Superheterodyne radio receiver having compensating means for frequency drift of the received carrier wave

作者: Earp Charles William

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摘要: The present invention relates to superheterodyne radio receivers in which the frequency of local oscillator is varied compensate for drift received carrier wave by means a voltage varies response variations frequency. According...

参考文章(5)
Ralph L. Miller, Frequency conversion circuit ,(1939)
Norton F. Shofstall, Automatic volume control system ,(1940)
Nelson P. Case, Automatic frequency control ,(1937)