公开(公告)号：US08164846B1

公开(公告)日：2012-04-24

申请号：US12336308

申请日：2008-12-16

申请人： Xueshi Yang ,  Yu-Yao Chang ,  Michael Madden ,  Zining Wu

发明人： Xueshi Yang ,  Yu-Yao Chang ,  Michael Madden ,  Zining Wu

IPC分类号： G11B5/02 ,  G11B27/36

CPC分类号： G11B20/1816 ,  G11B2220/2516

摘要： Methods, systems and computer program products for performing hybrid defect detection are disclosed. A hybrid defect detection mechanism may be used to detect various classes of defects (e.g., long and shallow defects, and short and deep defects) while reducing the probability of a miss or false alarm. In some implementations, the hybrid defect detection mechanism may utilize a defect detector that includes one or more defect sub-detectors. Each defect sub-detector may be associated with an individual threshold and sliding window length to enhance the hybrid defect detection process that maximizes the detection of a specific type or class of defects.

摘要翻译： 公开了用于执行混合缺陷检测的方法，系统和计算机程序产品。 可以使用混合缺陷检测机构来检测各种类型的缺陷（例如，长而浅的缺陷以及短而深的缺陷），同时降低错误或虚假警报的可能性。 在一些实施方案中，混合缺陷检测机构可以利用包括一个或多个缺陷子检测器的缺陷检测器。 每个缺陷子检测器可以与单个阈值和滑动窗口长度相关联，以增强最大化特定类型或类别的缺陷的检测的混合缺陷检测过程。

公开(公告)号：US08051365B1

公开(公告)日：2011-11-01

申请号：US12015913

申请日：2008-01-17

申请人： Zaihe Yu ,  Michael Madden

发明人： Zaihe Yu ,  Michael Madden

IPC分类号： H03M13/03

CPC分类号： G11B20/10212 ,  G11B20/10175 ,  G11B20/10222 ,  G11B20/10277 ,  G11B20/10398 ,  G11B20/20 ,  H03M13/3961 ,  H03M13/41 ,  H03M13/6343

摘要： Apparatus and methods are disclosed for decoding data stored on a data storage medium. A disclosed decoding method and decoder include a radial incoherence (RI) detector that increases the probability of detecting RI and improves the decoding performance in terms of the bit error rate of the decoded signal. RI is detected by comparing an input signal to the decoder against a RI threshold value and generating a RI-type signal. The RI detector may include a filter for filtering out noise and error in the RI-type signal, an adaptive threshold unit that adjusts the RI threshold value based upon the RI-type signal, a transition-based threshold unit that adjusts the RI threshold value based upon each transition in the input signal, or a path-based threshold unit that adjusts the RI threshold value based upon a best surviving path corresponding to the input signal, in combination or alone.

摘要翻译： 公开了用于对存储在数据存储介质上的数据进行解码的装置和方法。 所公开的解码方法和解码器包括径向不相干（RI）检测器，其增加检测RI的概率，并且根据解码信号的误码率提高解码性能。 通过将输入信号与解码器相对于RI阈值进行比较并产生RI型信号来检测RI。 RI检测器可以包括用于滤除RI型信号中的噪声和误差的滤波器，基于RI型信号调整RI阈值的自适应阈值单元，调整RI阈值的基于过渡的阈值单元 基于输入信号中的每个转换，或者基于路径的阈值单元，其组合地或组合地基于基于与输入信号对应的最佳幸存路径来调整RI阈值。

公开(公告)号：US08027114B1

公开(公告)日：2011-09-27

申请号：US12467885

申请日：2009-05-18

申请人： Ke Han ,  Michael Madden ,  Xueshi Yang

发明人： Ke Han ,  Michael Madden ,  Xueshi Yang

IPC分类号： G11B5/09

CPC分类号： G11B5/09 ,  G11B5/59616 ,  G11B5/59666 ,  G11B5/59688 ,  G11B20/10009 ,  G11B20/1024 ,  G11B20/10296 ,  G11B20/1217 ,  G11B2020/1281 ,  G11B2020/1287 ,  G11B2220/2516

摘要： The present disclosure includes apparatus, systems and techniques relating to detecting sync marks. In some implementations, an apparatus includes phase locking circuitry that includes a phase calculator to identify a phase of sampled data, and a phase-locked loop to generate an output signal and phase-lock the generated output signal with the calculated phase of the sampled data to produce a phase-locked signal. The apparatus includes detector circuitry to receive phase information of the phase-locked output signal. The detector circuitry includes a detector to generate a stream of decision bits for the sampled data with each bit in the stream being associated with a different phase. The detector circuitry includes an output selector to select at least one bit from the stream based on the received phase information of the phase-locked output signal.

摘要翻译： 本公开包括与检测同步标记相关的装置，系统和技术。 在一些实施方式中，一种装置包括锁相电路，该锁相电路包括用于识别采样数据的相位的相位计算器，以及产生输出信号的锁相环，并且用计算出的采样数据的相位来相位锁定所生成的输出信号 以产生锁相信号。 该装置包括用于接收锁相输出信号的相位信息的检测器电路。 检测器电路包括检测器，以产生用于采样数据的判决位流，其中流中的每个位与不同的相位相关联。 检测器电路包括输出选择器，用于根据接收到的锁相输出信号的相位信息从流中选择至少一个位。

公开(公告)号：US07982990B1

公开(公告)日：2011-07-19

申请号：US12554771

申请日：2009-09-04

申请人： Zaihe Yu ,  Michael Madden

发明人： Zaihe Yu ,  Michael Madden

IPC分类号： G11B5/09

CPC分类号： G11B5/59627 ,  G11B5/09 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/10314 ,  G11B20/1217 ,  G11B2020/1281 ,  G11B2220/2516

摘要： Methods, apparatuses, and systems describing digital techniques to decode signals extracted from computer-readable storage media. A digital signal that includes a digital representation of a repeatable runout signal having a magnitude and included in an analog signal is obtained. An estimate of the magnitude of the RRO signal based on the digital signal is determined. The estimate is provided for decoding the digital signal to extract the included data by adapting a detector gain target in accordance with the estimate. The detector gain target is a function of a desired amplitude of the RRO signal.

摘要翻译： 描述用于对从计算机可读存储介质提取的信号进行解码的数字技术的方法，装置和系统。 获得包括具有幅度并包含在模拟信号中的可重复跳动信号的数字表示的数字信号。 确定基于数字信号的RRO信号幅度的估计。 提供估计用于对数字信号进行解码以通过根据估计调整检测器增益目标来提取所包含的数据。 检测器增益目标是RRO信号的期望幅度的函数。

公开(公告)号：US07974034B1

公开(公告)日：2011-07-05

申请号：US11810832

申请日：2007-06-06

申请人： Ke Han ,  Zining Wu ,  Michael Madden

发明人： Ke Han ,  Zining Wu ,  Michael Madden

IPC分类号： G11B5/09

CPC分类号： G11B20/10009 ,  G11B5/012 ,  G11B5/09 ,  G11B20/10287 ,  G11B20/1217 ,  G11B2020/1232 ,  G11B2020/1287 ,  G11B2220/2516

摘要： Systems and methods for detecting and designing enhanced disk sync marks using correlation detection are disclosed. The enhanced sync marks provide better noise immunity and higher detection rates over traditional Viterbi-based detection schemes even with a shorter sync mark length. The disk sync mark may provide optimal noise immunity for a particular target polynomial or a plurality of common target polynomials. The minimum Euclidean distance between a candidate sync mark and a plurality of right-shifted versions of the candidate sync mark is computed and compared with other candidate sync marks. The sync mark with the largest minimum Euclidean distance is then selected as the optimal mark. Systems and methods are also disclosed for detecting and designing a disk sync mark using correlation detection when the polarity of the disk is unknown or time-varying.

摘要翻译： 公开了使用相关检测来检测和设计增强的盘同步标记的系统和方法。 与传统的基于维特比的检测方案相比，增强的同步标记提供更好的抗噪声性和更高的检测率，即使具有较短的同步标记长度。 磁盘同步标记可以为特定目标多项式或多个公共目标多项式提供最佳的噪声抗扰度。 计算候选同步标记与候选同步标记的多个右移版本之间的最小欧几里德距离，并与其他候选同步标记进行比较。 然后选择具有最大欧几里得距离的最大同步标记作为最佳标记。 还公开了系统和方法，用于当磁盘的极性未知或时变时，使用相关检测来检测和设计磁盘同步标记。

公开(公告)号：US07974032B1

公开(公告)日：2011-07-05

申请号：US11784482

申请日：2007-04-06

申请人： Hongwei Song ,  Ke Han ,  Michael Madden ,  Zining Wu

发明人： Hongwei Song ,  Ke Han ,  Michael Madden ,  Zining Wu

IPC分类号： G11B5/09

CPC分类号： G11B20/18 ,  G11B20/10009 ,  G11B20/10222 ,  G11B20/1037 ,  G11B20/10462 ,  G11B20/10509 ,  G11B2220/2516

摘要： A system for identifying and compensating for non-linear transition shift in a magnetic medium data storage device is disclosed. The non-linear transition shift compensation system includes a non-linear transition shift estimation module adapted to generate non-linear transition shift estimates for specific bit patterns. The system further includes a pre-compensation module adapted to adjust the temporal spacing of binary transitions written to the magnetic medium based on the non-linear transition shift estimates generated by the non-linear transition shift estimation module for specific bit patterns corresponding to bit patterns appearing in the data being written to the magnetic medium.

摘要翻译： 公开了一种用于识别和补偿磁介质数据存储装置中的非线性跃迁的系统。 非线性跃迁偏移补偿系统包括适于产生特定比特模式的非线性跃迁偏移估计的非线性跃迁偏移估计模块。 该系统还包括预补偿模块，其适于基于由非线性跃迁偏移估计模块针对与位模式对应的特定比特模式生成的非线性跃迁移位估计来调整写入到磁介质的二进制转换的时间间隔 出现在写入磁介质的数据中。

公开(公告)号：US07933092B1

公开(公告)日：2011-04-26

申请号：US12470987

申请日：2009-05-22

申请人： Xueshi Yang ,  Michael Madden ,  Zining Wu

发明人： Xueshi Yang ,  Michael Madden ,  Zining Wu

IPC分类号： G11B5/596

CPC分类号： G11B5/5556 ,  G11B5/59611

摘要： In a method for providing an estimate of a head position for a disk drive, a readback signal is filtered. The readback signal includes a first position signal component corresponding to a first position pattern on a disk, and includes a second position signal component corresponding to a second position pattern on the disk. Filtering the readback signal includes using a filter determined based on statistical information regarding a noise component of the readback signal. An estimate of an amplitude of the first position signal component is generated based on the filtered readback signal, and an estimate of an amplitude of the second position signal component is generated based on the filtered readback signal. An estimate of a head position with respect to a track on the disk is generated based on the estimate of the amplitude of the first position signal component and the estimate of the amplitude of the second position signal component.

摘要翻译： 在用于提供磁盘驱动器的磁头位置的估计的方法中，滤波回读信号。 回读信号包括对应于盘上的第一位置图案的第一位置信号分量，并且包括对应于盘上的第二位置图案的第二位置信号分量。 过滤回读信号包括使用基于关于回读信号的噪声分量的统计信息确定的滤波器。 基于经滤波的回读信号生成第一位置信号分量的振幅的估计，并且基于滤波的回读信号生成第二位置信号分量的振幅的估计。 基于第一位置信号分量的振幅的估计和第二位置信号分量的振幅的估计，产生相对于磁盘上的磁道的磁头位置的估计。

公开(公告)号：US20100016088A1

公开(公告)日：2010-01-21

申请号：US12519929

申请日：2007-12-18

申请人： Michael Madden ,  Brian Michael Valovick ,  Jake Lawson

发明人： Michael Madden ,  Brian Michael Valovick ,  Jake Lawson

IPC分类号： F16D3/84

CPC分类号： F16D3/843 ,  Y10S464/906 ,  Y10T29/49938 ,  Y10T403/17

摘要： An embodiment of a connection system for a grease cover of a constant velocity joint includes a groove portion formed in a generally annular portion of the constant velocity joint. The generally annular portion is defined, at least in part, by an inner surface. The system also includes a grease cover selectively positioned at least partially within the groove portion. The grease cover includes an outer edge portion.

摘要翻译： 用于等速万向节润滑脂盖的连接系统的实施例包括形成在等速万向节的大致环形部分中的槽部。 至少部分由内表面限定大致环形部分。 该系统还包括选择性地至少部分地位于槽部内的油脂盖。 油脂盖包括外边缘部分。

公开(公告)号：US20090259150A1

公开(公告)日：2009-10-15

申请号：US12249134

申请日：2008-10-10

申请人： Isaac Ostrovsky ,  Jon T. McIntyre ,  Ty Fairneny ,  Victor Shukhat ,  Michael Madden

发明人： Isaac Ostrovsky ,  Jon T. McIntyre ,  Ty Fairneny ,  Victor Shukhat ,  Michael Madden

IPC分类号： A61N7/00 ,  A61B6/00

CPC分类号： A61N7/022 ,  A61B5/0084 ,  A61B5/4325 ,  A61B2017/00061 ,  A61B2018/00023 ,  A61B2090/306

摘要： A device for treating tissue comprises an enlongate probe and a light delivery unit illuminating a target area with light within a first wavelength band selected to enhance identification of target tissue in combination with an ultrasound crystal mounted at a distal end of the probe, the crystal being stimulated to treat target tissue identified using the light delivery unit.

摘要翻译： 一种用于治疗组织的装置，包括一个扩大的探针和一个光输送单元，用一个第一波长带内的光照射一个目标区域，以便与安装在该探头的远端的超声波晶体结合，以增强目标组织的识别，该晶体是 刺激以治疗使用光输送单元鉴定的靶组织。

公开(公告)号：US20090037220A1

公开(公告)日：2009-02-05

申请号：US11658629

申请日：2004-07-28

申请人： Desmond Chambers ,  Gerard Lyons ,  Michael Madden ,  Michael Schukat

发明人： Desmond Chambers ,  Gerard Lyons ,  Michael Madden ,  Michael Schukat

IPC分类号： G06Q50/00 ,  G08B23/00

CPC分类号： G06Q50/24 ,  G06F19/3418 ,  G16H40/63 ,  G16H50/20 ,  G16H50/30

摘要： A patient care distribution and management system is provided. The system allows for the seamless roaming of a patient within a particular medical facility or between medical facilities. The system includes body area network (BAN) management agents which process data within specified parts of a defined operational remit of a medical facility, a BAN hub agent associated with each patient that communicates with a BAN management agent and stores patient data delivered thereto by medical telemetry monitor diagnostic devices (MTMDDs) connected to each patient. The essential feature of the system is that the BAN hub agent has relatively little processing power compared to the BAN management agent which feeds it with patient monitoring rules to monitor the patient condition and to enable the BAN hub agent to set off alarms etc. as required.

摘要翻译： 提供病人护理分配和管理系统。 该系统允许在特定医疗设施内或医疗设施之间的患者的无缝漫游。 该系统包括身体区域网络（BAN）管理代理，其处理医疗设施的定义的操作级别的指定部分内的数据，与每个患者相关联的BAN中枢代理与BAN管理代理进行通信并且存储通过医疗传递给其的患者数据 遥测监测诊断装置（MTMDD）连接到每个病人。 该系统的基本特征是与BAN管理代理相比，BAN中枢代理具有相对较小的处理能力，该管理代理向患者监视规则提供患者监控规则以监视患者状况，并使BAN中枢代理能够根据需要启动警报等 。