CPC Subgroup
H04N 21/478 Supplemental services, e.g. displaying phone caller identification, shopping application
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 > End-user applications > Supplemental services, e.g. displaying phone caller identification, shopping application
7 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H04N 21/4782 Web browsing
- H04N 21/4784 receiving rewards
- H04N 21/4786 e-mailing
- H04N 21/4788 communicating with other users, e.g. chatting