Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04N
PICTORIAL COMMUNICATION, e.g. TELEVISION
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21/00
Selective content distribution, e.g. interactive television or video on demand [VOD]
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H04N21/40
Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
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H04N21/41
Structure of client; Structure of client peripherals
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H04N21/4104
Peripherals receiving signals from specially adapted client devices
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H04N21/4126
The peripheral being portable, e.g. PDAs or mobile phones
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H04N21/41265
having a remote control device for bidirectional communication between the remote control device and client device
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