公开(公告)号：US06741811B2

公开(公告)日：2004-05-25

申请号：US09813951

申请日：2001-03-22

申请人： Tetsuya Nishi ,  Satoshi Kuroyanagi ,  Ichiro Nakajima ,  Takuji Maeda ,  Toru Katagiri

发明人： Tetsuya Nishi ,  Satoshi Kuroyanagi ,  Ichiro Nakajima ,  Takuji Maeda ,  Toru Katagiri

IPC分类号： H04J1400

CPC分类号： H04J14/0213 ,  H04J14/0212 ,  H04Q11/0005 ,  H04Q2011/0011 ,  H04Q2011/0016 ,  H04Q2011/0033 ,  H04Q2011/0075

摘要： Disclosed herein is an optical cross-connect device including first wavelength demultiplexing sections each for demultiplexing WDM (wavelength division multiplexed) signal light into a plurality of optical signals, wavelength group generating sections each for receiving the optical signals from each first wavelength demultiplexing section to generate wavelength groups, first wavelength multiplexing sections each for receiving each wavelength group from each wavelength group generating section to output a WDM wavelength group, a routing section for routing the input WDM wavelength groups, second wavelength demultiplexing sections each for receiving each WDM wavelength group from the routing section to output a wavelength group having a plurality of wavelengths, wavelength converting sections each for performing wavelength conversion of each optical signal of the wavelength group output from each second wavelength demultiplexing section, and second wavelength multiplexing sections each for wavelength division multiplexing optical signals output from the wavelength converting sections. This device is suitable for construction of a large-scale optical network supporting an increase in number of wavelengths.

摘要翻译： 本发明公开了一种光交叉连接装置，包括：第一波长解复用部分，用于将WDM（波分复用）​​信号光分解为多个光信号;波长组生成部分，用于接收来自每个第一波长解复用部分的光信号， 波长组，每个用于从每个波长组生成部分接收每个波长组以输出WDM波长组的第一波长多路复用部分，用于路由输入的WDM波长组的路由部分，用于从WDM波长组接收每个WDM波长组的第二波长解复用部分 输出具有多个波长的波长组的波长转换部分，每个用于对从每个第二波长解复用部分输出的波长组的每个光信号进行波长转换的波长转换部分，以及第二波长多路复用部分，每个f 或从波长转换部分输出的波分复用光信号。 该器件适用于支持波长增加的大型光网络的构建。

公开(公告)号：US06154583A

公开(公告)日：2000-11-28

申请号：US114937

申请日：1998-07-14

申请人： Satoshi Kuroyanagi ,  Tetsuya Nishi ,  Takuji Maeda ,  Isao Tsuyama ,  Ichiro Nakajima

发明人： Satoshi Kuroyanagi ,  Tetsuya Nishi ,  Takuji Maeda ,  Isao Tsuyama ,  Ichiro Nakajima

IPC分类号： G02F1/31 ,  H04B10/27 ,  H04B10/29 ,  H04B10/291 ,  H04Q3/52 ,  H04Q11/00 ,  G02B6/26 ,  H04J14/00

CPC分类号： H04Q11/0005 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0217 ,  H04J14/0219 ,  H04Q11/0003 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0024 ,  H04Q2011/0056

摘要： If an optical switch unit configuring an optical switch is implemented by a three-stage circuit, optical amplifiers are arranged on the input and output sides of an optical space switch in a first stage, and the optical space switch and the optical amplifiers on both of the input and output sides are used as an expansion unit for expanding a switching capacity. Similarly, optical amplifiers are arranged on input and output sides of an optical space switch in a third stage, and the optical space switch and the optical amplifiers on both of the input and output sides are used as an expansion unit for expanding a switching capacity. Accordingly, there is no need to arrange extra optical amplifiers even at an initial setting when only part of a maximum switching capacity is used, thereby reducing an initial investment.

摘要翻译： 如果构成光开关的光开关单元由三级电路实现，则在第一级的光空间开关的输入和输出侧布置光放大器，并且光空间开关和光放大器 输入和输出侧用作扩展开关容量的扩展单元。 类似地，光放大器被布置在第三级的光学空间开关的输入和输出侧，并且光学空间开关和两个输入和输出侧的光放大器都用作扩展开关容量的扩展单元。 因此，即使在仅使用最大开关容量的一部分的情况下，即使在初始设定时也不需要布置额外的光放大器，从而减少初始投资。

公开(公告)号：US08958706B2

公开(公告)日：2015-02-17

申请号：US13012870

申请日：2011-01-25

申请人： Takuji Maeda

发明人： Takuji Maeda

IPC分类号： H04B10/06 ,  H04B10/02

摘要： A coherent optical communication device includes a demodulator configured to demodulate a reception signal; a local oscillator light optical source configured to generate local oscillator light used for demodulating the reception signal; a memory configured to store wavelength information; and a controller configured to control the local oscillator light optical source when the demodulator cannot receive the reception signal, so that a wavelength of the local oscillator light generated in the local oscillator light optical source is changed to a wavelength specified by the wavelength information stored in the memory.

摘要翻译： 相干光通信设备包括：解调器，被配置为解调接收信号; 本地振荡器光源，被配置为产生用于解调接收信号的本地振荡器光; 存储器，被配置为存储波长信息; 以及控制器，其被配置为当解调器不能接收接收信号时控制本地振荡器光源，使得在本地振荡器光源中产生的本地振荡器光的波长被改变为由存储在 记忆。

公开(公告)号：US08407488B2

公开(公告)日：2013-03-26

申请号：US13091882

申请日：2011-04-21

申请人： Makoto Fujiwara ,  Yusuke Nemoto ,  Junichi Yasui ,  Takuji Maeda ,  Takayuki Ito ,  Yasushi Yamada ,  Shinji Inoue

发明人： Makoto Fujiwara ,  Yusuke Nemoto ,  Junichi Yasui ,  Takuji Maeda ,  Takayuki Ito ,  Yasushi Yamada ,  Shinji Inoue

IPC分类号： G06F12/14 ,  H04L9/00

CPC分类号： G06F21/72 ,  G06F9/4401 ,  G06F21/123 ,  G06F21/85 ,  G06F2221/2105

摘要： A secure LSI device 1 includes an encryption section 2 for encrypting a program, and an external I/F 50 for inputting/outputting a program or data from/to an external memory 100. In the encryption section 2, the operation of a private key arithmetic processing section 20 is prohibited with respect to a sequence whose execution is determined by a key-generation/update sequencer 30 to be impermissible. In the external I/F 50, a program processing section 51 and a data processing section 55 are structured independently from each other.

公开(公告)号：US20100332717A1

公开(公告)日：2010-12-30

申请号：US12867543

申请日：2009-02-27

申请人： Takuji Maeda ,  Shigekazu Kogita ,  Shinji Inoue ,  Hiroki Etoh ,  Makoto Ochi ,  Masahiro Nakamura

发明人： Takuji Maeda ,  Shigekazu Kogita ,  Shinji Inoue ,  Hiroki Etoh ,  Makoto Ochi ,  Masahiro Nakamura

IPC分类号： G06F12/08 ,  G06F12/00

CPC分类号： G06F12/0246 ,  G06F12/0866 ,  G06F12/0888 ,  G06F2212/1036 ,  G06F2212/7203

摘要： Provided is a method that, in the case of managing areas of a non-volatile memory of an information recording module by a file system, increases the speed of processing for writing file data and file system management information, and furthermore prevents a decrease in the rewriting lifetime of the non-volatile memory. The information recording module (2) is provided with a page cache control unit (217) that stores page cache information (224) in the non-volatile memory (22) of the information recording module (2) and performs control such that a specific physical block is used as a cache when writing small-sized data. Also, an access module (1) is provided with a page cache information setting unit (104) that sets information necessary for page cache control in the information recording module (2). The combination of the access module (1) and the information recording module (2) prevents the execution of needless saving process with use of page caching when writing small-sized data, thereby increasing the speed of writing processing.

摘要翻译： 提供了一种在通过文件系统管理信息记录模块的非易失性存储器的区域的情况下增加用于写入文件数据和文件系统管理信息的处理速度的方法，并且进一步防止 重写非易失性存储器的使用寿命。 信息记录模块（2）设置有页面缓存控制单元（217），其将页面缓存信息（224）存储在信息记录模块（2）的非易失性存储器（22）中，并执行控制，使得特定 当写入小尺寸数据时，物理块用作缓存。 此外，访问模块（1）具有在信息记录模块（2）中设置页面缓存控制所需的信息的页面缓存信息设置单元（104）。 访问模块（1）和信息记录模块（2）的组合在写小尺寸数据时防止使用页面缓存来执行不必要的保存处理，从而提高写入处理的速度。

公开(公告)号：US07840729B2

公开(公告)日：2010-11-23

申请号：US10579803

申请日：2004-11-18

申请人： Shinji Inoue ,  Kazuya Fujimura ,  Yukiko Inoue ,  Takuji Maeda ,  Makoto Ochi ,  Masato Suto ,  Hirokazu So

发明人： Shinji Inoue ,  Kazuya Fujimura ,  Yukiko Inoue ,  Takuji Maeda ,  Makoto Ochi ,  Masato Suto ,  Hirokazu So

IPC分类号： G06F13/12

CPC分类号： G06F3/08 ,  G06F3/0607 ,  G06F3/0643 ,  G06F3/0644 ,  G06F3/0679

摘要： A semiconductor memory card (101) has a plurality of areas (105, 106) based on different file systems. An adapter (102) includes: an area switching part (110) which a user can operates, a determination part (109) for determining the operation; and a card controller (108) for issuing a switching command for switching the area to be used for the semiconductor memory card (101) in accordance with the judgment result. When the switching command is issued in response to input from the area switching part (110), the command is interpreted by an area selector (107) of the semiconductor memory card (101) so as to select an area.

摘要翻译： 半导体存储卡（101）具有基于不同文件系统的多个区域（105,106）。 适配器（102）包括：用户可以操作的区域切换部分（110），用于确定操作的确定部分（109） 以及卡控制器（108），用于根据判断结果发出用于切换要用于半导体存储卡（101）的区域的切换命令。 当响应于来自区域切换部分（110）的输入而发出切换命令时，命令由半导体存储卡（101）的区域选择器（107）解释，以便选择一个区域。

公开(公告)号：US07831841B2

公开(公告)日：2010-11-09

申请号：US12010132

申请日：2008-01-22

申请人： Makoto Fujiwara ,  Yusuke Nemoto ,  Junichi Yasui ,  Takuji Maeda ,  Takayuki Ito ,  Yasushi Yamada ,  Shinji Inoue

发明人： Makoto Fujiwara ,  Yusuke Nemoto ,  Junichi Yasui ,  Takuji Maeda ,  Takayuki Ito ,  Yasushi Yamada ,  Shinji Inoue

IPC分类号： G06F12/14

CPC分类号： G06F21/72 ,  G06F9/4401 ,  G06F21/123 ,  G06F21/85 ,  G06F2221/2105

摘要： A secure LSI device 1 includes an encryption section 2 for encrypting a program, and an external I/F 50 for inputting/outputting a program or data from/to an external memory 100. In the encryption section 2, the operation of a private key arithmetic processing section 20 is prohibited with respect to a sequence whose execution is determined by a key-generation/update sequencer 30 to be impermissible. In the external I/F 50, a program processing section 51 and a data processing section 55 are structured independently from each other.

摘要翻译： 安全LSI装置1包括用于加密程序的加密部分2和用于从外部存储器100输入/输出程序或数据的外部I / F50。在加密部分2中，私钥的操作 关于执行由密钥生成/更新排序器30确定的序列是不允许的，算术处理部分20被禁止。 在外部I / F50中，程序处理部51和数据处理部55彼此独立地构成。

公开(公告)号：US07823209B2

公开(公告)日：2010-10-26

申请号：US10578372

申请日：2004-11-05

申请人： Takuji Maeda ,  Shinji Inoue

发明人： Takuji Maeda ,  Shinji Inoue

IPC分类号： G06F7/04 ,  G06F17/30 ,  H04N7/16

CPC分类号： G06F3/08 ,  G06F3/0607 ,  G06F3/0643 ,  G06F3/0644 ,  G06F3/0679

摘要： An information recording medium contains a semiconductor memory as a storage device for storing data and having plural areas to be managed by mutually independent file systems, an area information storage for storing information about size and position of each area of the semiconductor memory, a host interface for receiving a command for setting each area size of the semiconductor memory from an accessing device, and an area size setter for setting the size and position of each area of the semiconductor memory. The area size setter sets the area size of each area in the semiconductor memory based on the specified setting condition according to the command received from the accessing device.

摘要翻译： 信息记录媒体包含作为存储数据的存储装置的半导体存储器，具有由相互独立的文件系统管理的多个区域，存储关于半导体存储器的每个区域的大小和位置的信息的区域信息存储器，主机接口 用于从访问装置接收用于设置半导体存储器的每个区域尺寸的命令，以及用于设置半导体存储器的每个区域的大小和位置的区域尺寸设置器。 区域尺寸设定器根据从接入装置接收到的命令，根据指定的设定条件来设定半导体存储器中各区域的面积大小。

公开(公告)号：US07657562B2

公开(公告)日：2010-02-02

申请号：US10596780

申请日：2004-12-22

申请人： Shinji Inoue ,  Makoto Ochi ,  Hirokazu So ,  Takuji Maeda

发明人： Shinji Inoue ,  Makoto Ochi ,  Hirokazu So ,  Takuji Maeda

IPC分类号： G06F17/00

CPC分类号： G11B27/329 ,  G11B20/00086 ,  G11B20/00181 ,  G11B20/0021 ,  G11B20/00231 ,  G11B20/10 ,  G11B2020/1277

摘要： A data processing apparatus is capable of playing back contents stored in a specified area in a recording medium. The recording medium stores content data and management information for managing the content data. When playing back a content which is managed by the management information on the recording medium but of which entity data is not present in the specified area of the recording medium, the data processing apparatus, searches, for the content, the other area of the recording medium with a search section. When the corresponding content is found, the link information selling section sets the link information (symbolic link, shortcut, etc.) on the recording medium so that the content can be accessed with the management information.

摘要翻译： 数据处理装置能够播放存储在记录介质中的指定区域中的内容。 记录介质存储用于管理内容数据的内容数据和管理信息。 在由记录介质上的管理信息管理的内容回放记录介质的指定区域中不存在实体数据的情况下，数据处理装置对记录的其他区域进行搜索 媒体与搜索部分。 当找到对应的内容时，链接信息销售部分将记录介质上的链接信息（符号链接，快捷方式等）设置为可以利用管理信息访问内容。

公开(公告)号：US07394951B2

公开(公告)日：2008-07-01

申请号：US10436076

申请日：2003-05-13

申请人： Takuji Maeda ,  Hiroaki Tomofuji ,  Yuji Shimada

发明人： Takuji Maeda ,  Hiroaki Tomofuji ,  Yuji Shimada

IPC分类号： G02B6/12

CPC分类号： H04B10/2931 ,  H04J14/0201 ,  H04J14/0212 ,  H04J14/0221

摘要： In an optical signal level control apparatus used in a WDM system, the amount of circuitry per wavelength is reduced. Optical power level is detected on the output side of a variable optical attenuator, and the amount of attenuation in the variable optical attenuator is adjusted so that the output level becomes equal to a constant value L1. At this time, if the detected level is lower than a threshold value Th0 or Th-d, it is determined that a signal off condition has occurred, and the amount of attenuation is set to a constant value A1. The amount of attenuation, A1, is chosen to be sufficiently larger than the amount of attenuation used in the output level constant control but small enough to be able to detect the restoration of the signal. When the amount of attenuation is being held at the constant value A1, if the output level is restored to a level higher than the threshold value Th0 or Th1 (Th1

摘要翻译： 在WDM系统中使用的光信号电平控制装置中，每波长的电路量减少。 在可变光衰减器的输出侧检测到光功率电平，并且调节可变光衰减器中的衰减量，使得输出电平变为等于常数值L1。 此时，如果检测到的电平低于阈值Th0或Th-d，则确定已经发生信号关闭状态，并将衰减量设定为常数值A1。 衰减量A1被选择为足够大于在输出电平常数控制中使用的衰减量，但足够小以能够检测信号的恢复。 当衰减量保持在恒定值A1时，如果输出电平恢复到高于阈值Th0或Th1（Th1