| 摘要 |
<p>A video format conversion apparatus for a high definition television comprising a decoding circuit (1) for decoding a transmitted, encoded signal into a video signal, a frame rate conversion circuit (2) for converting a frame rate of the video signal from the decoding circuit (1) into 30Hz, a decimation circuit (3) for converting the number of vertical and horizontal scanning lines of a selected one of the video signal from the decoding circuit (1) and an output video signal from the frame rate conversion circuit (2), an interlaced scanning format conversion/selection circuit (4) for converting a scanning format of a selected one of the video signals from the decoding circuit (1) and the frame rate conversion circuit (2) and an output video signal from the decimation circuit (3) into an interlaced scanning format and outputting a selected one of the converted video signal of the interlaced scanning format and the video signal from the decoding circuit (1), and a selection control controller (5) for controlling the frame rate conversion circuit (2), the decimation circuit (3) and the interlaced scanning format conversion/selection circuit (4) in response to video format information from the decoding circuit (1).</p> |
