公开(公告)号：US20100050272A1

公开(公告)日：2010-02-25

申请号：US12609725

申请日：2009-10-30

Applicant: Bijan Tadayon ,  Aram Nahidipour ,  Xin Wang ,  Michael C. Raley ,  Guillermo Lao ,  Thanh T. Ta

Inventor： Bijan Tadayon ,  Aram Nahidipour ,  Xin Wang ,  Michael C. Raley ,  Guillermo Lao ,  Thanh T. Ta

IPC: H04L29/06 ,  G06F17/00

CPC classification number: G06F21/10 ,  G06F21/62 ,  G06F2221/0746 ,  G06F2221/0768 ,  G06Q10/10

Abstract: A system and method for distribution of digital works in a tree-like structure of devices. A hierarchical right may include a first usage right governing a use for the digital work and a first delegation right governing distribution of the digital work to child nodes of the tree-like structure. A second usage right and/or a second delegation right may be generated based on the hierarchical right, the second usage right governing a use for the digital work and the second delegation right governing distribution of the digital work to child nodes of a first child node of the tree-like structure. The second usage right and/or the second delegation right may be assigned to a version of the digital work, and the second usage right and/or the second delegation right and the version of the digital work may be forwarded to the first child node.

Abstract translation: 数字作品在树状结构中分配的系统和方法。 分级权限可以包括管理数字作品的使用的第一使用权以及将数字作品分配给树状结构的子节点的第一授权权限。 第二使用权和/或第二授权权利可以基于分级权利，管理数字作品使用的第二使用权以及第二授权权利来控制数字作品对第一子节点的子节点的分配 的树状结构。 可以将第二使用权和/或第二授权权限分配给数字作品的版本，并且可以将第二使用权和/或第二授权权和数字作品的版本转发到第一子节点。

公开(公告)号：US06973445B2

公开(公告)日：2005-12-06

申请号：US09867754

申请日：2001-05-31

Applicant: Bijan Tadayon ,  Aram Nahidipour ,  Xin Wang ,  Michael C. Raley ,  Guillermo Lao ,  Thanh T. Ta

Inventor： Bijan Tadayon ,  Aram Nahidipour ,  Xin Wang ,  Michael C. Raley ,  Guillermo Lao ,  Thanh T. Ta

IPC: G06Q10/10 ,  G06Q20/38 ,  G06F17/60

CPC classification number: G06Q10/10 ,  G06Q20/382

Abstract: Flags are used to mark portions of content in a digital work to permit marking or demarcation of portions of the document. The demarcated portions can be handled in various ways. For example, different usage rights can be applied to demarcated portions, the demarcated portionis can be culled for use as a summary, or the like. The flags can be used to demarcate portions of content that has been downloaded to keep track of payment and download status and thus add flexibility to electronic distribution of content. A flag usage rights element can be attached to limit and control access to flags in a desired manner.

Abstract translation: 标记用于标记数字作品中的部分内容，以允许标记或划分文档的一部分。 划分的部分可以以各种方式处理。 例如，不同的使用权限可以应用于划分的部分，划分的部分可以被淘汰以用作总结等。 这些标志可用于划分已经下载的内容的部分，以跟踪付款和下载状态，从而增加了电子分发内容的灵活性。 可以附加标志使用权限元素，以期望的方式限制和控制对标志的访问。

公开(公告)号：US06859533B1

公开(公告)日：2005-02-22

申请号：US09469487

申请日：1999-12-21

Applicant: Xin Wang ,  Thanh T. Ta

Inventor： Xin Wang ,  Thanh T. Ta

IPC: H04L9/28

CPC classification number: H04L9/14 ,  H04L9/30 ,  H04L2209/76

Abstract: Methods for transferring among key holders in encoding and cryptographic systems the right to decode and decrypt messages in a way that does not explicitly reveal decoding and decrypting keys used and the original messages. Such methods are more secure and more efficient than typical re-encoding and re-encryption schemes, and are useful in developing such applications as document distribution and long-term file protection.

Abstract translation: 在编码和加密系统中的密钥持有者之间传送解密和解密消息的方式不以显式解释和解密所使用的密钥和原始消息的方式进行传送的方法。 这样的方法比典型的重新编码和重新加密方案更安全和更有效，并且在开发诸如文档分发和长期文件保护的应用中是有用的。

公开(公告)号：US07162633B2

公开(公告)日：2007-01-09

申请号：US11111853

申请日：2005-04-22

Applicant: Xin Wang ,  Aram Nahidipour ,  Michael C Raley ,  Guillermo Lao ,  Thanh T. Ta ,  Bijan Tadayon

Inventor： Xin Wang ,  Aram Nahidipour ,  Michael C Raley ,  Guillermo Lao ,  Thanh T. Ta ,  Bijan Tadayon

IPC: H04L9/00

CPC classification number: G06F21/10 ,  G06F21/62 ,  G06F2221/0746 ,  G06F2221/0768 ,  G06Q10/10

Abstract: A method, system and device for transferring usage rights associated with digital works, including generating, by a first party, first usage rights and hierarchical rights for a digital work, the first usage rights defining a use for the digital works, the first hierarchical rights specifying rights to derive usage rights or other hierarchical rights; presenting the first usage rights and hierarchical rights to a second party; receiving a selection from the second party indicating desired rights of the first usage rights and hierarchical rights; and granting the desired rights of the first usage rights and hierarchical rights to the second party.

Abstract translation: 一种用于传送与数字作品相关联的使用权限的方法，系统和设备，包括由第一方生成数字作品的第一使用权限和分层权限，定义数字作品使用的第一使用权限，第一层次权限 指定获得使用权或其他分层权限的权利; 向第二方呈现第一使用权和分级权限; 从所述第二方接收指示所述第一使用权和分级权限的所需权限的选择; 并向第二方授予所需权利的第一使用权和分级权限。

公开(公告)号：US07068787B1

公开(公告)日：2006-06-27

申请号：US09534756

申请日：2000-03-24

Applicant: Thanh T. Ta ,  Prasad Ram ,  Robert E. Schuler ,  Arun Ramanujapuram ,  Guillermo Lao ,  Xin Wang

Inventor： Thanh T. Ta ,  Prasad Ram ,  Robert E. Schuler ,  Arun Ramanujapuram ,  Guillermo Lao ,  Xin Wang

IPC: G06F7/167

CPC classification number: G06F21/10 ,  H04L9/3257 ,  H04L2209/56 ,  H04L2209/60

Abstract: A digital work and a system context (or resource information or system resource) are polarized enabling trusted rendering or replay of the digital work without depolarization of the digital content. The digital work includes digital content and resource information. Resource information may include information used by a replay application to format or process the digital content. The digital work and system context are polarized using a polarization scheme which relies on a polarization seed to initialize and customize the polarization. Different types of polarization seeds may be used, including a random number, a user's system's state or characteristic and a dynamic state-based polarization seed based on a dynamic system state or characteristic.

Abstract translation: 数字作品和系统上下文（或资源信息或系统资源）被极化，使数字作品的可信呈现或重放无需数字内容的去极化。 数字作品包括数字内容和资源信息。 资源信息可以包括由重放应用程序用于格式化或处理数字内容的信息。 数字工作和系统环境使用偏振方案进行极化，偏振方案依靠极化种子来初始化和定制偏振。 可以使用不同类型的偏振种子，包括随机数，用户系统的状态或特征以及基于动态系统状态或特性的基于动态状态的偏振种子。

公开(公告)号：US06976009B2

公开(公告)日：2005-12-13

申请号：US09867749

申请日：2001-05-31

Applicant: Bijan Tadayon ,  Aram Nahidipour ,  Xin Wang ,  Michael C. Raley ,  Guillermo Lao ,  Thanh T. Ta ,  Charles P. Gilliam

Inventor： Bijan Tadayon ,  Aram Nahidipour ,  Xin Wang ,  Michael C. Raley ,  Guillermo Lao ,  Thanh T. Ta ,  Charles P. Gilliam

IPC: G06Q30/06 ,  G06F17/60

CPC classification number: G06Q30/06 ,  Y10S707/99939

Abstract: Through the use of digital rights management, one or more conditional or consequential rights can be associated with a document. The conditional or consequential rights are activated by one or more trigger events that allow or restrict access to one or more documents by one or more users.

Abstract translation: 通过使用数字版权管理，可以将一个或多个有条件或后续权利与文档相关联。 有条件或后续权利由一个或多个触发事件激活，允许或限制一个或多个用户对一个或多个文档的访问。

公开(公告)号：US06763464B2

公开(公告)日：2004-07-13

申请号：US10196953

申请日：2002-07-18

Applicant: Xin Wang ,  Thanh T. Ta ,  Prasad Ram

Inventor： Xin Wang ,  Thanh T. Ta ,  Prasad Ram

IPC: G06F1216

CPC classification number: G06F21/6209 ,  G06F21/10 ,  G06F2221/0733 ,  G06F2221/0737 ,  G06F2221/0755 ,  G06F2221/2141 ,  G06F2221/2151

Abstract: A system and method for the secure distribution of electronic documents reduces the likelihood of unauthorized reproduction and redistribution by either authorized or unauthorized recipients. A self-protecting document (SPD) contains an encrypted document as well as a secure set of permissions and the software necessary to process the document; full decryption of the document is performed as late as possible so as to minimize the possibility of intercepting the document before it has been fully rendered to screen or to paper.

Abstract translation: 用于安全分发电子文档的系统和方法减少了授权或未经授权的收件人未经授权的再现和再分配的可能性。 自我保护文档（SPD）包含加密文档以及一组安全的权限和处理文档所必需的软件; 文件的完全解密尽可能地执行，以便最小化在将文档完全呈现到屏幕或纸张之前拦截文档的可能性。

公开(公告)号：US06754642B2

公开(公告)日：2004-06-22

申请号：US09867745

申请日：2001-05-31

Applicant: Bijan Tadayon ,  Aram Nahidipour ,  Xin Wang ,  Michael C. Raley ,  Guillermo Lao ,  Thanh T. Ta ,  Charles P. Gilliam

Inventor： Bijan Tadayon ,  Aram Nahidipour ,  Xin Wang ,  Michael C. Raley ,  Guillermo Lao ,  Thanh T. Ta ,  Charles P. Gilliam

IPC: G06F1760

CPC classification number: G06Q50/184 ,  G06Q20/123 ,  G06Q20/1235 ,  G07F17/16

Abstract: Usage rights to digital content are dynamically assigned. Various dynamic conditions are monitored and the usage rights are adjusted in a predetermined manner based on the status of dynamic conditions. The dynamic conditions include the time of day, the load on a server or network, or the like. The resolution of an image can be determined based on the conditions and the image can be rendered using subband decomposition techniques to permit variable resolution images to be constructed on the fly.

Abstract translation: 动态分配数字内容的使用权限。 监视各种动态条件，并且基于动态条件的状态以预定方式调整使用权。 动态条件包括时间，服务器或网络上的负载等。 可以基于条件确定图像的分辨率，并且可以使用子带分解技术来呈现图像，以允许在飞行中构建可变分辨率图像。

公开(公告)号：US07222104B2

公开(公告)日：2007-05-22

申请号：US09867746

申请日：2001-05-31

Applicant: Bijan Tadayon ,  Aram Nahidipour ,  Xin Wang ,  Michael C Raley ,  Guillermo Lao ,  Thanh T Ta ,  Charles P Gilliam

Inventor： Bijan Tadayon ,  Aram Nahidipour ,  Xin Wang ,  Michael C Raley ,  Guillermo Lao ,  Thanh T Ta ,  Charles P Gilliam

IPC: G06Q99/00 ,  H04K1/00 ,  H04L9/00

CPC classification number: G06F21/44 ,  G06F2221/2129 ,  G06Q10/10 ,  G06Q50/188 ,  Y10S707/99939

Abstract: A method and apparatus for facilitating transfer of usage rights for digital content. The system comprises digital content, a usage rights module containing usage rights information associated with the content for a user, a transfer permission module containing transfer permission information for the content, a current user identification module containing identity information indicating the identity of the user, and means for manipulating the current user identification module to change the identity information. The content can be transferred form one user to another and the current user identification module can be manipulated to reflect the current user and to permit the current user to have usage rights in the document.

Abstract translation: 一种促进数字内容的使用权利转移的方法和装置。 该系统包括数字内容，包含与用户的内容相关联的使用权信息的使用权模块，包含用于内容的传送许可信息的传送许可模块，包含指示用户身份的身份信息的当前用户识别模块，以及 用于操纵当前用户识别模块以改变身份信息的装置。 内容可以从一个用户转移到另一个用户，并且可以操纵当前用户识别模块以反映当前用户并允许当前用户在该文档中具有使用权限。

公开(公告)号：US06519700B1

公开(公告)日：2003-02-11

申请号：US09178529

申请日：1998-10-23

Applicant: Prasad Ram ,  Thanh T. Ta ,  Xin Wang

Inventor： Prasad Ram ,  Thanh T. Ta ,  Xin Wang

IPC: C06F1216

CPC classification number: G06F21/6209 ,  G06F21/10 ,  G06F2221/0733 ,  G06F2221/0737 ,  G06F2221/0755 ,  G06F2221/2141 ,  G06F2221/2151

Abstract: A system and method for the secure distribution of electronic documents reduces the likelihood of unauthorized reproduction and redistribution by either authorized or unauthorized recipients. A self-protecting document (SPD) contains an encrypted document as well as a secure set of permissions and the software necessary to process the document; full decryption of the document is performed as late as possible so as to minimize the possibility of intercepting the document before it has been fully rendered to screen or to paper.