CPC Main Group
H04N 21/00 Selective content distribution, e.g. interactive television or video on demand [VOD] (real-time bi-directional transmission of motion video data H04N7/14 )
4 direct subcodes
Child Classifications
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- H04N 21/20 Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N 21/40 Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N 21/60 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
- H04N 21/80 Generation or processing of content or additional data by content creator independently of the distribution process; Content per se