公开(公告)号：US08019800B2

公开(公告)日：2011-09-13

申请号：US12934334

申请日：2009-04-01

申请人： Takuji Maeda ,  Shinji Inoue

发明人： Takuji Maeda ,  Shinji Inoue

IPC分类号： G06F12/00 ,  G06F17/30

CPC分类号： G06F11/1435 ,  G06F11/1004 ,  G06F17/30091

摘要： An information recording device, which includes a nonvolatile memory whose areas are managed using an FAT file system and enhances the reliability of directory entries using a cyclic shift checksum, recalculates the cyclic shift checksum efficiently and performs seeking at a higher speed. A nonvolatile memory (25) of an information recording device 2 is managed using an FAT file system. In the memory, a plurality of directory entries are allocated to a single file. The device enhances the reliability of the directory entries using a cyclic shift checksum, and manages information indicating the position and the size of a storage area of file data using an extent information entry (203). The device further uses an update information entry (204) and a dummy entry (205).

摘要翻译： 包括使用FAT文件系统管理区域的非易失性存储器并且使用循环移位校验和提高目录条目的可靠性的信息记录装置重新计算循环移位校验和并以更高的速度执行寻找。 使用FAT文件系统来管理信息记录装置2的非易失性存储器（25）。 在存储器中，将多个目录条目分配给单个文件。 该装置使用循环移位校验和增强目录条目的可靠性，并且使用扩展信息条目来管理指示文件数据的存储区域的位置和大小的信息（203）。 设备还使用更新信息条目（204）和虚拟条目（205）。

公开(公告)号：US20110202752A1

公开(公告)日：2011-08-18

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： G06F9/00 ,  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：US07984231B2

公开(公告)日：2011-07-19

申请号：US12067671

申请日：2006-09-12

申请人： Takuji Maeda ,  Shinji Inoue

发明人： Takuji Maeda ,  Shinji Inoue

IPC分类号： G06F12/00

CPC分类号： G11B27/329 ,  G06F3/0613 ,  G06F3/0643 ,  G06F3/0679 ,  G06F12/0246 ,  G06F2212/7203 ,  G11B20/1217 ,  G11B2020/10944 ,  G11B2020/1265 ,  G11B2020/1292 ,  G11B2220/60 ,  H04N5/907

摘要： When moving image data or the like is recorded into an information recording medium, such as a flash memory, in real time, an influence of locations of free recording areas upon the recording speed is suppressed to ensure the real time performance of the data recording. In an access apparatus, there is provided an area management block control part that manages FAT1 and FAT2, which are area management information of a nonvolatile memory, on a FAT block-by-FAT block basis, and the length of the free recording area in each FAT block is calculated. Then, area management block information, in which the free recording area length in each FAT block is recorded, is generated on a RAM. A FAT block in which the free recording area length exceeds a threshold value is assigned to the data recording, thereby suppressing the number of updates of the area management information regardless of the location of the free areas. In this way, the buffer overflow can be prevented from occurring due to a high frequency of the updating of the area management information, thereby ensuring the real time performance during the data recording.

摘要翻译： 当运动图像数据等被实时地记录到诸如闪存的信息记录介质中时，可以抑制空闲记录区域的位置对记录速度的影响，以确保数据记录的实时性能。 在访问装置中，提供了一个区域管理块控制部分，其以基于FAT块的FAT块为基础来管理作为非易失性存储器的区域管理信息的FAT1和FAT2，以及自由记录区域的长度 计算每个FAT块。 然后，在RAM上生成记录了各FAT块的空闲记录区域长度的区域管理块信息。 将空闲记录区域长度超过阈值的FAT块分配给数据记录，从而抑制区域管理信息的更新次数，而与自由区域的位置无关。 以这种方式，可以防止由于区域管理信息的更新的高频率而发生缓冲器溢出，从而确保数据记录期间的实时性能。

公开(公告)号：US07849331B2

公开(公告)日：2010-12-07

申请号：US12081889

申请日：2008-04-23

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： G06F21/00

CPC分类号： G06F21/123 ,  G06F21/572 ,  G06F21/72

摘要： A system including a secure LSI 1 establishes a communication path to/from a server 3 (UD1), and receives a common key-encrypted program generated by encryption with a common key and transmitted from the server 3 (UD6 and UD7). The received common key-encrypted program is decrypted to generate a raw program, and the raw program is re-encrypted with an inherent key to newly generate an inherent key-encrypted program, which is stored in an external memory.

摘要翻译： 包括安全LSI1的系统建立到服务器3（UD1）的通信路径，并且从服务器3（UD6和UD7）接收通过公共密钥通过加密生成的公共密钥加密程序。 对所接收的公用密钥加密程序进行解密以生成原始程序，并且用固有密钥重新加密原始程序，以新生成存储在外部存储器中的固有密钥加密程序。

公开(公告)号：US07685435B2

公开(公告)日：2010-03-23

申请号：US10624481

申请日：2003-07-23

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： G06F11/30

CPC分类号： G06F21/72 ,  G06F8/60 ,  G06F21/575 ,  G06F2221/2105

摘要： An development environment of a high security level is provided for a key-installed system. Development of a program for a system having an LSI device which includes a secure memory is performed by providing another LSI device having the same structure and setting the provided LSI device to a development mode which is different from a product operation mode. Alternatively, the provided LSI device is set to an administrator mode to perform development and encryption of a key-generation program. The LSI device is set to a key-generation mode to execute the encrypted key-generation program, thereby generating various keys.

摘要翻译： 为安装密钥的系统提供了高安全级别的开发环境。 通过提供具有相同结构的另一LSI器件和将所提供的LSI器件设置为与产品操作模式不同的开发模式来执行具有包括安全存储器的LSI器件的系统的程序的开发。 或者，将所提供的LSI设备设置为管理员模式，以执行密钥生成程序的开发和加密。 LSI设备被设置为执行加密密钥生成程序的密钥生成模式，从而生成各种密钥。

公开(公告)号：US07401174B2

公开(公告)日：2008-07-15

申请号：US11011160

申请日：2004-12-15

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

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

IPC分类号： G06F13/00 ,  G06F15/00 ,  G06F12/00

CPC分类号： G06F17/30315 ,  G06F3/0613 ,  G06F3/0643 ,  G06F3/0679

摘要： An apparatus and method which can achieve high-speed data processing and long memory life and is effective to elimination of defragmentation of data, for example, is provided. A recording medium includes a logical-physical conversion table for storing correspondence of a logical address to a physical address of a block in a recording region. The recording medium has a function of replacing correspondence of a logical address to a physical address in the logical-physical conversion table, for a set of logical addresses. A data processing apparatus issues a replace command to the recording medium so that data can be rearranged on a consecutive region in the logical address space, thereby eliminating defragmentaion on the logical address space.

摘要翻译： 提供了一种可以实现高速数据处理和长存储器寿命并且有效地消除数据的碎片整理的装置和方法。 记录介质包括用于存储逻辑地址与记录区域中的块的物理地址的对应关系的逻辑 - 物理转换表。 记录介质具有将逻辑地址的对应关系替换为逻辑地址集合的逻辑 - 物理转换表中的物理地址的功能。 数据处理装置向记录介质发出替换命令，从而可以在逻辑地址空间中的连续区域重新排列数据，从而消除对逻辑地址空间的碎片整理。

公开(公告)号：US20070033364A1

公开(公告)日：2007-02-08

申请号：US10577418

申请日：2004-10-28

申请人： Takuji Maeda ,  Masahiro Nakanishi ,  Shinji Inoue ,  Hirokazu Sou

发明人： Takuji Maeda ,  Masahiro Nakanishi ,  Shinji Inoue ,  Hirokazu Sou

IPC分类号： G06F12/00

CPC分类号： G06F3/0643 ,  G06F3/0613 ,  G06F3/0679

摘要： An information recording medium such as a semiconductor memory card includes a first semiconductor memory having a first recording area accessed by a relatively small access unit and storing file system management information, a second semiconductor memory having a second recording area accessed by a relatively large access unit and storing file data (file entity data), and a controller for controlling the first and second semiconductor memories. The information recording medium selects either one of recording areas of the first and second semiconductor memories depending on the data type, and writes data into the selected recording area.

摘要翻译： 诸如半导体存储卡的信息记录介质包括具有由相对较小的存取单元访问的第一记录区和存储文件系统管理信息的第一半导体存储器，具有由相对大的访问单元访问的第二记录区的第二半导体存储器 并存储文件数据（文件实体数据）以及用于控制第一和第二半导体存储器的控制器。 信息记录介质根据数据类型选择第一和第二半导体存储器的记录区域中的一个，并将数据写入所选择的记录区域。

公开(公告)号：US20060007738A1

公开(公告)日：2006-01-12

申请号：US11175399

申请日：2005-07-07

申请人： Shinji Inoue ,  Takuji Maeda ,  Masayuki Toyama ,  Tomoaki Izumi ,  Masahiro Nakanishi ,  Shoichi Tsujita

发明人： Shinji Inoue ,  Takuji Maeda ,  Masayuki Toyama ,  Tomoaki Izumi ,  Masahiro Nakanishi ,  Shoichi Tsujita

IPC分类号： G11C11/34

CPC分类号： G06F11/201

摘要： In a storage medium which has a number of areas, access to any area is controlled in accordance with whether or not access to another area is possible, and thereby, destruction of data due to malfunctioning or a wrong operation is prevented. A link control part which controls access to the second area based on the information on access to the first area is provided, and access to the second area is controlled on the basis of whether or not access to the first area is possible. Control becomes possible, such that access to the second area becomes impossible in the state where access to the first area is impossible, while access to the second area becomes possible in the case where access to the first area is possible.

摘要翻译： 在具有多个区域的存储介质中，根据是否可以访问其他区域来控制对任何区域的访问，从而防止由于故障或错误操作而导致的数据破坏。 提供了基于关于对第一区域的访问的信息来控制对第二区域的访问的链接控制部分，并且基于是否可以访问第一区域来控制对第二区域的访问。 控制成为可能，使得在不可能访问第一区域的状态下不可能访问第二区域，而在可能访问第一区域的情况下可以访问第二区域。

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：US08185705B2

公开(公告)日：2012-05-22

申请号：US10577418

申请日：2004-10-28

申请人： Takuji Maeda ,  Masahiro Nakanishi ,  Shinji Inoue ,  Hirokazu Sou

发明人： Takuji Maeda ,  Masahiro Nakanishi ,  Shinji Inoue ,  Hirokazu Sou

IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28

CPC分类号： G06F3/0643 ,  G06F3/0613 ,  G06F3/0679

摘要： An information recording medium such as a semiconductor memory card includes a first semiconductor memory having a first recording area accessed by a relatively small access unit and storing file system management information, a second semiconductor memory having a second recording area accessed by a relatively large access unit and storing file data (file entity data), and a controller for controlling the first and second semiconductor memories. The information recording medium selects either one of recording areas of the first and second semiconductor memories depending on the data type, and writes data into the selected recording area.

摘要翻译： 诸如半导体存储卡的信息记录介质包括具有由相对较小的存取单元访问的第一记录区和存储文件系统管理信息的第一半导体存储器，具有由相对大的访问单元访问的第二记录区的第二半导体存储器 并存储文件数据（文件实体数据）以及用于控制第一和第二半导体存储器的控制器。 信息记录介质根据数据类型选择第一和第二半导体存储器的记录区域中的一个，并将数据写入所选择的记录区域。