Supplemental services, e.g. displaying phone caller identification or shopping application

Full Title

Selective content distribution, e.g. interactive television or video on demand [VOD] > Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB [set-top-box]; Operations thereof > End-user applications > Supplemental services, e.g. displaying phone caller identification or shopping application

Classification Context

Section:

ELECTRICITY

Class:

ELECTRIC COMMUNICATION TECHNIQUE

Subclass:

PICTORIAL COMMUNICATION, e.g. TELEVISION

Child Classifications

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• 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