An XSLT-Based Method and Apparatus for Implementing Dynamic Update of TeM Metadata

PURPOSE: A device for updating the TeM(Textual format for MPEG-7 description streams) metadata based on the XSLT(eXtensible Stylesheet Language Transformations) and a method for dynamically updating the TeM metadata by using the same are provided to execute a dynamic updating process of the TeM metadata by only the input/output control without needing a separate module by sharing the XSLT. CONSTITUTION: An XSL(eXtensible Stylesheet Language) writing tool(101) analyzes the decoder initialization information or an access unit transferred from a server, and converts it into an XSL document. An XSL queue(102) stores the XSL document by following order. An IDT(Initial Description Tree) storing tool(103) stores the IDT written by the XSL writing tool(101) as a certain format. An XSLT tool(104) updates the present IDT by receiving XSL document from the XSL queue(102) in the order.