Negative impedance repeater with double amplification, for telephone
lines
    18.
    发明授权
    Negative impedance repeater with double amplification, for telephone lines 失效
    负阻抗中继器,双路放大,用于电话线路

    公开(公告)号:US3974345A

    公开(公告)日:1976-08-10

    申请号:US528008

    申请日:1974-11-29

    Applicant: Cesare Valfre

    Inventor: Cesare Valfre

    CPC classification number: H04B3/16 H04B3/36

    Abstract: A repeater for telephone lines, comprising two amplifier units serially connected and joined by an artificial line, the first unit having its input terminals connected to the secondary winding of a transformer of which the primary winding serves for connection of the repeater to the line, and the second unit having its output terminals connected to the primary winding of a second transformer of which the secondary winding is intended for connection of the repeater to the line.

    Abstract translation: 一种用于电话线路的中继器,包括由人造线串联和连接的两个放大器单元,第一单元的输入端连接到变压器的次级绕组,其初级绕组用于将中继器连接到线路,以及 第二单元具有连接到第二变压器的初级绕组的输出端子,次级绕组用于将中继器连接到线路。

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