DIFF Subgroup
H04N 21/6106 Full Title
Selective content distribution, e.g. interactive television or video on demand [VOD] (real-time bi-directional transmission of motion video data H04N7/14 ) > Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client ; Communication details between server and client > Network physical structure; Signal processing (H04B takes precedence)
Of 6 combined children, 0 exist in both systems.
6 codes are CPC-only extensions.