| 摘要 |
PROBLEM TO BE SOLVED: To simultaneously display a television video and the personal computer video of high resolution by processing the personal video without using a two- screen control part and using a different switching means. SOLUTION: A switch part 270 selects and outputs either main synchronizing signals Hm and Vm outputted from a main screen decoder 210 or personal computer synchronizing signals Hp and Vp outputted from a personal computer signal processing part 260 by a first switch signal I<2> C1 and a second switch signal I<2> C2 , which are outputted from a micro computer 240, and a third switch signal YS', and selects and outputs one decoding signal in main color decoding signals Um and Vm , two screen color decoding signals Udw and Vdw and personal computer decoding signals Yp , Up and Vp . Coding signals passing through the switch part 270 are converted into chrominance signals (R, G and B) and are outputted to an amplifier 108. |
