发明授权
- 专利标题： Input circuit for television receiver
- 专利标题（中）： 电视接收机输入电路
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申请号： US610611申请日： 1984-05-15
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公开(公告)号： US4596045A公开(公告)日： 1986-06-17
- 发明人: Gerhard Maier
- 申请人： Gerhard Maier
- 申请人地址： DEX Villingen
- 专利权人： Deutsche Thomson-Brandt GmbH
- 当前专利权人： Deutsche Thomson-Brandt GmbH
- 当前专利权人地址： DEX Villingen
- 优先权： DEX3318197 19830519
- 主分类号： H03J5/24
- IPC分类号： H03J5/24 ; H04B1/16
摘要：
An input circuit is provided for a television receiver for amplifying and transforming the input signals into an intermediate frequency signal. The output of the mixers is fed via intermediate-frequency bandpass filters to respective decoupling diodes, which are switched on depending on the selected receiver frequency range. The output of the decoupling diodes is fed to an impedance transformer such as an emitter follower and its output in turn is entered into an intermediate-frequency amplifier.
公开/授权文献
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