发明名称 |
Apparatus for correcting distortion in low frequency cable |
摘要 |
Apparatus for correcting attenuation distortion in low frequency cable carrying a base-band signal from a transmitter to a receiver is described. A measuring device produces an indicating signal having a value dependent on the peak value of the base-band signal appearing in the region of the receiver. The receiver contains an amplifier, the gain of which is controlled by a RC element. The indicating signal is used to regulate the gain of the amplifier so that the cable and the amplifier together produce a substantially constant attenuation characteristic within a given low frequency range.
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申请公布号 |
US4056791(A) |
申请公布日期 |
1977.11.01 |
申请号 |
US19750627264 |
申请日期 |
1975.10.30 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
LOHMANN, REINER;LUDWIG, VOLKER |
分类号 |
H04B3/06;H04L25/20;(IPC1-7):H04B3/04 |
主分类号 |
H04B3/06 |
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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