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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 |
| 6476688 |
Filter assembly |
Nov. 5, 2002 |
| 6469596 |
Annular composite capacitor/inductor with a switch across the gap |
Oct. 22, 2002 |
| 6469590 |
Marine antenna with an integral filter |
Oct. 22, 2002 |
| 6456836 |
Frequency multiplier and wireless device incorporating same |
Sep. 24, 2002 |
| 6448865 |
Integrated circuit interconnect system |
Sep. 10, 2002 |
| 6441701 |
Tunable bridged-T filter |
Aug. 27, 2002 |
| 6438394 |
Frequency dependent inductor apparatus and method for a narrow-band filter |
Aug. 20, 2002 |
| 6433653 |
Monolithic LC resonator and filter with a capacitor electrode within a tubular inductor |
Aug. 13, 2002 |
| 6429754 |
Electrical signal filter with improved isolation shield |
Aug. 6, 2002 |
| 6417745 |
LC filter with a coupling capacitor formed by shared first and second capacitor patterns |
Jul. 9, 2002 |
| 6380826 |
Filter assembly |
Apr. 30, 2002 |
| 6329890 |
Modular thin film distributed filter |
Dec. 11, 2001 |
| 6317013 |
Delay line filter |
Nov. 13, 2001 |
| 6262638 |
Tunable and matchable resonator coil assembly for ion implanter linear accelerator |
Jul. 17, 2001 |
| 6249194 |
Composite filter comprising LC and saw filters and radio communication apparatus using the filter |
Jun. 19, 2001 |
| 6239672 |
Wall mount filter for a digital subscriber line (xDSL) network and methods of installation and manufacture |
May. 29, 2001 |
| 6229408 |
Zero loss bias "T" |
May. 8, 2001 |
| 6211754 |
Integrated resonance circuit consisting of a parallel connection of a microstrip line and a capacitor |
Apr. 3, 2001 |
| 6191665 |
Coupling circuit to reduce intermodulation distortion in radiofrequency receivers |
Feb. 20, 2001 |
| 6130590 |
Programmable filter bank having notch filter and bandpass filter frequency responses |
Oct. 10, 2000 |
| 6127906 |
Modular thin film distributed filter |
Oct. 3, 2000 |
| 6107898 |
Microwave channelized bandpass filter having two channels |
Aug. 22, 2000 |
| 6097269 |
Electrically tunable band pass filter with symmetrical low-side and high-side protection |
Aug. 1, 2000 |
| 6072999 |
Receiving apparatus |
Jun. 6, 2000 |
| 6064281 |
Semi-lumped bandpass filter |
May. 16, 2000 |
| 6046409 |
Multilayer microelectronic circuit |
Apr. 4, 2000 |
| 6027408 |
Interactive probe game |
Feb. 22, 2000 |
| 6025761 |
Composite filter with LC and saw filters and radio equipment using the same |
Feb. 15, 2000 |
| 6018279 |
Radio frequency coupler |
Jan. 25, 2000 |
| 6009004 |
Single-phase harmonic filter system |
Dec. 28, 1999 |
| 5999066 |
Interface module for a sending section and a receiving section |
Dec. 7, 1999 |
| 5969582 |
Impedance matching circuit for power amplifier |
Oct. 19, 1999 |
| 5955931 |
Chip type filter with electromagnetically coupled resonators |
Sep. 21, 1999 |
| 5949304 |
Multilayer ceramic package with floating element to couple transmission lines |
Sep. 7, 1999 |
| 5920468 |
AC line filter network for video applications |
Jul. 6, 1999 |
| 5917387 |
Filter having tunable center frequency and/or tunable bandwidth |
Jun. 29, 1999 |
| 5892415 |
Laminated resonator and laminated band pass filter using same |
Apr. 6, 1999 |
| 5883553 |
Filter unit adapted for miniaturization and for selecting a particular signal where a plurality of signals different in bandwidth coexist |
Mar. 16, 1999 |
| 5864185 |
Sub-synchronous resonance filters for series capacitors |
Jan. 26, 1999 |
| 5844791 |
Single-phase harmonic filter system |
Dec. 1, 1998 |
| 5841329 |
Variable trap circuit |
Nov. 24, 1998 |
| 5821831 |
Diplex filter comprising monotonic poles |
Oct. 13, 1998 |
| 5815052 |
High-frequency composite components comprising first and second circuits connected in parallel for multi-frequency systems |
Sep. 29, 1998 |
| 5793265 |
Compact diplexer |
Aug. 11, 1998 |
| 5781081 |
LC-type dielectric filter having an inductor on the outermost layer and frequency adjusting method therefor |
Jul. 14, 1998 |
| 5777533 |
LC filter with external electrodes only on a smaller layer |
Jul. 7, 1998 |
| 5774027 |
Band-pass filter with trap circuits having different Q factors |
Jun. 30, 1998 |
| 5770983 |
Reduced length tuned filter having transverse oriented coils |
Jun. 23, 1998 |
| 5739735 |
Filter with improved stop/pass ratio |
Apr. 14, 1998 |
| 5734305 |
Stepwise switched filter |
Mar. 31, 1998 |
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