焦方向。 第一和第二多极磁体将线圈基板夹在它们之间。 聚焦和跟踪线圈在两个相互平行的分开的平面上被布置为两个扁平线圈，以便至少部分地在垂直于聚焦和跟踪方向的方向上彼此重叠。
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公开(公告)号：US07193937B2
公开(公告)日：2007-03-20
申请号：US10616266
申请日：2003-07-09
申请人： Yoshihiro Ikawa , Hiroshi Yamamoto , Koji Ieki
发明人： Yoshihiro Ikawa , Hiroshi Yamamoto , Koji Ieki
IPC分类号： G11B7/00
CPC分类号： G11B7/0956 , G11B7/0933 , G11B7/0935
摘要： Tracking coils are attached to outer surfaces of two focusing coils. Inside the focusing coils, a first magnet and a second magnet are arranged respectively. A third magnet is arranged so as to face the first magnet and the second magnet via the tracking coils. An open end of a first yoke for holding the first magnet and an open end of a second yoke for holding the second magnet are connected by a bridging yoke. Since a magnetic flux is formed in the bridging yoke, pitching vibrations can be suppressed and a driving sensitivity improves owing to an increase in an effective magnetic flux.
摘要翻译： 跟踪线圈连接到两个聚焦线圈的外表面。 在聚焦线圈内部，分别设置有第一磁体和第二磁体。 第三磁体被布置成经由跟踪线圈面对第一磁体和第二磁体。 用于保持第一磁体的第一磁轭的开口端和用于保持第二磁体的第二磁轭的开口端通过桥接磁轭连接。 由于在桥接磁轭中形成磁通量，所以可以抑制俯仰振动，并且由于有效磁通的增加而提高驱动灵敏度。
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公开(公告)号：US07433278B2
公开(公告)日：2008-10-07
申请号：US10532141
申请日：2003-10-23
申请人： Koji Ieki , Hiroshi Yamamoto , Yoshihiro Ikawa
发明人： Koji Ieki , Hiroshi Yamamoto , Yoshihiro Ikawa
CPC分类号： G11B7/0932 , G11B7/0956
摘要： In order to obtain a preferred recording/reproducing characteristic in an apparatus for optical disks having higher density, an objective lens drive is provided for driving an objective lens (1) in the optical axis direction, a direction perpendicular to the optical axis, and a tilting direction along the radius of an optical disk, by which operating sensitivity is improved and a stable operating characteristic is realized. Sections of two (7b, 7e) of six fixing portions (7a to 7f) for supporting six support members (6a to 6f) which support a movable part (5), are set lower in stiffness than another sections of the other four fixing portions (7a, 7c, 7d, 7f), thereby improving the operating sensitivity of the movable part (5) and stabilizing the operation of the movable part (5).
摘要翻译： 为了在具有较高密度的光盘的装置中获得优选的记录/再现特性，提供了一种用于在光轴方向，垂直于光轴的方向驱动物镜（1）的物镜驱动器，以及 沿着光盘的半径倾斜方向，从而提高操作灵敏度并实现稳定的工作特性。 用于支撑支撑可移动部分（5）的六个支撑构件（6a至6f）的六个固定部分（7a至7f）的两个（7b，7e）的部分的刚度比另一部分 （7a，7c，7d，7f），从而提高可动部（5）的操作灵敏度，稳定可动部（5）的动作。
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公开(公告)号：US08254220B2
公开(公告)日：2012-08-28
申请号：US12482932
申请日：2009-06-11
申请人： Yoshihiro Ikawa , Mamoru Morita
发明人： Yoshihiro Ikawa , Mamoru Morita
IPC分类号： G11B7/00
CPC分类号： G11B7/0932 , G11B7/0933 , G11B7/0935 , G11B7/0956
摘要： In an objective lens actuator of an optical disk drive and the like, variations in the fixed end positions of wires serving as suspensions are reduced and tilt characteristics are improved. Terminal plates 20 fixed to a lens holder are tilted relative to wires 13 for supporting the lens holder with elasticity, and are soldered at the edges of the terminal plates 20, so that variations in the fixed end positions of the wires 13 are reduced.
摘要翻译： 在光盘驱动器等的物镜致动器中，减少了用作悬架的线的固定端位置的变化，并提高了倾斜特性。 固定在透镜保持架上的端子板20相对于电线13倾斜，用于支撑透镜保持器的弹性，并且在端子板20的边缘焊接，使得电线13的固定端位置的变化减小。
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