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Communications
Class Information
Number:
455/322
Name:
Telecommunications
>
Receiver or analog modulated signal frequency converter
>
Frequency modifying or conversion
>
With specified local oscillator structure or coupling
>
In a single envelope or with common active element (e.g., autodyne)
> Plural common electrode
Description:
Subject matter wherein the conversion means and local oscillator means are combined in a single electron tube having a plurality of separate control grids.
Patents under this class:
Patent Number
Title Of Patent
Date Issued
7369837
Frequency-mixing method and frequency-mixing device using the same
May. 6, 2008
5920810
Multiplier and method for mixing signals
Jul. 6, 1999
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