摘要:
A Baseline DVB-CPCM is presented in this proposal to provide a secure and interoperable content delivery and transferring apparatus. The proposed Baseline DVB-CPCM is a unit to be implemented in a compliant CPCM device, and it consists of five major modules to be used for end-to end solution and content transferring between devices. These modules are CPCM Manager, Tools Box, Rights Management Module, Message Router, and CAS-CPCM Converter.
摘要:
A method of transferring information specifying an IPMP tool utilized for processing a content protected by IPMP to an IPMP terminal specifies and uses XML schema for terminal platform specification, parametric description, and parametric aggregation which is to be used in MPEG-n IPMP system. For example, according to the method, based on a predetermined terminal platform XML schema and language to describe a terminal platform, terminal platform specification is created based on the terminal platform schema and language to specify on what platform or terminal the IPMP tool can run. The terminal platform specification is attached to metadata associated with the tool. The terminal platform specification and the IPMP tool are transferred to an IPMP terminal which is implemented with a terminal platform parser based on the terminal platform schema and language.
摘要:
MPEG-n IPMP system with a wide interoperability is provided. For this purpose, the IPMP_Data_BaseClass is defined, several IPMP data extending from this base class are also defined. IPMP data is the data that describes IPMP information, it includes: IPMP_OpaqueData; IPMP_SelectiveDecryptionMessage; IPMP_AudioWatermarkingInit; IPMP_VideoWatermarkingInit; and IPMP_KeyData. Places where IPMP data extending from IPMP_Data_BaseClass are also specified. With the above work, a IPMP tool from Vendor A will be able to understand the IPMP data constructed by Content Author B, hence the inter-operability will be achieved, that is, the same protected content will be able to be consumed on different vendor's MPEG-n IPMP terminals.
摘要:
A method for delivering content includes processing the content to protect copyright of the content, deciding use conditions of the content, and describing a first digital item or a second digital item in which the first digital item is defined in a form of Digital Item Declaration, the first digital item containing the content or an address of the content and being able to contain other digital items defined therein. In the describing step, a first description regarding processing the content to protect the copyright of the content and a second description regarding the use conditions are both described in the first digital item.
摘要:
The present invention relates to content and IPMP tool transfer among distributed IPMP devices. A set of messages is defined for distributed IPMP devices. These messages include content transfer message, IPMP tool transfer messages, as well device ID broadcasting messages. Using these messages, distributed devices can use a standard set of messages to establish a network, and exchange content protected by IPMP in an inter-operable way. It is also related to carriage of rights in MPEG system, especially in MPEG-4 system. Rights ES (Elementary Stream) is defined in MPEG-4 system, to carry rights information. The Rights ES is also attached with information including whether the rights carried in the ES is proprietary or not, and/or what should be the rights management tool to handle this Rights ES. With that, terminal can be built in an inter-operable way, and retrieve rights from a standardized position.
摘要:
The present invention relates to digital item adaptation, especially MPEG-21 Digital Item Adaptation (DIA) which requires negotiation between different MPEG-21 peers. Advertisements metadata is defined to hold Digital Item Adaptation descriptions, such as Usage Environment description, BSDL description, XDI description, as well as MPEG-7 Media description in its descriptions element. With that, a generic DIA negotiation mechanism (protocol) using some XML schema based messages for DIA description transmission/exchange/update is defined. A generic and higher-level DIA Negotiation messages is also defined, which is independent from any network protocol, so that descriptions for Digital Item Adaptation can be directly included in the defined messages for registering, transmitting and updating to fulfil DIA description negotiation in those applications that is involved in digital item adaptation.
摘要:
This invention describes a way to represent IPMP scheme description for Digital Item to be used for MPEG-21 IPMP system. It aims to link IPMP with DID model of MPEG-21 framework. It also provides an interoperable and secure way for MPEG-21 IPMP system implementers to build the whole IPMP for Digital Item distribution and protection under MPEG-21 architecture. This invention also designs appropriate places to put the IPMP information including the important IPMP Tool related control information as well as other tool information. The information shall be put in DID Descriptor Statement at the beginning of Container, or tightly bound to the Resource element.
摘要:
This streaming system includes a server and a client which transmit and receive a media stream having a layer structure including at least a session layer through a network. The server includes means for incorporating management information for managing the media stream in an SDP of the session layer of the media stream, and means for transmitting the SDP in which the management information is incorporated to the client in the session layer of the media stream. The client includes means for receiving the SDP in which the management information is incorporated from the server, means for extracting the management information from the received SDP, and means for managing the media stream on the basis of the extracted management information.
摘要:
An apparatus of a flexible and common MPEG-2 IPMP system (Intellectual Property Management and Protection) is invented to provide flexibility and interoperability by introducing a IPMP Control Information which includes IPMP Tool List and an optional Tool Container. The IPMP Control Information is put in PSI in MPEG-2 transport stream, and a special PES packet in MPEG-2 program stream. IPMP Stream is defined to carry IPMP information that is to be sent to each individual IPMP tool instance. The concept of Tool Manager, Message Router from MPEG-4 IPMP extension is mapped into MPEG-2 terminal to form MPEG-2 IPMP framework together with introduced IPMP Control Information and IPMP Stream. As a result of this invention, the same protected MPEG-2 content is able to play back by different types of MPEG-2 IPMP terminals, and the same MPEG-2 content can be protected by using different vendors' IPMP system.
摘要:
A Baseline DVB-CPCM is presented in this proposal to provide a secure and interoperable content delivery and transferring apparatus. The proposed Baseline DVB-CPCM is a unit to be implemented in a compliant CPCM device, and it consists of five major modules to be used for end-to end solution and content transferring between devices. These modules are CPCM Manager, Tools Box, Rights Management Module, Message Router, and CAS-CPCM Converter.