Vehicular image and sound expansion apparatus with study function and Vehicular image and sound system using same and study method
A technology for expanding devices and learning functions, applied in signal transmission systems, non-electrical signal transmission systems, instruments, etc., can solve problems such as user confusion, loss of attention, and endangering driving safety
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[0012] Please refer to FIG. 1 , which is a block diagram of a preferred embodiment of a car audio-visual system according to the present invention. As shown in FIG. 1 , the car audio-visual system 1 includes: a host 10 , an expansion device 20 , a playback device 30 , and a speaker 40 .
[0013] Main frame 10 usually has audio processing circuits such as AM / FM tuner (AM / FM Tuner), tape player (cassette player), amplifier and crossover, except that it can process the audio signal of its own tuner or tape player, it can also It can receive and process the audio signal of the signal line 70 of the expansion device 20 , or receive and process the audio signal of the signal line 69 of the playback device 30 , and then output the sound through the speaker 40 . If the host 10 also has a built-in image display (video display), the host 10 has a video processing circuit for receiving and processing the video signal of the signal line 70 of the expansion device 20, or receiving and proc...
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