Portable videophone unit

Presence detection for IP telephony

Process and system for increasing the display resolution of a po

Process and terminal for video telephony permitting acceptance,

Process for carrying out videoconferences with the...

Process for controlling the communication flow within an...

Process, apparatus and system for displaying multiple video stre

Processor for receiving data from a video signal

Program information broadcasting method program information disp

Program reminder system

Program time guide

Progressive still frame mode

Progressive still frame mode

Providing constant bit rate upstream data transport in a two way

Providing satellite images of videoconference participant...

Push to video service mode selection using device settings

Radio frequency sensed, switched reverse path tap

Radio-communication video terminal device

Real-time video/audio quality adjustment method

Receiving unit for two-way broadcasting including automatic disp