| 摘要 |
<p>PURPOSE:To attain efficient block coding by applying coding as 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) and multiplexing the result. CONSTITUTION:Color difference signals CN, CW subjected to line sequential processing are fed to a demultiplex block processing circuit 23. In a coding circuit 24, 16 picture elements 17-32 and in a coding circuit 26, similarly 16 picture elements 1-16 are used as one coding block and the coding utilizing the correlation in each block is applied. The color difference signal subjected to block coding by the coding circuit is subjected to time base multiplex at a multiplex circuit 30 with a luminance signal subjected to block coding and the result is sent to a transmission line 34 connecting to a communication equipment or a magnetic recording and reproducing device via a terminal 32.</p> |
