To make it possible to reduce the number of components for communication using a plurality of channels.SOLUTION: A signal transmission circuit comprises: a common frequency filter for filtering a signal around a common frequency being an anti-resonant frequency; a first frequency filter for filtering a signal around a first frequency being an anti-resonant frequency; a second frequency filter for filtering a signal around a second frequency being an anti-resonant frequency; a first route connected to first signal wiring for transmitting a digital signal; and a second route connected to second signal wiring for transmitting a digital signal. The first route includes: the common frequency filter connected to a power supply circuit; and the first frequency filter that is disposed between the common frequency filter and the first signal wiring and is connected in series with the common frequency filter. The second route includes: the common frequency filter; and the second frequency filter that is disposed between the common frequency filter and the second signal wiring and is connected in series with the common frequency filter. Both of the first frequency and the second frequency are equal to or higher than the common frequency.SELECTED DRAWING: Figure 3

    【課題】複数チャンネルの通信において部品点数を削減できる。【解決手段】信号伝送回路は、反共振周波数である共通周波数を中心に信号をフィルタする共通周波数フィルタと、反共振周波数である第1周波数を中心に信号をフィルタする第1周波数フィルタと、反共振周波数である第2周波数を中心に信号をフィルタする第2周波数フィルタと、デジタル信号を伝送する第1信号配線に接続された第1経路と、デジタル信号を伝送する第2信号配線に接続された第2経路と、を備える。第1経路は、電源回路に接続された共通周波数フィルタ、および共通周波数フィルタと第1信号配線との間に配置され共通周波数フィルタと直列に接続された第1周波数フィルタを有し、第2経路は、共通周波数フィルタ、および共通周波数フィルタと第2信号配線との間に配置され共通周波数フィルタと直列に接続された第2周波数フィルタを有し、第1周波数および第2周波数のいずれも、共通周波数以上である。【選択図】図3


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    Title :

    SIGNAL TRANSMISSION CIRCUIT AND SIGNAL TRANSMISSION SYSTEM


    Additional title:

    信号伝送回路、信号伝送システム


    Contributors:

    Publication date :

    2021-02-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H04B TRANSMISSION , Übertragung / H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS , Scheinwiderstandsnetzwerke, z.B. Resonanzkreise



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