公开(公告)号：EP1573633A1

公开(公告)日：2005-09-14

申请号：EP03819121.9

申请日：2003-12-10

申请人： ContentGuard Holdings, Inc.

发明人： GUILLERMO, Lao ,  NAHIDIPOUR, Aram ,  RALEY, Michael ,  TA, Thanh ,  TADAYON, Bijan

IPC分类号： G06F17/60

CPC分类号： G06Q10/10 ,  G06F21/10 ,  G06Q30/06 ,  Y10S707/99939

摘要： A rights management system including one or more consequential rights associated with digital content, and specifying a manner of use of the digital content, a right management module that enforces the rights permitting use of the digital content in accordance with the rights upon occurrence of a consequential event. The consequential event is based on another usage right. In one embodiment, the consequential event is the exercise, expiration, or possession of another usage right.

公开(公告)号：EP1941446A2

公开(公告)日：2008-07-09

申请号：EP06816318.7

申请日：2006-10-04

申请人： ContentGuard Holdings, Inc.

发明人： TA, Thanh ,  NGUYEN, Mai ,  CHEN, Eddie, J. ,  WANG, Xin ,  DEMARTINI, Thomas

IPC分类号： G06Q99/00

CPC分类号： G06F21/105 ,  G06Q30/06

摘要： The invention relates to method for deriving a sub-right from a right, the right comprising a plurality of components, each of which specifies an aspect of the right. A component may be, for example, a principal, an action, a resource, and a condition. The invention also relates to a method for integrating a first right with a second right. Furthermore, the invention relates to a method of sharing rights by deriving a sub-right from a right, allowing use of the sub-right, and integrating the sub-right with the right.

公开(公告)号：EP1847052A2

公开(公告)日：2007-10-24

申请号：EP06717522.4

申请日：2006-01-09

申请人： ContentGuard Holdings, Inc.

发明人： RALEY, Michael ,  VALENZUELA, Edgardo ,  NAHIDIPOUR, Aram ,  WANG, Xin ,  LAO, Guillermo ,  TA, Thanh ,  TADAYON, Bijan

IPC分类号： H04K1/00

CPC分类号： G06Q50/184 ,  G06F21/10 ,  G06F21/60 ,  G06F2221/2141 ,  G06F2221/2153 ,  G06Q10/10 ,  G06Q20/1235 ,  G07F17/16 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/0071 ,  H04L63/10 ,  H04L67/34 ,  H04L2463/101 ,  H04L2463/102 ,  H04N21/2541 ,  H04N21/4627 ,  H04N21/8355 ,  H04N21/83555

摘要： Usage rights for a digital work are established prior to creation of the corresponding content. The rights can be associated with the content after the content is created. A content creation, such as a video recorder or a still camera, device can store labels of the rights and can associate usage rights with content in real time as the content is created.

公开(公告)号：EP1884052A1

公开(公告)日：2008-02-06

申请号：EP05741715.6

申请日：2005-04-29

申请人： ContentGuard Holdings, Inc.

发明人： TA, Thanh ,  WANG, Xin ,  TIEU, Vincent ,  FUNG, Joseph Z. Y. ,  TRAN, Duc ,  VENKATRAMAN, Venugopal ,  ROMERO-LOBO, Jose ,  CHEN, Eddie J. ,  GILLIAM, Charles P.

IPC分类号： H04K1/00 ,  G06F15/177

CPC分类号： H04L63/20 ,  G06F21/10 ,  G06F21/577 ,  G06F2221/2115 ,  G06F2221/2149 ,  H04L9/3247 ,  H04L63/12 ,  H04L67/303 ,  H04L2209/60

摘要： A method and system for integrity certification and verification in a computer environment based on characteristics and behaviors of one or more applications, systems or system components as compared with a profile of characteristics and behaviors, including determining a behavior integrity profile (BIP) specifying characteristics and behaviors of one or more applications, systems or system components; determining based on the BIP whether or not characteristics and behaviors of one or more applications, systems or system components are compliant with characteristics and behaviors defined in a behavior integrity profile specification; and determining access rights to the one or more applications, systems or system components based on the step of determining the compliance.

公开(公告)号：EP1301863B1

公开(公告)日：2006-05-03

申请号：EP01964447.5

申请日：2001-08-28

申请人： ContentGuard Holdings, Inc.

发明人： TA, Thanh ,  WANG, Xin

IPC分类号： G06F12/14 ,  G06F12/16 ,  H04L9/00 ,  H04L29/06

CPC分类号： H04L63/0823 ,  G06F21/10 ,  H04L63/104

摘要： A provider (300), provides protected content to a user, for consumption within a trusted environment. By providing integrity certification and verification services, the authenticity of the contents can be verified. The content provider (300) forwards to the user (400) a protected version (10) of the digital content which includes a license agreement and an integrity profile identification, which profile includes the applications and system components to be used in conjunction with the protected content. The content provider initiates and forwards a request (20) for the integrity profile to a device (200), which if an integrity profile does not already exist for the requested applications and/or systems components, queries a provider (500), who has supplied the system components to the user. The provider returns to the device authentication information (40) which is about the particular applications or systems components, and which allows a comparison between an application and/or system component on a user's system, and the original application or system component as distributed by the provider.

公开(公告)号：EP1483715A1

公开(公告)日：2004-12-08

申请号：EP03716567.7

申请日：2003-03-14

申请人： ContentGuard Holdings, Inc.

发明人： TA, Thanh ,  LAO, Guillermo ,  WANG, Xin ,  RALEY, Michael, C. ,  GILLIAM, Charles, P. ,  HAM, Manuel ,  TADAYON, Bijan

IPC分类号： G06F17/60

CPC分类号： G06Q20/1235 ,  G06F21/10 ,  G06F2221/0766 ,  G06Q20/382 ,  G06Q40/00 ,  H04N21/2541 ,  H04N21/835 ,  H04N21/83555

摘要： A system and method for processing a rights expression for association with an item for use in a system for controlling use of the item in accordance with the rights expression. A rights expression is specified in a conventional manner in an original format. An intermediate format of the rights expression is generated based on at least one of syntax information and semantics information associated with the original format. The rights expression specifies a manner of use of said item for enforcement on a device. The intermediate format can be converted to a device specific format or a simplified format for resource constrained devices to permit rights enforcement on various devices.

公开(公告)号：EP1485833A2

公开(公告)日：2004-12-15

申请号：EP02786739.9

申请日：2002-11-19

申请人： ContentGuard Holdings, Inc.

发明人： FUNG, Joseph, Z. ,  CHANCELLOR, Robert ,  DeMARTINI, Thomas ,  NGUYEN, Mai ,  TA, Thanh ,  TIEU , Vincent H. ,  TRAN, Duc ,  VALENZUELA, Edgardo

IPC分类号： G06F17/60

CPC分类号： G06Q10/10 ,  H04N21/83555

摘要： System and methods for manipulating rights expressions for use in connection with a rights management system include one or more tokenized templates. Each tokenized template includes one or more rights expression language statements and one or more tokens associated with at least one of the rights expression language statements. Further, the tokens can be place holders for data items or rights expression elements. The system further includes a license template module that creates the tokenized templates, and a license instance creation module that replaces at least one of the tokens in one or more selected license templates with one or more of the data items or rights expression elements to generate a license instance. Additionally, the system includes a license instance analysis module having sub-modules for validating and interpreting license instances, and a data parsing module for extracting data from created license instances.

公开(公告)号：EP1366403A2

公开(公告)日：2003-12-03

申请号：EP02707466.5

申请日：2002-01-16

申请人： ContentGuard Holdings, Inc.

发明人： RALEY, Michael ,  CHEN, Daniel ,  WU, Hsi-Cheng ,  TA, Thanh

IPC分类号： G06C1/00

CPC分类号： H04L63/10 ,  G06F21/10 ,  G06F2221/0737 ,  G06F2221/2135 ,  H04L63/12 ,  H04L63/20 ,  H04L67/02 ,  H04L67/06 ,  H04L67/325 ,  H04L67/327 ,  H04L67/34 ,  H04L69/329 ,  H04L2463/101

摘要： A system and method for the secure distribution (120) and consumption of electronic documents using a standard rendering engine. A server (140) stores at least one of the documents in computer readable form. A client having a standard application program including a rendering engine capable of rendering unencrypted documents for viewing is operated by a user (130). The client (130) and the server (140) are coupled by a communications network. A security module controls requested for at least one of the documents on the server (140) from the client (130) and delivers the document and a set of rights associated with the document to the client (130).

公开(公告)号：EP1340134A2

公开(公告)日：2003-09-03

申请号：EP02734667.5

申请日：2002-06-05

申请人： ContentGuard Holdings, Inc.

发明人： LAO, Guillermo ,  WANG, Xin ,  TA, Thanh ,  FUNG, Joseph, Z.

IPC分类号： G06F1/00

CPC分类号： G06F21/10 ,  G06Q20/401

摘要： Cryptographic keys are used to protect content (42) in a digital rights management system. Activation servers (20) cooperate with license servers (50) to issue licences (52) to user devices (60) associated with differing trust zones.

公开(公告)号：EP1301863A2

公开(公告)日：2003-04-16

申请号：EP01964447.5

申请日：2001-08-28

申请人： ContentGuard Holdings, Inc.

发明人： TA, Thanh ,  WANG, Xin

IPC分类号： G06F12/14 ,  G06F12/16 ,  H04L9/00

CPC分类号： H04L63/0823 ,  G06F21/10 ,  H04L63/104

摘要： A provider (300), provides protected content to a user, for consumption within a trusted environment. By providing integrity certification and verification services, the authenticity of the contents can be verified. The content provider (300) forwards to the user (400) a protected version (10) of the digital content which includes a license agreement and an integrity profile identification, which profile includes the applications and system components to be used in conjunction with the protected content. The content provider initiates and forwards a request (20) for the integrity profile to a device (200), which if an integrity profile does not already exist for the requested applications and/or systems components, queries a provider (500), who has supplied the system components to the user. The provider returns to the device authentication information (40) which is about the particular applications or systems components, and which allows a comparison between an application and/or system component on a user's system, and the original application or system component as distributed by the provider.