Patent ID: 7119850

Claim:
A sub picture control apparatus for a television receiver, comprising: a sub picture tuner for selecting a broadcasting signal for constructing a sub picture having a focus region of a whole picture, the whole picture corresponding to a program of a broadcasting channel carrying the selected broadcasting signal; a luminance/chrominance (Y/C) separating section for separating a chrominance signal and a luminance signal from the selected broadcasting signal, to output a video signal of the whole picture according to the separated Y/C signal; a region information extracting section for extracting region information included in the selected broadcasting signal, the extracted region information identifying the focus region of the whole picture; a region extracting section/scaler for extracting a video signal of the focus region from the video signal of the whole picture and for performing a picture size scaling with respect to the extracted video signal of the focus region; and a control section for controlling the video signal extraction and the scaling by the region extracting section/scaler according to the extracted region information, by setting a display position and a display size of the sub picture.