公开(公告)号：US06999909B1

公开(公告)日：2006-02-14

申请号：US09651046

申请日：2000-08-30

Applicant: Pradeep Kumar Subrahmanyan

Inventor： Pradeep Kumar Subrahmanyan

IPC: G06F17/10 ,  G11B5/596

CPC classification number: G11B33/08 ,  G11B5/5582

Abstract: An optimal vibration mount for a disc drive is designed by computing external, Ξ, and internal, Θ, disturbance models for the disc drive and defining an inertia matrix, M, for the disc drive. A state estimator, such as a Kalman filter, is defined based on the inertia matrix and external and internal disturbance models, and a covariance matrix, Σ, is derived based on the filter algebraic Riccati equation. The state estimator gain, H, is calculated from Σ(I 0)′Θ−1, and the optimal mount damping, B. and stiffness, K, parameters are derived from the state estimator gain and inertia matrix, H = ( M - 1 B M - 1 K ) .

Abstract translation: 通过计算磁盘驱动器的外部，Xi和内部，Theta，干扰模型来设计用于磁盘驱动器的最佳振动台，并为磁盘驱动器定义惯性矩阵M。 基于惯性矩阵和外部和内部干扰模型来定义状态估计器，例如卡尔曼滤波器，并且基于滤波器代数Riccati方程导出协方差矩阵Σ。 状态估计器增益H由Sigma（I 0）'Theta ^{-1计算，最佳安装阻尼B和刚度K参数从状态估计器增益和惯性导出 matr}

公开(公告)号：US07031116B2

公开(公告)日：2006-04-18

申请号：US09893194

申请日：2001-06-27

Applicant: Pradeep Kumar Subrahmanyan

Inventor： Pradeep Kumar Subrahmanyan

IPC: G11B21/08

CPC classification number: G11B5/5521 ,  G11B5/4813

Abstract: An information handling system includes a base, a disc rotatably attached to the base, and an actuator assembly movably attached to the base the actuator assembly. An actuator assembly has an opening at the pivot therein. An actuator arm attached to the main body, and a voice coil motor is positioned within the opening of the actuator assembly. The voice coil motor also includes at least two magnets attached to the main body of the actuator arm. The magnets are arranged as a Halbach array. The voice coil motor is positioned within the opening of the actuator assembly, and near one end of the actuator assembly and at least one load spring and transducer are positioned at the other end of the actuator assembly.

Abstract translation: 信息处理系统包括基座，可旋转地附接到基座的盘，以及可移动地附接到致动器组件的基座的致动器组件。 致动器组件在其枢轴处具有开口。 附接到主体的致动器臂和音圈电动机定位在致动器组件的开口内。 音圈电机还包括至少两个附接到致动器臂主体的磁体。 磁体排列成Halbach阵列。 音圈马达定位在致动器组件的开口内，并且靠近致动器组件的一端，并且至少一个负载弹簧和换能器定位在致动器组件的另一端。