公开(公告)号：US08161225B2

公开(公告)日：2012-04-17

申请号：US10567241

申请日：2004-08-03

Applicant: Takuji Maeda ,  Shinji Inoue ,  Yoshiho Gotoh ,  Jun Ohara ,  Masahiro Nakanishi ,  Shoichi Tsujita ,  Tomoaki Izumi ,  Tetsushi Kasahara ,  Kazuaki Tamura ,  Kiminori Matsuno ,  Koichi Horiuchi ,  Manabu Inoue ,  Makoto Ochi

Inventor： Takuji Maeda ,  Shinji Inoue ,  Yoshiho Gotoh ,  Jun Ohara ,  Masahiro Nakanishi ,  Shoichi Tsujita ,  Tomoaki Izumi ,  Tetsushi Kasahara ,  Kazuaki Tamura ,  Kiminori Matsuno ,  Koichi Horiuchi ,  Manabu Inoue ,  Makoto Ochi

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

CPC classification number: G06F3/0659 ,  G06F3/061 ,  G06F3/0632 ,  G06F3/0679

Abstract: A card information-storing portion is provided in a semiconductor memory card, and information relating to access performance such as access condition and access rate is held in the storing portion. Further, an access device acquires the held information from the semiconductor memory card to make it possible that the information can be used for control of a file system. This optimizes processing of the access device and the semiconductor memory card independent of differences in characteristics of semiconductor memory cards and management methods used, realizing high-rate access from the access device to a semiconductor memory card.

Abstract translation: 在半导体存储卡中设置有卡片信息存储部分，并且存储与存取条件和访问速率有关的访问性能的信息被保存在存储部分中。 此外，访问装置从半导体存储卡获取保持的信息，使得该信息可以用于文件系统的控制。 这优化了访问设备和半导体存储卡的处理，而与半导体存储卡的特性差异以及使用的管理方法无关，实现了从访问设备到半导体存储卡的高速率访问。

公开(公告)号：US08090920B2

公开(公告)日：2012-01-03

申请号：US11571594

申请日：2005-07-05

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

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

IPC: H04L9/00 ,  G06F21/00

CPC classification number: G11B20/00869 ,  G06F21/10 ,  G11B20/00086 ,  G11B20/00181 ,  G11B20/00492 ,  G11B20/1262 ,  G11B2020/1278 ,  G11B2220/61

Abstract: A recording medium stores contents and contents keys to be used for encrypting the contents, in a plurality of storage formats. The storage formats include a storage format (a first format) for delivered contents acquired through a network, and a storage format (a second format) for local contents acquired by a method other than the delivery. The intrinsic storage formats of the contents to be stored in the recording medium are determined according to the kinds of the contents. The recording medium stores not only the contents and the contents keys but also original storage format information (an import flag) (851) which is information indicating the intrinsic storage formats of the contents. With reference to the original storage format information, a reproduction device selects a reproduction method in accordance with the intrinsic storage formats of the contents.

Abstract translation: 记录介质以多种存储格式存储要用于加密内容的内容和内容密钥。 存储格式包括用于通过网络获取的传送内容的存储格式（第一格式）和用于通过非传送方法获取的本地内容的存储格式（第二格式）。 要存储在记录介质中的内容的固有存储格式根据内容的种类来确定。 记录介质不仅存储内容和内容密钥，而且存储作为表示内容的固有存储格式的信息的原始存储格式信息（进口标志）（851）。 参考原始存储格式信息，再现设备根据内容的固有存储格式选择再现方法。

公开(公告)号：US20110302225A1

公开(公告)日：2011-12-08

申请号：US13204323

申请日：2011-08-05

Applicant: Takuji MAEDA ,  Shinji INOUE

Inventor： Takuji MAEDA ,  Shinji INOUE

IPC: G06F17/30

CPC classification number: G06F11/1435 ,  G06F11/1004 ,  G06F16/13

Abstract: 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).

公开(公告)号：US08069306B2

公开(公告)日：2011-11-29

申请号：US12942482

申请日：2010-11-09

Applicant: Takuji Maeda ,  Masato Suto ,  Hirokazu So ,  Makoto Ochi ,  Shinji Inoue

Inventor： Takuji Maeda ,  Masato Suto ,  Hirokazu So ,  Makoto Ochi ,  Shinji Inoue

IPC: G06F12/00 ,  G06F13/28 ,  G06F17/30

CPC classification number: G06F3/0643 ,  G06F3/0608 ,  G06F3/064 ,  G06F3/0676 ,  G06F3/0677 ,  G06F3/0679 ,  G06F12/0866 ,  G06F2212/466 ,  Y10S707/99956

Abstract: Area management information is cached in a cache memory by controlling the access size when an information processor accesses the area management information in an information recording medium. When the processing content of the information processor is to retrieve a free area from the area management information, a physical management block size determined from the physical characteristics of the information recording medium is used. When the processing content is to acquire a link destination from the area management information, minimum access unit of the information recording medium is used. Consequently, overhead can be lessened when the area management information is accessed.

Abstract translation: 当信息处理器访问信息记录介质中的区域管理信息时，通过控制访问大小，将区域管理信息缓存在高速缓冲存储器中。 当信息处理器的处理内容从区域管理信息中检索空闲区域时，使用从信息记录介质的物理特性确定的物理管理块大小。 当处理内容从区域管理信息获取链接目的地时，使用信息记录介质的最小访问单元。 因此，当访问区域管理信息时，可以减少开销。

公开(公告)号：US20110125928A1

公开(公告)日：2011-05-26

申请号：US13014875

申请日：2011-01-27

Applicant: Masayuki TOYAMA ,  Takuji MAEDA ,  Tomoaki IZUMI ,  Shouichi TSUJITA ,  Masahiro NAKANISHI ,  Shinji INOUE

Inventor： Masayuki TOYAMA ,  Takuji MAEDA ,  Tomoaki IZUMI ,  Shouichi TSUJITA ,  Masahiro NAKANISHI ,  Shinji INOUE

IPC: G06F3/01

CPC classification number: G06F3/0659 ,  G06F3/0619 ,  G06F3/0679

Abstract: A host device is connected to a storage device via a bus and reads and writes data in the storage device. The host device includes a command transmitter that sequentially transmits a command in a command sequence, which includes a set of commands which do not change data stored in the storage device, and a response receptor that accepts a response from the storage device for each command transmission from the command transmitter and determines whether or not an error exists. An acceptable/unacceptable access determiner provided in the host device enables access to the storage device when a normal response is identified by the response receptor and otherwise determines that access to the storage device is unacceptable. The normal response is when the responses received from the storage device for the transmissions of all commands in the command sequence do not include an error.

Abstract translation: 主机通过总线连接到存储设备，并在存储设备中读取和写入数据。 主机装置包括命令发送器，其顺序地发送命令序列中的命令，该命令序列包括不改变存储在存储装置中的数据的一组命令，以及响应接收器，用于接收来自存储装置的每个命令传输的响应 从命令发送器确定是否存在错误。 在主机设备中提供的可接受/不能接受的访问确定器使得能够在响应受体识别出正常响应时访问存储设备，并且另外确定对存储设备的访问是不可接受的。 正常响应是当从存储设备接收的用于命令序列中的所有命令的传输的响应不包括错误。

公开(公告)号：US07900007B2

公开(公告)日：2011-03-01

申请号：US11571592

申请日：2005-06-28

Applicant: Masayuki Toyama ,  Takuji Maeda ,  Tomoaki Izumi ,  Shouichi Tsujita ,  Masahiro Nakanishi ,  Shinji Inoue

Inventor： Masayuki Toyama ,  Takuji Maeda ,  Tomoaki Izumi ,  Shouichi Tsujita ,  Masahiro Nakanishi ,  Shinji Inoue

IPC: G06F13/14

CPC classification number: G06F3/0659 ,  G06F3/0619 ,  G06F3/0679

Abstract: A host device transmits a command from a command transmission unit (101a) along a predetermined command sequence. A storage device (2) receives the command in a command reception unit (202a). An access determination unit (202c) determines the sequence of the command transmitted from the host device (1) and determines that reception of the access to the host device (1) is enabled only when the sequence is identical with a predetermined sequence. Thus, with simple control, it is possible to prevent data destruction by a host device of an old version.

Abstract translation: 主机设备沿着预定的命令序列从命令发送单元（101a）发送命令。 存储装置（2）在命令接收部（202a）中接收命令。 访问确定单元（202c）确定从主机设备（1）发送的命令的顺序，并且确定只有当序列与预定序列相同时，对主机设备（1）的访问的接收才被使能。 因此，通过简单的控制，可以防止主机装置破坏老版本的数据。

公开(公告)号：US20110022645A1

公开(公告)日：2011-01-27

申请号：US12934334

申请日：2009-04-01

Applicant: Takuji Maeda ,  Shinji Inoue

Inventor： Takuji Maeda ,  Shinji Inoue

IPC: G06F17/30

CPC classification number: G06F11/1435 ,  G06F11/1004 ,  G06F17/30091

Abstract: 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).

Abstract translation: 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：US07730320B2

公开(公告)日：2010-06-01

申请号：US11223939

申请日：2005-09-13

Applicant: Tomoya Satou ,  Makoto Fujiwara ,  Kentarou Shiomi ,  Yusuke Nemoto ,  Yuishi Torisaki ,  Kazuya Shimizu ,  Shinji Inoue ,  Kazuya Fujimura ,  Makoto Ochi

Inventor： Tomoya Satou ,  Makoto Fujiwara ,  Kentarou Shiomi ,  Yusuke Nemoto ,  Yuishi Torisaki ,  Kazuya Shimizu ,  Shinji Inoue ,  Kazuya Fujimura ,  Makoto Ochi

IPC: H04L9/00

CPC classification number: G11B20/00086 ,  H04L9/0822 ,  H04L9/0833 ,  H04L9/0894 ,  H04L9/3236 ,  H04L2209/38 ,  H04L2209/60

Abstract: In a target apparatus which stores at least one piece of domain key information in a first area and a plurality of pieces of content key information each associated with any one of the domain key information in a second area, a method for generating data for detecting tampering of the content key information. The method comprises the steps of encrypting the content key information associated with one of the domain key information using a chain encryption technique, extracting data at predetermined positions in the encrypted content key information, concatenating the pieces of data extracted at the predetermined positions in the encrypted content key information to obtain concatenated data, performing a hash calculation with respect to the concatenated data to obtain a hash value, storing check values corresponding to the data at the predetermined positions in plain text, in the target apparatus, and storing the hash value in the target apparatus.

Abstract translation: 在将第一区域中存储至少一段领域密钥信息和与第二区域中的任何一个域密钥信息相关联的多条内容密钥信息的目标设备中，存储用于检测篡改的数据的方法 的内容密钥信息。 该方法包括以下步骤：使用链式加密技术加密与一个领域密钥信息相关联的内容密钥信息，在加密的内容密钥信息中的预定位置提取数据，连接在加密的内容密钥信息中的预定位置提取的数据段 内容密钥信息以获得连接的数据，对所述连接的数据执行哈希计算以获得哈希值，将与所述预定位置上的数据相对应的校验值存储在目标设备中，并将哈希值存储在 目标设备。

公开(公告)号：US07654466B2

公开(公告)日：2010-02-02

申请号：US10553725

申请日：2004-09-13

Applicant: Takuji Maeda ,  Shinji Inoue ,  Yoshiho Gotoh ,  Jun Ohara ,  Masahiro Nakanishi ,  Shoichi Tsujita ,  Tomoaki Izumi ,  Tetsushi Kasahara ,  Kazuaki Tamura ,  Kiminori Matsuno ,  Koichi Horiuchi ,  Manabu Inoue

Inventor： Takuji Maeda ,  Shinji Inoue ,  Yoshiho Gotoh ,  Jun Ohara ,  Masahiro Nakanishi ,  Shoichi Tsujita ,  Tomoaki Izumi ,  Tetsushi Kasahara ,  Kazuaki Tamura ,  Kiminori Matsuno ,  Koichi Horiuchi ,  Manabu Inoue

IPC: G06F12/00

CPC classification number: G06F12/0246 ,  G06F3/0611 ,  G06F3/0625 ,  G06F3/0658 ,  G06F3/0659 ,  G06F3/0688 ,  Y02D10/154

Abstract: A host information memory is provided in a semiconductor memory card and a data write start address and a data size supplied by an access unit are stored. A free physical area generation section determines whether or not to perform erasing of an invalid block of a nonvolatile memory when writing of data based on the data write start address and data size, and determines the number of blocks to be erased. When erasing, writing of data and erasing of invalid blocks are simultaneously performed with respect to different memory chips. Erase process of data, herewith, can be optimized and high speed access from the access unit to a semiconductor memory card can be realized.

Abstract translation: 在半导体存储卡中提供主机信息存储器，并且存储由访问单元提供的数据写入起始地址和数据大小。 空闲物理区域生成部分基于数据写入开始地址和数据大小来确定在写入数据时是否执行非易失性存储器的无效块的擦除，并且确定要擦除的块的数量。 当擦除时，相对于不同的存储器芯片同时执行数据的写入和无效块的擦除。 可以优化数据的擦除处理，并且可以实现从存取单元到半导体存储卡的高速访问。

公开(公告)号：US07653796B2

公开(公告)日：2010-01-26

申请号：US10546453

申请日：2004-02-19

Applicant: Shinji Inoue ,  Takuji Maeda

Inventor： Shinji Inoue ,  Takuji Maeda

IPC: G06F13/00

CPC classification number: G06F3/0644 ,  G06F3/0607 ,  G06F3/0643 ,  G06F3/0674 ,  G06F3/0679

Abstract: A region management method for an information recording medium capable of maintaining data interchangeability among devices and preventing malfunction when one information recording medium shared among devices different in type or number of file systems that can be interpreted by devices is provided. A recording region of the information recording medium is divided into a plurality of regions, and region information such as position and size of each region is held in the information recording medium. Different file systems are constructed in individual data recording regions. In response to a command from an information processing apparatus, accessible regions by the information processing apparatus are changed over by, for example, referring to validity flag information that indicates a presently valid region.

Abstract translation: 一种用于信息记录介质的区域管理方法，用于在设备中可以解释的文件系统的类型或数量不同的设备之间共享一个信息记录介质时，能够维护设备之间的数据可互换性并防止故障。 信息记录介质的记录区域被划分为多个区域，并且各区域的位置和大小等区域信息保存在信息记录介质中。 在各个数据记录区域中构建不同的文件系统。 响应于来自信息处理设备的命令，通过例如参考指示当前有效区域的有效性标志信息来改变信息处理设备的可访问区域。