Patent ID: 8117241
Filing Date: 2012-02-14
Classification: G11B

Abstract:
1. A method of reconstructing multimedia data, in which a multimedia scene comprises media objects based on a scene tree including nodes corresponding to the media objects, the method comprising: determining by a computer a null node to which first object information of a media object that is to be changed, from among a plurality of object information allocated to a plurality of nodes in a scene tree, in response to a request for an event change is allocated, the scene tree generated by linking the plurality of nodes, to one another; changing the first object information allocated to the null node; and reconstructing the multimedia data by executing an event according to the changed first object information, wherein an object-oriented multimedia decoding device reconstructs the multimedia data by decoding the object information regarding at least one media object allocated to each node in the scene tree using a scene description language, and reconstructing the multimedia scene, and wherein the scene tree comprises at least one of the null node and wherein the null node comprises a nullUrl which indicates an address location of where the media source for executing an event of an object indicated by the respective null node is recorded, a nullImage ID which indicates an address of video that is to be displayed if the media source of the object allocated to the null node has yet to be defined, an active flag which is an activation indicator indicating whether the event of the object information allocated to the null node is to be activated.