发明名称 |
TWOOWIREEFOURRWIRE CONVERSION CIRCUIT |
摘要 |
PURPOSE:To always expand the isolation between four-wire input and output, by means of superposing four-wire side output signal by branching and taking out on the current being needed so as to correct the deviated part due to the two-wire side signal thereby controlling and balancing the four-wire side input load with the gap output. |
申请公布号 |
JPS5225541(A) |
申请公布日期 |
1977.02.25 |
申请号 |
JP19750101234 |
申请日期 |
1975.08.22 |
申请人 |
HITACHI LTD |
发明人 |
HONDA AKIRA;KITA YASUHIRO |
分类号 |
H04B3/03;H03H11/36;H04B1/58 |
主分类号 |
H04B3/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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