| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a system for synchronously providing and displaying main and sub moving images from a server to a client, which reproduces the sub image from a time point corresponding to a playback start point of the main image even when a playback start is instructed in the middle of the main image. <P>SOLUTION: When receiving a start instruction showing a playback start time t on a time axis of main moving image data 112 from a client 200, a reconstructing part 122 specifies sub material data 114 to be presented at the time t from synchronization information 117, and calculates a playback start time st on a time axis of the sub material data 114 by subtracting a start time of the sub material data 114 shown in the synchronization information 117 from the time t if the specified sub material data 114 is a moving image, and a reconstructed moving image obtained by arranging the main moving image data 112 reproduced from the time t and the sub material data 114 reproduced from the time st in a prescribed layout is generated and provided to the client 200. <P>COPYRIGHT: (C)2008,JPO&INPIT |
