Circuit for realizing single wire transmission of audio and video signals

Abstract

The invention relates to a circuit for realizing single wire transmission of audio and video signals, which comprises a transmitting end circuit and a receiving end circuit. The transmitting end circuit comprises a pre-emphasis and frequency modulation unit, a follower, and an impedance matching unit in communication connection with the pre-emphasis and frequency modulation unit and the first follower; the impedance matching unit is used for performing impedance matching processing on the output signals of the pre-emphasis and frequency modulation unit and a first follower, and transmitting the processing result to a single wire transmission cable to perform transmission; the receiving end circuit comprises a first processing unit, a second processing unit, a trapped wave and follow processing unit, and is used for transmitting the signals transmitted by the single wire transmission cable to the first processing unit and the second processing unit to perform filtration, demodulation and de-emphasis respectively, and transmitting the signals transmitted by the single wire transmission cable to a wave trap and a second follower to perform trapped wave and follow processing. According to the technical scheme of the invention, the operation is simple, and the problems that excessive connecting cables affect the attractiveness and occupy the space are avoided.

Description

technical field [0001] The invention relates to the field of home appliances, more specifically, to a circuit for realizing single-line transmission of audio and video signals. Background technique [0002] The current connection of household appliances usually uses multiple cables to transmit images and sounds, especially analog image video signals and sound baseband signals, which require three signal lines for transmission: one line for image transmission, and one line for left audio transmission. Channel, a line to the right channel. Although the digitalization of TV broadcasting is getting higher and higher, as a connection of household appliances, especially as a connection between a set-top box and a TV set, analog image and sound signals are still indispensable, so more cables are used. At present, this connection method of household appliances leads to the problems of complicated operation and too many connecting cables, which not only affects the appearance, but a...

AI Technical Summary

Problems solved by technology

At present, the connection method of household appliances leads to the problems of complicated operation and too many connecting cables, which not only affects the appearance, but also takes up more space

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