Moving picture synthesizing device

A moving picture synthesizing device for linking plural moving picture code strings, and obtaining a synthesized moving picture code string for describing a synthesized picture composed by including each moving picture described by the plural moving picture code strings, comprising:

• a picture coder for compressing and coding a video signal received by said picture coder in frame units, and providing said plural moving picture code strings for synthesis, such that a frame type occurrence pattern of each of said plural moving picture code strings is the same;
• a code string analyzer for analyzing header information of each of said plural moving picture code strings,
• a picture information generator for generating header information of synthesized moving picture code strings for describing said synthesized picture from output of said code string analyzer,
• a code string rewriting part for rewriting the display position information of said plural moving picture code strings into position information in said synthesized picture, and
• a synthesized picture output part for synthesizing the header information generated by the picture information generator and the display position information rewritten by the code string rewriting part, and outputting said synthesized moving picture code string.