公开(公告)号：US06738205B1

公开(公告)日：2004-05-18

申请号：US09903445

申请日：2001-07-08

申请人： Patrick Moran ,  Tim Everett ,  Peter McEwen ,  Mike Moser ,  Stan Shepherd ,  Eduardo Gentile Veiga ,  Murat Erkocevic ,  Bill Baker

发明人： Patrick Moran ,  Tim Everett ,  Peter McEwen ,  Mike Moser ,  Stan Shepherd ,  Eduardo Gentile Veiga ,  Murat Erkocevic ,  Bill Baker

IPC分类号： G11B586

CPC分类号： G11B5/865 ,  G11B5/59633

摘要： A method and system for self-servo writing a disk drive by transferring a servo reference pattern by magnetic printing onto at least one storage surface of a reference disk, wherein a resulting printed reference pattern includes embedded servo information providing servo timing and transducer head position information; assembling the disk drive including the steps of installing at least said disk into the disk drive and enclosing said disk and the data transducers within a housing sealed against particulate contamination from an eternal ambient environment; reading the printed reference pattern from said disk via at least one transducer head to generate a readback signal; sampling the readback signal at a sampling rate to generate a sampled signal; processing the sampled signal waveform specturm to generate a recovered signal including the embedded servo information and a fundamental frequency of the sampled signal; using the servo information from the recovered signal to precisely position and maintain the data transducers at concentric track locations of disk storage surfaces; and self-writing disk drive servo patterns onto the storage surfaces at the concentric track locations with the data transducers in accordance with disk drive servo pattern features.

摘要翻译： 一种用于通过磁性印刷将伺服参考图案转移到参考盘的至少一个存储表面上来自动伺服写入磁盘驱动器的方法和系统，其中所得到的打印参考图案包括提供伺服定时和换能器头部位置信息的嵌入式伺服信息 ; 组装磁盘驱动器包括以下步骤：至少将所述磁盘安装到磁盘驱动器中，并将所述磁盘和数据传感器封装在壳体内，密封以防止来自永恒环境环境的颗粒污染物; 经由至少一个换能器头从所述盘读取打印的参考图案以产生回读信号; 以采样率对回读信号进行采样以产生采样信号; 处理采样信号波形谱以产生包括嵌入伺服信息和采样信号的基频的恢复信号; 使用来自恢复信号的伺服信息来精确地将数据传感器定位并保持在盘存储表面的同心轨迹位置; 以及根据磁盘驱动器伺服模式特征，使用数据传感器在同心轨道位置的存储表面上自写盘驱动器伺服模式。

公开(公告)号：US06366418B1

公开(公告)日：2002-04-02

申请号：US09346764

申请日：1999-06-30

申请人： Peter McEwen ,  Murat Erkocevic

发明人： Peter McEwen ,  Murat Erkocevic

IPC分类号： G11B509

CPC分类号： G11B20/10055 ,  G11B5/012 ,  G11B5/09 ,  G11B20/10009

摘要： A method reducing data format overhead in a storage device. A sequence detector includes a series of states and a path memory of predetermined length. This method includes steps of writing a predetermined shortened pad pattern at the end of a user data field pattern to a signal-degrading storage medium such as magnetic tape or disk; generating samples during read back of the user data field pattern and the shortened pattern; and, controlling the sequence detector during receipt of pad samples to converge at only one or several predetermined detector states during a convergence sequence. The convergence sequence, and the detector pad are shorter than a sequence needed to traverse the entire length of the path memory. The final state reached during the sequence can be used to provide an accurate estimate of a last user data bit of the user data field pattern.

摘要翻译： 一种降低存储设备中数据格式开销的方法。 序列检测器包括一系列状态和预定长度的路径存储器。 该方法包括以下步骤：将用户数据字段模式结束时的预定缩短的填充图案写入诸如磁带或磁盘的信号降级存储介质; 在用户数据字段模式和缩短模式的读回期间生成样本; 并且在收敛期间控制序列检测器在收敛序列期间仅在一个或多个预定检测器状态收敛。 收敛序列和检测器焊盘短于遍历路径存储器的整个长度所需的序列。 序列期间达到的最终状态可用于提供用户数据字段模式的最后一个用户数据位的精确估计。