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PCE
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CPC Subgroup
H04N 21/637

Control signals issued by the client directed to the server or network components

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 > Control signaling between client, server and network components; Network processes for video distribution between server and clients , e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing (real-time session protocols H04L65/1101; distributed application using peer-to-peer [P2P] networks H04L67/104) > Control signals issued by the client directed to the server or network components

4 direct subcodes

Child Classifications

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  • H04N 21/6371 directed to network
  • H04N 21/6373 for rate control
  • H04N 21/6375 for requesting retransmission (ARQ protocols H04L1/18; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16)