H
ELECTRICITY
H
ELECTRICITY
H04
ELECTRIC COMMUNICATION TECHNIQUE
H04
ELECTRIC COMMUNICATION TECHNIQUE
H04N
PICTORIAL COMMUNICATION, e.g. TELEVISION
H04N
PICTORIAL COMMUNICATION, e.g. TELEVISION
H04N21/00
Selective content distribution, e.g. interactive television or video on demand [VOD]
H04N21/00
Selective content distribution, e.g. interactive television or video on demand [VOD]
H04N21/20
Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
H04N21/20
Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
H04N21/25
Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
H04N21/25
Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
H04N21/258
Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
H04N21/258
Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
H04N21/25866
Management of end-user data
H04N21/25866
Management of end-user data