Patent ID: 6584125
Filing Date: 2003-06-24
Classification: H04N

Abstract:
A coding apparatus comprising:audio signal coding means for coding an audio signal to output compressed audio data, local-decoding the compressed audio data to output local-decoded audio data and outputting time information which represent the decoding timing of the compressed audio data; video signal coding means for coding a video signal to output compressed video data, local-decoding the compressed video data to output local-decoded video data and outputting time information which represent the decoding timing of the compressed video data; interface means for accepting information on a composite scene; scene data coding means for coding scene data supplied from said interface means to output compressed scene data, local-decoding the compressed scene data to output local-decoded scene data and outputting time information which represent the decoding timing of the compressed scene data; composition means for composing a scene from the local-decoded audio data, the local-decoded video data and the local-decoded scene data to output a composed scene and outputting the time information which represent the composite timing of the composed scene; means for reproducing/displaying the composed scene supplied from said composition means; clock supply means for supplying at least one clock to said audio signal coding means, said video signal coding means, said scene data coding means and said composition means; and multiplexing means for creating a bit stream on the basis of the time information and compressed audio data supplied from said audio signal coding means, the time information and compressed video data supplied from said video signal coding means, the time information and compressed scene data supplied from said scene data coding means, the time information supplied from said composition means, and at least one clock value of at least one clock supplied from said clock supply means.