公开(公告)号：US20100296652A1

公开(公告)日：2010-11-25

申请号：US12801101

申请日：2010-05-21

Applicant: Tsuyoshi Nakayama ,  Chikako Mori ,  Yoshimichi Kitaya ,  Yoshikazu Kuno

Inventor： Tsuyoshi Nakayama ,  Chikako Mori ,  Yoshimichi Kitaya ,  Yoshikazu Kuno

IPC: H04L9/00

CPC classification number: G06F21/10 ,  G11B20/00086 ,  G11B20/00202 ,  G11B20/0021 ,  G11B20/00847 ,  H04L9/0836 ,  H04L2209/60

Abstract: There are provided an information recording medium, an information processing apparatus, an information processing method, and a computer program, which can realize users' convenience for using content in accordance with a license and copyright protection. An information recording medium stores an encrypted content file including encrypted content, usage right information of the encrypted content, and encryption key information necessary for a decrypting process for the encrypted content. Thus, a user can acquire a license (usage right information) and key information necessary for decryption of the content, together with the content, from the information recording medium, without acquiring the license (usage rights) by connection to a license provider. Therefore, it is no longer necessary to perform a process of acquiring the license (usage rights) from the license provider when the content is to be used, whereby user convenience is improved, and license-based content copyright management can also be ensured.

Abstract translation: 提供了一种信息记录介质，信息处理设备，信息处理方法和计算机程序，其可以实现用户根据许可和版权保护使用内容的便利。 信息记录介质存储包含加密内容的加密内容文件，加密内容的使用权信息以及加​​密内容的解密处理所需的加密密钥信息。 因此，用户可以从信息记录介质获取内容的解密所需的许可证（使用权利信息）和密钥信息，而不通过连接到许可证提供者获取许可证（使用权限）。 因此，在使用内容的情况下，不再需要从许可证提供者获取许可证（使用权利）的处理，从而提高用户便利性，还可以确保基于许可的内容版权管理。

公开(公告)号：US20060080742A1

公开(公告)日：2006-04-13

申请号：US10515271

申请日：2004-03-05

Applicant: Tsuyoshi Nakayama ,  Chikako Mori ,  Yoshimichi Kitaya ,  Yoshikazu Kouno

Inventor： Tsuyoshi Nakayama ,  Chikako Mori ,  Yoshimichi Kitaya ,  Yoshikazu Kouno

IPC: H04L9/32

CPC classification number: G06F21/10 ,  G11B20/00086 ,  G11B20/00202 ,  G11B20/0021 ,  G11B20/00847 ,  H04L9/0836 ,  H04L2209/60

Abstract: There are provided an information recording medium, an information processing apparatus, an information processing method, and a computer program, which can realize users' convenience for using content in accordance with a license and copyright protection. An information recording medium stores an encrypted content file including encrypted content, usage right information of the encrypted content, and encryption key information necessary for a decrypting process for the encrypted content. Thus, a user can acquire a license (usage right information) and key information necessary for decryption of the content, together with the content, from the information recording medium, without acquiring the license (usage rights) by connection to a license provider. Therefore, it is no longer necessary to perform a process of acquiring the license (usage rights) from the license provider when the content is to be used, whereby user convenience is improved, and license-based content copyright management can also be ensured.

Abstract translation: 提供了一种信息记录介质，信息处理设备，信息处理方法和计算机程序，其可以实现用户根据许可和版权保护使用内容的便利。 信息记录介质存储包含加密内容的加密内容文件，加密内容的使用权信息以及加​​密内容的解密处理所需的加密密钥信息。 因此，用户可以从信息记录介质获取内容的解密所需的许可证（使用权利信息）和密钥信息，而不通过连接到许可证提供者获取许可证（使用权限）。 因此，在使用内容的情况下，不再需要从许可证提供者获取许可证（使用权利）的处理，从而提高用户便利性，并且还可以确保基于许可的内容版权管理。

公开(公告)号：US08712048B2

公开(公告)日：2014-04-29

申请号：US12801101

申请日：2010-05-21

Applicant: Tsuyoshi Nakayama ,  Chikako Mori ,  Yoshimichi Kitaya ,  Yoshikazu Kouno

Inventor： Tsuyoshi Nakayama ,  Chikako Mori ,  Yoshimichi Kitaya ,  Yoshikazu Kouno

IPC: G06F21/00

CPC classification number: G06F21/10 ,  G11B20/00086 ,  G11B20/00202 ,  G11B20/0021 ,  G11B20/00847 ,  H04L9/0836 ,  H04L2209/60

Abstract: There are provided an information recording medium, an information processing apparatus, an information processing method, and a computer program, which can realize users' convenience for using content in accordance with a license and copyright protection. An information recording medium stores an encrypted content file including encrypted content, usage right information of the encrypted content, and encryption key information necessary for a decrypting process for the encrypted content. Thus, a user can acquire a license (usage right information) and key information necessary for decryption of the content, together with the content, from the information recording medium, without acquiring the license (usage rights) by connection to a license provider. Therefore, it is no longer necessary to perform a process of acquiring the license (usage rights) from the license provider when the content is to be used, whereby user convenience is improved, and license-based content copyright management can also be ensured.

Abstract translation: 提供了一种信息记录介质，信息处理设备，信息处理方法和计算机程序，其可以实现用户根据许可和版权保护使用内容的便利。 信息记录介质存储包含加密内容的加密内容文件，加密内容的使用权信息和加密内容的解密处理所需的加密密钥信息。 因此，用户可以从信息记录介质获取内容的解密所需的许可证（使用权利信息）和密钥信息，而不通过连接到许可证提供者获取许可证（使用权限）。 因此，在使用内容的情况下，不再需要从许可证提供者获取许可证（使用权利）的处理，从而提高用户便利性，还可以确保基于许可的内容版权管理。

公开(公告)号：US07734047B2

公开(公告)日：2010-06-08

申请号：US10515271

申请日：2004-03-05

Applicant: Tsuyoshi Nakayama ,  Chikako Mori ,  Yoshimichi Kitaya ,  Yoshikazu Kouno

Inventor： Tsuyoshi Nakayama ,  Chikako Mori ,  Yoshimichi Kitaya ,  Yoshikazu Kouno

IPC: H04N7/167

CPC classification number: G06F21/10 ,  G11B20/00086 ,  G11B20/00202 ,  G11B20/0021 ,  G11B20/00847 ,  H04L9/0836 ,  H04L2209/60

Abstract: There are provided an information recording medium, an information processing apparatus, an information processing method, and a computer program, which can realize users' convenience for using content in accordance with a license and copyright protection. An information recording medium stores an encrypted content file including encrypted content, usage right information of the encrypted content, and encryption key information necessary for a decrypting process for the encrypted content. Thus, a user can acquire a license (usage right information) and key information necessary for decryption of the content, together with the content, from the information recording medium, without acquiring the license (usage rights) by connection to a license provider. Therefore, it is no longer necessary to perform a process of acquiring the license (usage rights) from the license provider when the content is to be used, whereby user convenience is improved, and license-based content copyright management can also be ensured.

Abstract translation: 提供了一种信息记录介质，信息处理设备，信息处理方法和计算机程序，其可以实现用户根据许可和版权保护使用内容的便利。 信息记录介质存储包含加密内容的加密内容文件，加密内容的使用权信息和加密内容的解密处理所需的加密密钥信息。 因此，用户可以从信息记录介质获取内容的解密所需的许可证（使用权利信息）和密钥信息，而不通过连接到许可证提供者获取许可证（使用权限）。 因此，在使用内容的情况下，不再需要从许可证提供者获取许可证（使用权利）的处理，从而提高用户便利性，还可以确保基于许可的内容版权管理。