公开(公告)号：US20070169203A1

公开(公告)日：2007-07-19

申请号：US11592265

申请日：2006-11-03

申请人： Bong-seon Kim ,  Young-sun Yoon ,  Su-hyun Nam

发明人： Bong-seon Kim ,  Young-sun Yoon ,  Su-hyun Nam

IPC分类号： H04N7/16

CPC分类号： H04N7/17318 ,  H04L9/0825 ,  H04L9/0827 ,  H04L9/321 ,  H04L63/0492 ,  H04L63/06 ,  H04L2209/60 ,  H04L2463/062 ,  H04N21/25816 ,  H04N21/25875 ,  H04N21/43637 ,  H04N21/4627 ,  H04N21/4788 ,  H04N21/63345

摘要： A method and an apparatus for transmitting content from a first device that joins a domain to a second device that does not join the domain are provided. If the second device which does not join the domain is adjacent to the first device which joins the domain, by encrypting a content key corresponding to the content to be transmitted to the second device which does not join the domain using a key of the second device which does not join the domain, and then transmitting the content and the encrypted content key to the second device which does not join the domain, the second device which does not join the domain can use the content having an access authority limitation, which can be used by only devices which join the domain.

摘要翻译： 提供了一种用于从连接域的第一设备向不连接域的第二设备发送内容的方法和装置。 如果不加入域的第二设备与加入域的第一设备相邻，则通过使用第二设备的密钥加密与不发送到第二设备的内容相对应的内容密钥 其不加入域，然后将内容和加密内容密钥发送到不加入域的第二设备，不加入域的第二设备可以使用具有访问权限限制的内容，其可以是 仅由加入域的设备使用。

公开(公告)号：US20070156590A1

公开(公告)日：2007-07-05

申请号：US11509000

申请日：2006-08-24

申请人： Young-sun Yoon ,  Bong-seon Kim ,  Su-hyun Nam

发明人： Young-sun Yoon ,  Bong-seon Kim ,  Su-hyun Nam

IPC分类号： G06Q99/00

CPC分类号： G06F21/10 ,  H04N21/43615 ,  H04N21/4627 ,  H04N21/8355

摘要： A method and apparatus for protecting digital content in a digital rights management (DRM) system. The method of re-importing a second content file, which was imported from a first content file, as a third content file, includes determining whether to allow the re-importing of the second content file based on a difference between a current usage bind of the content determined in an import process and an original usage bind of the content and changing a usage bind of the content from the current usage bind to the original usage bind based on the result of determination. Therefore, when the usage bind of content, which had to be a domain bound, was inevitably determined to be a device bound due to a situation at the time of a content import process, the content can be freely used in the domain bound, which is the original usage bind of the content, according to usage constraints information (UCI) of the content.

摘要翻译： 一种用于保护数字版权管理（DRM）系统中的数字内容的方法和装置。 将从第一内容文件导入的第二内容文件重新导入作为第三内容文件的方法包括基于当前使用绑定之间的差异来确定是否允许重新导入第二内容文件 在导入过程中确定的内容和内容的原始使用绑定以及基于确定结果将当前使用绑定的内容的使用绑定改变为原始使用绑定。 因此，当内容必须是域绑定的使用绑定不可避免地被确定为由于在内容导入处理时的情况而绑定的设备时，可以在域绑定中自由使用该内容，其中 是内容的原始使用绑定，根据内容的使用约束信息（UCI）。

公开(公告)号：US20070022088A1

公开(公告)日：2007-01-25

申请号：US11488692

申请日：2006-07-19

申请人： Young-kuk You ,  Hyun-kwon Chung ,  Jun-bum Shin ,  Yun-ho Choi ,  Su-hyun Nam

发明人： Young-kuk You ,  Hyun-kwon Chung ,  Jun-bum Shin ,  Yun-ho Choi ,  Su-hyun Nam

IPC分类号： G06F17/30

CPC分类号： G11B20/00086 ,  G06F21/10 ,  G11B19/02 ,  G11B20/00427 ,  G11B20/00449 ,  G11B2020/1288 ,  G11B2220/2541 ,  H04N21/4405

摘要： Provided are a method and apparatus for effectively fixing scrambled content. The method includes checking fixing information for a program map table (PMT) packet of packets constituting the content, the fixing information being used to fix a transformed part of the content; extracting location information of a next PMT packet containing fixing data for fixing the transformed part of the content from the fixing information of the PMT packet; and fixing the transformed part of the content by using the fixing data in the next PMT packet indicated by the extracted location information. Accordingly, it is possible to easily detect a location of the content, which stores the fixing information, thereby expediting fixing of the transformed content.

摘要翻译： 提供了一种有效地固定加扰内容的方法和装置。 该方法包括：检查构成内容的分组的节目映射表（PMT）分组的固定信息，固定信息用于固定内容的变换部分; 从PMT分组的固定信息中提取包含用于固定内容的转换部分的固定数据的下一个PMT分组的位置信息; 以及通过使用由所提取的位置信息指示的下一个PMT分组中的固定数据来固定内容的变换部分。 因此，可以容易地检测存储定影信息的内容的位置，从而加速变形内容的固定。

公开(公告)号：US08687801B2

公开(公告)日：2014-04-01

申请号：US11648677

申请日：2007-01-03

申请人： Bong-seon Kim ,  Young-sun Yoon ,  Su-hyun Nam

发明人： Bong-seon Kim ,  Young-sun Yoon ,  Su-hyun Nam

IPC分类号： H04K1/00

CPC分类号： H04N21/63345 ,  G06F21/10 ,  H04L63/0428 ,  H04L63/062 ,  H04L63/10 ,  H04L2209/603 ,  H04L2463/101 ,  H04N21/2541 ,  H04N21/43615 ,  H04N21/4627 ,  H04N21/835

摘要： Provided are a method and apparatus for acquiring data regarding a domain for the protection of digital content, and more particularly, a method and apparatus for acquiring domain information and domain-related data in which content received from an external source is converted into content that complies with a set of rules of a digital rights management (DRM) system and a license for the use of the result of the conversion is issued by receiving domain information including a domain key identifier from a domain information providing apparatus and receiving an updated domain key that is a valid domain key currently being used in a domain from a DRM object providing apparatus.

摘要翻译： 提供了一种用于获取关于数字内容保护的域的数据的方法和装置，更具体地，涉及一种用于获取域信息和域相关数据的方法和装置，其中从外部源接收的内容被转换为符合的内容 通过从域信息提供装置接收包括域密钥标识符的域信息并接收更新的域密钥来发布数字版权管理（DRM）系统的一组规则和用于使用转换结果的许可证， 是当前在DRM对象提供装置的域中使用的有效域密钥。

公开(公告)号：US08503672B2

公开(公告)日：2013-08-06

申请号：US12111424

申请日：2008-04-29

申请人： Jun Yao ,  Choong-hoon Lee ,  Su-hyun Nam

发明人： Jun Yao ,  Choong-hoon Lee ,  Su-hyun Nam

IPC分类号： H04L29/06

CPC分类号： H04L9/083 ,  H04L2209/60

摘要： Provided is a method of protecting a content consumer's privacy. The method includes classifying contents into content groups, encrypting the contents using different encryption keys, generating a plurality of decryption keys each of which can decrypt all contents in each of the content groups, and provides the generated decryption keys to authorized clients, wherein each client is provided with a different decryption key.

摘要翻译： 提供了一种保护内容消费者的隐私的方法。 该方法包括将内容分类为内容组，使用不同的加密密钥加密内容，生成多个解密密钥，每个解密密钥可以对每个内容组中的所有内容进行解密，并将生成的解密密钥提供给授权客户端，其中每个客户端 被提供有不同的解密密钥。

公开(公告)号：US08428256B2

公开(公告)日：2013-04-23

申请号：US11488692

申请日：2006-07-19

申请人： Young-kuk You ,  Hyun-kwon Chung ,  Jun-bum Shin ,  Yun-ho Choi ,  Su-hyun Nam

发明人： Young-kuk You ,  Hyun-kwon Chung ,  Jun-bum Shin ,  Yun-ho Choi ,  Su-hyun Nam

IPC分类号： G06F21/00

CPC分类号： G11B20/00086 ,  G06F21/10 ,  G11B19/02 ,  G11B20/00427 ,  G11B20/00449 ,  G11B2020/1288 ,  G11B2220/2541 ,  H04N21/4405

摘要： Provided are a method and apparatus for effectively fixing scrambled content. The method includes checking fixing information for a program map table (PMT) packet of packets constituting the content, the fixing information being used to fix a transformed part of the content; extracting location information of a next PMT packet containing fixing data for fixing the transformed part of the content from the fixing information of the PMT packet; and fixing the transformed part of the content by using the fixing data in the next PMT packet indicated by the extracted location information. Accordingly, it is possible to easily detect a location of the content, which stores the fixing information, thereby expediting fixing of the transformed content.

公开(公告)号：US07426273B2

公开(公告)日：2008-09-16

申请号：US10809447

申请日：2004-03-26

申请人： Su-hyun Nam ,  Yun-sang Kim ,  Yang-lim Choi

发明人： Su-hyun Nam ,  Yun-sang Kim ,  Yang-lim Choi

IPC分类号： H04N7/167 ,  H04L9/00

CPC分类号： H04N21/4325 ,  H04N5/913 ,  H04N7/165 ,  H04N7/1675 ,  H04N21/4405 ,  H04N21/4408 ,  H04N21/4627 ,  H04N2005/91328 ,  H04N2005/91364

摘要： An AV stream processing system includes an AV stream input unit which receives an AV stream having an AV content information field including first copy control information, and an AV content field including second copy control information, a determination unit which extracts the first and second copy control information from the received AV stream and determines whether the first copy control information has been modified, and an AV stream decryption unit which processes the received AV stream according to predetermined criteria, when the first copy control information has been modified.

摘要翻译： AV流处理系统包括AV流输入单元，其接收具有包括第一复制控制信息的AV内容信息字段的AV流和包括第二复制控制信息的AV内容字段，提取第一和第二复制控制的确定单元 来自所接收的AV流的信息，并且确定第一复制控制信息是否已经被修改，以及AV流解密单元，当第一复制控制信息已被修改时，根据预定标准来处理接收到的AV流。

公开(公告)号：US20070156599A1

公开(公告)日：2007-07-05

申请号：US11522437

申请日：2006-09-18

申请人： Young-sun Yoon ,  Bong-seon Kim ,  Su-hyun Nam

发明人： Young-sun Yoon ,  Bong-seon Kim ,  Su-hyun Nam

IPC分类号： G06Q99/00

CPC分类号： H04N5/913 ,  G06F21/10 ,  H04N7/1675 ,  H04N21/4367 ,  H04N21/4627 ,  H04N21/8355 ,  H04N2005/91328

摘要： A method and apparatus for protecting digital content in a digital rights management (DRM) system are provided. The method includes: determining a usage rule for content included in a first content file based on usage constraint information included in the first content file; and generating a second content file complying with this usage rule. According to the method and apparatus, the security requirement of content creators and content providers can be satisfied and at the same time the requirement of content consumers for freer usage can be satisfied.

摘要翻译： 提供了一种用于保护数字版权管理（DRM）系统中的数字内容的方法和装置。 该方法包括：基于包括在第一内容文件中的使用约束信息，确定包含在第一内容文件中的内容的使用规则; 以及生成符合该使用规则的第二内容文件。 根据该方法和装置，可以满足内容创作者和内容提供者的安全要求，同时可以满足内容消费者对于更自由使用的要求。

公开(公告)号：US20060129827A1

公开(公告)日：2006-06-15

申请号：US11298874

申请日：2005-12-12

申请人： Chi-hurn Kim ,  Yong-kuk You ,  Su-hyun Nam

发明人： Chi-hurn Kim ,  Yong-kuk You ,  Su-hyun Nam

IPC分类号： H04L9/00

CPC分类号： H04L9/0891 ,  H04L9/3268 ,  H04L2209/60

摘要： A method of revoking a public key of a content provider is provided. In a system in which a certificate authority certifies the public key of the content provider and the content provider transmits predetermined content to a user device using the certified public key, the method includes the user device determining whether the predetermined content is revoked by comparing a time when a signature of the public key is generated with a time when the public key is revoked. Accordingly, it is possible to allow the user device to identify content that must not be revoked according to the time when the public key is revoked and a revocation list which includes an exception list, thereby preventing rightly obtained content from being revoked.

摘要翻译： 提供一种撤销内容提供商的公开密钥的方法。 在认证机构证明内容提供者的公开密钥并且内容提供者使用认证公钥向用户设备发送预定内容的系统中，该方法包括用户设备通过比较时间来确定预定内容是否被撤消 当公钥的签名在公钥被撤销的时间被生成时。 因此，可以允许用户设备根据公钥被撤销的时间和包括异常列表的撤销列表来识别不能被撤销的内容，从而防止正确获得的内容被撤销。

公开(公告)号：US08897310B2

公开(公告)日：2014-11-25

申请号：US12971247

申请日：2010-12-17

申请人： Bong-seon Kim ,  Young-sun Yoon ,  Su-hyun Nam

发明人： Bong-seon Kim ,  Young-sun Yoon ,  Su-hyun Nam

IPC分类号： H04L12/28 ,  H04L29/12 ,  H04L9/08 ,  H04L29/06 ,  H04L29/08

CPC分类号： H04L12/2803 ,  H04L9/083 ,  H04L29/06176 ,  H04L29/12113 ,  H04L61/1541 ,  H04L63/104 ,  H04L67/16 ,  H04L2209/60

摘要： A method and an apparatus for managing domains are provided. The method of managing one or more domains performed by a domain manager located in a home network includes determining whether to register a first device located in the home network to a domain, and providing data required to share content between the first device and a second device registered to the domain according to the determination. In the method and apparatus, content can be shared by connecting the devices with one another including a user, and the burden of content providers for management can be reduced.

摘要翻译： 提供了一种用于管理域的方法和装置。 管理位于家庭网络中的域管理员执行的一个或多个域的方法包括确定是否将位于家庭网络中的第一设备注册到域，以及提供在第一设备和第二设备之间共享内容所需的数据 根据确定注册到域名。 在该方法和装置中，可以通过将设备彼此连接（包括用户）来共享内容，并且可以减少用于管理的内容提供商的负担。