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Class Information
Number: 333/175
Name: Wave transmission lines and networks > Coupling networks > Frequency domain filters utilizing only lumped parameters > Resonant, discrete frequency selective type
Description: Subject matter which include resonant series and/or parallel inductance and capacity networks which offer a low impedance path to energy of a particular frequency or of a plurality of separate discrete frequencies and/or offer a high impedance path to energy of a particular frequency or of a plurality of discrete frequencies.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4430629 |
Electrical filter circuit operated with a definite sampling and clock frequency f.sub.T which consists of CTD elements |
Feb. 7, 1984 |
| 4425565 |
Multiple resonant coil using distributed capacity between turns |
Jan. 10, 1984 |
| 4413262 |
Multiple frequency tuned circuit |
Nov. 1, 1983 |
| 4406991 |
High power resonance filters |
Sep. 27, 1983 |
| 4396893 |
Frequency selective limiter |
Aug. 2, 1983 |
| 4394631 |
Radio frequency choke and method of use |
Jul. 19, 1983 |
| 4387352 |
Transducer array crossover network |
Jun. 7, 1983 |
| 4385402 |
Switchable filter circuits |
May. 24, 1983 |
| 4383203 |
Circuit means for efficiently driving an electrodeless discharge lamp |
May. 10, 1983 |
| 4369416 |
Band-stop filter for equipment with carrier-frequency utilization of low-voltage lines |
Jan. 18, 1983 |
| 4353044 |
Switched-capacitor filter circuit having at least one simulated inductor and having a resonance frequency which is one-sixth of the sampling frequency |
Oct. 5, 1982 |
| 4338582 |
Electronically tunable resonator circuit |
Jul. 6, 1982 |
| 4243957 |
Universal equalizer |
Jan. 6, 1981 |
| 4236127 |
Electrical frequency responsive structure |
Nov. 25, 1980 |
| 4213106 |
Tuning apparatus and method of producing the same |
Jul. 15, 1980 |
| 4182997 |
Band-pass/band-stop filter for telecommunication system |
Jan. 8, 1980 |
| 4173744 |
Impedance matched coupling device for microwave tubes |
Nov. 6, 1979 |
| 4153887 |
Electrically tunable bandpass filter |
May. 8, 1979 |
| 4138625 |
Helix type travelling-wave tube amplifier |
Feb. 6, 1979 |
| 4128818 |
Electrical frequency responsive structure |
Dec. 5, 1978 |
| 4126840 |
Filter connector |
Nov. 21, 1978 |
| 4097894 |
Secured scramble decoder filter |
Jun. 27, 1978 |
| 3986691 |
Phase selective track circuit apparatus |
Oct. 19, 1976 |
| 3947934 |
Method of tuning a tunable microelectronic LC circuit |
Apr. 6, 1976 |
| 3936830 |
Doppler navigation system with tracking filter for multipath discrimination |
Feb. 3, 1976 |
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