公开(公告)号：US06309592B1

公开(公告)日：2001-10-30

申请号：US09543848

申请日：2000-04-05

申请人： Ta-Hsiang Wang ,  Cheng-Yao Liao ,  Jui-Nan Chuang ,  Tzu-Nan Chen

发明人： Ta-Hsiang Wang ,  Cheng-Yao Liao ,  Jui-Nan Chuang ,  Tzu-Nan Chen

IPC分类号： B22F100

CPC分类号： B22F3/225 ,  B22F5/00 ,  B22F5/10 ,  B22F2003/166 ,  B22F2998/00 ,  B22F2998/10 ,  B22F1/0096 ,  B22F3/1021

摘要： A method for manufacturing the roller carrier of a vibration balance device, the roller carrier is installed with at least one round track around a rotary axis thereof for carrying a plurality of rollers; characterized in that: the roller carrier is made of alloy powder and made by a process of metal powder metallurgy. The material of the powder is SUS-316L or other proper alloy powder. The manufacturing process of the metal powder metallurgy includes the steps of: feeding material, compacting, sintering, and sizing, or other manufacturing process of the metal powder metallurgy (MIM) can be used, which includes the steps of feeding material, pelletizing, injection molding, debinding, sintering, and sizing. The roller carrier from aforementioned processes uses less materials, can be mass-produced, has a precise dimension, is light weighted, has a smooth surface and has a high surface hardness. In other word, the roller carrier made from the manufacturing process of metal powder metallurgy not only has preferred physical properties, such as good hardness, smoothness and precision, but also can reduce the vibration from the eccentricity of rotation. Moreover, the manufacturing cost can be reduced greatly and yield is increased. Therefore, the present invention is economical.

摘要翻译： 一种用于制造振动平衡装置的滚子载具的方法，所述滚轮架设有围绕其旋转轴线的至少一个圆形轨道，用于承载多个滚子; 其特征在于：辊式载体由合金粉末制成，并通过金属粉末冶金方法制成。 粉末的材料为SUS-316L或其他合适的合金粉末。 金属粉末冶金的制造方法包括以下步骤：可以使用金属粉末冶金（MIM）的进料，压实，烧结和上浆或其他制造工艺，其包括进料，造粒，注射 成型，脱脂，烧结和上浆。 上述方法的辊架使用较少的材料，可批量生产，具有精确的尺寸，重量轻，表面光滑，表面硬度高。 换句话说，由金属粉末冶金的制造工艺制成的辊架不仅具有优良的物理性能，如硬度好，平滑度和精度好，还可以减少旋转偏心的振动。 此外，制造成本可以大大降低，产量提高。 因此，本发明是经济的。

公开(公告)号：US06496472B1

公开(公告)日：2002-12-17

申请号：US09534613

申请日：2000-03-27

申请人： Cheng-Yao Liao ,  Jui-Nan Chuang ,  Ta Hsiang Wang ,  Tzu Nan Chen

发明人： Cheng-Yao Liao ,  Jui-Nan Chuang ,  Ta Hsiang Wang ,  Tzu Nan Chen

IPC分类号： G11B2300

CPC分类号： G11B19/2009

摘要： Turntable runout of an optical disk drive is corrected by the application of at least three skidproof rubber pads affixed to the turntable on a circle and separated by equal angles. The height of each of the skidproof rubber pads is selected to adjust the runout of the turntable at each location. The invention accomplishes the compensation of turntable runout where, traditionally, lathe-turning was required.

摘要翻译： 光盘驱动器的转盘跳动通过施加固定在转盘上的至少三个防滑橡胶垫来校正，并以相等的角度分开。 选择每个防滑橡胶垫的高度来调节每个位置处转盘的跳动。 本发明完成了转盘跳动的补偿，其中传统上需要车床转弯。

公开(公告)号：US06915527B2

公开(公告)日：2005-07-05

申请号：US10242782

申请日：2002-09-13

申请人： Cheng-Yao Liao ,  Tzu-Nan Chen

发明人： Cheng-Yao Liao ,  Tzu-Nan Chen

IPC分类号： G11B19/20

CPC分类号： G11B19/2027 ,  G11B19/2009

摘要： An auto-balancing apparatus for optical disk drives mainly includes a housing for holding a balance weight and a plurality of clamp mechanisms movable radially through the perimeter of the housing. The clamp mechanisms are engaged with a spindle of a spindle motor or the housing through elastic elements. When the spindle motor is not rotating, the balance weight is anchored at a desired position by the clamp mechanisms because of the elastic force of the elastic elements. When operating at high rotation speeds, the engagement force of the elastic elements exerted on the clamp mechanisms is smaller than the centrifugal force, and the balance weight may be moved freely to automatically reach a balanced condition. When operating at low rotation speeds, the server system drives the spindle motor to rotate at speeds faster than the critical rotation speed to reach a balanced condition, then slows down the rotation speed to allow the engagement force exerted on the clamp mechanisms to be greater than the centrifugal force and anchor the balance weight. Thus the auto-balancing apparatus can achieve a balance effect at low rotation speeds.

摘要翻译： 用于光盘驱动器的自动平衡装置主要包括用于保持平衡重的壳体和可径向移动通过壳体的周边的多个夹紧机构。 夹紧机构通过弹性元件与主轴电动机的主轴或壳体接合。 当主轴电动机不旋转时，由于弹性元件的弹性力，平衡重被夹紧机构固定在期望的位置上。 当以高转速工作时，施加在夹紧机构上的弹性元件的接合力小于离心力，平衡重可自由移动以自动达到平衡状态。 当以低转速操作时，服务器系统驱动主轴电机以比临界转速更快的速度旋转以达到平衡状态，然后减慢转速，使得施加在夹紧机构上的接合力大于 离心力和锚定平衡重。 因此，自动平衡装置可以在低转速下实现平衡效果。

公开(公告)号：US06430144B1

公开(公告)日：2002-08-06

申请号：US09571277

申请日：2000-05-16

申请人： Cheng-Yao Liao ,  Tzu-Nan Chen ,  Lih-Hwa Kuo

发明人： Cheng-Yao Liao ,  Tzu-Nan Chen ,  Lih-Hwa Kuo

IPC分类号： G11B1920

CPC分类号： G11B19/2009 ,  F16F15/363 ,  G11B19/2027 ,  Y10T74/2111

摘要： The present invention proposes a control method of the auto-balancing system of an optical disk drive. The present invention adds a procedure of constant rotation speed in the acceleration process of the spindle motor when the rotation speed is below a critical speed. When the rotation speed of the spindle motor is below the critical speed, the position of added mass will be situated at a position at the same side of the unbalance vector of the original optical disk. Thereby the balancing mass will remain at the position of worst balancing effect in the procedure of constant rotation speed. After the procedure of constant rotation speed, the spindle motor will be accelerated to pass the critical speed of the system by the largest torque. Because of inertial effect, when the rotation speed of the spindle motor exceeds the critical speed, the balancing mass will leave from the original position of worst balancing effect and smoothly move to an opposite position of the unbalance vector of the original optical disk. Best balancing effect can thus be achieved.

摘要翻译： 本发明提出了一种光盘驱动器的自动平衡系统的控制方法。 本发明在旋转速度低于临界转速时，在主轴电动机的加速过程中增加恒定转速的过程。 当主轴电机的转速低于临界转速时，相加质量的位置将位于原始光盘的不平衡矢量的同一侧。 因此，在恒定转速的过程中，平衡质量将保持在最差的平衡效果的位置。 转速恒定后，主轴电机将通过最大扭矩加速使系统的临界转速达到最大值。 由于惯性效应，当主轴电机的转速超过临界速度时，平衡质量将从原始位置离开最差的平衡效果，并平滑地移动到原始光盘的不平衡矢量的相对位置。 因此可以实现最佳平衡效果。

公开(公告)号：US06299823B1

公开(公告)日：2001-10-09

申请号：US09542833

申请日：2000-04-04

申请人： Lih-Hwa Kuo ,  Ta-Hsiang Wang ,  Cheng-Yao Liao

发明人： Lih-Hwa Kuo ,  Ta-Hsiang Wang ,  Cheng-Yao Liao

IPC分类号： B29C4500

CPC分类号： C04B35/111

摘要： A method for manufacturing the roller carrier of a vibration balance device, the roller carrier is installed with at least one round track around a rotary axis thereof for carrying a plurality of rollers; characterized in that: the roller carrier is made of ceramic powder and made by a process of ceramic powder metallurgy. The material of the powder is A92A aluminum oxide or zirconium oxide, or other proper metal oxide. The manufacturing process of the ceramic powder metallurgy includes the steps of: feeding material, compacting, sintering, and polishing, or other manufacturing process of the ceramic powder metallurgy can be used, which includes the steps of feeding material, pelletizing, injection molding, debinding, sintering, and polishing. The roller carrier from aforementioned processes uses less materials, can be mass-produced, has a precise dimension, is light weighted, has a smooth surface and has a high surface hardness. In other word, the roller carrier made from the manufacturing process of ceramic powder metallurgy not only has preferred physical properties, such as good hardness, smoothness and precision, but also can reduce the vibration from the eccentricity of rotation and prolong the lifetime. Moreover, the manufacturing cost can be reduced greatly and yield is increased. Therefore, the present invention is economical.

摘要翻译： 一种用于制造振动平衡装置的滚子载具的方法，所述滚轮架设有围绕其旋转轴线的至少一个圆形轨道，用于承载多个滚子; 其特征在于：辊式载体由陶瓷粉末制成，并通过陶瓷粉末冶金法制成。 粉末的材料是A92A氧化铝或氧化锆，或其他合适的金属氧化物。 陶瓷粉末冶金的制造工艺包括以下步骤：可以使用进料，压实，烧结和抛光，或者可以使用陶瓷粉末冶金的其他制造工艺，其包括进料，造粒，注塑，脱脂步骤 ，烧结和抛光。 上述方法的辊架使用较少的材料，可批量生产，具有精确的尺寸，重量轻，表面光滑，表面硬度高。 换句话说，由陶瓷粉末冶金的制造工艺制成的辊架不仅具有优良的物理性能，如硬度好，平滑度和精度高，还可以减少旋转偏心的振动，延长使用寿命。 此外，制造成本可以大大降低，产量提高。 因此，本发明是经济的。

公开(公告)号：US06883175B2

公开(公告)日：2005-04-19

申请号：US10818161

申请日：2004-04-05

申请人： Cheng-Yao Liao ,  Tzu-Nan Chen

发明人： Cheng-Yao Liao ,  Tzu-Nan Chen

IPC分类号： G11B33/08 ,  G11B25/04

CPC分类号： G11B33/08

摘要： A dynamic vibration absorbing apparatus for an optical disk drive. The dynamic vibration absorbing apparatus has a first plate, a second plate provided either above or under the first plate, a plurality of first plate supporting devices, and a plurality of vibration absorbing dampers, in which each of the vibration absorbing dampers is provided between the first plate and each of the first plate supporting devices and between the first plate and the second plate.

摘要翻译： 一种用于光盘驱动器的动态吸振装置。 动态振动吸收装置具有第一板，设置在第一板的上方或下方的第二板，多个第一板支撑装置和多个减震阻尼器，其中每个振动吸收阻尼器设置在 第一板和第一板支撑装置中的每一个以及第一板和第二板之间。

公开(公告)号：US06813773B2

公开(公告)日：2004-11-02

申请号：US10245280

申请日：2002-09-16

申请人： Cheng-Yao Liao ,  Tzu-Nan Chen

发明人： Cheng-Yao Liao ,  Tzu-Nan Chen

IPC分类号： G11B708

CPC分类号： G11B7/082 ,  G11B7/08582 ,  G11B21/24

摘要： A tilt adjust mechanism for an optical disc drive. The optical disc drive includes a base plate. The tilt adjust mechanism comprises a plurality of mounts, two guide rails, a plurality of pre-compressed springs, and a plurality of screws. Each of the mounts is disposed on the base plate. Each of the guide rails is disposed on the mount at both ends. Each of the pre-compressed springs is disposed in the mount. Each of the screws is disposed on the base plate through the mount and the pre-compressed spring so as to adjust the guide rail.

摘要翻译： 用于光盘驱动器的倾斜调整机构。 光盘驱动器包括基板。 倾斜调整机构包括多个安装件，两个导轨，多个预压缩弹簧和多个螺钉。 每个安装件设置在基板上。 每个导轨都设置在两端的安装座上。 每个预压缩弹簧设置在安装座中。 每个螺钉通过支架和预压缩弹簧设置在基板上，以便调节导轨。

公开(公告)号：US06823527B2

公开(公告)日：2004-11-23

申请号：US10281598

申请日：2002-10-28

申请人： Cheng-Yao Liao ,  Tzu-Nan Chen

发明人： Cheng-Yao Liao ,  Tzu-Nan Chen

IPC分类号： G11B2504

CPC分类号： G11B33/08

摘要： A dynamic vibration absorbing apparatus for an optical disk drive. The dynamic vibration absorbing apparatus has a first plate, a second plate provided either above or under the first plate, a plurality of first plate supporting devices, and a plurality of vibration absorbing dampers, in which each of the vibration absorbing dampers is provided between the first plate and each of the first plate supporting devices and between the first plate and the second plate.

公开(公告)号：US06348747B1

公开(公告)日：2002-02-19

申请号：US09609704

申请日：2000-07-03

申请人： Cheng-Yao Liao ,  Ching-Ho Huang ,  Tzu-Nan Chen ,  Lih-Hwa Kuo

发明人： Cheng-Yao Liao ,  Ching-Ho Huang ,  Tzu-Nan Chen ,  Lih-Hwa Kuo

IPC分类号： H02K704

CPC分类号： F16F15/363 ,  H02K7/04 ,  Y10T464/50

摘要： A method for controlling an auto-balancing system of an optic disk in an optic disk drive is proposed. As the rotary speed of a spindle motor is not faster than a critical speed, a dither signal of high frequency and micro amplitude is added to a command signal for speeding a maximum rotary speed for reducing friction force, and then the balancing mass successfully moves to a position with a reverse phase opposite to an unbalance vector of the optic disk. After the rotary speed of the spindle motor is higher than a critical speed, the dither signal and then speeding the spindle motor is removed and the motor is accelerated to a maximum rotary speed.

摘要翻译： 提出了一种用于控制光盘驱动器中的光盘的自动平衡系统的方法。 由于主轴电动机的旋转速度不高于临界速度，所以将高频和微振幅的抖动信号添加到指令信号中，以加速用于减小摩擦力的最大转速，然后平衡质量块成功移动到 具有与光盘的不平衡矢量相反的反相位置。 主轴电机的转速高于临界转速后，去除抖动信号，然后加速主轴电机，电机加速到最大转速。

公开(公告)号：US20080298216A1

公开(公告)日：2008-12-04

申请号：US12120333

申请日：2008-05-14

申请人： Cheng-Yao Liao

发明人： Cheng-Yao Liao

IPC分类号： G11B7/00 ,  G11B7/125

CPC分类号： G11B23/505 ,  G11B7/0062

摘要： The present invention discloses a method used in an optical disk drive for destroying data of an optical disk. The optical disk is rotated clockwise and the optical head moves one track per revolution. Then, the optical head is controlled so that the spot size of the emitted laser beam projected on the optical disk is about one track pitch wide and the laser beam has a destroy power. Thereafter, the laser beam with the destroy power is adopted to write the optical disk from the inner diameter to the outer diameter.

摘要翻译： 本发明公开了一种在光盘驱动器中用于破坏光盘数据的方法。 光盘顺时针旋转，光头每转一个轨道。 然后，控制光头，使得投射在光盘上的发射激光束的光点尺寸大约为一个光道间距宽，并且激光束具有破坏力。 此后，采用具有破坏功率的激光束将光盘从内径写入外径。