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Class 331/169 - Anode to cathode coupled or connected resonant circuit


Subclass of Class 331 - Oscillators
Definition: Subject matter wherein the inductance-capacitance circuit
No. of patents: 4
Last issue date: 09/05/2006


NumberTitleIssue Date
7102465Frequency discrete LC filter bank
An inductive (“L”)-capacitive (“C”) filter bank has application for use in a television receiver. The LC filter includes inductors configured in at least one inductive (“L”) bank, and capacitors configured in at least one capacitive (“C”) bank. The i...
09/05/2006
6940365Methods and apparatus for an improved discrete LC filter
A discrete inductive-capacitive (LC) filter selects between at least two inductor banks to tune the LC filter. The filter receives an input signal that includes one or more bands of frequencies. A control signal selects a band of frequencies for processing. A first ...
09/06/2005
4954792Multi-grid electron tube high frequency power oscillator
A high-frequency power oscillator includes a tetrode electron tube (5), a current source (3) and a voltage-limiting circuit (4). The current source (3) is connected to the screen grid of the tetrode (5). This limits the screen grid current when the voltag...
09/04/1990
4220626RF Induction heating circuits for float zone refining of semiconductor rods
Apparatus for zone refining rods of semiconductive material is disclosed including an RF induction work coil having a single turn lying in a plane generally transverse to the lengthwise axis of the rod and encircling the rod. The coil is part of an RF pow...
09/02/1980
 
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