公开(公告)号：US07529938B2

公开(公告)日：2009-05-05

申请号：US09936157

申请日：2001-01-12

申请人： Osamu Shibata ,  Taihei Yugawa ,  Tsutomu Sekibe ,  Teruto Hirota ,  Yoshiyuki Saito ,  Toshihiko Otake

发明人： Osamu Shibata ,  Taihei Yugawa ,  Tsutomu Sekibe ,  Teruto Hirota ,  Yoshiyuki Saito ,  Toshihiko Otake

IPC分类号： H04L9/00 ,  G06F12/14 ,  G06F17/30 ,  H04N7/167 ,  H04K1/00

CPC分类号： G06F21/445 ,  G06F2221/2129 ,  Y10S707/99939

摘要： An authentication communication system includes an storage medium having an area for storing digital information and an access device for reading/writing digital information from/into the area. The access device authenticates whether the storage medium is authorized according to a challenge-response authentication protocol in which scrambled access information generated by scrambling the access information which shows the area is used. The storage medium authenticates whether the access device is authorized. When the access device and the storage medium have authenticated each other as authorized devices, the access device reads/writes digital information from/into the area in the storage medium according to the access information separated from the scrambled access information by the access device.

摘要翻译： 认证通信系统包括具有用于存储数字信息的区域的存储介质和用于从该区域读入/写入数字信息的访问设备。 访问设备根据询问 - 响应认证协议来认证存储介质是否被授权，其中使用通过对显示该区域的访问信息进行加扰而生成的加扰访问信息。 存储介质验证访问设备是否被授权。 当接入设备和存储介质彼此认证为授权设备时，接入设备根据由接入设备与加扰接入信息分离的接入信息，将/从数据信息读入/写入存储介质中的区域。

公开(公告)号：US20080285750A1

公开(公告)日：2008-11-20

申请号：US11838792

申请日：2007-08-14

申请人： Osamu Shibata ,  Taihei Yugawa ,  Tsutomu Sekibe ,  Yoshiyuki Saito ,  Toshihiko Otake

发明人： Osamu Shibata ,  Taihei Yugawa ,  Tsutomu Sekibe ,  Yoshiyuki Saito ,  Toshihiko Otake

IPC分类号： H04N7/167

CPC分类号： H04L9/0894 ,  H04L2209/60

摘要： A decryption device includes: an internal-key storage section for storing an internal-key; a content-key storage section for storing a content-key; a determination section for determining whether or not a value of the content-key storage section in its initial state and a current value of the content-key storage section are different; and an operation section, the operation section including a first decrypting section which, when an encrypted content-key is input to the operation section, decrypts the encrypted content-key using the internal-key so as to obtain a content-key and stores the content-key in the content-key storage section, and a second decrypting section which, when an encrypted content is input to the operation section and the determination section determines that the value of the content-key storage section in its initial state and the current value of the content-key storage section are different, decrypts the encrypted content using the current value of the content-key storage section as a content-key so as to obtain a first output data and outputs the first output data to outside of the decryption device.

摘要翻译： 解密装置包括：内部密钥存储部分，用于存储内部密钥; 内容密钥存储部分，用于存储内容密钥; 确定部分，用于确定内容密钥存储部分的初始状态的值和内容密钥存储部分的当前值是否不同; 以及操作部，所述操作部包括第一解密部，所述第一解密部在将加密内容密钥输入到所述操作部时，使用所述内部密钥对所述加密内容密钥进行解密，以获得内容密钥，并且存储 内容密钥存储部分中的内容密钥，以及第二解密部分，当加密内容被输入到操作部分并且确定部分确定内容密钥存储部分的值处于其初始状态和当前时间 内容密钥存储部的值不同，使用内容密钥存储部的当前值作为内容密钥来解密加密内容，以获得第一输出数据，并将第一输出数据输出到解密之外 设备。

公开(公告)号：US07272856B2

公开(公告)日：2007-09-18

申请号：US09829763

申请日：2001-04-10

申请人： Osamu Shibata ,  Taihei Yugawa ,  Tsutomu Sekibe ,  Yoshiyuki Saito ,  Toshihiko Otake

发明人： Osamu Shibata ,  Taihei Yugawa ,  Tsutomu Sekibe ,  Yoshiyuki Saito ,  Toshihiko Otake

IPC分类号： G06F7/04 ,  H04N7/167

CPC分类号： H04L9/0894 ,  H04L2209/60

摘要： A decryption device includes: an internal-key storage section for storing an internal-key; a content-key storage section for storing a content-key; a determination section for determining whether or not a value of the content-key storage section in its initial state and a current value of the content-key storage section are different; and an operation section, the operation section including a first decrypting section which, when an encrypted content-key is input to the operation section, decrypts the encrypted content-key using the internal-key so as to obtain a content-key and stores the content-key in the content-key storage section, and a second decrypting section which, when an encrypted content is input to the operation section and the determination section determines that the value of the content-key storage section in its initial state and the current value of the content-key storage section are different, decrypts the encrypted content using the current value of the content-key storage section as a content-key so as to obtain a first output data and outputs the first output data to outside of the decryption device.

摘要翻译： 解密装置包括：内部密钥存储部分，用于存储内部密钥; 内容密钥存储部分，用于存储内容密钥; 确定部分，用于确定内容密钥存储部分的初始状态的值和内容密钥存储部分的当前值是否不同; 以及操作部，所述操作部包括第一解密部，所述第一解密部在将加密内容密钥输入到所述操作部时，使用所述内部密钥对所述加密内容密钥进行解密，以获得内容密钥，并且存储 内容密钥存储部分中的内容密钥，以及第二解密部分，当加密内容被输入到操作部分并且确定部分确定内容密钥存储部分的值处于其初始状态和当前时间 内容密钥存储部的值不同，使用内容密钥存储部的当前值作为内容密钥来解密加密内容，以获得第一输出数据，并将第一输出数据输出到解密之外 设备。

公开(公告)号：US07640436B2

公开(公告)日：2009-12-29

申请号：US11838792

申请日：2007-08-14

申请人： Osamu Shibata ,  Taihei Yugawa ,  Tsutomu Sekibe ,  Yoshiyuki Saito ,  Toshihiko Otake

发明人： Osamu Shibata ,  Taihei Yugawa ,  Tsutomu Sekibe ,  Yoshiyuki Saito ,  Toshihiko Otake

IPC分类号： G06F11/30 ,  G06F7/04

CPC分类号： H04L9/0894 ,  H04L2209/60

摘要： A device and method for encrypting content in an encryption device including a content-key storage section is disclosed. The method includes generating a content-key used for encrypting content based on random numbers and storing the generated content-key in the content-key storage section, encrypting the content-key used for encrypting the content so as to obtain an encrypted content-key and outputting the encrypted content-key to outside of the encryption device, determining whether or not a value of the content-key storage section in its initial state and a current value of the content-key storage section are different, and when it is determined that the value of the content-key storage section in its initial state and the current value of the content-key storage section are different, encrypting the content using the current value of the content-key storage section as a content-key so as to obtain a second output data and output the second output data to outside of the encryption device, wherein, for the determination step, a register stores a value of the content-key storage section at the time that said register receives a Power On Reset (POR) signal, and wherein the POR signal is a signal which pulses only once immediately after power-on or immediately after reset, so that the content-key storage section is in an initial state immediately after a corresponding power-on or reset of the encryption device.

摘要翻译： 公开了一种用于加密包括内容密钥存储部分的加密装置中的内容的装置和方法。 该方法包括：生成用于基于随机数加密内容的内容密钥，并将生成的内容密钥存储在内容密钥存储部分中，对用于加密内容的内容密钥进行加密，以获得加密的内容密钥 并将加密的内容密钥输出到加密装置的外部，确定内容密钥存储部分的初始状态的值和内容密钥存储部分的当前值是否不同，并且当确定 内容密钥存储部分的初始状态的值和内容密钥存储部分的当前值不同，使用内容密钥存储部分的当前值作为内容密钥对内容进行加密，以便 获取第二输出数据并将第二输出数据输出到加密装置的外部，其中，对于确定步骤，寄存器存储内容密钥存储部分的值， 所述寄存器接收上电复位（POR）信号，并且其中POR信号是在上电或紧接复位后立即仅脉冲的信号，使得内容密钥存储部分在初始状态之后处于初始状态 相应的加密设备的加电或复位。

公开(公告)号：US07062630B2

公开(公告)日：2006-06-13

申请号：US10399236

申请日：2001-10-26

申请人： Toshihiko Otake ,  Tsutomu Sekibe

发明人： Toshihiko Otake ,  Tsutomu Sekibe

IPC分类号： G06F12/00

CPC分类号： G11C8/12 ,  G11C16/16 ,  G11C2216/18

摘要： A storing device can reduce the frequency of the saving operation at a step of rewriting data on the storing mediums. Where q is a size of all the data to write in storing mediums, m is the number of the storing mediums, and p is each block size, a quotient expressed by zm+w+y(z: 0≦z (integer); w: 0≦w

摘要翻译： 存储装置可以在重写存储介质上的数据的步骤时降低保存操作的频率。 其中q是要在存储介质中写入的所有数据的大小，m是存储介质的数量，p是每个块大小，由zm + w + y（z：0 <= z（整数））表示的商， 通过将q除以p来计算; w：0 <= w

公开(公告)号：US07617402B2

公开(公告)日：2009-11-10

申请号：US09828559

申请日：2001-04-06

申请人： Osamu Shibata ,  Tsutomu Sekibe

发明人： Osamu Shibata ,  Tsutomu Sekibe

IPC分类号： G06F11/30 ,  G06F12/14 ,  H04L9/32

CPC分类号： G11B20/0021 ,  G11B20/00086

摘要： A copyright protection system comprises an encryption device and a decryption device. Cryptographic communication is performed between the encryption device and the decryption device using a contents key. The encryption device includes a contents storage section for storing contents, a first contents key generation section for generating the contents key based on a second decryption limitation obtained by updating a first decryption limitation, and a first encryption section for encrypting the contents using the contents key and outputting the encrypted contents. The decryption device includes a second contents key generation section for generating the contents key from the second decryption limitation, and a first decryption section for decrypting the encrypted contents using the contents key generated by the second contents key generation section.

摘要翻译： 版权保护系统包括加密装置和解密装置。 使用内容密钥在加密装置和解密装置之间执行加密通信。 加密装置包括用于存储内容的内容存储部分，用于基于通过更新第一解密限制获得的第二解密限制来生成内容密钥的第一内容密钥生成部分和用于使用内容密钥加密内容的第一加密部分 并输出加密的内容。 解密装置包括：第二内容密钥生成部，用于从第二解密限制生成内容密钥;第一解密部，使用由第二内容密钥生成部生成的内容密钥对加密内容进行解密。

公开(公告)号：US08693379B2

公开(公告)日：2014-04-08

申请号：US12676433

申请日：2009-07-21

申请人： Shinichiro Nishioka ,  Tsutomu Sekibe

发明人： Shinichiro Nishioka ,  Tsutomu Sekibe

IPC分类号： H04L5/16

CPC分类号： H04L5/14 ,  H04L5/16

摘要： A communication system performs communication while switching between full-duplex communication and half-duplex communication. A slave device, which receives command packet signals requesting to write or read data from the master device, stores information in a response packet signal that specifies half-duplex communication in response to one of the received packet signals, and transmits the response packet signal to the master device, when the number of the received command packet signals has reached the maximum number of the command packet signals storable in a command signal queue.

摘要翻译： 通信系统在全双工通信和半双工通信之间切换时进行通信。 接收请求从主设备写入或读取数据的命令分组信号的从设备响应于所接收的分组信号之一将信息存储在指定半双工通信的响应分组信号中，并将响应分组信号发送到 当接收到的命令分组信号的数量已经达到可存储在命令信号队列中的命令分组信号的最大数量时，主设备。

公开(公告)号：US08351356B2

公开(公告)日：2013-01-08

申请号：US12674045

申请日：2009-06-11

申请人： Shinichiro Nishioka ,  Hiroshi Suenaga ,  Tsutomu Sekibe ,  Isao Kato ,  Tadashi Ono ,  Hideyuki Yamada

发明人： Shinichiro Nishioka ,  Hiroshi Suenaga ,  Tsutomu Sekibe ,  Isao Kato ,  Tadashi Ono ,  Hideyuki Yamada

IPC分类号： H04L5/16 ,  H04L5/14 ,  G06F13/12

CPC分类号： H04L25/0272 ,  H04L5/14 ,  H04L5/1438 ,  H04L5/16

摘要： A data communication system for starting transmission and reception of target data for processing upon recognition that switching between communication modes is completed. The data communication system includes a master communication device and a slave communication device that continuously perform, at a time of switching from half-duplex communication to full-duplex communication, (i) a handshake using a directional control code indicating the switching and a preamble code indicating completion of the switching and (ii) a handshake using the preamble code and an acknowledge code indicating receipt of the preamble code, whereby each of the devices recognizes that the switching between communication modes by the opposite device is completed and starts transmission and reception of the target data.

摘要翻译： 一种数据通信系统，用于在识别出完成通信模式之间的切换的情况下开始用于处理的目标数据的发送和接收。 数据通信系统包括在从半双工通信切换到全双工通信时连续执行主通信设备和从通信设备，（i）使用指示切换的方向控制代码的握手和前导码 指示切换完成的代码和（ii）使用前导码的握手和指示接收前导码的确认代码，由此每个设备识别出相对设备的通信模式之间的切换完成并开始发送和接收 的目标数据。

公开(公告)号：US20110182216A1

公开(公告)日：2011-07-28

申请号：US12995558

申请日：2009-05-29

申请人： Tadashi Ono ,  Isao Kato ,  Hideyuki Yamada ,  Shinichiro Nishioka ,  Hiroshi Suenaga ,  Tsutomu Sekibe

发明人： Tadashi Ono ,  Isao Kato ,  Hideyuki Yamada ,  Shinichiro Nishioka ,  Hiroshi Suenaga ,  Tsutomu Sekibe

IPC分类号： H04B1/44

CPC分类号： H04L5/16 ,  H04L5/18 ,  H04L25/14

摘要： An interrupt request cannot be transmitted while a data read command or a data write command transmitted from a host device to a slave device is being processed in a half-duplex mode. Disclosed are a host device and a slave device that are set to a full-duplex mode by temporarily switching the communication direction of a first transmission channel or a second transmission channel after completing transmission and reception of a predetermined number of data packets in the half-duplex mode. The host device or the slave device can thus transmit an interrupt request, such as a request associated with a wait status or a busy status, to its communication target using the temporary full-duplex mode. This enables the host device or the slave device to process such an interrupt request during high-speed data transfer performed in the half-duplex mode.

摘要翻译： 当从主机设备发送到从设备的数据读取命令或数据写入命令正在以半双工模式进行处理时，不能发送中断请求。 公开了一种主机设备和从设备，其通过在完成在半双工模式下的预定数量的数据分组的传输和接收之后临时切换第一传输信道或第二传输信道的通信方向而被设置为全双工模式， 双工模式。 因此主机设备或从设备可以使用临时全双工模式向其通信目标传送诸如与等待状态或忙状态相关联的请求的中断请求。 这使得主机设备或从设备在半双工模式下执行的高速数据传输期间处理这样的中断请求。

公开(公告)号：US20100142418A1

公开(公告)日：2010-06-10

申请号：US12665079

申请日：2009-05-13

申请人： Shinichiro Nishioka ,  Keisuke Sakai ,  Masayuki Toyama ,  Tsutomu Sekibe

发明人： Shinichiro Nishioka ,  Keisuke Sakai ,  Masayuki Toyama ,  Tsutomu Sekibe

IPC分类号： H04B1/44

CPC分类号： H04L5/14 ,  H04L5/1438 ,  H04L5/16 ,  H04W72/1247

摘要： The object of the present invention is to provide a data communication system in which a communication scheme is switched without a decrease in communication efficiency.In a data communication system including first and second devices that are capable of performing full-duplex communication and half-duplex communication via a set of channels connecting the first and second devices, the first device transmits, via the set of channels, to the second device a first communication flag indicating whether half-duplex communication is to be specified in accordance with a communication processing capability of the first device, the second device transmits, via the set of channels, to the first device a second communication flag indicating whether half-duplex communication is to be specified in accordance with a communication processing capability of the second device, and the first and second devices select either a full-duplex communication scheme or a half-duplex communication scheme depending on the first and second communication flags in compliance with a procedure predetermined between the devices and perform data communication in the selected communication scheme, the selected communication scheme conforming to the communication processing capability of each device.

摘要翻译： 本发明的目的是提供一种在不降低通信效率的情况下切换通信方案的数据通信系统。 在包括能够经由连接第一和第二设备的一组通道执行全双工通信和半双工通信的第一和第二设备的数据通信系统中，第一设备经由一组信道发送到第二设备 设备指示是否根据第一设备的通信处理能力指定半双工通信的第一通信标志，第二设备经由该组信道向第一设备发送第二通信标志， 双向通信将根据第二设备的通信处理能力来指定，并且第一和第二设备根据第一和第二通信标志选择全双工通信方案或半双工通信方案，其符合 在所述设备之间预定的过程，并在所选择的通信中进行数据通信 离子方案，所选择的通信方案符合每个设备的通信处理能力。