摘要:
A technique for content management using group rights is described. The technique facilitates a flexible management for a group of content files mainly by effecting a change of group memberships for subsets of the group and a partial update of the content files. As one aspect, a content file manager (20) is provided to create content files associated with group rights. A device (21) is also provided to process such content files. One method aspect comprises assigning a plurality of content items to a new group whose identifier is associated with a new group rights object; determining if any of the content items has been previously distributed; and for each previously-distributed content item, creating an update content file including the group identifier of the new group and excluding the previously-distributed content item itself.
摘要:
The invention relates to techniques for controlling a delivery of streaming content in a point-to-multipoint ('PTM') enabled network (100). A method aspect of such a technique comprises the steps of sending one or more adjustment instructions for achieving a buffer overlap in content buffers (132 - 136) of a plurality of terminal devices (102 - 106) each receiving content via a point-to-point ('PTP') distribution (116 - 120), and initiating, following the sending of the adjustment instructions, a PTM distribution (142) for at least some of the plurality of terminal devices.
摘要:
Techniques for compressing and decompressing license information for Digital Rights Management are described. A method implementation of a technique of creating for a plurality of client devices or client device groups compressed license information comprises the steps of creating a template and a table. The table comprises at least one first license part common to licenses for the plurality of client devices or client device groups and one or more placeholders for one or more second license parts specific for a dedicated client device or client device group. The table comprises, for each client device or client device group and for a given placeholder, replacement information specific for that client device or client device group. The method further comprises sending the template and table for delivery as compressed license information to the client devices or client device groups.
摘要:
A technique for creating a resource in a cloud computing system is described. A method implementation of this technique comprises providing a plurality of predefined base resource descriptions, each base resource description defining a base resource in the cloud computing system and specifying one or more properties of the base resource, providing a plurality of predefined modifiers, each modifier being applicable to a resource in the cloud computing system to add, remove or change a property of the resource, wherein each modifier is associated with metrics information, and receiving a resource request indicating one or more desired properties for a target resource in the cloud computing system. In response to receipt of the resource request, a selection operation is performed to select a base resource description and one or more modifiers that are to be applied to the base resource corresponding to the selected base resource description to create the target resource in the cloud computing system, wherein the selection operation is based on the metrics information. In a next step, the selected base resource description is deployed to create the corresponding base resource in the cloud computing system, and application of the selected modifiers to the base resource in the cloud computing system is triggered to create the target resource.
摘要:
Techniques for compressing and decompressing license information for Digital Rights Management are described. A method implementation of a technique of creating for a plurality of client devices or client device groups compressed license information comprises the steps of creating a template and a table. The table comprises at least one first license part common to licenses for the plurality of client devices or client device groups and one or more placeholders for one or more second license parts specific for a dedicated client device or client device group. The table comprises, for each client device or client device group and for a given placeholder, replacement information specific for that client device or client device group. The method further comprises sending the template and table for delivery as compressed license information to the client devices or client device groups.
摘要:
A technique for controlling a play-out of a media data stream at a receiving device is provided. The media data stream comprises one or more programs, and each program comprises one or more program components. In a method implementation of the technique, a zone description is defined. The zone description is defined for a media zone for at least one program or at least one program component in the media stream and identifies the media zone for the at least one program or the at least one program component. In a next step, the zone description is associated to a program specific information data segment. The program specific information data segment is part of the media stream and comprises data specifying information at least regarding to the at least one program or at least one program component. The method also comprises transmitting the media data stream towards the receiving device.
摘要:
A method for control ling information object (102) usage in a network of information (100) wherein information objects (102) are identified by information object identities and locations of the information objects (102) are indicated by location pointing information, the method comprising receiving (5b) an encrypted information object (102), sending (7) to a resolution node (D200) a request for location pointing information of a key issuing node (D300), the request comprising an identity of the received information object (102), receiving (8) the location pointing information of the key issuing node (D300), sending (9) to the key issuing node (D300) a request for an access key (104) for decrypting the encrypted information object (102), the request comprising the identity of the received information object (102), receiving (11) the access key (104), and decrypting (12) the received encrypted information object (102) with the received access key (104).
摘要:
The invention refers to a method of supporting a sending user device (14) to enforcing a usage control of digital content embedded in a content object, CO, wherein a rights object, RO, associated to the CO is required for using the digital content of the CO at a receiving user device (16), the method comprising generating at the sending user device (14) a encryption information for decrypting the encrypted digital content and inserting the decryption information into the RO, and sending the RO to a rights management server (12) to be forwarded to the receiving user device (16). The invention further refers to a corresponding method of receiving at a rights management server (12) a rights object generation request to be forwarded to the receiving user device (16), and to a corresponding user device server and a corresponding server.
摘要:
The invention relates to techniques for controlling a delivery of streaming content in a point-to-multipoint ('PTM') enabled network (100). A method aspect of such a technique comprises the steps of sending one or more adjustment instructions for achieving a buffer overlap in content buffers (132 - 136) of a plurality of terminal devices (102 - 106) each receiving content via a point-to-point ('PTP') distribution (116 - 120), and initiating, following the sending of the adjustment instructions, a PTM distribution (142) for at least some of the plurality of terminal devices.
摘要:
A method for a client node (D100) to access an information object (102) located at a node (D500) of a secured network (120) via a network of information (100) wherein information objects (102) are identified by information object identities (IDObj, ID′Obj) and wherein nodes are identified by locators (LGW, LObj), wherein the following is performed at a routing node (D102): —receiving from the client node (D100) an information object identity related to the information object (102), —sending the information object identity to a resolving node (D400) of the network of information (100), the resolving node (D400) being capable of initiating a procedure for sending to the routing node (D102) a locator of a gateway node (D200) interfacing the network of information (100) and the secured network (120), —receiving the locator of the gateway node (D200), —sending a request for the information object (102) to the gateway node (D200) according to the locator, —receiving the requested information object (102) from the gateway node (D200), and —sending the information object (102) to the client node (D100).