公开(公告)号：US20130003212A1

公开(公告)日：2013-01-03

申请号：US13534325

申请日：2012-06-27

申请人： Hiroshi ITAGAKI ,  Toshiyuki SHIRATORI

发明人： Hiroshi ITAGAKI ,  Toshiyuki SHIRATORI

IPC分类号： G11B20/12 ,  G11B5/008

CPC分类号： G11B27/032 ,  G11B27/107 ,  G11B2020/1062 ,  G11B2220/90 ,  H04N9/8205 ,  H04N21/4334

摘要： Provided is a method for recording data to a tape medium in such a manner as to achieve the easy management of mutually related multiple data pieces. First data and second data continuously received as a file from a higher level apparatus are accumulated in multiple buffer segments in the form of multiple successive data sets. A data structure is determined for each of the accumulated data sets. Management information indicating a result of the determination is added to the data sets, and the data sets and the management information thereof are stored into the tape medium.

摘要翻译： 提供了一种用于将数据记录到磁带介质上以便实现相互关联的多个数据段的简单管理的方法。 作为来自上级装置的文件连续接收的第一数据和第二数据以多个连续数据集的形式被累积在多个缓冲器段中。 为每个累积数据集确定数据结构。 将指示结果的管理信息添加到数据组中，并将数据集及其管理信息存储在磁带介质中。

公开(公告)号：US08009541B2

公开(公告)日：2011-08-30

申请号：US12643194

申请日：2009-12-21

申请人： Kazuhiro Ozeki ,  Shinobu Fujihara ,  Hiroshi Itagaki ,  Takeshi Ishimoto

发明人： Kazuhiro Ozeki ,  Shinobu Fujihara ,  Hiroshi Itagaki ,  Takeshi Ishimoto

IPC分类号： G11B7/00 ,  G11B5/09

CPC分类号： G06F3/061 ,  G06F3/0647 ,  G06F3/0653 ,  G06F3/0686

摘要： A device, method, and computer program product are provided for migrating pieces of data from a first recording location to a second recording location based on access frequency. The device comprises an obtaining unit for obtaining, for each of the pieces of data, first information indicating the number of times any data has been read from the first recording location after the piece of data is written to the first recording location and second information indicating the number of times the piece of data has been read from the first recording location. Moreover, the device comprises a tracking unit for tracking access frequency with respect to each of the pieces of data using the first information and the second information. Furthermore, the device comprises a determining unit for determining recording positions of each of the pieces of data in the second recording location based on the tracked access frequency.

摘要翻译： 提供了一种设备，方法和计算机程序产品，用于基于访问频率将数据片段从第一记录位置迁移到第二记录位置。 所述设备包括：获取单元，用于为每个所述数据获取指示在将所述数据写入所述第一记录位置之后从所述第一记录位置读取任何数据的次数的第一信息，以及指示 从第一记录位置读取数据的次数。 此外，该设备包括跟踪单元，用于使用第一信息和第二信息来跟踪相对于每条数据的访问频率。 此外，该设备包括：确定单元，用于基于跟踪的访问频率确定第二记录位置中的每个数据段的记录位置。

公开(公告)号：US07587546B2

公开(公告)日：2009-09-08

申请号：US11939595

申请日：2007-11-14

申请人： Hiroshi Itagaki ,  Takashi Katagiri ,  Hirokazu Nakayama

发明人： Hiroshi Itagaki ,  Takashi Katagiri ,  Hirokazu Nakayama

IPC分类号： G06F12/00 ,  G11B5/58

CPC分类号： G11B15/087

摘要： A device, method, and machine-readable medium program product for controlling a tape data storage drive are disclosed. According to one embodiment, a device is provided for controlling a tape drive operable with a tape storage medium, the device comprising a buffer memory and a first functional unit. In the described embodiment, the first functional unit is configured to identify a logical end of the tape storage medium utilizing first data specifying a quantity of data stored within the buffer memory and second data specifying a current data write position on the tape storage medium.

摘要翻译： 公开了一种用于控制磁带数据存储驱动器的装置，方法和机器可读介质程序产品。 根据一个实施例，提供一种用于控制可利用磁带存储介质操作的磁带驱动器的装置，该装置包括缓冲存储器和第一功能单元。 在所描述的实施例中，第一功能单元被配置为利用指定存储在缓冲存储器中的数据量的第一数据和指定磁带存储介质上的当前数据写入位置的第二数据来识别磁带存储介质的逻辑端。

公开(公告)号：US07350021B2

公开(公告)日：2008-03-25

申请号：US11535045

申请日：2006-09-25

申请人： Hiroshi Itagaki ,  Takashi Katagiri ,  Hironobu Nagura ,  Hirokazu Nakayama ,  Yutaka Oishi ,  Toshiyuki Shiratori ,  Terue Watanabe

发明人： Hiroshi Itagaki ,  Takashi Katagiri ,  Hironobu Nagura ,  Hirokazu Nakayama ,  Yutaka Oishi ,  Toshiyuki Shiratori ,  Terue Watanabe

IPC分类号： G06F12/00

CPC分类号： G11B5/09 ,  G11B5/00821 ,  G11B20/10527 ,  G11B20/1201 ,  G11B2020/10666 ,  G11B2020/10759 ,  G11B2220/90

摘要： A write/read control method for recording at least one datum on a magnetic tape within a predetermined distance is provided. The method includes sequentially accumulating a plurality of blocks of data of variable length in a buffer divided into fixed length segments and writing the contents of each segment to the tape. If the segment contains at least one block of data, the data is written to the tape as a dataset and if the segment does not contain any data, then a null dataset is written to the tape within the predetermined distance. The predetermined distance may vary depending upon the format of a tape drive embodying the method. In response to a request to read a block of data, reading at least one dataset that includes the requested block of data from the tape to segments in the buffer, and reading the requested block of data for invalidating data transfer of a null dataset in the segment. By invalidating the transfer of a null dataset, blocks of data separated by the null dataset can be reconstructed.

摘要翻译： 提供了一种用于在预定距离内在磁带上记录至少一个基准的写/读控制方法。 该方法包括在分成固定长度段的缓冲器中顺序地累积可变长度的多个数据块，并将每个段的内容写入磁带。 如果段包含至少一个数据块，则将数据作为数据集写入磁带，如果段不包含任何数据，则在预定距离内将空数据集写入磁带。 预定距离可以根据实施该方法的磁带驱动器的格式而变化。 响应于读取数据块的请求，读取至少一个包含所请求的数据块的数据从磁带到缓冲器中的段，并且读取所请求的数据块以使数据传输在 分割。 通过使空数据集的传输无效，可以重建由空数据集分隔的数据块。

公开(公告)号：US06950257B1

公开(公告)日：2005-09-27

申请号：US10836671

申请日：2004-04-29

申请人： Paul Merrill Greco ,  Glen Alan Jaquette ,  Hiroshi Itagaki ,  Hironobu Nagura ,  Hirokazu Nakayama ,  Satoshi Tohji ,  Terue Watanabe

发明人： Paul Merrill Greco ,  Glen Alan Jaquette ,  Hiroshi Itagaki ,  Hironobu Nagura ,  Hirokazu Nakayama ,  Satoshi Tohji ,  Terue Watanabe

IPC分类号： G11B5/008 ,  G11B5/09 ,  G11B15/087 ,  G11B15/20 ,  G11B20/10 ,  G11B20/12 ,  G11B27/032 ,  G11B27/036 ,  G11B27/30 ,  G11B27/32

CPC分类号： G11B20/1205 ,  G11B5/00813 ,  G11B15/087 ,  G11B15/20 ,  G11B20/10 ,  G11B27/032 ,  G11B27/036 ,  G11B27/3027 ,  G11B27/328 ,  G11B2020/10898 ,  G11B2020/10907 ,  G11B2220/90

摘要： Backspacing over data to overwrite the data as recorded on magnetic tape is provided logically, rather than by causing a magnetic tape to drive to backhitch. The data is written to the magnetic tape as it was before it was logically changed in order to insure that the data is preserved on tape. Recovery of the data is from a succeeding data set which logically invalidates the original data by a superseding identifier. Control logic arranges data transactions for writing to magnetic tape as data sets; and, in response to backspace and overwrite commands, or when transactions are accumulated into a succeeding data set, rewrites the original transaction adjusted in accordance with the commands as a superseding data set downstream from the original transaction, logically invalidating the original transaction by setting a superseding identifier in the superseding data set(s).

摘要翻译： 逻辑上提供了对数据进行覆盖以覆盖磁带上记录的数据，而不是通过使磁带驱动到后退。 数据被写入磁带，因为它是在逻辑上改变之前，以确保数据保存在磁带上。 来自后续数据集的数据的恢复，其通过替代标识符逻辑地使原始数据无效。 控制逻辑将数据交易写入磁带作为数据集; 并且响应于退格和重写命令，或者当事务被累积到后续数据集中时，重写根据命令调整的原始事务作为来自原始事务下游的替代数据集，通过设置原始事务来逻辑地使原始事务无效 在取代的数据集中替代标识符。

公开(公告)号：US06423766B1

公开(公告)日：2002-07-23

申请号：US09381978

申请日：1999-10-05

申请人： Hiroshi Itagaki

发明人： Hiroshi Itagaki

IPC分类号： C08L6900

CPC分类号： H01M2/1094 ,  C08L27/12 ,  C08L27/18 ,  C08L51/00 ,  C08L51/085 ,  C08L69/00 ,  C08L2666/02

摘要： A flame-retardant polycarbonate resin composition, characterized by comprising a polycarbonate resin (A) and a composite rubbery graft copolymer (B), preferably one obtained by grafting a composite rubber having a structure constituted of 1 to 99 wt. % of a polyorganosiloxane rubber component and 99 to 1 wt. % of a polyalkyl acrylate rubber component, the two components being so interwisted with each other as not to separate from each other, and a mean particle diameter of 0.01 to 0.6 &mgr;m with one or more vinyl monomers, at an (A) to (B) weight ratio of 99:1 to 90:10, and by containing, per 100 parts by weight of the sum total of the components (A) and (B), 0.3 to 1.2 parts by weight (in terms of phosphorus) of a halogen-free phosphoric ester (C) and 0.01 to 1.0 part by weight of polytetrafluoroethylene (D), the weight ratio of the graft copolymer (B) to the phosphorus resulting from the phosphoric ester (C) lying within the range of 2 to 15; and housing of office automation equipment and electrical and electronic appliances and battery packs made by molding the composition. The composition is improved in mechanical properties such as impact resistance, is excellent in moldability and flowability, and exhibits high flame retardance even without resort to any bromine compound.

摘要翻译： 一种阻燃聚碳酸酯树脂组合物，其特征在于包含聚碳酸酯树脂（A）和复合橡胶接枝共聚物（B），优选通过接枝由1-99重量％ ％的聚有机硅氧烷橡胶组分和99〜1重量％ ％的丙烯酸烷基酯橡胶组分，两种组分彼此互相不相互分离，并且在（A）至（B）的情况下，使用一种或多种乙烯基单体的平均粒径为0.01至0.6μm ）重量比为99:1至90:10，并且通过每100重量份组分（A）和（B）的总和含有0.3至1.2重量份（以磷计）的 无卤磷酸酯（C）和0.01〜1.0重量份的聚四氟乙烯（D），接枝共聚物（B）与由磷酸酯（C）产生的磷的重量比在2〜15的范围内 ; 以及办公自动化设备和通过模制组合制成的电气电子设备和电池组的住房。 组合物的机械性能如耐冲击性提高，成型性和流动性优异，并且即使不使用任何溴化合物也显示出高阻燃性。

公开(公告)号：US06357030B1

公开(公告)日：2002-03-12

申请号：US09216014

申请日：1998-12-16

申请人： Masayuki Demura ,  Tetsuya Tamura ,  Akira Sasaki ,  Hiroshi Itagaki

发明人： Masayuki Demura ,  Tetsuya Tamura ,  Akira Sasaki ,  Hiroshi Itagaki

IPC分类号： H03M1315

CPC分类号： H03M13/1515 ,  G11B20/1813 ,  H03M13/29 ,  H03M13/2903 ,  H03M13/2909

摘要： A method and apparatus for efficiently encoding an ECC block for improving writing performance of a storage device using an ECC block format having a linear code such as a Reed-Solomon code is described. When the data f1 of a part of data sectors among a plurality of data sectors which form an ECC block F1 having a PO portion q1 formed with a linear code such as a Reed-Solomon code is updated with data f2 to obtain the ECC block F2 having the updated PO portion q2, the ECC block F1+F2 of the exclusive OR of the source data part of the ECC block F1 before updating and the ECC block F2 after updating is taken, so that the XOR of f1 and f2 (i.e. f1+f2) of the data f1 to be updated and the updated data f2 is obtained. The XOR of non-updated data sectors is 0. Then, when the ECC block F1+F2 of the XOR is encoded, the PO portion in the form of the XOR q1+q2 is obtained in accordance with the linearity of the Reed-Solomon code. Thus, q2 can be gained based on the exclusive OR of q1+q2 and q1, resulting in the ability to write out the data more efficiently.

摘要翻译： 描述了一种使用具有诸如里德 - 索罗门码等线性码的ECC块格式来有效地编码用于提高存储装置的写入性能的ECC块的方法和装置。 当用数据f2更新形成具有诸如Reed-Solomon码的线性码形成的PO部分q1的ECC块F1的多个数据扇区中的数据扇区的数据f1，以获得ECC块F2 具有更新的PO部分q2时，获取更新前的ECC块F1的源数据部分与更新后的ECC块F2的异或的ECC块F1 + F2，使得f1和f2的XOR（即f1 + f2），并且获得更新数据f2。 未更新的数据扇区的异或为0.然后，当XOR的ECC块F1 + F2被编码时，根据Reed-Solomon的线性度，获得XOR q1 + q2形式的PO部分 码。 因此，可以基于q1 + q2和q1的异或获得q2，从而能够更有效地写入数据。

公开(公告)号：US5241400A

公开(公告)日：1993-08-31

申请号：US669460

申请日：1991-03-14

申请人： Hiroshi Itagaki

发明人： Hiroshi Itagaki

IPC分类号： G03G15/01 ,  H04N1/50

CPC分类号： H04N1/506 ,  G03G15/0131 ,  G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0161

摘要： A multiple picture-image formation apparatus comprises a plurality of picture-image formation devices each forming a plurality of picture images, a pattern generation device for forming a pattern for registration correction by means of the plurality of respective picture images, a carrier in which the formed pattern is carried, a reading device for reading the formed pattern, a movement device that causes the carrier to move, and a change device for changing the movement mode of the movement device between when a pattern is formed by the picture-image formation device and when the pattern is read by the reading device.

摘要翻译： 多个图像形成装置包括多个图像形成装置，每个图像形成装置各自形成多个图像图像;图案生成装置，用于通过多个各自的图像图像形成用于登记校正的图案;载体，其中 携带形成的图案，用于读取形成的图案的读取装置，使载体移动的移动装置，以及用于在由图像形成装置形成图案之间改变移动装置的移动模式的改变装置 并且当读取装置读取图案时。

公开(公告)号：US5153929A

公开(公告)日：1992-10-06

申请号：US677502

申请日：1991-03-29

申请人： Hiroshi Itagaki

发明人： Hiroshi Itagaki

IPC分类号： H04N1/407 ,  G06T1/00 ,  H04N1/401

CPC分类号： H04N5/3694 ,  H04N1/401 ,  H04N5/361 ,  H04N5/3653

摘要： Image reading apparatus outputting corrected image signals includes at least one linear sensor for reading an image of an original. The linear sensor has a plurality of photodiodes and a transfer shift register. The shift register outputs image signals from a portion thereof connected to a plurality of photodiodes and outputs a dummy signal from a portion thereof unconnected to the plurality of photodiodes. A detecting circuit detects a level of the dummy signal output from the linear sensor, and a control circuit controls a level of the image signal output from the linear sensor in accordance with the level of the dummy signal detected by the detecting circuit.

摘要翻译： 输出校正图像信号的图像读取装置包括用于读取原稿的图像的至少一个线性传感器。 线性传感器具有多个光电二极管和转移移位寄存器。 移位寄存器从连接到多个光电二极管的部分输出图像信号，并从未连接到多个光电二极管的部分输出虚拟信号。 检测电路检测从线性传感器输出的虚拟信号的电平，并且控制电路根据由检测电路检测到的虚拟信号的电平来控制从线性传感器输出的图像信号的电平。

公开(公告)号：US5121230A

公开(公告)日：1992-06-09

申请号：US144049

申请日：1988-01-14

申请人： Toshio Honma ,  Nobuo Matsuoka ,  Shizuo Hasegawa ,  Yasumichi Suzuki ,  Hiroshi Itagaki ,  Kenji Sasahara

发明人： Toshio Honma ,  Nobuo Matsuoka ,  Shizuo Hasegawa ,  Yasumichi Suzuki ,  Hiroshi Itagaki ,  Kenji Sasahara

IPC分类号： H04N1/401 ,  H04N1/407

CPC分类号： H04N1/4076 ,  H04N1/401

摘要： An image reading apparatus such as a color copying apparatus has a plurality of sensing CCD chips for converting an image of an object into an electrical signal, each sensing CCD chip having a plurality of sensing elements. The apparatus also has a circuit for converting the electrical signal into digital data. A first adjusting circuit is provided for conducting either an operation for obtaining level matching of the electrical signal converted by the sensing chips, or an operation for controlling the gain of the electrical signal converted by the sensing chips. The apparatus further has a second adjusting circuit for effecting compensation for fluctuation of characteristics of the sensing elements of the sensing chips, by making use of the digital data converted by the converting circuit, the second adjusting circuit being adapted for effecting the compensation on the basis of electrical signals which are produced as a result of conversion by the sensing chips from two objects having different levels of density from each other, such as white and black levels.