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79 条记录 (耗时 0.026 秒)

    Writing and reading of data in probe-based data storage devices
    41.
    发明申请
    Writing and reading of data in probe-based data storage devices 失效
    在基于探测的数据存储设备中写入和读取数据

    公开(公告)号：US20060072420A1

    公开(公告)日：2006-04-06

    申请号：US10945224

    申请日：2004-09-20

    申请人： Thomas Albrecht ,  Theodore Antonakopoulos ,  Giovanni Cherubini ,  Ajay Dholakia ,  Evangelos Eleftheriou ,  Charalampos Pozidis

    发明人： Thomas Albrecht ,  Theodore Antonakopoulos ,  Giovanni Cherubini ,  Ajay Dholakia ,  Evangelos Eleftheriou ,  Charalampos Pozidis

    IPC分类号： G11B7/00

    CPC分类号： B82Y10/00 ,  G11B9/14 ,  G11B9/1436

    摘要： Methods and apparatus are provided for controlling writing and reading of data in an array of A storage fields of a probe-based data storage device in which data is written to and read from the array of storage fields by a corresponding array of probes. One method uses the concept of sub-arrays to provide variable-rate read/write operation. Input data blocks are received for writing to the A-field array, each input data block being writable in A/k0 storage fields where k0 is an integer ≧2. For successive groups of k0 blocks, the k0 blocks are written to respective sub-arrays, each of A/k0 storage fields, of the storage field array by selectively writing at one of a series of rates, ranging from 1 block at a time to k0 blocks at a time, in dependence on a desired data write-rate. The blocks can also be read from the sub-arrays by selectively reading at one of a series of rates, ranging from 1 sub-array at a time to k0 sub-arrays at a time, in dependence on a desired data read-rate.

    摘要翻译： 提供了用于控制在基于探针的数据存储设备的A个存储区域阵列中的数据的写入和读取的方法和装置，其中通过相应的探针阵列将数据写入存储区阵列并从存储区域读取数据。 一种方法使用子阵列的概念来提供可变速率的读/写操作。 接收用于写入A字阵列的输入数据块，每个输入数据块可在A / k 0存储区域中写入，其中k <0>是整数> = 2 。 对于k个块的连续组，将k个0个块写入相应的子阵列，每个A / k 0个存储场， 根据期望的数据写入速率，通过以一系列速率中的一个选择性地写入，每次从一个块到每个块块一次块。 也可以通过选择性地以一系列速率中的一种读取从子阵列中读出的块，从一个子阵列一次一个子阵列到一个子阵列，依次 以期望的数据读取速率。

    System and method for generating a position error signal (PES) reference curve in a data storage device
    48.
    发明授权
    System and method for generating a position error signal (PES) reference curve in a data storage device 失效
    用于在数据存储装置中产生位置误差信号（PES）参考曲线的系统和方法

    公开(公告)号：US07405898B2

    公开(公告)日：2008-07-29

    申请号：US11424078

    申请日：2006-06-14

    申请人： Evangelos S. Eleftheriou ,  Angeliki Pantazi ,  Charalampos Pozidis ,  Abu Sebastian

    发明人： Evangelos S. Eleftheriou ,  Angeliki Pantazi ,  Charalampos Pozidis ,  Abu Sebastian

    IPC分类号： G11B5/596

    CPC分类号： G11B5/596

    摘要： System and method for generating a Position Error Signal (PES) reference curve in data storage devices are provided. The method includes scanning a distance of at least one Track Pitch (TP) in a cross-track direction in each servo-burst along a predefined path. One or more TPs in each servo-burst are scanned with a read head. The method further includes, calculating a plurality of samples of each differential signal. A differential signal corresponds to a first read-back signal and a second read-back signal. Thereafter, a plurality of normalized signals are determined. A normalized signal is determined by dividing each sample of the differential signal with a normalization constant. The plurality of normalized signals are combined to generate the PES reference curve.

    摘要翻译： 提供了在数据存储设备中生成位置误差信号（PES）参考曲线的系统和方法。 该方法包括沿着预定义的路径在每个伺服突发中扫描交叉轨道方向上的至少一个轨道间距（TP）的距离。 每个伺服脉冲串中的一个或多个TP被读取头扫描。 该方法还包括：计算每个差分信号的多个采样。 差分信号对应于第一读回信号和第二读回信号。 此后，确定多个归一化信号。 通过将差分信号的每个样本除以归一化常数来确定归一化信号。 多个归一化信号被组合以产生PES参考曲线。