发明名称 COUPLER CIRCUIT FOR REMOTE CARRIER SUPERVISORY CONTROL DEVICE
摘要 PURPOSE:To enhance the impedance (as evaluated from the transmission line side) of a carrier control device by inserting an analog gate circuit in between the carrier siganl samplifier and the transmission line, the gate circuit being controlled through an impedance compansator circuit.
申请公布号 JPS52153137(A) 申请公布日期 1977.12.20
申请号 JP19760070648 申请日期 1976.06.15
申请人 MATSUSHITA ELECTRIC WORKS LTD 发明人 KITAGAWA FUMIO
分类号 H02J13/00;H04B3/56;H04Q9/00 主分类号 H02J13/00
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