Abstract:
Digital rights managements (110) allows one or more of usage rights (140) and delegation rights (120) to be associated with a document (100). Through the use of the usage rights (140) and the delegation rights (120), a hierarchy of rights associated with a document (100) is created that provides a tree-type structure of rights extending from the content owner down through one or more users.
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:
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.
Abstract:
A system and method for creating 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. Rights expression information indicating a manner of use of an item is specified. A modulated signal based representation of the rights expression information is then generated. The modulated signal based representation is configured to be interpreted by an interpreter of a system for controlling use of the item to permit enforcement of the rights expression.
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.