发明名称 |
Tuning system which produces control signals - which denote quality of reception of signals from transmitters |
摘要 |
<p>The tuning system has a signal test circuit producing a control signal describing the receive quality of a transmitter received at the antenna input. A changeover device changes over the signal input of the mixer from the output of the spectrum generator to the antenna input, the tuning of the mixer oscillator is stopped, and the signal test circuit is set into operation when a discriminator produces a signal having a desired value. The changeover device changes back and the tuning of the mixer oscillator enabled when the signal test circuit produces a control signal describing a poorly received transmitter or when the switch triggering the sweep mode is operated.</p> |
申请公布号 |
DE3008977(A1) |
申请公布日期 |
1981.09.17 |
申请号 |
DE19803008977 |
申请日期 |
1980.03.08 |
申请人 |
TEXAS INSTRUMENTS DEUTSCHLAND GMBH |
发明人 |
KANTHER,MANFRED;JOERG PUCHERT,HANS |
分类号 |
H03J7/28;(IPC1-7):03J7/18 |
主分类号 |
H03J7/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|