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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 |
| 6914497 |
Parallel multistage band-pass filter |
Jul. 5, 2005 |
| 6895190 |
Switchable bandwidth lowpass filter |
May. 17, 2005 |
| 6888423 |
Electronic filter assembly |
May. 3, 2005 |
| 6882246 |
System and method for an electronically tunable frequency filter having constant bandwidth and temperature compensation for center frequency, bandwidth and insertion loss |
Apr. 19, 2005 |
| 6864759 |
Rotary signal coupler |
Mar. 8, 2005 |
| 6861926 |
.pi.-Type band pass filter |
Mar. 1, 2005 |
| 6842086 |
Two-pole notch filter |
Jan. 11, 2005 |
| 6822534 |
Laminated electronic component, laminated duplexer and communication device |
Nov. 23, 2004 |
| 6816032 |
Laminated low-profile dual filter module for telecommunications devices and method therefor |
Nov. 9, 2004 |
| 6812811 |
Power discriminating systems |
Nov. 2, 2004 |
| 6806793 |
MLC frequency selective circuit structures |
Oct. 19, 2004 |
| 6801102 |
Tunable filters having variable bandwidth and variable delay |
Oct. 5, 2004 |
| 6791433 |
Signal processing by means of resonators |
Sep. 14, 2004 |
| 6791436 |
Modular electrical signal filter assembly |
Sep. 14, 2004 |
| 6791435 |
Multilayer LC filter with improved magnetic coupling characteristics |
Sep. 14, 2004 |
| 6791434 |
Flat group-delay low-pass filter, mounting structure thereof, flat group-delay low-pass filter device, and optical signal receiver |
Sep. 14, 2004 |
| 6781482 |
Integrated circuit |
Aug. 24, 2004 |
| 6774737 |
High Q resonator circuit |
Aug. 10, 2004 |
| 6765458 |
LC high-pass filter circuit device, laminated LC high-pass filter device, multiplexer, and radio communication apparatus |
Jul. 20, 2004 |
| 6762655 |
Circuit arrangement |
Jul. 13, 2004 |
| 6762656 |
LC noise filter |
Jul. 13, 2004 |
| 6759927 |
Isolation shield assembly for electrical filters and a method of manufacturing electrical filters including same |
Jul. 6, 2004 |
| 6759926 |
LC filter circuit, monolithic LC composite component, multiplexer, and radio communication device |
Jul. 6, 2004 |
| 6750733 |
Coupled resonator filter tuning having inter-resonator interaction compensation |
Jun. 15, 2004 |
| 6734759 |
Droop compensation filter having high pass characteristic |
May. 11, 2004 |
| 6734760 |
Lumped filter, shared antenna unit, and communication device |
May. 11, 2004 |
| 6714100 |
Monolithic electronic device |
Mar. 30, 2004 |
| 6707685 |
Multi-layer wiring board |
Mar. 16, 2004 |
| 6674342 |
Electrical signal filter with improved isolation shield |
Jan. 6, 2004 |
| 6653917 |
High-temperature superconductor low-pass filter for suppressing broadband harmonics |
Nov. 25, 2003 |
| 6642812 |
High frequency circuit component |
Nov. 4, 2003 |
| 6636128 |
Frequency-tunable notch filter |
Oct. 21, 2003 |
| 6633209 |
Filter |
Oct. 14, 2003 |
| 6621378 |
Filter |
Sep. 16, 2003 |
| 6593816 |
Balanced input/output filter circuit and device |
Jul. 15, 2003 |
| 6590473 |
Thin-film bandpass filter and manufacturing method thereof |
Jul. 8, 2003 |
| 6587018 |
Notch filter and method |
Jul. 1, 2003 |
| 6583686 |
LC-included electronic component |
Jun. 24, 2003 |
| 6583687 |
Lamination type LC filter |
Jun. 24, 2003 |
| 6583684 |
Method of designing an equalizer and like electronic components |
Jun. 24, 2003 |
| 6577208 |
Radio frequency filter |
Jun. 10, 2003 |
| 6552629 |
Universally stable output filter |
Apr. 22, 2003 |
| 6549097 |
Electrical resonator with a ribbon loop and variable capacitors formed at the parallel ends |
Apr. 15, 2003 |
| 6542052 |
Monolithic LC components |
Apr. 1, 2003 |
| 6538531 |
Multilayered LC composite component and method for adjusting frequency of the same |
Mar. 25, 2003 |
| 6529101 |
Multilayered LC filter |
Mar. 4, 2003 |
| 6518859 |
Frequency controlled filter for the UHF band |
Feb. 11, 2003 |
| 6504452 |
Low-pass filter and mobile communication device using the same |
Jan. 7, 2003 |
| 6492885 |
LC component with grooves cut in the capacitor electrode |
Dec. 10, 2002 |
| 6483400 |
Passive low pass LC filter with counter-wound coils |
Nov. 19, 2002 |
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