APPARATUS FOR DISPLAYING SUB-TELEVISIONS ON PICTURE-IN-PICTURE BY MAIN-TELEVISION

摘要

PURPOSE: An apparatus for displaying sub-televisions on PIP(Picture-In-Picture) by a main television is provided to simultaneously display watching screens of each sub television to the main television as the PIP screens, when many televisions are connected to the main television and the sub television s. CONSTITUTION: An apparatus for displaying sub-televisions on PIP(Picture-In-Picture) by a main television comprises a watching channel transmitter, a switching unit, a PIP outputter. The watching channel transmitter watching channels of the sub-televisions to a PIP main television. The switching unit simultaneously switches all the watching channels of the sub-televisions in the PIP main television. The PIP outputter outputs the watching channels as PIP screens. The watching channel transmitter comprises a micom and a transmitter/receiver. A tuner circuit unit applies image signals of tuned channels to the micom. The transmitter/receiver transmits the applied image signals to the main television. The PIP outputter comprises a multi image mixer(115) and a micom(45). The multi image mixer mixes the image signals of all the sub-televisions inputted through a switching port(60) to multi image signals. The micom displays the mixed multi image signals as the PIP screens through a PIP signal processor(105).