Tragbares Fernseh-(TV-)Telefon und Verfahren für die Steuerung seines Betriebs

摘要

A TV phone is provided, which includes a TV module; an MRFU for demodulating an incoming call received through a forward channel, and modulating and transmitting a signal on a reverse channel; a TV control section for supplying a tuning signal to the TV module; an MSP for establishing a phone or TV mode; and a display unit for displaying synchronized signals on an image viewing screen. In a TV mode, the TV phone receives an incoming call, stops the TV module; switches off and on output of an audio signal of the selected TV broadcasting channel; displays a character message on the TV viewing screen; or superimposes a graphic image over the image on the TV viewing screen.