公开(公告)号：US08619528B2

公开(公告)日：2013-12-31

申请号：US13223199

申请日：2011-08-31

申请人： Hamid Ghazvini ,  David Kuo ,  Minh Huong Le ,  Kim Yang Lee ,  HongYing Wang ,  Nobuo Kurataka ,  Yautzong Hsu ,  Henry Hung Yang

发明人： Hamid Ghazvini ,  David Kuo ,  Minh Huong Le ,  Kim Yang Lee ,  HongYing Wang ,  Nobuo Kurataka ,  Yautzong Hsu ,  Henry Hung Yang

IPC分类号： G11B20/00

CPC分类号： G06K5/00 ,  G11B5/746 ,  G11B5/82 ,  G11B5/84 ,  G11B5/855 ,  G11B20/182 ,  G11B27/36 ,  G11B2220/2516

摘要： A system and method of calibrating optical measuring equipment includes optically measuring discrete objects of a first known predictable pattern from a calibration apparatus, wherein the first known predictable pattern is a bit pattern. A recording surface optical reader is calibrated based on the optically measuring. Using the first known predictable pattern, contamination is filtered from the results of the optically measuring.

公开(公告)号：US20130258513A1

公开(公告)日：2013-10-03

申请号：US13756565

申请日：2013-02-01

申请人： HITACHI HIGH-TECHNOLOGIES CORPORATION

发明人： Yoshihiro SAKURAI ,  Toshiaki SUZUKI ,  Kazuhiko KISHIE

IPC分类号： G11B20/18

CPC分类号： G11B20/182 ,  G11B5/59627 ,  G11B19/048 ,  G11B20/10388 ,  G11B2220/2508

摘要： Provided are magnetic read-write inspection apparatus and inspection method allowing measurement and inspection again by a sector servo system even when a magnetic disk measured and inspected by the sector servo system is detached from the inspection apparatus and re-mounted. A data write unit writes a servo pattern signal in a predetermined track range of the disk, writes an inspection test pattern signal onto an inspection track by performing sector-servo-system-based positioning and concentrically writes an eccentricity learning pattern onto an eccentricity learning track which is different from the inspection track. An eccentric quantity learning unit calculates an eccentric quantity of the disk from a read signal detection position by reading out the eccentricity learning pattern without using servo information. An eccentric quantity correction unit controls shaking of a magnetic head so as to cancel the calculated eccentric quantity when reading out a test signal from the disk.

摘要翻译： 提供磁读取检查装置和检查方法，即使当扇区伺服系统测量和检查的磁盘与检查装置分离并重新安装时，也可以通过扇区伺服系统再次进行测量和检查。 数据写入单元将伺服模式信号写入到盘的预定磁道范围内，通过执行基于扇区伺服系统的定位将检查测试图案信号写入检查轨迹，并将偏心学习模式同心地写入偏心学习轨迹 这与检查轨迹不同。 偏心量学习单元通过在不使用伺服信息的情况下读出偏心学习模式来从读取信号检测位置计算出盘的偏心量。 偏心量校正单元控制从磁盘读出测试信号时磁头的振动，以消除计算出的偏心量。

公开(公告)号：US08441904B2

公开(公告)日：2013-05-14

申请号：US13131133

申请日：2009-11-30

申请人： Keith Brady ,  Gregory Quick

发明人： Keith Brady ,  Gregory Quick

IPC分类号： G11B27/36

CPC分类号： G11B20/182 ,  G11B19/048 ,  G11B20/1217 ,  G11B2020/1275 ,  G11B2020/1282 ,  G11B2220/2516

摘要： There is disclosed a method and apparatus for measuring a signal using a measurement system. The signal has a frequency component that is to be detected by the measurement. The frequency component has a varying phase. The signal has at least one interruption thereto. The method includes: processing the signal with the measurement system to detect the frequency component in the signal and stalling the measurement system before the start of the interruption. The stall period is calculated such that the processing of the signal is resumed: i) after the end of the interruption, and ii) where there is substantially no discontinuity between the phase of the frequency component in the signal at the end of the stall and in the phase of the frequency component in the signal at the beginning of the stall.

摘要翻译： 公开了一种使用测量系统测量信号的方法和装置。 信号具有要通过测量检测的频率分量。 频率分量具有变化的相位。 信号至少有一个中断。 该方法包括：利用测量系统对信号进行处理，以检测信号中的频率分量，并在开始中断之前停止测量系统。 计算停滞时间，使得恢复信号的处理：i）中断结束后，以及ii）在失速结束时的信号中的频率分量的相位和 在失速开始时的信号中的频率分量的相位。

公开(公告)号：US08386205B2

公开(公告)日：2013-02-26

申请号：US12764937

申请日：2010-04-21

申请人： Sheng-Han Lin

发明人： Sheng-Han Lin

IPC分类号： G01D3/00

CPC分类号： G11B5/455 ,  G11B5/5582 ,  G11B20/182 ,  G11B2220/2516 ,  G11B2220/2537 ,  G11B2220/90

摘要： A rotational vibration test system and method of a storage system set storage devices of the storage system, fan speeds of an electric fan of the storage system, and access patterns of the storage system. The electric fan is controlled to run at the fan speeds. The storage system is accessed according to the access patterns. Accordingly, the storage devices are input/output performance tested. Test results of the storage devices are output to an output device.

摘要翻译： 存储系统的旋转振动测试系统和方法，存储系统的存储设备，存储系统的电风扇的风扇速度，以及存储系统的访问模式。 电风扇以风扇速度运行。 根据访问模式访问存储系统。 因此，对存储设备进行输入/输出性能测试。 将存储设备的测试结果输出到输出设备。

公开(公告)号：US08159919B1

公开(公告)日：2012-04-17

申请号：US12360587

申请日：2009-01-27

申请人： Peter J. Kivits

发明人： Peter J. Kivits

IPC分类号： G11B7/00

CPC分类号： G11B7/1267 ,  G11B7/00456 ,  G11B20/10027 ,  G11B20/10407 ,  G11B20/182 ,  G11B2220/215

摘要： Aspects of the disclosure can provide a method to optimize optical recording. The method can include recording a pre-defined pattern on an optical medium according to a first write strategy, measuring edge timings corresponding to the pre-defined pattern recorded on the optical medium, determining a second write strategy including at least timing modifications to the first write strategy, and recording data on the optical medium according to the second write strategy. The timing modifications can be determined based on the measured edge timings, edge timing targets for desired edge timings and edge timing sensitivities to the timing modifications.

摘要翻译： 本公开的方面可以提供优化光学记录的方法。 该方法可以包括根据第一写入策略在光学介质上记录预定义的图案，测量对应于记录在光学介质上的预定义图案的边缘定时，确定第二写入策略，该第二写入策略至少包括对第一 写入策略，以及根据第二写入策略在光学介质上记录数据。 可以基于所测量的边缘定时，期望边缘定时的边缘定时目标和对定时修改的边缘定时灵敏度来确定时序修改。

公开(公告)号：US08000045B2

公开(公告)日：2011-08-16

申请号：US12500765

申请日：2009-07-10

申请人： Masami Makuuchi ,  Masayoshi Takahashi ,  Yoshihiro Sakurai ,  Hideki Mochizuki

发明人： Masami Makuuchi ,  Masayoshi Takahashi ,  Yoshihiro Sakurai ,  Hideki Mochizuki

IPC分类号： G11B27/36 ,  G11B5/09 ,  G11B5/596

CPC分类号： G11B5/455 ,  G11B5/4555 ,  G11B5/84 ,  G11B19/048 ,  G11B20/14 ,  G11B20/1816 ,  G11B20/182 ,  G11B2020/1281 ,  G11B2020/1484 ,  G11B2220/2516

摘要： The present invention is designed to support plural servo patterns by setting a portion of the information of the servo pattern as a detection pattern, comparing the demodulated pattern of the portion of the information with the detection pattern, and controlling an operation timing of a test according to a result of the comparison.

摘要翻译： 本发明被设计为通过将伺服模式的信息的一部分设置为检测模式来支持多个伺服模式，将信息的部分的解调模式与检测模式进行比较，并且根据检测模式控制测试的操作定时 比较的结果。

公开(公告)号：US07760598B2

公开(公告)日：2010-07-20

申请号：US11542957

申请日：2006-10-04

申请人： Joseph W. Baumgarte

发明人： Joseph W. Baumgarte

IPC分类号： G11B20/10

CPC分类号： G11B27/36 ,  G11B19/048 ,  G11B20/182

摘要： A system and methods for evaluating the response of an optical digital disk player to anomalies in optical digital disks are provided. The system includes a simulator configured to provide digital simulated output signals simulating the output of an optical digital disk player during playback of an optical digital disk having an anomaly. The system also includes digital-to-analog converter circuitry to convert the digital simulated output signals to analog simulated output signals and provide the analog simulated output signals to processing circuitry. The processing circuitry generates control signals based on the value of the analog simulated output signals, and provides the control signals as outputs.

摘要翻译： 提供了一种用于评估光学数字盘播放机对光学数字盘中的异常的响应的系统和方法。 该系统包括模拟器，其被配置为在具有异常的光学数字盘的回放期间提供模拟光学数字盘播放器的输出的数字模拟输出信号。 该系统还包括数模转换器电路，将数字模拟输出信号转换为模拟仿真输出信号，并将模拟仿真输出信号提供给处理电路。 处理电路基于模拟仿真输出信号的值产生控制信号，并提供控制信号作为输出。

公开(公告)号：US20090113249A1

公开(公告)日：2009-04-30

申请号：US11976370

申请日：2007-10-24

申请人： Tao Liu ,  Qiu-Yue Duan ,  Tom Chen ,  Win-Harn Liu

发明人： Tao Liu ,  Qiu-Yue Duan ,  Tom Chen ,  Win-Harn Liu

IPC分类号： G06F11/14

CPC分类号： G11B20/182

摘要： A stress testing method of a file system includes traversing local or network storage devices with a drive letter; detecting a network mapping path of the network storage devices; calculating an absolute path of all the storage devices through a mounted point and a system volume; collecting the above information to update the path information of the file system; and then calling a corresponding test algorithm and stressing strategy according to different types of storage devices, so as to perform the stress test. The stress testing method can make the file system display storage devices without a drive letter, and call appropriate testing methods and stressing strategies for different types of storage devices, so the depth and scope of the stress testing for file system are expanded, the accuracy of the test is enhanced, and the problem of occupying too many system resources is avoided.

摘要翻译： 文件系统的压力测试方法包括遍历具有驱动器号的本地或网络存储设备; 检测网络存储设备的网络映射路径; 通过安装点和系统卷计算所有存储设备的绝对路径; 收集上述信息以更新文件系统的路径信息; 然后根据不同类型的存储设备调用相应的测试算法和应力策略，进行压力测试。 压力测试方法可以使文件系统不用驱动器号显示存储设备，并对不同类型的存储设备调用适当的测试方法和强调策略，扩大文件系统的压力测试的深度和范围， 测试得到加强，避免了占用太多系统资源的问题。

公开(公告)号：US20080266692A1

公开(公告)日：2008-10-30

申请号：US12110177

申请日：2008-04-25

申请人： Hitoshi Komoriya ,  Michinaga Yamagishi ,  Toru Yokohata

发明人： Hitoshi Komoriya ,  Michinaga Yamagishi ,  Toru Yokohata

IPC分类号： G11B5/02 ,  G11B27/36 ,  G11B21/02

CPC分类号： G11B19/045 ,  G11B5/59655 ,  G11B5/59688 ,  G11B20/1217 ,  G11B20/182 ,  G11B2020/1232 ,  G11B2020/1281 ,  G11B2020/1298 ,  G11B2220/2516

摘要： A data writing method to write data on a disk in a disk device. The data is written in one radial direction. The method includes detecting a first deviation amount from a center in a current track and sector in the direction of a track on which data was previously written. A second deviation amount from the center in the current track and sector in the direction of a track on which data will be subsequently written is also detected. Data is written on the current track when the first deviation amount is equal to or smaller than a first threshold and the second deviation amount is equal to or smaller than a second threshold.

摘要翻译： 一种在磁盘设备中的磁盘上写入数据的数据写入方法。 数据以一个径向写入。 该方法包括从先前写入数据的轨道的方向上检测当前轨迹中的中心和扇区的第一偏移量。 还检测到当前轨道中的中心和在其后将写入数据的轨道的方向上的扇区的第二偏移量。 当第一偏差量等于或小于第一阈值并且第二偏移量等于或小于第二阈值时，将数据写入当前轨迹。

公开(公告)号：US20080084802A1

公开(公告)日：2008-04-10

申请号：US11542957

申请日：2006-10-04

申请人： Joseph W. Baumgarte

发明人： Joseph W. Baumgarte

IPC分类号： G11B20/18

CPC分类号： G11B27/36 ,  G11B19/048 ,  G11B20/182

摘要： A system and methods for evaluating the response of an optical digital disk player to anomalies in optical digital disks are provided. The system includes a simulator configured to provide digital simulated output signals simulating the output of an optical digital disk player during playback of an optical digital disk having an anomaly. The system also includes digital-to-analog converter circuitry to convert the digital simulated output signals to analog simulated output signals and provide the analog simulated output signals to processing circuitry. The processing circuitry generates control signals based on the value of the analog simulated output signals, and provides the control signals as outputs.

摘要翻译： 提供了一种用于评估光学数字盘播放机对光学数字盘中的异常的响应的系统和方法。 该系统包括模拟器，其被配置为在具有异常的光学数字盘的回放期间提供模拟光学数字盘播放器的输出的数字模拟输出信号。 该系统还包括数模转换器电路，将数字模拟输出信号转换为模拟仿真输出信号，并将模拟仿真输出信号提供给处理电路。 处理电路基于模拟仿真输出信号的值产生控制信号，并提供控制信号作为输出。