公开(公告)号：US20060226831A1

公开(公告)日：2006-10-12

申请号：US11397223

申请日：2006-04-04

申请人： Osamu Ochiai ,  Yuji Nagai ,  Masayuki Shibata ,  Hideo Maejima

发明人： Osamu Ochiai ,  Yuji Nagai ,  Masayuki Shibata ,  Hideo Maejima

IPC分类号： G01R33/10

CPC分类号： G01D5/145 ,  Y10S33/01

摘要： A magnetic scale is disclosed wherein a magnetic member is protected with certainty to effectively enhance the durability. The magnetic scale includes a magnetic member provided between outside and inside pipe members and has magnetic graduations magnetized alternately with the N and S poles along the extending direction thereof. When the magnetic member and the inside pipe member are assembled in the outside pipe member, the inside pipe member contacts partly with an inner face of the outside pipe member and partly with a back face of the magnetic member in such a manner as to cover the overall back face. The outer face of the inside pipe member presses the back face of the magnetic member over the overall length so that the close contact face of the magnetic member is closely contacted with the inner face of the outside pipe member.

摘要翻译： 公开了一种磁性秤，其中磁性构件被确定地保护以有效地提高耐久性。 磁规包括设置在外管和内管件之间的磁性部件，并且具有与N极和S极沿其延伸方向交替磁化的磁刻度。 当磁性构件和内部管构件组装在外部管构件中时，内部管构件部分地与外部管构件的内表面接触并且部分地与磁性构件的背面接触以覆盖 整体背面。 内管构件的外表面在整个长度上挤压磁性构件的背面，使得磁性构件的紧密接触面与外管构件的内表面紧密接触。

公开(公告)号：US20060220637A1

公开(公告)日：2006-10-05

申请号：US11392525

申请日：2006-03-29

申请人： Masayuki Shibata ,  Hideo Maejima ,  Osamu Ochiai ,  Yuji Nagai

发明人： Masayuki Shibata ,  Hideo Maejima ,  Osamu Ochiai ,  Yuji Nagai

IPC分类号： G01B7/14

CPC分类号： G01D5/145

摘要： Disclosed herein is a magnetic scale including a pipe, a strip-shaped magnetic member having a one side surface in the direction across the thickness thereof as a contact surface adapted to be closely attached to the inner surface of the pipe and the other side surface opposite to the one side surface as a back surface, the magnetic member being inserted in the pipe so as to extend straight in the longitudinal direction of the pipe, the magnetic member being formed with magnetic marks provided by a plurality of N poles and S poles alternately arranged in the longitudinal direction of the magnetic member, and a retainer member inserted in the pipe to press the back surface of the magnetic member toward the contact surface of the magnetic member, thereby maintaining a closely contact condition of the contact surface to the inner surface of the pipe. Accordingly, the magnetic member can be reliably protected to thereby improve its durability.

公开(公告)号：US07091887B2

公开(公告)日：2006-08-15

申请号：US11056349

申请日：2005-02-10

申请人： Yuji Nagai ,  Yutaka Kashihara ,  Tadashi Kojima

发明人： Yuji Nagai ,  Yutaka Kashihara ,  Tadashi Kojima

IPC分类号： H03M5/00 ,  G11B7/0045

CPC分类号： G11B20/00086 ,  G11B20/0021 ,  G11B20/00362 ,  G11B20/00492 ,  G11B20/00579 ,  G11B20/00927 ,  G11B2020/1457

摘要： A modulator includes a replacement processing unit which replaces a part of main information code-converted in a main information converter with specific information code-converted in a specific information converter and a direct-current component suppress processing unit which performs direct-current component suppress processing for the main information which has undergone the replacement processing in the replacement processing unit. The direct-current component suppress processing can be performed for the main information after the replacement processing of the main information with the specific information to prevent deterioration in direct-current component suppress characteristics due to the replacement processing.

摘要翻译： 调制器包括替换处理单元，该替换处理单元将特定信息转换器中的特定信息代码转换的主信息代码转换的一部分替换为特定信息转换器中的代码转换器，以及执行直流分量抑制处理的直流分量抑制处理单元 对于在替换处理单元中进行了替换处理的主要信息。 可以对具有特定信息的主信息的替换处理之后的主信息执行直流分量抑制处理，以防止由替换处理引起的直流分量抑制特性的劣化。

公开(公告)号：US09166783B2

公开(公告)日：2015-10-20

申请号：US13820343

申请日：2011-05-30

申请人： Yuji Nagai ,  Hiroyuki Sakamoto ,  Hiroto Nakai ,  Seiji Miyata ,  Hideki Mimura

发明人： Yuji Nagai ,  Hiroyuki Sakamoto ,  Hiroto Nakai ,  Seiji Miyata ,  Hideki Mimura

IPC分类号： H04L9/08

CPC分类号： H04L9/0833 ,  H04L9/0816 ,  H04L9/0822 ,  H04L9/0894 ,  H04L2209/60

摘要： A digital content protection method includes distributing, together with an encrypted content, an encrypted protected program key, a protected content key, and a protected code including an individual instruction code, at least some elements of which are designed according to a unique operation code specification for each content player or for each content player group.

摘要翻译： 数字内容保护方法包括与加密内容一起分发加密的受保护程序密钥，受保护内容密钥和包括单独指令代码的受保护代码，其中至少一些元件根据唯一的操作代码规范设计 对于每个内容播放器或每个内容播放器组。

公开(公告)号：US08989374B2

公开(公告)日：2015-03-24

申请号：US13524497

申请日：2012-06-15

申请人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita

发明人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita

IPC分类号： H04L9/00 ,  H04L29/06 ,  H04L9/32

CPC分类号： G09C1/00 ,  H04L9/0866 ,  H04L2209/12 ,  H04N5/907

摘要： According to one embodiment, a memory being used to store a host identification key, a host constant (HC), and a first key, the first key being generated based on the host constant (HC); a first generator configured to decrypt a family key block read from an external device with the host identification key to generate a family key; a second generator configured to decrypt encrypted secret identification information read from the external device with the family key to generate a secret identification information; a third generator configured to generate a random number; a fourth generator configured to generate a session key by using the first key and the random number; a fifth generator configured to generate a first authentication information by processing the secret identification information with the session key in one-way function operation.

摘要翻译： 根据一个实施例，用于存储主机识别密钥，主机常数（HC）和第一密钥的存储器，所述第一密钥基于所述主机常数（HC）生成; 第一发生器，被配置为使用所述主机识别密钥来解密从外部设备读取的家庭密钥块，以生成家庭密钥; 第二发生器，被配置为使用所述家庭密钥解密从所述外部设备读取的加密的秘密识别信息，以生成秘密识别信息; 配置为生成随机数的第三生成器; 第四发生器，被配置为通过使用所述第一密钥和所述随机数来生成会话密钥; 第五生成器，被配置为通过在单向功能操作中用会话密钥处理秘密识别信息来生成第一认证信息。

公开(公告)号：US08949621B2

公开(公告)日：2015-02-03

申请号：US13523259

申请日：2012-06-14

申请人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita

发明人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita

IPC分类号： H04L9/32 ,  H04L9/08

CPC分类号： H04L9/0822 ,  H04L9/0866 ,  H04L9/0869 ,  H04L9/0897 ,  H04L9/3242 ,  H04L9/3271

摘要： According to one embodiment, a device includes a first data generator configured to generate a second key (HKey) by encrypting a host constant (HC) with the first key (NKey); a second data generator configured to generate a session key (SKey) by encrypting a random number (RN) with the second key (HKey); a one-way function processor configured to generate an authentication information (Oneway-ID) by processing the secret identification information (SecretID) with the session key (SKey) in one-way function operation; and a data output interface configured to output the encrypted secret identification information (E-SecretID) and the authentication information (Oneway-ID) to outside of the device.

摘要翻译： 根据一个实施例，一种设备包括：第一数据生成器，被配置为通过用第一密钥（NKey）加密主机常数（HC）来生成第二密钥（HKey）; 第二数据生成器，被配置为通过用第二密钥（HKey）加密随机数（RN）来生成会话密钥（SKey）; 单向功能处理器，被配置为通过在单向功能操作中通过会话密钥（SKey）处理秘密识别信息（SecretID）来生成认证信息（Oneway-ID）; 以及数据输出接口，被配置为将加密的秘密识别信息（E-SecretID）和认证信息（Oneway-ID）输出到设备外部。

公开(公告)号：US08898463B2

公开(公告)日：2014-11-25

申请号：US13524826

申请日：2012-06-15

申请人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita

发明人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita

IPC分类号： H04L29/06 ,  H04L9/32 ,  H04L9/00

CPC分类号： G06F21/44 ,  G06F21/79 ,  G06F2221/2129 ,  H04L9/3234

摘要： According to one embodiment, a device includes a cell array including an ordinary area, a hidden area, and an identification information record area in which identification information which defines a condition for accessing the hidden area is recorded. An authentication circuit performs authentication. A sensing circuit recognizes information recorded in the identification information storage area, determines the information recorded in the identification information record area when an access request selects the hidden area, validates an access to the hidden area when determined that the identification information is recorded, and invalidates an access to the hidden area when determined that the identification information is not recorded.

摘要翻译： 根据一个实施例，一种装置包括一个单元阵列，包括普通区域，隐藏区域和识别信息记录区域，其中记录了定义用于访问隐藏区域的条件的识别信息。 认证电路执行认证。 感测电路识别记录在识别信息存储区域中的信息，当访问请求选择隐藏区域时，确定记录在识别信息记录区域中的信息，当确定识别信息被记录时验证对隐藏区域的访问，并且无效 当确定没有记录识别信息时对隐藏区域的访问。

公开(公告)号：US08855297B2

公开(公告)日：2014-10-07

申请号：US13524475

申请日：2012-06-15

申请人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita ,  Toshihiro Suzuki ,  Noboru Shibata

发明人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita ,  Toshihiro Suzuki ,  Noboru Shibata

IPC分类号： G06F21/24

CPC分类号： H04L9/0816 ,  G11B20/00362 ,  G11B20/00427 ,  H04L9/0822 ,  H04L9/0833 ,  H04L9/0897 ,  H04L9/32 ,  H04L2209/601

摘要： According to one embodiment, an authentication method includes generating, by the memory, first authentication information by calculating secret identification information with a memory session key in one-way function operation, transmitting encrypted secret identification information, a family key block, and the first authentication information to a host, and generating, by the host, second authentication information by calculating the secret identification information generated by decrypting the encrypted secret identification information with the host session key in one-way function operation. The method further includes comparing, by the host, the first authentication information with the second authentication information.

摘要翻译： 根据一个实施例，一种认证方法包括：通过在单向功能操作中用存储器会话密钥计算秘密识别信息，通过存储器生成第一认证信息，发送加密的秘密识别信息，家庭密钥块和第一认证 信息发送到主机，并且由主机通过计算通过用单向功能操作中的主机会话密钥对加密的秘密识别信息进行解密而生成的秘密识别信息来生成第二认证信息。 该方法还包括由主机将第一认证信息与第二认证信息进行比较。

公开(公告)号：US08812843B2

公开(公告)日：2014-08-19

申请号：US13524843

申请日：2012-06-15

申请人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita ,  Toshihiro Suzuki ,  Noboru Shibata

发明人： Yuji Nagai ,  Taku Kato ,  Tatsuyuki Matsushita ,  Toshihiro Suzuki ,  Noboru Shibata

IPC分类号： H04L9/32

CPC分类号： H04L9/0816 ,  G11B20/00362 ,  G11B20/00427 ,  H04L9/0822 ,  H04L9/0833 ,  H04L9/0897 ,  H04L9/32 ,  H04L2209/601

摘要： According to one embodiment, a device includes first and second data generator, a one-way function processor, and a data output interface. The first data generator generates a second key by encrypting a host constant with a first key in AES operation. The second data generator generates a session key by encrypting a random number with a second key in AES operation. The one-way function processor generates authentication information by processing secret identification information with the session key in one-way function operation. The data output interface outputs the encrypted secret identification information, a family key block, and the authentication information to outside of the device.

摘要翻译： 根据一个实施例，设备包括第一和第二数据生成器，单向功能处理器和数据输出接口。 第一个数据生成器通过AES操作中的第一个密钥加密主机常数来生成第二个密钥。 第二数据生成器通过在AES操作中用第二密钥加密随机数生成会话密钥。 单向功能处理器通过在单向功能操作中通过会话密钥处理秘密识别信息来生成认证信息。 数据输出接口将加密的秘密识别信息，家庭密钥块和认证信息输出到设备外部。

公开(公告)号：US20140146607A1

公开(公告)日：2014-05-29

申请号：US13985436

申请日：2012-02-17

申请人： Yuji Nagai ,  Atsushi Inoue ,  Yoshikazu Takeyama

发明人： Yuji Nagai ,  Atsushi Inoue ,  Yoshikazu Takeyama

IPC分类号： G11C16/22

CPC分类号： G11C16/22 ,  G06F7/58 ,  G06F7/584

摘要： According to one embodiment, a semiconductor memory device includes a memory cell array including a plurality of memory cells, a random number generation circuit configured to generate a random number, and a controller configured to control the memory cell array and the random number generation circuit. The random number generation circuit includes a random number control circuit configured to generate a random number parameter based on data which is read out from the memory cell by a generated control parameter, and a pseudo-random number generation circuit configured to generate the random number by using the random number parameter as a seed value.

摘要翻译： 根据一个实施例，半导体存储器件包括包括多个存储器单元的存储单元阵列，被配置为产生随机数的随机数生成电路以及配置为控制存储单元阵列和随机数产生电路的控制器。 随机数生成电路包括：随机数控制电路，被配置为基于通过生成的控制参数从存储器单元读出的数据生成随机数参数;以及伪随机数生成电路，被配置为通过 使用随机数参数作为种子值。