Patent classifications
H
ELECTRICITY
Load children
H04
ELECTRIC COMMUNICATION TECHNIQUE
Load children
H04N
PICTORIAL COMMUNICATION, e.g. TELEVISION
Load children
21/00
Selective content distribution, e.g. interactive television or video on demand [VOD]
Load children Filter patents View analytics View as hierarchy
H04N21/40
Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
Load children Filter patents View analytics View as hierarchy
H04N21/488
Data services, e.g. news ticker
Load children Filter patents View analytics View as hierarchy
H04N21/4888
for displaying teletext characters
Filter patents View analytics View as hierarchy