Apparatus for the discrimination of broadcast signal in high speed driving unit acceleration apparatus for storing automatic channel in high speed process for discriminThe action of broadcast signal in high speed process for the storage of automatic channel in high speed and process for switching channel in high speed

摘要

The invention channel containing a broadcast signal on the basis of the presence or absence of a simple synchronizing signal during the automatic channel storage in the that, in the conventional automatic channel storage apparatus according to a technology for storing and automatically detect the channel on which a broadcast signal exists in the television receiver there it becomes a determination to scan all the channels, so this was a relatively time-consuming defects that give rise to boredom to viewers.; Thus, with the present invention, the intermediate frequency signal for processing the intermediate frequency of the image signal outputted from the tuner output to the intermediate frequency automatic gain control signal (IF AGC) processor to solve this problem; Is configured to then output the tuning data to the tuner to determine the presence or absence of a broadcast signal on the basis of the intermediate frequency automatic gain control signal (IF AGC) includes a microcomputer to store the tuning data of the channel.