公开(公告)号：US08077571B1

公开(公告)日：2011-12-13

申请号：US11999505

申请日：2007-12-05

申请人： Haitao Xia ,  Yenyu Hsieh ,  Bac Pham

发明人： Haitao Xia ,  Yenyu Hsieh ,  Bac Pham

IPC分类号： G11B20/18

CPC分类号： G11B20/18 ,  G11B20/10037 ,  G11B20/10222 ,  G11B27/36 ,  G11B2020/1826 ,  G11B2220/2516

摘要： Detecting a defect on a storage device is disclosed. Detecting includes receiving a signal read from a storage device, sampling the signal to obtain a set of signal samples, wherein the sampling starts at an arbitrary time, computing a defect value for a defect type using the set of signal samples, comparing the defect value with a threshold associated with the defect type, determining whether there is a defect of the defect type based at least in part on the comparison, and in the event that a defect is detected, outputting an indication associated with the defect.

摘要翻译： 公开了检测存储设备上的缺陷。 检测包括接收从存储设备读取的信号，对信号进行采样以获得一组信号样本，其中采样在任意时间开始，使用该组信号样本计算缺陷类型的缺陷值，比较缺陷值 具有与缺陷类型相关联的阈值，至少部分地基于比较来确定是否存在缺陷类型的缺陷，并且在检测到缺陷的情况下，输出与缺陷相关联的指示。

公开(公告)号：US20120113782A1

公开(公告)日：2012-05-10

申请号：US13291017

申请日：2011-11-07

申请人： Haitao Xia ,  Yenyu Hsieh ,  Bac Pham

发明人： Haitao Xia ,  Yenyu Hsieh ,  Bac Pham

IPC分类号： G11B27/36

CPC分类号： G11B20/18 ,  G11B20/10037 ,  G11B20/10222 ,  G11B27/36 ,  G11B2020/1826 ,  G11B2220/2516

摘要： Detecting a defect on a storage device is disclosed. Detecting includes receiving a signal read from a storage device, sampling the signal to obtain a set of signal samples, wherein the sampling starts at an arbitrary time, computing a defect value for a defect type using the set of signal samples, comparing the defect value with a threshold associated with the defect type, determining whether there is a defect of the defect type based at least in part on the comparison, and in the event that a defect is detected, outputting an indication associated with the defect.

摘要翻译： 公开了检测存储设备上的缺陷。 检测包括接收从存储设备读取的信号，对信号进行采样以获得一组信号样本，其中采样在任意时间开始，使用该组信号样本计算缺陷类型的缺陷值，比较缺陷值 具有与缺陷类型相关联的阈值，至少部分地基于比较来确定是否存在缺陷类型的缺陷，并且在检测到缺陷的情况下，输出与缺陷相关联的指示。

公开(公告)号：US08274871B2

公开(公告)日：2012-09-25

申请号：US13291017

申请日：2011-11-07

申请人： Haitao Xia ,  Yenyu Hsieh ,  Bac Pham

发明人： Haitao Xia ,  Yenyu Hsieh ,  Bac Pham

IPC分类号： G11B20/18

CPC分类号： G11B20/18 ,  G11B20/10037 ,  G11B20/10222 ,  G11B27/36 ,  G11B2020/1826 ,  G11B2220/2516

摘要： Detecting a defect on a storage device is disclosed. Detecting includes receiving a signal read from a storage device, sampling the signal to obtain a set of signal samples, wherein the sampling starts at an arbitrary time, computing a defect value for a defect type using the set of signal samples, comparing the defect value with a threshold associated with the defect type, determining whether there is a defect of the defect type based at least in part on the comparison, and in the event that a defect is detected, outputting an indication associated with the defect.

摘要翻译： 公开了检测存储设备上的缺陷。 检测包括接收从存储设备读取的信号，对信号进行采样以获得一组信号样本，其中采样在任意时间开始，使用该组信号样本计算缺陷类型的缺陷值，比较缺陷值 具有与缺陷类型相关联的阈值，至少部分地基于比较来确定是否存在缺陷类型的缺陷，并且在检测到缺陷的情况下，输出与缺陷相关联的指示。

公开(公告)号：US08063802B1

公开(公告)日：2011-11-22

申请号：US12661994

申请日：2010-03-26

申请人： Haitao Xia ,  Yenyu Hsieh

发明人： Haitao Xia ,  Yenyu Hsieh

IPC分类号： H03M1/06

CPC分类号： H03M1/0836 ,  H03M1/12

摘要： Phase is adjusted by using an analog to digital converter to convert an analog signal to a plurality of digital samples. A filter is used to filter the plurality of digital samples to obtain a plurality of phase adjusted samples.

摘要翻译： 通过使用模数转换器来调整相位，以将模拟信号转换成多个数字样本。 滤波器用于对多个数字样本进行滤波以获得多个相位调整样本。

公开(公告)号：US08184390B1

公开(公告)日：2012-05-22

申请号：US12592343

申请日：2009-11-23

申请人： Haitao Xia ,  Yenyu Hsieh

发明人： Haitao Xia ,  Yenyu Hsieh

IPC分类号： G11B20/14

CPC分类号： G11B20/10027 ,  G11B20/10046 ,  G11B20/10287 ,  G11B2220/2508 ,  G11B2220/60

摘要： Data is processed by receiving data having a value. The amplitude of the received data is adjusted using the processor based at least in part on the value of the received data to obtain modified data.

摘要翻译： 通过接收具有值的数据来处理数据。 至少部分地基于接收到的数据的值，使用处理器来调整接收到的数据的幅度，以获得修改的数据。

公开(公告)号：US09477350B2

公开(公告)日：2016-10-25

申请号：US13451288

申请日：2012-04-19

申请人： Samuel W. Sheng ,  Shih-Ming Shih ,  Yenyu Hsieh

发明人： Samuel W. Sheng ,  Shih-Ming Shih ,  Yenyu Hsieh

IPC分类号： G06F3/043 ,  G06F3/041

CPC分类号： G06F3/0436 ,  G06F3/0418 ,  G06F3/043

摘要： A system for determining a user indication is disclosed. The system includes a communication interface configured to send a signal to be used to propagate a freely propagating signal through a propagating medium with a surface and receive the freely propagating signal that has been disturbed by a disturbance on the surface. The system also includes a processor coupled to the communication interface and configured to process the received signal to determine a user indication associated with the disturbance.

摘要翻译： 公开了一种用于确定用户指示的系统。 该系统包括通信接口，其被配置为发送用于通过具有表面的传播介质传播自由传播信号的信号，并且接收已经被表面上的扰动干扰的自由传播信号。 该系统还包括耦合到通信接口并被配置为处理接收到的信号以确定与干扰相关联的用户指示的处理器。

公开(公告)号：US5530688A

公开(公告)日：1996-06-25

申请号：US332234

申请日：1994-10-31

申请人： Jerry E. Hurst, Jr. ,  Kurt A. Rubin ,  Yenyu Hsieh

发明人： Jerry E. Hurst, Jr. ,  Kurt A. Rubin ,  Yenyu Hsieh

IPC分类号： G11B7/0045 ,  G11B7/125 ,  G11B11/105 ,  G11B7/00

CPC分类号： G11B7/126 ,  G11B11/1053 ,  G11B7/00454 ,  G11B7/127 ,  G11B7/0045

摘要： An optical disk data storage system uses two lasers to write data on the disk, preferably using pulse width modulation (PWM). The lasers direct two independently controllable laser beams to the disk to form two spots that are spaced apart a fixed distance along the data track. Each laser is independently controlled by a modulator that causes the laser to emit the laser beam in a highly pulsed manner. The two laser beams can be simultaneously and independently pulsed along a single track and each beam may be pulsed on any given write clock period and at any of several different power levels. The pulsed lasers write spots of substantially the same size on the disk. The PWM run lengths are recorded on the disk as marks comprising either a single isolated spot or a series of contiguous or overlapping spots. The pulsing of the two lasers is synchronously interleaved so that either adjacent marks (mark-interleaved writing) or adjacent mark edges (edge-interleaved writing) are alternately written by the two lasers. In this manner, an amount of time elapses between the writing of successive marks or mark edges, thereby significantly reducing the effect of thermal buildup by allowing time for the data layer in the optical disk to cool.

摘要翻译： 光盘数据存储系统使用两个激光器来在盘上写数据，优选地使用脉宽调制（PWM）。 激光器将两个可独立控制的激光束引导到盘，以形成沿着数据轨道间隔开固定距离的两个点。 每个激光器由调制器独立控制，该调制器使得激光以高度脉冲的方式发射激光束。 两个激光束可以沿着单个轨道同时且独立地脉冲，并且每个波束可以在任何给定的写时钟周期和几个不同功率电平中的任一个处被脉冲。 脉冲激光器在盘上写入基本上相同尺寸的光斑。 PWM运行长度作为标记记录在磁盘上，标记包括单个孤立点或一系列连续或重叠的点。 两个激光器的脉冲同步交错，使得两个激光器交替地写入相邻标记（标记交错写入）或相邻标记边缘（边缘交错写入）。 以这种方式，在连续标记或标记边缘的写入之间经过一段时间，从而通过允许光盘中的数据层的时间冷却来显着减少热积累的影响。

公开(公告)号：US20120274609A1

公开(公告)日：2012-11-01

申请号：US13451288

申请日：2012-04-19

申请人： Samuel W. Sheng ,  Shih-Ming Shih ,  Yenyu Hsieh

发明人： Samuel W. Sheng ,  Shih-Ming Shih ,  Yenyu Hsieh

IPC分类号： G06F3/043

CPC分类号： G06F3/0436 ,  G06F3/0418 ,  G06F3/043

摘要： A system for determining a user indication is disclosed. The system includes a communication interface configured to send a signal to be used to propagate a freely propagating signal through a propagating medium with a surface and receive the freely propagating signal that has been disturbed by a disturbance on the surface. The system also includes a processor coupled to the communication interface and configured to process the received signal to determine a user indication associated with the disturbance.

摘要翻译： 公开了一种用于确定用户指示的系统。 该系统包括通信接口，其被配置为发送用于通过具有表面的传播介质传播自由传播信号的信号，并且接收已经被表面上的扰动干扰的自由传播信号。 该系统还包括耦合到通信接口并被配置为处理接收到的信号以确定与干扰相关联的用户指示的处理器。

公开(公告)号：US06313963B1

公开(公告)日：2001-11-06

申请号：US09385190

申请日：1999-08-30

申请人： Yenyu Hsieh

发明人： Yenyu Hsieh

IPC分类号： G11B509

CPC分类号： G11B20/10055 ,  G11B5/012 ,  G11B5/09 ,  G11B20/10009 ,  G11B20/10037 ,  G11B20/10296

摘要： A system and method for partial erasure compensation for a read channel is disclosed. The method comprises receiving a signal at a first state, the first state having a branch extending to each of a plurality of possible next states, each branch corresponding to a target value, determining a partial erasure compensation for each of the target values corresponding to a branch between the first state and each of the possible next states based upon the first state and each of the possible next states, the partial erasure compensation being a function of an amplitude reduce by partial erasure, and modifying the target value with the determined partial erasure compensation.

摘要翻译： 公开了一种用于读通道的部分擦除补偿的系统和方法。 该方法包括在第一状态下接收信号，第一状态具有延伸到多个可能的下一状态中的每一个的分支，每个分支对应于目标值，确定对应于一个目标值的每个目标值的部分擦除补偿 基于第一状态和每个可能的下一状态在第一状态和每个可能的下一状态之间分支，部分擦除补偿是通过部分擦除减小幅度的函数，并且利用所确定的部分擦除来修改目标值 补偿。