发明名称 |
Transmission circuit for an electronic telephone set |
摘要 |
A transmission circuit for an electronic telephone set has a transmit circuit which as far as direct current is concerned is connected in parallel with the series arrangement of a logic circuit, a current source and a receive circuit. This enables the voltage space of the transmit circuit to be equal to the line voltage so that a maximum transmit level can be achieved.
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申请公布号 |
US4518828(A) |
申请公布日期 |
1985.05.21 |
申请号 |
US19830461717 |
申请日期 |
1983.01.28 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
GEBOERS, JOSEPHUS J. A.;JANSSEN, DANIEL J. G. |
分类号 |
H04M1/00;H04M1/60;H04M19/08;(IPC1-7):H04M1/60 |
主分类号 |
H04M1/00 |
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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