| 摘要 |
<p>A highly efficient coding apparatus for coding digital video signal according to a first standard having a resolution substantially N times higher than that of a second standard, comprising, averaging circuit for averaging the digital video data N picture elements and for generating the averaged data, block encoding circuit for encoding the averaged data in a block format allowing data compression, and subtracting circuit for generating the subtracted data representing the difference between a plurality of video data of the N picture elements and the averaged data, encoding circuit for encoding the subtracted data to generate an additional data, and transmitting circuit for transmitting the output of the block encoding circuit and the additional data in a predetermined order. <IMAGE></p> |
