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公开(公告)号：US20080068987A1
公开(公告)日：2008-03-20
申请号：US11897054
申请日：2007-08-28
申请人： Mutsuya Hida , Akira Kojima , Takeshi Shikama , Yoshinori Makita
发明人： Mutsuya Hida , Akira Kojima , Takeshi Shikama , Yoshinori Makita
CPC分类号： H04L12/42
摘要： Embodiments of the present invention provide a loop network system and data storage devices connected thereto where the data storage devices (nodes) can perform effective pieces of processing and the probability of error occurrence can be reduced. One embodiment according to the present invention includes a Fibre Channel Arbitrated Loop network, a Host controller and multiple HDDs connected thereto. A port on the network outputs parameters to control loop initialization processing as well as a LIP Order Set. Each port performs loop initialization processing according to the received parameters and transfers the received LIP Order Set with parameters appended to the down stream.
摘要翻译： 本发明的实施例提供了一种环路网络系统和连接到其上的数据存储设备，其中数据存储设备（节点）可以执行有效的处理部分并且可以减少错误发生的概率。 根据本发明的一个实施例包括光纤通道仲裁环路网络，主机控制器和与其连接的多个HDD。 网络上的端口输出参数以控制回路初始化处理以及LIP订单集。 每个端口根据接收到的参数执行循环初始化处理，并将附加的参数传送给接收到的LIP订单集。
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2.发明授权Data storage device with re-allocation processing which determines an order in which re-allocation processing is executed for defective sectors 失效具有重新分配处理的数据存储装置，其确定对缺陷扇区执行重新分配处理的顺序公开(公告)号：US07607039B2
公开(公告)日：2009-10-20
申请号：US11388948
申请日：2006-03-24
申请人： Takeshi Shikama , Eiji Hagi , Mutsuya Hida , Hisatoshi Iwata
发明人： Takeshi Shikama , Eiji Hagi , Mutsuya Hida , Hisatoshi Iwata
IPC分类号： G06F11/00
CPC分类号： G11B20/1883 , G11B20/1816 , G11B2020/1893 , G11B2220/20 , G11B2220/2516
摘要： Embodiments of the invention improve the security of data written on a magnetic disk by performing re-allocation processing starting from a sector whose defect is large in automatic re-allocation processing. According to one embodiment of the present invention, after the reliability of each of data sectors that have been read out from a magnetic disk according to a read command is determined, re-allocation processing on the data sectors is performed in the order of increasing reliability. As a result, within a limited period of time, it is possible to replace by priority a data sector where there is a high possibility that data recovery will be unable to be achieved. This makes it possible to increase the security of data and the reliability of the HDD. The reliability of each data sector is determined on the basis of the number of bytes corrected by ECC.
摘要翻译： 本发明的实施例通过在自动重新分配处理中从缺陷较大的扇区开始执行重新分配处理来提高写入磁盘的数据的安全性。 根据本发明的一个实施例，在确定了根据读取命令从磁盘读出的每个数据扇区的可靠性之后，以可靠性增加的顺序对数据扇区进行重新分配处理 。 结果，在有限的时间内，可以优先地替换数据扇区，其中存在无法实现数据恢复的可能性高的数据扇区。 这使得可以增加数据的安全性和HDD的可靠性。 每个数据扇区的可靠性是根据由ECC校正的字节数确定的。
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公开(公告)号：US20060218211A1
公开(公告)日：2006-09-28
申请号：US11388948
申请日：2006-03-24
申请人： Takeshi Shikama , Eiji Hagi , Mutsuya Hida , Hisatoshi Iwata
发明人： Takeshi Shikama , Eiji Hagi , Mutsuya Hida , Hisatoshi Iwata
IPC分类号： G06F17/30
CPC分类号： G11B20/1883 , G11B20/1816 , G11B2020/1893 , G11B2220/20 , G11B2220/2516
摘要： Embodiments of the invention improve the security of data written on a magnetic disk by performing re-allocation processing starting from a sector whose defect is large in automatic re-allocation processing. According to one embodiment of the present invention, after the reliability of each of data sectors that have been read out from a magnetic disk according to a read command is determined, re-allocation processing on the data sectors is performed in the order of increasing reliability. As a result, within a limited period of time, it is possible to replace by priority a data sector where there is a high possibility that data recovery will be unable to be achieved. This makes it possible to increase the security of data and the reliability of the HDD. The reliability of each data sector is determined on the basis of the number of bytes corrected by ECC.
摘要翻译： 本发明的实施例通过在自动重新分配处理中从缺陷较大的扇区开始执行重新分配处理来提高写入磁盘的数据的安全性。 根据本发明的一个实施例，在确定了根据读取命令从磁盘读出的每个数据扇区的可靠性之后，以可靠性增加的顺序对数据扇区进行重新分配处理 。 结果，在有限的时间内，可以优先地替换数据扇区，其中存在无法实现数据恢复的可能性高的数据扇区。 这使得可以增加数据的安全性和HDD的可靠性。 每个数据扇区的可靠性是根据由ECC校正的字节数确定的。
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公开(公告)号：US20070220402A1
公开(公告)日：2007-09-20
申请号：US11652388
申请日：2007-01-10
申请人： Eiji Hagi , Takeshi Shikama , Takayuki Umemoto , Akira Kojima
发明人： Eiji Hagi , Takeshi Shikama , Takayuki Umemoto , Akira Kojima
IPC分类号： G11C29/00
CPC分类号： G11B20/10527 , G11B2020/1062 , G11B2020/10675 , G11B2220/2516
摘要： Embodiments in accordance with the present invention provide an auxiliary storage device that prevents performance degradation and collects data useful for buffer failure analysis. In one embodiment, a data set including user data and cyclic redundancy check (CRC) information is temporarily stored in a buffer. If a CRC error is detected in a data set that is read from the buffer during a data write or data read, the contents of the data set and the affected buffer address are recorded on a nonvolatile recording medium. Further, the buffer address is disabled. This makes it possible to store the data for reproducing a soft error that occurs in the buffer and prevent the performance of the auxiliary storage device from being degraded by a buffer error.
摘要翻译： 根据本发明的实施例提供一种辅助存储装置，其防止性能下降并收集对缓冲器故障分析有用的数据。 在一个实施例中，包括用户数据和循环冗余校验（CRC）信息的数据集被临时存储在缓冲器中。 如果在数据写入或数据读取期间从缓冲器读取的数据集中检测到CRC错误，则数据集的内容和受影响的缓冲器地址被记录在非易失性记录介质上。 此外，缓冲区地址被禁用。 这使得可以存储用于再现缓冲器中出现的软错误的数据，并且防止辅助存储装置的性能被缓冲器错误降级。
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5.发明申请Failure prediction method for magnetic disk devices, and a magnetic disk device using the same 失效磁盘装置的故障预测方法以及使用其的磁盘装置公开(公告)号：US20060034008A1
公开(公告)日：2006-02-16
申请号：US11193925
申请日：2005-07-28
IPC分类号： G11B5/09
CPC分类号： G11B19/04 , G11B20/18 , G11B20/1816
摘要： A warning against the possible failure is accurately sent from the magnetic disk device to a host device. In one embodiment, error indices per unit time are stored discontinuously/continuously for each magnetic head, and if the new index (partial integral error rate) updated with the stored multiple error indices as the items to be monitored satisfies required conditions, this state is diagnosed as an abnormality or a pseudo-abnormality, and reported to the host device. The partial integral error rate is updated with an increase in the number of sets of error indices. Each time a new set of error indices per unit time are stored, the oldest of the existing error indices to be monitored is discarded and one of the new error indexes is added. In this way, a new partial integral error rate is calculated from the fixed number of new sets of error indices to be monitored. When the partial integral error rate increases above a second required threshold, this state is reported as an abnormality to the host device since a failure is most likely to occur in the magnetic disk device.
摘要翻译： 从磁盘装置向主机装置准确地发送可能发生故障的警告。 在一个实施例中，对于每个磁头，每单位时间的误差指数被不连续/连续地存储，并且如果作为被监视项目的所存储的多个误差索引更新的新索引（部分积分误差率）满足所需条件，则该状态为 诊断为异常或伪异常，并报告给主机。 部分积分误差率随误差指数集合数量的增加而更新。 每次存储每单位时间新的一组错误索引时，将丢弃要监视的最旧的现有错误索引，并添加一个新的错误索引。 以这种方式，从要监视的新的误差指数集合计算新的部分积分误差率。 当部分积分误差率增加到高于第二所需阈值时，该状态被报告为主机设备的异常，因为在磁盘设备中最可能发生故障。
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6.发明授权Failure prediction method for magnetic disk devices, and a magnetic disk device using the same 失效磁盘装置的故障预测方法以及使用其的磁盘装置公开(公告)号：US07369339B2
公开(公告)日：2008-05-06
申请号：US11193925
申请日：2005-07-28
CPC分类号： G11B19/04 , G11B20/18 , G11B20/1816
摘要： A warning against the possible failure is accurately sent from the magnetic disk device to a host device. In one embodiment, error indices per unit time are stored discontinuously/continuously for each magnetic head, and if the new index (partial integral error rate) updated with the stored multiple error indices as the items to be monitored satisfies required conditions, this state is diagnosed as an abnormality or a pseudo-abnormality, and reported to the host device. The partial integral error rate is updated with an increase in the number of sets of error indices. Each time a new set of error indices per unit time are stored, the oldest of the existing error indices to be monitored is discarded and one of the new error indexes is added. In this way, a new partial integral error rate is calculated from the fixed number of new sets of error indices to be monitored. When the partial integral error rate increases above a second required threshold, this state is reported as an abnormality to the host device since a failure is most likely to occur in the magnetic disk device.
摘要翻译： 从磁盘装置向主机装置准确地发送可能发生故障的警告。 在一个实施例中，对于每个磁头，每单位时间的误差指数被不连续/连续地存储，并且如果作为被监视项目的所存储的多个误差索引更新的新索引（部分积分误差率）满足所需条件，则该状态为 诊断为异常或伪异常，并报告给主机。 部分积分误差率随误差指数集合数量的增加而更新。 每次存储每单位时间新的一组错误索引时，将丢弃要监视的最旧的现有错误索引，并添加一个新的错误索引。 以这种方式，从要监视的新的误差指数集合计算新的部分积分误差率。 当部分积分误差率增加到高于第二所需阈值时，该状态被报告为主机设备的异常，因为在磁盘设备中最可能发生故障。
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公开(公告)号：US20100149684A1
公开(公告)日：2010-06-17
申请号：US12639014
申请日：2009-12-16
CPC分类号： G11B19/122 , G11B19/041 , G11B20/00086 , G11B20/0021 , G11B20/00246 , G11B20/00413 , G11B20/10527 , G11B20/1217 , G11B20/18 , G11B2020/1062 , G11B2020/10759 , G11B2020/1222 , G11B2220/2516 , H04L1/0082
摘要： A data-storage device with a security function for user data stored in a data-storage medium. The data-storage device includes: the data-storage medium for storing data; an authentication processing section for performing an authentication process with a key obtained from a host; an error correction circuit for performing error correction in reading data at an address designated by a read command from a host which has been recognized as an authorized user for analysis access by the authentication processing section; and an analysis processing section for generating data indicating the positions of the error correction and transferring the data to the host.
摘要翻译： 一种具有用于存储在数据存储介质中的用户数据的安全功能的数据存储设备。 数据存储装置包括：用于存储数据的数据存储介质; 认证处理部，其使用从主机获得的密钥进行认证处理; 误差校正电路，用于在由认证处理部分被识别为授权用户进行分析访问的主机的读取命令指定的地址读取数据时进行纠错; 以及分析处理部分，用于产生指示纠错的位置并将数据传送到主机的数据。
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公开(公告)号：US10200564B2
公开(公告)日：2019-02-05
申请号：US15397768
申请日：2017-01-04
申请人： Yuki Fujii , Yasunobu Youda , Yohei Osanai , Tatsuaki Nagano , Satoshi Narai , Toshiyuki Horikawa , Takuji Kawai , Daisuke Imaki , Takayuki Andoh , Susumu Miyazaki , Tetsuo Inui , Koichi Ono , Takeshi Shikama , Shingo Shiramura , Hideo Tanaka
发明人： Yuki Fujii , Yasunobu Youda , Yohei Osanai , Tatsuaki Nagano , Satoshi Narai , Toshiyuki Horikawa , Takuji Kawai , Daisuke Imaki , Takayuki Andoh , Susumu Miyazaki , Tetsuo Inui , Koichi Ono , Takeshi Shikama , Shingo Shiramura , Hideo Tanaka
摘要： An image reading device includes: a reading unit; a first detecting unit that detects a position of the reading unit in the sub-scanning direction; a second detecting unit that detects a position of the reading unit in the sub-scanning direction; and a calculating unit that calculates a skew quantity and a skew direction of the reading unit, based on a difference, introduced by the skew, between a travel distance by which the reading unit has travelled from a measurement reference position located on an upstream side of the first detecting unit and the second detecting unit in a moving direction to a point where the reading unit is detected by the first detecting unit, and a travel distance by which the reading unit has travelled from the measurement reference position to a point where the reading unit is detected by the second detecting unit.
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公开(公告)号：US08879969B2
公开(公告)日：2014-11-04
申请号：US13644172
申请日：2012-10-03
申请人： Takeshi Shikama , Masayuki Hayashi , Kunihiro Komai , Tatsuya Miyadera , Motohiro Kawanabe , Yoshinori Shirasaki , Hiroaki Ikeda , Akinori Yamaguchi , Takuhei Yokoyama
发明人： Takeshi Shikama , Masayuki Hayashi , Kunihiro Komai , Tatsuya Miyadera , Motohiro Kawanabe , Yoshinori Shirasaki , Hiroaki Ikeda , Akinori Yamaguchi , Takuhei Yokoyama
CPC分类号： G03G15/0194 , G03G15/5058 , G03G2215/0141 , G03G2215/0161
摘要： An image forming apparatus can transfer a plurality of color component images onto a surface of a recording medium to form an image on the recording medium. The image forming apparatus includes a pattern generation part to generate information about an alignment pattern to be used for a calibration of an image forming, a plurality of stations each including a photosensitive drum to form an alignment pattern corresponding to each of a plurality of color components onto a carry belt or the recording medium, and a read part to detect a plurality of alignment patterns formed by the plurality of stations.
摘要翻译： 图像形成装置可以将多个颜色分量图像传送到记录介质的表面上，以在记录介质上形成图像。 图像形成装置包括图形生成部，用于生成关于图像形成校准所使用的对准图案的信息，多个工位各自包括感光鼓，以形成对应于多个颜色成分中的每一个的对准图案 携带或记录介质，以及读取部分，用于检测由多个台站形成的多个对准图案。
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10.发明授权Line-head control device, image forming apparatus, and line-head control method 有权线头控制装置，图像形成装置和线头控制方法公开(公告)号：US08817320B2
公开(公告)日：2014-08-26
申请号：US13300834
申请日：2011-11-21
申请人： Yoshinori Shirasaki , Izumi Kinoshita , Kunihiro Komai , Tatsuya Miyadera , Takeshi Shikama , Takuhei Yokoyama , Akinori Yamaguchi
发明人： Yoshinori Shirasaki , Izumi Kinoshita , Kunihiro Komai , Tatsuya Miyadera , Takeshi Shikama , Takuhei Yokoyama , Akinori Yamaguchi
CPC分类号： G06K15/1247 , G06K15/1223 , G06K15/1868
摘要： A line-head control device that controls a line head includes: a calculation unit that divides image data into a plurality of areas in sub-scanning direction and calculates a printing percentage for each of the areas; an allocation unit that allocates a total correction amount, for correcting magnification of the image data in the sub-scanning direction, to the areas according to the printing percentage for each of the areas calculated by the calculation unit; and a control unit that changes an emission period of the light emitted from the line head so as to satisfy a partial correction amount that is an allocation of the total correction amount to each of the areas, exposes the image carrier to the light emitted from the line head with the changed light emission period, thereby causing a latent image to be formed on the image carrier based on the image data.
摘要翻译： 控制行头的行头控制装置包括：计算单元，其将图像数据分割成副扫描方向的多个区域，并计算每个区域的打印百分比; 分配单元，其分配用于将副扫描方向上的图像数据的倍率校正到根据由计算单元计算出的每个区域的打印百分比的区域的总校正量; 以及控制单元，其改变从线路头发射的光的发射周期以满足作为对每个区域的总校正量的分配的部分校正量，将图像载体暴露于从 具有改变的发光周期的线头，从而基于图像数据在图像载体上形成潜像。
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