| 摘要 |
<p>PURPOSE:To attain information compression with very high compression rate without deteriorating picture quality by applying coding to two kinds of digital color difference signals subjected to line sequential processing for each block of (nXm) samples (n, m are integers being 2 or over) bridged over the lines with different color difference signals arranged thereupon. CONSTITUTION:A coding circuit 12 applies block coding to data read out of a block processing circuit 10 and reduce information quantity (bit number per picture element) and outputted. The color difference signal subjected to line sequential processing is fed to a block processing circuit 23 and arranged for each block similarly to the case with the block processing circuit and the result is fed to a code processing circuit 25. The line sequential color difference signal subjected to block coding by the circuit 25 is subjected to time base multiplex with a luminance signal subjected to block coding by a multiplex circuit 30 and the result is sent to a transmission line such as communication equipment, magnetic recording and reproducing device via a terminal 32.</p> |
