| 摘要 |
This invention relates to a device for automatic channel memory which comprises a first synchronization part for tuning channels displayed on a POP frame, a second synchronization part for tuning channels displayed on a main frame, a first intermediate frequency processing part for processing intermediate frequencies of the broadcasting signals of a synchronized channel by the first synchronization part, a second intermediate frequency processing part for processing intermediate frequencies of the broadcasting signals of the synchronized channel by the second synchronization part, a microcomputer for generating control signals in response to a key signal, an OSD processing part for generating required OSD signals in response to the control signals of the microcomputer, a switching part for selecting the signals from the first and the second intermediate frequency processing parts and external signals in response to the control signal of the microcomputer, a chroma part for processing the chrominance signal of a first signal selected by the switching part and of the OSD signals generated in the OSD processing part, and a POP processing part for processing a second signal selected by the switching part to be displayed onto the POP frame.
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