公开(公告)号：US07673153B1

公开(公告)日：2010-03-02

申请号：US09524358

申请日：2000-03-14

申请人： Tateo Oishi ,  Takumi Okaue ,  Nobuyuki Kihara ,  Teppei Yokota

发明人： Tateo Oishi ,  Takumi Okaue ,  Nobuyuki Kihara ,  Teppei Yokota

IPC分类号： G06F5/00

CPC分类号： G11C16/22 ,  G06F17/30067 ,  G06F21/445 ,  G06F21/602 ,  G06F21/79 ,  G06F2221/0737 ,  G06F2221/2107 ,  G06F2221/2137 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00478 ,  G11B20/00507 ,  G11B20/00514 ,  G11B20/00528 ,  G11B20/00753 ,  G11B20/10 ,  G11B20/12

摘要： A data processing apparatus includes an encrypting apparatus for encrypting data in units of an encryption block having a predetermined data length. A processing apparatus is also provided for performing predetermined processing on data in units of a processing block having a data length of a whole multiple of the predetermined length of the encryption block. A controller is also provided for writing the encrypted data in a storage medium so that the data positioned in the same encryption block is also positioned in the same processing block. The controller also reads the data from the storage means in units of the processing block when the data is to be read out.

摘要翻译： 数据处理装置包括用于以具有预定数据长度的加密块为单位加密数据的加密装置。 还提供一种处理装置，用于以具有整个加密块的预定长度的整数倍的数据长度的处理块为单位执行对数据的预定处理。 还提供了一种用于将加密数据写入存储介质中的控制器，使得位于相同加密块中的数据也位于相同的处理块中。 当要读取数据时，控制器还以处理块为单位从存储装置读取数据。

公开(公告)号：US06792539B1

公开(公告)日：2004-09-14

申请号：US09524972

申请日：2000-03-14

申请人： Tateo Oishi ,  Ryuji Ishiguro ,  Takumi Okaue ,  Nobuyuki Kihara ,  Teppei Yokota

发明人： Tateo Oishi ,  Ryuji Ishiguro ,  Takumi Okaue ,  Nobuyuki Kihara ,  Teppei Yokota

IPC分类号： G06F1300

CPC分类号： G11C16/22 ,  G06F17/30067 ,  G06F21/10 ,  G06F21/31 ,  G06F21/445 ,  G06F21/602 ,  G06F21/6209 ,  G06F21/72 ,  G06F21/78 ,  G06F21/79 ,  G06F2221/0737 ,  G06F2221/2137 ,  G11B20/00007 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00282 ,  G11B20/00507 ,  G11B20/00521 ,  G11B20/00768 ,  G11B20/10 ,  G11B27/026 ,  G11B2020/00014 ,  G11B2020/00043 ,  G11B2020/10546 ,  G11C16/20 ,  G11C2207/16

摘要： The present invention provides a data processing method and apparatus capable of shortening the processing time required when editing previously encrypted track data. An example of a transfer of audio track data between a portable player and a storage device is provided. The track data is comprised of one or more parts, each of which in turn is comprised of a series of data blocks. Each block of the track data is encrypted prior to transfer using a block key. The block keys are determined in such a manner that subsequent editing of the track data which results in redistribution of the parts does not require full decryption of the data.

摘要翻译： 本发明提供一种数据处理方法和装置，其能够缩短编辑之前加密的轨道数据所需的处理时间。 提供了在便携式播放器和存储装置之间传送音轨数据的示例。 轨道数据由一个或多个部分组成，每个部分又由一系列数据块组成。 轨道数据的每个块在使用块密钥传输之前被加密。 以这样的方式确定块密钥，使得导致部件的再分配的轨道数据的后续编辑不需要数据的完全解密。

公开(公告)号：US07167561B1

公开(公告)日：2007-01-23

申请号：US09674651

申请日：2000-03-03

申请人： Nobuyuki Kihara ,  Teppei Yokota ,  Takumi Okaue

发明人： Nobuyuki Kihara ,  Teppei Yokota ,  Takumi Okaue

IPC分类号： H04N7/167

CPC分类号： G11C16/22 ,  G06F17/30067 ,  G06F21/10 ,  G06F21/31 ,  G06F21/445 ,  G06F21/602 ,  G06F21/72 ,  G06F21/78 ,  G06F21/79 ,  G06F2221/0737 ,  G06F2221/2107 ,  G06F2221/2137 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00478 ,  G11B20/10 ,  G11C7/16 ,  G11C16/20 ,  G11C2207/16

摘要： A recording apparatus is disclosed, that comprises a compression process means for compressing an input digital signal corresponding to a predetermined compression process and segmenting the compressed digital signal into blocks, a fixed value generating means for generating a predetermined fixed value, an adding means for adding the fixed value generated by the fixed value generating means at a predetermined timing to the blocks of the digital signal compressed by the compression process means, an encrypting means for encrypting the fixed value and the compressed digital signal added by the adding means, and a recording means for recording the fixed value and the compressed digital signal encrypted by the encrypting means to a record medium.

摘要翻译： 公开了一种记录装置，包括：压缩处理装置，用于压缩与预定压缩处理相对应的输入数字信号并将压缩数字信号分割成块;固定值产生装置，用于产生预定的固定值;加法装置， 由固定值产生装置在预定时刻产生的固定值由压缩处理装置压缩的数字信号的块，加密装置，用于加密由加法装置添加的固定值和压缩数字信号，以及记录 用于将由加密装置加密的固定值和压缩数字信号记录到记录介质的装置。

公开(公告)号：US07092911B2

公开(公告)日：2006-08-15

申请号：US09534744

申请日：2000-03-24

申请人： Teppei Yokota ,  Nobuyuki Kihara ,  Eiichi Yamada ,  Takumi Okaue

发明人： Teppei Yokota ,  Nobuyuki Kihara ,  Eiichi Yamada ,  Takumi Okaue

IPC分类号： G06F17/60

CPC分类号： G11B20/00086 ,  G06F21/10 ,  G06F21/445 ,  G06Q30/0283 ,  G11B20/0021 ,  G11B20/00478 ,  G11B20/00746 ,  G11C7/16 ,  G11C2207/16

摘要： A reproducing apparatus for reproducing data from a record medium having a program area and a management area, the program area being used for recording a plurality of files, the management area being used for managing forging prohibition information against a particular file recorded in the program area is disclosed, the apparatus comprising a calculating means for calculating the forging prohibition information managed in the management area of the record medium whenever a file recorded in the recorde medium is reproduced, a comparing means for comparing a value calculated by the calculating means corresponding to a former reproduction command with a value calculated by the calculating means corresponding to a current reproduction command, and a controlling means for permitting the file corresponding to the current reproduction command to be reproduced when the value calculated corresponding to the former reproduction command is the same as the value calculated corresponding to the current reproduction command as the result of the comparing means.

公开(公告)号：US20060029230A1

公开(公告)日：2006-02-09

申请号：US11243218

申请日：2005-10-04

申请人： Nobuyuki Kihara ,  Teppei Yokota ,  Takumi Okaue

发明人： Nobuyuki Kihara ,  Teppei Yokota ,  Takumi Okaue

IPC分类号： H04K1/00

CPC分类号： G11C16/22 ,  G06F17/30067 ,  G06F21/10 ,  G06F21/31 ,  G06F21/445 ,  G06F21/602 ,  G06F21/72 ,  G06F21/78 ,  G06F21/79 ,  G06F2221/0737 ,  G06F2221/2107 ,  G06F2221/2137 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00478 ,  G11B20/10 ,  G11C7/16 ,  G11C16/20 ,  G11C2207/16

摘要： A recording apparatus is disclosed, that comprises a compression process means for compressing an input digital signal corresponding to a predetermined compression process and segmenting the compressed digital signal into blocks, a fixed value generating means for generating a predetermined fixed value, an adding means for adding the fixed value generated by the fixed value generating means at a predetermined timing to the blocks of the digital signal compressed by the compression process means, an encrypting means for encrypting the fixed value and the compressed digital signal added by the adding means, and a recording means for recording the fixed value and the compressed digital signal encrypted by the encrypting means to a record medium.

公开(公告)号：US07155013B2

公开(公告)日：2006-12-26

申请号：US11243218

申请日：2005-10-04

申请人： Nobuyuki Kihara ,  Teppei Yokota ,  Takumi Okaue

发明人： Nobuyuki Kihara ,  Teppei Yokota ,  Takumi Okaue

IPC分类号： H04N7/167

CPC分类号： G11C16/22 ,  G06F17/30067 ,  G06F21/10 ,  G06F21/31 ,  G06F21/445 ,  G06F21/602 ,  G06F21/72 ,  G06F21/78 ,  G06F21/79 ,  G06F2221/0737 ,  G06F2221/2107 ,  G06F2221/2137 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00478 ,  G11B20/10 ,  G11C7/16 ,  G11C16/20 ,  G11C2207/16

摘要： A recording apparatus is disclosed, that comprises a compression process means for compressing an input digital signal corresponding to a predetermined compression process and segmenting the compressed digital signal into blocks, a fixed value generating means for generating a predetermined fixed value, an adding means for adding the fixed value generated by the fixed value generating means at a predetermined timing to the blocks of the digital signal compressed by the compression process means, an encrypting means for encrypting the fixed value and the compressed digital signal added by the adding means, and a recording means for recording the fixed value and the compressed digital signal encrypted by the encrypting means to a record medium.

摘要翻译： 公开了一种记录装置，包括：压缩处理装置，用于压缩与预定压缩处理相对应的输入数字信号并将压缩数字信号分割成块;固定值产生装置，用于产生预定的固定值;加法装置， 由固定值产生装置在预定时刻产生的固定值由压缩处理装置压缩的数字信号的块，加密装置，用于加密由加法装置添加的固定值和压缩数字信号，以及记录 用于将由加密装置加密的固定值和压缩数字信号记录到记录介质的装置。

公开(公告)号：US20050060540A1

公开(公告)日：2005-03-17

申请号：US10972969

申请日：2004-10-25

申请人： Takumi Okaue ,  Yoshihito Ishibashi ,  Yukihiro Sakamoto ,  Asami Mizuno ,  Nobuyuki Kihara ,  Teppei Yokota

发明人： Takumi Okaue ,  Yoshihito Ishibashi ,  Yukihiro Sakamoto ,  Asami Mizuno ,  Nobuyuki Kihara ,  Teppei Yokota

IPC分类号： G06F12/14 ,  G06F1/00 ,  G06F17/30 ,  G06F21/10 ,  G06F21/31 ,  G06F21/44 ,  G06F21/60 ,  G06F21/72 ,  G06F21/78 ,  G06F21/79 ,  G11B20/00 ,  G11B20/10 ,  G11C16/20 ,  G11C16/22 ,  H04K1/00 ,  H04L9/00

CPC分类号： H04K1/00 ,  G06F17/30067 ,  G06F21/10 ,  G06F21/31 ,  G06F21/445 ,  G06F21/602 ,  G06F21/72 ,  G06F21/78 ,  G06F21/79 ,  G06F2221/0711 ,  G06F2221/0737 ,  G06F2221/2137 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00253 ,  G11B20/00507 ,  G11B20/10 ,  G11C16/20 ,  G11C16/22 ,  G11C2207/16

摘要： A security unit to prevent unauthorized retrieval of data includes an encrypting unit for encrypting data in accordance with commands received by the security unit, and a common register for storing both intermediate results and final results of the data encryption. A switching element operatively coupled to the register selectively outputs the contents of the register. The switching element is controlled to prevent external access to the intermediate results of the encryption. The security unit is particularly useful as part of a memory unit that is attachable to a recording/reproduction device such as a digital audio recorder/player.

摘要翻译： 用于防止未经授权的数据检索的安全单元包括：加密单元，用于根据安全单元接收的命令加密数据;以及公共寄存器，用于存储数据加密的中间结果和最终结果。 可操作地耦合到寄存器的开关元件选择性地输出寄存器的内容。 控制开关元件以防止外部访问加密的中间结果。 安全单元作为可连接到诸如数字音频记录器/播放器的记录/再现设备的存储器单元的一部分是特别有用的。

公开(公告)号：US20090252477A1

公开(公告)日：2009-10-08

申请号：US12379110

申请日：2009-02-12

申请人： Teppei Yokota ,  Nobuyuki Kihara ,  Takumi Okaue

发明人： Teppei Yokota ,  Nobuyuki Kihara ,  Takumi Okaue

IPC分类号： H04N5/91

CPC分类号： G10H1/0041 ,  G10H2240/165 ,  G10H2250/575

摘要： A reproducing apparatus has three reproducing modes that are a first mode, a second mode, and a third mode. In the first mode, when a program that has been reproduction restricted is tried to be reproduced, the reproducing operation is paused and the user is asked whether he or she wants to reproduce the program. Corresponding to the user's reply, the reproducing operation is performed or prohibited. In the second mode, a program that has been reproduction restricted is prohibited from being reproduced. In the third mode, a program that has been reproduction restricted is unconditionally reproduced. When the power of the apparatus is turned on at step S31, a prompt that causes the user to select one of the first mode, the second mode, and the third mode is displayed. At step S33, a process for designating a mode is performed. Information of the designated mode is stored in a nonvolatile memory.

摘要翻译： 再现装置具有作为第一模式，第二模式和第三模式的三种再现模式。 在第一模式中，当尝试再现限制的节目时，再现操作被暂停，询问用户是否要再现该节目。 对应于用户的回复，执行或禁止再现操作。 在第二模式中，禁止再现被限制的节目。 在第三模式中，无限制地再现限制了再现的节目。 当在步骤S31打开设备的电源时，显示使用户选择第一模式，第二模式和第三模式之一的提示。 在步骤S33，执行用于指定模式的处理。 指定模式的信息存储在非易失性存储器中。

公开(公告)号：US07124436B2

公开(公告)日：2006-10-17

申请号：US10972969

申请日：2004-10-25

申请人： Takumi Okaue ,  Yoshihito Ishibashi ,  Yukihiro Sakamoto ,  Asami Mizuno ,  Nobuyuki Kihara ,  Teppei Yokota

发明人： Takumi Okaue ,  Yoshihito Ishibashi ,  Yukihiro Sakamoto ,  Asami Mizuno ,  Nobuyuki Kihara ,  Teppei Yokota

IPC分类号： H04L9/22 ,  G06F11/00

CPC分类号： H04K1/00 ,  G06F17/30067 ,  G06F21/10 ,  G06F21/31 ,  G06F21/445 ,  G06F21/602 ,  G06F21/72 ,  G06F21/78 ,  G06F21/79 ,  G06F2221/0711 ,  G06F2221/0737 ,  G06F2221/2137 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00253 ,  G11B20/00507 ,  G11B20/10 ,  G11C16/20 ,  G11C16/22 ,  G11C2207/16

摘要： A security unit to prevent unauthorized retrieval of data includes an encrypting unit for encrypting data in accordance with commands received by the security unit, and a common register for storing both intermediate results and final results of the data encryption. A switching element operatively coupled to the register selectively outputs the contents of the register. The switching element is controlled to prevent external access to the intermediate results of the encryption. The security unit is particularly useful as part of a memory unit that is attachable to a recording/reproduction device such as a digital audio recorder/player.

摘要翻译： 用于防止未经授权的数据检索的安全单元包括：加密单元，用于根据安全单元接收的命令加密数据;以及公共寄存器，用于存储数据加密的中间结果和最终结果。 可操作地耦合到寄存器的开关元件选择性地输出寄存器的内容。 控制开关元件以防止对加密的中间结果的外部访问。 安全单元作为可连接到诸如数字音频记录器/播放器的记录/再现设备的存储器单元的一部分是特别有用的。

公开(公告)号：US20060095381A1

公开(公告)日：2006-05-04

申请号：US11297787

申请日：2005-12-08

申请人： Teppei Yokota ,  Nobuyuki Kihara ,  Eiichi Yamada ,  Takumi Okaue

发明人： Teppei Yokota ,  Nobuyuki Kihara ,  Eiichi Yamada ,  Takumi Okaue

IPC分类号： G06Q99/00

CPC分类号： G11B20/00086 ,  G06F21/10 ,  G06F21/445 ,  G06Q30/0283 ,  G11B20/0021 ,  G11B20/00478 ,  G11B20/00746 ,  G11C7/16 ,  G11C2207/16

摘要： A reproducing apparatus for reproducing data from a record medium having a program area and a management area, the program area being used for recording a plurality of files, the management area being used for managing forging prohibition information against a particular file recorded in the program area is disclosed, the apparatus comprising a calculating means for calculating the forging prohibition information managed in the management area of the record medium whenever a file recorded in the recorde medium is reproduced, a comparing means for comparing a value calculated by the calculating means corresponding to a former reproduction command with a value calculated by the calculating means corresponding to a current reproduction command, and a controlling means for permitting the file corresponding to the current reproduction command to be reproduced when the value calculated corresponding to the former reproduction command is the same as the value calculated corresponding to the current reproduction command as the result of the comparing means.