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21. 发明申请

US20060203370A1 Data storage device and write processing method for data storage device 失效
标题翻译：数据存储设备和数据存储设备的写入处理方法
公开(公告)号：US20060203370A1
公开(公告)日：2006-09-14
申请号：US11182643
申请日：2005-07-15
申请人： Atsushi Suzuki , Takeshi Hara , Shigenori Yanagi
发明人： Atsushi Suzuki , Takeshi Hara , Shigenori Yanagi
IPC分类号： G11B5/09 , G11B19/02 , G11B5/596
CPC分类号： G11B19/04 , G11B5/40 , G11B5/59616
摘要： A data storage device executes sector guarantee processing at an unexpected power supply disconnection. The sector guarantee processing can be accurately performed even if the fluctuation of power supply voltage during normal operation is high. The voltage of the power supply is monitored via an A/D converter. The control unit calculates a voltage change value, which is a relative value of the detected voltage of the power supply, and judges power supply disconnection by the level of the voltage change value, to perform sector guarantee processing. The voltage fluctuation during normal operation and the voltage fluctuation at power supply disconnection can be distinguished, power supply disconnection can be accurately detected, and write disable status can be judged.
摘要翻译：数据存储装置在意外的电源断开时执行扇区保证处理。即使在正常操作期间电源电压的波动较大，也能够准确地进行扇区保证处理。通过A / D转换器监视电源电压。控制单元计算作为电源的检测电压的相对值的电压变化值，并根据电压变化值的电平来判断电源断开，进行扇区保证处理。可以区分正常工作期间的电压波动和电源断开时的电压波动，可以精确检测电源断开，并且可以判断写入禁止状态。

22. 发明授权

US07697234B2 Storage apparatus, control method, and control device which enable or disable compensation control 有权
标题翻译：使能或禁止补偿控制的存储装置，控制方法和控制装置
公开(公告)号：US07697234B2
公开(公告)日：2010-04-13
申请号：US12034147
申请日：2008-02-20
申请人： Yoshinari Higashino , Shigenori Yanagi
发明人： Yoshinari Higashino , Shigenori Yanagi
IPC分类号： G11B5/596
CPC分类号： G11B5/5582 , G11B5/596 , G11B19/042
摘要： A rotation disturbance compensation control unit applies a compensation signal to a positioning control unit so as to cancel out rotation disturbance vibration components detected by using acceleration velocity sensors. At predetermined timing, a position error detection unit detects respective position errors of the case in which the rotation disturbance compensation control unit is turned on and the case in which it is turned off. A compensation control switching unit switches the rotation disturbance compensation control unit to be on if the position error of the case in which the compensation control of rotation disturbance is turned on is small and switches the compensation control switching unit to be off if the position error of the case in which the compensation control of rotation disturbance is turned off is small.
摘要翻译：旋转扰动补偿控制单元将补偿信号施加到定位控制单元，以抵消通过使用加速度速度传感器检测的旋转干扰振动分量。在预定定时，位置误差检测单元检测旋转扰动补偿控制单元接通的情况和其关闭的情况下的各个位置误差。如果旋转扰动的补偿控制导通的情况的位置误差小，则补偿控制切换单元将旋转扰动补偿控制单元切换为接通，如果位置误差为旋转扰动的补偿控制关闭的情况小。

23. 发明申请

US20080291576A1 CONTROLLER, STORAGE APPARATUS AND CONTROL METHOD 失效
标题翻译：控制器，存储设备和控制方法
公开(公告)号：US20080291576A1
公开(公告)日：2008-11-27
申请号：US12123938
申请日：2008-05-20
申请人： Takahiro Aoki , Shigenori Yanagi
发明人： Takahiro Aoki , Shigenori Yanagi
IPC分类号： G11B21/16
CPC分类号： G11B19/043 , G11B19/042 , G11B21/12
摘要： A controller controls movement of a head mounted in a storage apparatus based on a signal output from an acceleration sensor. A head movement control section which controls movement of the head to a target position on a storage medium and a head unload control section unloads the head to an unload position based on (1) the time at which a drop or initial impact is first detected based on a signal output from the acceleration sensor and (2) threshold information, which includes a first threshold representing a standard strength of the signal output from the acceleration sensor at the time of drop and a second threshold representing a standard strength of the signal output from the acceleration sensor at the time of initially receiving impact.
摘要翻译：控制器基于从加速度传感器输出的信号来控制安装在存储装置中的头的移动。基于（1）基于（1）首先检测到下降或初始冲击的时间，头部移动控制部分，其控制头部到存储介质上的目标位置的移动和头部卸载控制部分将头部卸载到卸载位置在加速度传感器输出的信号上，以及（2）阈值信息，其包括表示在下降时从加速度传感器输出的信号的标准强度的第一阈值，以及表示从加速度传感器在初始接收冲击时。

24. 发明授权

US07248040B2 Disk testing apparatus, disk testing method, computer-readable recording medium that stores a disk testing program, and disk apparatus including a disk to be tested 失效
标题翻译：磁盘测试装置，磁盘测试方法，存储磁盘测试程序的计算机可读记录介质和包括要测试磁盘的磁盘设备
公开(公告)号：US07248040B2
公开(公告)日：2007-07-24
申请号：US11022607
申请日：2004-12-27
申请人： Masaki Makifuchi , Shigenori Yanagi
发明人： Masaki Makifuchi , Shigenori Yanagi
IPC分类号： G01R33/12
CPC分类号： G11B20/1816 , G11B5/012 , G11B5/455 , G11B19/04 , G11B27/36 , G11B2005/001 , G11B2005/0013
摘要： A disk testing apparatus that sets a predetermined condition of a recording density for a disk apparatus, and conducts a test relating to at least readout of data stored in the disk apparatus includes a condition relaxing unit that relaxes, when a result of the test is unsatisfactory, a condition of the recording density currently set for the disk apparatus to set a new condition of the recording density; and a re-testing unit that re-conducts the test on the disk apparatus to which the new condition is set.
摘要翻译：设置盘装置的记录密度的预定条件的盘测试装置，并且进行至少读出存储在盘装置中的数据的测试包括条件缓和单元，当测试结果不令人满意时松弛当前为盘装置设定的记录密度的条件来设定记录密度的新条件; 以及重新测试单元，其对新设置的盘装置重新进行测试。

25. 发明申请

US20050243675A1 Rotation control method and storage apparatus 失效
标题翻译：旋转控制方法和存储装置
公开(公告)号：US20050243675A1
公开(公告)日：2005-11-03
申请号：US11175096
申请日：2005-07-05
申请人： Takashi Masaki , Toru Ikeda , Shigenori Yanagi
发明人： Takashi Masaki , Toru Ikeda , Shigenori Yanagi
IPC分类号： G11B7/004 , G11B7/0045 , G11B7/005 , G11B7/09 , G11B7/095 , G11B19/28 , G11B7/00
CPC分类号： G11B19/28 , G11B7/0045 , G11B7/005 , G11B7/0901 , G11B7/0908
摘要： A storage apparatus rotates an optical recording medium at two or more kinds of rotational speeds. The rotational speed is decreased when a read or write margin becomes less than or equal to a first predetermined value or, when a frequency of generation of a servo abnormality of a tracking servo and/or a focus servo is greater than or equal to a first predetermined frequency. On the other hand, the rotational speed is increased when the read or write margin becomes greater than or equal to a second predetermined value or, when the frequency of generation of the servo abnormality of the tracking servo and/or the focus servo is less than or equal to a second predetermined frequency.
摘要翻译：存储装置以两种或多种旋转速度旋转光学记录介质。当读或写余量小于或等于第一预定值时，或者当跟踪伺服和/或聚焦伺服的伺服异常的产生频率大于或等于第一预定值时，转速降低预定频率。另一方面，当读取或写入余量变得大于或等于第二预定值时，转速增加，或者当跟踪伺服和/或聚焦伺服的伺服异常的产生频率小于或等于第二预定频率。

26. 发明授权

US06947361B2 Data reproduction apparatus, data recording and reproduction apparatus, and method for reproducing recorded data 失效
标题翻译：数据再现装置，数据记录和再现装置以及用于再现记录数据的方法
公开(公告)号：US06947361B2
公开(公告)日：2005-09-20
申请号：US09956266
申请日：2001-09-19
申请人： Satoshi Furuta , Shigenori Yanagi
发明人： Satoshi Furuta , Shigenori Yanagi
IPC分类号： G11B20/14 , G11B7/005 , G11B11/105 , G11B20/10 , G11B5/09
CPC分类号： G11B20/10425 , G11B7/005 , G11B20/10 , G11B20/10009 , G11B20/10055
摘要： A data reproduction apparatus includes first and second sampling parts which sample a reproduced signal from a recording medium in synchronism with first and second clock signals synchronizing respectively with leading and trailing edges of the reproduced signal and output leading and trailing sampled values, respectively, and a combination part which generates combined sampled values based on the leading and trailing sampled values. Recorded data is reproduced based on transition states of the combined sampled values output from the combination part in accordance with a maximum likelihood decoding technique corresponding to a predetermined partial response waveform.
摘要翻译：数据再现装置包括第一和第二采样部分，它们与分别与再现信号的前沿和后沿同步的第一和第二时钟信号同步地从记录介质中采样再现信号，并分别输出前导和后采样值，组合部分，其基于前导和后采样值生成组合采样值。根据与预定的部分响应波形相对应的最大似然解码技术，基于从组合部分输出的组合采样值的转换状态来再现记录数据。

27. 发明授权

US06870803B2 Information storage apparatus and information reproducing method for reducing cross talk from a region adjacent a recorded information mark 失效
标题翻译：用于减少与记录的信息标记相邻的区域的串扰的信息存储装置和信息再现方法
公开(公告)号：US06870803B2
公开(公告)日：2005-03-22
申请号：US09820537
申请日：2001-03-29
申请人： Yuji Karakawa , Shigenori Yanagi
发明人： Yuji Karakawa , Shigenori Yanagi
IPC分类号： G11B20/10 , G11B7/004 , G11B7/005 , G11B7/0055 , G11B7/006 , G11B7/007 , G11B11/105 , G11B3/90
CPC分类号： G11B7/00718 , G11B7/005 , G11B11/10515
摘要： An information storage apparatus includes a mark reading section for reading a mark written on an information storage medium. A recording state changing section is provided for changing a recording state in an adjacent region situated next to a region from which the mark reading section fails to read a mark, so as to reduce cross talk caused by the adjacent region. The mark reading section reads the mark in the failed region again after the recording state changing section changes the recording state in the adjacent region.
摘要翻译：信息存储装置包括用于读取写在信息存储介质上的标记的标记读取部分。提供记录状态改变部分，用于改变位于标记读取部分不能读取标记的区域旁边的相邻区域中的记录状态，以便减少由相邻区域引起的串扰。标记读取部分在记录状态改变部分改变相邻区域中的记录状态之后再次读取故障区域中的标记。

28. 发明授权

US06765849B2 Method and apparatus for reproducing data from a recording medium using light beam with adjustable power 失效
标题翻译：使用具有可调节功率的光束从记录介质再现数据的方法和装置
公开(公告)号：US06765849B2
公开(公告)日：2004-07-20
申请号：US09961974
申请日：2001-09-24
申请人： Yuji Karakawa , Shigenori Yanagi
发明人： Yuji Karakawa , Shigenori Yanagi
IPC分类号： G11B700
CPC分类号： G11B7/126 , G11B7/005 , G11B7/1267
摘要： A storage apparatus uses a light beam to reproduce information from a recording medium having an information region with a recording format which includes a header including position information and a recording field including a data field for recording data. The storage apparatus is provided with a light source for emitting the light beam, and a control section for controlling a power L2 of the light beam in a vicinity of a start of the recording field to become higher than a power L3 at the data field of the recording field.
摘要翻译：存储装置使用光束从具有包括包括位置信息的标题和包括用于记录数据的数据字段的记录字段的记录格式的信息区域的记录介质再现信息。存储装置设置有用于发射光束的光源，以及控制部分，用于控制在记录场开始附近的光束的功率L2变得高于数据场的功率L3 录音领域。

29. 发明授权

US06628581B1 Servo control method and servo controller of a storage device, and its storage device 失效
标题翻译：存储装置的伺服控制方法和伺服控制器及其存储装置
公开(公告)号：US06628581B1
公开(公告)日：2003-09-30
申请号：US09550894
申请日：2000-04-17
申请人： Wataru Tsukahara , Shigenori Yanagi
发明人： Wataru Tsukahara , Shigenori Yanagi
IPC分类号： G11B700
CPC分类号： G11B7/0901 , G11B7/0908 , G11B7/0941 , G11B11/10576
摘要： This invention relates to a servo-control method and servo-controller of a memory storage device, as well as the memory storage device, for positioning the reading position of a head on a target position. It suppresses phase lag in the high region while preventing a decrease in follow-ability. This invention comprises a storage medium 72, head 76, actuator 60, detection circuit 48, and control circuit 16. The detection circuit 48 detects the amount of shift between the reading position of the head 76 and a target position. The control circuit 16 performs PID calculation for the shift amount and outputs an instruction value for the actuator 60. There is a limiter 121 for limiting the calculated result of the differential component of this PID calculation to a specified value. Only the high region is limited and the low region is not limited, thus it is possible to suppress phase lag in the high while maintaining follow-ability.
摘要翻译：本发明涉及存储器存储装置的伺服控制方法和伺服控制器，以及用于将头部的读取位置定位在目标位置上的存储器存储装置。在高区域抑制相位滞后，同时防止后续能力下降。本发明包括存储介质72，头76，致动器60，检测电路48和控制电路16.检测电路48检测头部76的读取位置与目标位置之间的偏移量。控制电路16对移动量执行PID计算，并输出致动器60的指令值。存在限制器121，用于将该PID计算的差分分量的计算结果限制为指定值。只有高区域是有限的，低区域不受限制，因此可以在保持跟踪性的同时抑制高的相位滞后。

30. 发明授权

US06574177B2 Data read method for remedying low-quality read data and storage apparatus employing such a data read method 失效
标题翻译：数据读取方法，用于补救使用这种数据读取方法的低质量读取数据和存储设备
公开(公告)号：US06574177B2
公开(公告)日：2003-06-03
申请号：US09794560
申请日：2001-02-27
申请人： Hiroshi Tani , Shigenori Yanagi
发明人： Hiroshi Tani , Shigenori Yanagi
IPC分类号： G11B390
CPC分类号： G11B20/1879 , G11B7/005
摘要： A data read method includes a steps of reading identical data from one region on a recording medium a plurality of times, a step of comparing the data read the plurality of times in units of one or a plurality of bits to obtain comparison results, and generating read data made up of data values having a highest frequency for each unit based on the comparison results, and a step of carrying out an error detecting and correcting process with respect to the read data.
摘要翻译：数据读取方法包括从记录介质上的一个区域多次读取相同的数据的步骤，以一个或多个位为单位比较读取多次的数据以获得比较结果的步骤，以及生成基于比较结果，读取由每个单元具有最高频率的数据值组成的数据，以及针对读取的数据执行错误检测和校正处理的步骤。

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