Television receiver with teletext receiving function and a method for superimposing a teletext picture on a television picture
作者： Morio Ando
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摘要: Teletext data stored in a video RAM is developed work RAM. A CPU selectively deletes picture elements from the teletext data, to thereby compress into adapted for display an auxiliary screen which e.g., 1/4 of CRT. The compressed written controller supplies synthesizing circuit, together with appropriate switching signal representing timing between and TV broadcast signal. In accordance signal, circuit output circuit. Accordingly, size displayed on CRT as image, while being superimposed picture.
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