| 摘要 |
<p>Disclosed is a channel selection method and an apparatus used in an area where multi TV broadcasting systems are applicable. The channel selection method comprises the steps of: a channel presetting process for presetting real broadcasting channels of each broadcasting system with unduplicatedly numbered virtual channels; a tuner control process for controlling the microcomputer to vary the virtual channels based on a channel selection instruction after performing the channel presetting process, and for controlling the tuner to select a high frequency signal of a frequency band corresponding to the real broadcasting channel of each broadcasting system in accordance with the varied virtual channel. The channel selection apparatus comprises key input means including a broadcasting system selection switch for selecting a use's desired broadcasting system and a key matrix circuit for inputting a user's desired channel information; memory means for storing the channel information chosen by the key input means; and a microcomputer which analyzes key data input from the key input means, designates a selection frequency of the tuner in accordance with the analyzed result, controls an operation mode and state of the video signal processor portion and instructs to store the channel selection information in the memory and to read out the stored information from the memory.</p> |
