公开(公告)号：US20100306612A1

公开(公告)日：2010-12-02

申请号：US12473207

申请日：2009-05-27

申请人： Yawshing Tang

发明人： Yawshing Tang

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H03M13/096 ,  H03M13/19 ,  H04L1/0045 ,  H04L1/0061

摘要： This application discloses a message format including a data payload of N bits and a corrector component encoding a checksum to correct the checksum of single bit slipping noise, where the checksum is the sum of each data payload bit by its position modulo N+1. The corrector component may encode a second checksum derived from the checksum that may also be included in the message and so on. Apparatus embodiments may include a transmitter generating a transmitted message of this format and/or a receiver using a received message that may be corrupted from the transmitted message through bit slipping in the form of bit insertion or bit deletion.

摘要翻译： 本申请公开了一种包括N位数据有效载荷的消息格式，以及一个校正单元，用于对校验和进行校正，以校正单位滑移噪声的校验和，其中校验和是每个数据有效负载位数N + 1的位数。 校正器组件可以编码从校验和导出的也可以包括在消息中的第二校验和等等。 装置实施例可以包括发射机，其通过以位插入或比特删除的形式通过比特滑动，生成可以从发送的消息中损坏的接收到的消息的该格式的发送消息和/或接收机。

公开(公告)号：US07768728B2

公开(公告)日：2010-08-03

申请号：US12001231

申请日：2007-12-10

申请人： Yawshing Tang ,  Carl Xiaodong Che

发明人： Yawshing Tang ,  Carl Xiaodong Che

IPC分类号： G11B27/36

CPC分类号： G11B27/3027 ,  G11B20/10222 ,  G11B20/18 ,  G11B2220/2516

摘要： A disk drive that includes a head and a disk. The disk drive also includes a circuit that can detect head/disk contact from a jitter determined from a read signal provided by the head. The jitter may correspond to the time interval between two detected sync marks. Alternatively, the jitter may correspond to a change in frequency of a read clock generated from the read signal. These approaches allow for detection of head movement in a down track direction. Down track is a direction that is essentially parallel with the longitudinal axis of the head.

摘要翻译： 包含磁头和磁盘的磁盘驱动器。 磁盘驱动器还包括可以从由头提供的读取信号确定的抖动来检测磁头/磁盘接触的电路。 抖动可以对应于两个检测到的同步标记之间的时间间隔。 或者，抖动可以对应于从读取信号产生的读取时钟的频率变化。 这些方法允许在下行轨道方向上检测头部运动。 下轨道是基本上与头部的纵向轴线平行的方向。

公开(公告)号：US07742251B2

公开(公告)日：2010-06-22

申请号：US12150810

申请日：2008-04-30

申请人： Yawshing Tang ,  Carl Xiaodong Che ,  Na-Young Kim

发明人： Yawshing Tang ,  Carl Xiaodong Che ,  Na-Young Kim

IPC分类号： G11B5/09

CPC分类号： G11B5/02 ,  G11B5/6005 ,  G11B5/6029 ,  G11B2005/0018

摘要： A hard disk drive that includes a disk that contains at least one signal and a head that is coupled to the disk. The disk drive also contains a circuit that includes a data sampler that generates a plurality of data samples from the signal, a harmonic sensor coupled to the data sampler and a spectral power accumulator coupled to the harmonic sensor. The harmonic sensor accumulates the data samples. The circuit includes a window generator that determines a window length of the data samples accumulated by the harmonic sensor. The spectral power accumulator accumulates the windows of sample data accumulated by the harmonic sensor. The sample data accumulated by the spectral power accumulator can be accessed by a processor that performs a spectral analysis of the data.

摘要翻译： 一个硬盘驱动器，其中包含一个至少包含一个信号的磁盘和一个耦合到磁盘的磁头。 磁盘驱动器还包含电路，该电路包括从信号产生多个数据样本的数据采样器，耦合到数据采样器的谐波传感器和耦合到谐波传感器的频谱功率累加器。 谐波传感器累积数据样本。 该电路包括窗口发生器，其确定由谐波传感器累积的数据样本的窗口长度。 光谱功率累加器累积由谐波传感器累积的采样数据的窗口。 由频谱功率累加器积累的采样数据可以由执行数据的频谱分析的处理器来访问。

公开(公告)号：US08086944B2

公开(公告)日：2011-12-27

申请号：US12493925

申请日：2009-06-29

申请人： Yawshing Tang

发明人： Yawshing Tang

IPC分类号： G06F11/08

CPC分类号： G11B20/18 ,  G11B20/10009 ,  G11B20/10379 ,  G11B2020/183 ,  G11B2020/1836 ,  G11B2220/2516

摘要： A hard disk drive with a disk that has a plurality of data bits. The drive includes a circuit that reads each data bit n times and selects a value for the bit based on a reliability factor. The circuit may select a bit based at least in part on the most frequent occurrence of one of a plurality of values. For example, if more 0s occurred than 1s the bit would be set to 0. The reliability factor may be a ratio of the occurrence of 0s to the occurrence of 1s. A bit can be not selected or deselected if the reliability factor exceeds a threshold value.

摘要翻译： 具有磁盘的具有多个数据位的硬盘驱动器。 该驱动器包括读取每个数据位n次的电路，并根据可靠性因素选择该位的值。 该电路可以至少部分地基于多个值中的一个值的最频繁出现来选择位。 例如，如果比1更多的0发生，则该位将被设置为0.可靠性因子可以是0的发生与发生1的比率。 如果可靠性因素超过阈值，则无法选择或取消选择。

公开(公告)号：US07885028B2

公开(公告)日：2011-02-08

申请号：US12082150

申请日：2008-04-08

申请人： Yawshing Tang ,  Carl Xiaodong Che ,  Na-Young Kim

发明人： Yawshing Tang ,  Carl Xiaodong Che ,  Na-Young Kim

IPC分类号： G11B5/09 ,  G11B27/36 ,  G11B5/03

CPC分类号： G11B5/09 ,  G11B20/18 ,  G11B2020/183 ,  G11B2220/2516

摘要： A hard disk drive with a disk that has a plurality of data bits. The drive includes a circuit that reads each data bit n times and selects a value for the bit based on the most frequent occurrence of one of a plurality of values. This process provides a voting technique that enhances the quality of accurately captured data.

摘要翻译： 具有磁盘的具有多个数据位的硬盘驱动器。 驱动器包括读取每个数据位n次的电路，并且基于多个值中的一个值的最频繁出现来选择位的值。 该过程提供了一种提高精确捕获数据质量的投票技术。

公开(公告)号：US07880991B2

公开(公告)日：2011-02-01

申请号：US11973814

申请日：2007-10-09

申请人： Yawshing Tang

发明人： Yawshing Tang

IPC分类号： G11B5/09

CPC分类号： G11B5/012 ,  B82Y10/00 ,  G11B5/59616 ,  G11B5/743 ,  G11B5/746

摘要： A hard disk drive with a patterned disk that has a plurality of data fields. Each data field includes a sync field and a plurality of sync marks. Data is written onto the patterned disk in accordance with a write clock. The write clock is generated and synchronized by the sync field and the sync marks. The sync marks are dispersed throughout the data field so that the write clock is resynchronized as data is written onto the field.

摘要翻译： 具有图案化磁盘的具有多个数据字段的硬盘驱动器。 每个数据字段包括同步字段和多个同步标记。 数据根据写时钟写入图形化的盘上。 写时钟由同步字段和同步标记产生并同步。 同步标记分散在整个数据字段中，以便当数据写入字段时，写入时钟被重新同步。

公开(公告)号：US07859783B2

公开(公告)日：2010-12-28

申请号：US12481297

申请日：2009-06-09

申请人： Yawshing Tang

发明人： Yawshing Tang

IPC分类号： G11B5/09

CPC分类号： G11B20/1403 ,  G11B20/10425 ,  G11B2020/1284 ,  G11B2020/1287 ,  G11B2220/2516

摘要： A hard disk drive with a disk that has a plurality of data fields. Each data field includes a sync field and a plurality of sync marks. Data is written onto the disk in accordance with a write clock. The write clock is generated and synchronized by the sync field and the sync marks. The sync marks are dispersed throughout the data field so that the write clock is resynchronized as data is written onto the field.

摘要翻译： 具有磁盘的具有多个数据字段的硬盘驱动器。 每个数据字段包括同步字段和多个同步标记。 数据根据写入时钟写入磁盘。 写时钟由同步字段和同步标记产生并同步。 同步标记分散在整个数据字段中，以便当数据写入字段时，写入时钟被重新同步。

公开(公告)号：US20100177418A1

公开(公告)日：2010-07-15

申请号：US12353918

申请日：2009-01-14

申请人： Yawshing Tang ,  Carl Xiaodong Che

发明人： Yawshing Tang ,  Carl Xiaodong Che

IPC分类号： G11B27/36 ,  G11B5/596

CPC分类号： G11B5/5547 ,  B82Y10/00 ,  G11B5/743 ,  G11B20/22 ,  G11B27/36 ,  G11B2005/0002 ,  G11B2220/2516

摘要： A hard disk drive with a patterned disk that has a discrete track. The disk drive includes a controller that controls a head and a voice coil motor to optimize a writing of information onto the discrete track. Writing optimization can occur by initially writing a track of information and recording the write position. The written track is then located by reading the information with a read element of a drive head and analyzing a quality of the read signal, such as signal amplitude or error rate. The read position is then recorded. The information is erased and the head is moved. The process of writing, finding the written track location, storing the write and read positions and again moving the head is repeated. The write and read positions that provide the best quality signal is saved and subsequently used to write and read data on the discrete track.

摘要翻译： 具有带有离散轨道的图案化磁盘的硬盘驱动器。 磁盘驱动器包括控制头和音圈电机的控制器，以优化将信息写入离散轨道。 写入优化可以通过初始写入信息轨迹并记录写入位置来进行。 然后通过用驱动头的读取元件读取信息并分析诸如信号幅度或错误率的读取信号的质量来定位写入的轨迹。 然后记录读取位置。 信息被清除，头部移动。 重复写入过程，找到写入的轨迹位置，存储写入和读取位置以及再次移动头部。 提供最佳质量信号的写入和读取位置被保存并随后用于在离散轨道上写入和读取数据。

公开(公告)号：US07738208B2

公开(公告)日：2010-06-15

申请号：US11998396

申请日：2007-11-28

申请人： Na Young Kim ,  Yawshing Tang ,  Carl Xiaodong Che

发明人： Na Young Kim ,  Yawshing Tang ,  Carl Xiaodong Che

IPC分类号： G11B15/04

CPC分类号： G11B5/012 ,  G11B19/041 ,  G11B20/18 ,  G11B2020/183 ,  G11B2220/2516

摘要： A hard disk drive with a disk that contains a target track and an adjacent track. The drive includes a circuit that determines an error in data read from the target track. Data from the adjacent track is stored in memory. The adjacent track is then erased and the target track data is re-read from the target track. Erasing the adjacent track allows the target track data to be read without adjacent track interference. The data from the adjacent track is typically rewritten onto the disk from memory so no data is lost.

摘要翻译： 硬盘驱动器，其中包含目标轨道和相邻轨道的磁盘。 驱动器包括确定从目标轨道读取的数据中的错误的电路。 来自相邻轨道的数据被存储在存储器中。 然后擦除相邻的轨道，并且从目标轨道重新读取目标轨道数据。 擦除相邻轨道允许在没有相邻轨道干涉的情况下读取目标轨道数据。 来自相邻轨道的数据通常从存储器重写到磁盘上，因此没有数据丢失。

公开(公告)号：US20100110573A1

公开(公告)日：2010-05-06

申请号：US12261557

申请日：2008-10-30

申请人： Yawshing Tang

发明人： Yawshing Tang

IPC分类号： G11B5/09

CPC分类号： G11B5/09 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/746 ,  G11B5/82 ,  G11B20/18 ,  G11B2220/252

摘要： A hard disk drive that includes a head that is coupled to a disk. The disk drive further includes a comparator circuit that is coupled to the head. The comparator circuit receives a synchronization signal and a write clock. The comparator generates a write error signal if a comparison of the synchronization and write clock signals exceeds a threshold. The write error signal can inhibit a write operation or cause a rewrite of data.

摘要翻译： 包含耦合到磁盘的磁头的硬盘驱动器。 磁盘驱动器还包括耦合到磁头的比较器电路。 比较器电路接收同步信号和写入时钟。 如果同步和写入时钟信号的比较超过阈值，比较器将产生写入错误信号。 写入错误信号可以抑制写入操作或导致重写数据。