Digital item adaptation negotiation mechanism
First Claim
1. A method of defining negotiation mechanism for digital Item adaptation (DIA), comprising:
- creating MPEG-21 DIA description including at least one of Usage Environment, XDI (Context Digital Item), and BSDL (Bitstream Syntax Description Language) description based on standardized DIA description schema for peers which are MPEG-21 compatible terminals;
placing the DIA description in the appropriate place to be used for exchanging, transmitting, or updating in negotiation protocol;
specifying and defining some generic Protocol Message Schemas to implement functions of generic protocols; and
exchanging, updating or transmitting the DIA description using the defined protocols.
1 Assignment
0 Petitions
Accused Products
Abstract
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.
-
Citations
20 Claims
-
1. A method of defining negotiation mechanism for digital Item adaptation (DIA), comprising:
-
creating MPEG-21 DIA description including at least one of Usage Environment, XDI (Context Digital Item), and BSDL (Bitstream Syntax Description Language) description based on standardized DIA description schema for peers which are MPEG-21 compatible terminals;
placing the DIA description in the appropriate place to be used for exchanging, transmitting, or updating in negotiation protocol;
specifying and defining some generic Protocol Message Schemas to implement functions of generic protocols; and
exchanging, updating or transmitting the DIA description using the defined protocols. - View Dependent Claims (2, 3, 4, 5, 6, 13, 14, 15, 16)
-
-
7. A method of defining negotiation mechanism for Digital Item Adaptation (DIA), comprising:
-
building a connection between peers that need DIA negotiation based on generic high-level peer-to-peer protocols and real network protocols, the peers being MPEG-21 compatible terminals;
creating MPEG-21 DIA description including at least one of Usage Environment, XDI (Context Digital Item), and BSDL (Bitstream Syntax Description Language) description based on standardized DIA description schema for peers;
specifying and defining generic and essential DIA negotiation messages schema which includes the DIA description and DIA description element, for implementing the negotiation mechanism; and
registering, transmitting or updating the DIA description with the DIA negotiation messages between the peers that need DIA negotiation. - View Dependent Claims (8, 9, 10, 11, 12, 17, 18, 19, 20)
-
Specification