发明名称 |
Device for the automatic precorrection of non-linearities in a power amplification chain for a television transmitter |
摘要 |
A device for the automatic precorrection of non-linearities of a power amplification chain in a common channel television transmitter. The device has a first circuit for detecting the component to be corrected prior to amplification and addition of the components to be simultaneously amplified, a circuit for selecting the same components after amplification in a common channel, an attenuator of the latter component having an attenuation coefficient equal to the linear part of the amplification chain gain, a second detection circuit, an analog divider receiving the two detected components, whereof the output is coupled to the precorrection control input of a precorrection circuit upstream of the first precorrection circuit.
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申请公布号 |
US4672452(A) |
申请公布日期 |
1987.06.09 |
申请号 |
US19840663732 |
申请日期 |
1984.10.22 |
申请人 |
THOMSON-LGT LABORATOIRE GENERAL DES TELECOMMUNICATIONS |
发明人 |
CORBEL, PHILIPPE;ALLANIC, MICHEL |
分类号 |
H03F1/32;H04B1/04;H04N5/38;(IPC1-7):H04N5/40 |
主分类号 |
H03F1/32 |
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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