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PCE
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DIFF Subgroup
H04N 21/4104

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 ) > Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof > Structure of client; Structure of client peripherals

Of 9 combined children, 0 exist in both systems.

9 codes are CPC-only extensions.