| 摘要 |
<p>A first set of digital data (4) which are obtained by encoding low resolution digital video signals by a low resolution compression encoder (13) and a second set of digital data (5) which are obtained by encoding high resolution digital video signals by a high resolution compression encoder (16) are multiplexed with a packet including information on a program in which identification information for identifying both sets of digital data (4, 5) is described and transmitted. On the receiving (22) side, the first and second sets (4, 5) are identified and reproduced by corresponding decoders (28, 30). Thus, when the video data with different resolutions are multiplexed and transmitted, they can be correctly reproduced on the receiving side, so that the degree of freedom of the programming can be improved.</p> |
