DIFF Subgroup
H04N 7/122 Full Title
Television systems (details H04N3/00, H04N5/00; methods or arrangements, for coding, decoding, compressing or decompressing digital video signals H04N19/00; selective content distribution H04N21/00) > Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal (H04N7/24 takes precedence)
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.