| 摘要 |
A channel selection method for simultaneously displaying video data of a plurality of virtual channels of one channel in the form of still images, in SD format broadcasting according to an ATV standard, and displaying video data of one of the virtual channels which corresponds to a cursor position in the form of a moving image, allowing easy selection of a desired channel from the displayed screen. A channel selection apparatus includes elements of a typical ATV system, i.e., an antenna, a tuner, an IF module, a channel decoder and a TS decoder. Also, the apparatus includes a memory to store video data separated from the broadcasting signals of four virtual channels received by the TS decoder, a video decoder to decode the stored video data and restore the decoded video data, a format converter to convert the format of the restored video data of each of the virtual channels to a screen size divided into four equal portions, a display for simultaneously display the video data of each of the format-converted channel broadcastings on one screen, and a host processor for controlling the operation of the elements to simultaneously display the broadcasting signals of the four virtual channels and full-screen display the channel selected using an input unit from the simultaneously displayed broadcasting signals of the four subscreens.
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