| |
 |
|
Class Information
Number: 333/176
Name: Wave transmission lines and networks > Coupling networks > Frequency domain filters utilizing only lumped parameters > Resonant, discrete frequency selective type > Including specific frequency rejection means
Description: Subject matter which include circuitry, provided for rejecting harmonics or for providing discrete transmission zeroes or attenuation poles within, at the edge of, or outside of, a prescribed filter pass band.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7592883 |
Dual bandstop filter with enhanced upper passband response |
Sep. 22, 2009 |
| 7592882 |
Dual bandstop filter with enhanced upper passband response |
Sep. 22, 2009 |
| 7589604 |
Selectable notch filter |
Sep. 15, 2009 |
| 7548136 |
Distortion reduction for variable capacitance devices |
Jun. 16, 2009 |
| 7466211 |
High-frequency switching module and frequency-characteristic adjusting method for high-frequency circuit |
Dec. 16, 2008 |
| 7427904 |
Ultra-high-frequency notch filter having an inductance set by selecting a conductor width |
Sep. 23, 2008 |
| 7418251 |
Compact radio frequency harmonic filter using integrated passive device technology |
Aug. 26, 2008 |
| 7352262 |
Insulation of anti-resonance in resonators |
Apr. 1, 2008 |
| 7327208 |
Printed circuit board including a notch filter for attenuating radio frequency interference |
Feb. 5, 2008 |
| 7265646 |
Tamper-resistant filter |
Sep. 4, 2007 |
| 7221240 |
Narrow bandpass filter installed on a circuit board for suppressing a high-frequency harmonic wave |
May. 22, 2007 |
| 7116954 |
Tunable bandpass filter and method thereof |
Oct. 3, 2006 |
| 7095300 |
Band eliminate filter and communication apparatus |
Aug. 22, 2006 |
| 7075389 |
Method and apparatus for achieving broadband matching of narrow-band resonator filter impedances to loads and sources |
Jul. 11, 2006 |
| 7023298 |
Method and apparatus for destructible trap/filter |
Apr. 4, 2006 |
| 7005945 |
Tamper resistant filter trap |
Feb. 28, 2006 |
| 6895190 |
Switchable bandwidth lowpass filter |
May. 17, 2005 |
| 6867665 |
Filters implemented in integrated circuits |
Mar. 15, 2005 |
| 6847269 |
High-frequency module and wireless communication device |
Jan. 25, 2005 |
| 6816042 |
Process to make lightweight objects |
Nov. 9, 2004 |
| 6812811 |
Power discriminating systems |
Nov. 2, 2004 |
| 6794957 |
CATV filter assembly with improved electrical grounding |
Sep. 21, 2004 |
| 6784760 |
Step attenuator using frequency dependent components and method of effecting signal attenuation |
Aug. 31, 2004 |
| 6765458 |
LC high-pass filter circuit device, laminated LC high-pass filter device, multiplexer, and radio communication apparatus |
Jul. 20, 2004 |
| 6737935 |
Diplex circuit forming bandstop filter |
May. 18, 2004 |
| 6707685 |
Multi-layer wiring board |
Mar. 16, 2004 |
| 6677833 |
Multilayered band separator with grounding parasitic capacitor |
Jan. 13, 2004 |
| 6670863 |
Device for suppressing electromagnetic coupling phenomena |
Dec. 30, 2003 |
| 6636405 |
Mitigation of 3rd harmonic currents in electrical power distribution systems |
Oct. 21, 2003 |
| 6636129 |
Two-tiered tuned filter |
Oct. 21, 2003 |
| 6587019 |
Dual directional harmonics dissipation system |
Jul. 1, 2003 |
| 6587018 |
Notch filter and method |
Jul. 1, 2003 |
| 6529102 |
LC filter circuit and laminated type LC filter |
Mar. 4, 2003 |
| 6512427 |
Spurious signal reduction circuit |
Jan. 28, 2003 |
| 6476957 |
Image rejecting microwave photonic downconverter |
Nov. 5, 2002 |
| 6472957 |
Low power switchable filter tuner |
Oct. 29, 2002 |
| 6472956 |
Tunable input trap circuit and image trap circuit |
Oct. 29, 2002 |
| 6469590 |
Marine antenna with an integral filter |
Oct. 22, 2002 |
| 6453157 |
Radio frequency tracking filter |
Sep. 17, 2002 |
| 6346859 |
Microwave amplifier with reduced beat noise |
Feb. 12, 2002 |
| 6232848 |
Low voltage topology for radio frequency integrated circuit design |
May. 15, 2001 |
| 6166458 |
Power conditioning circuit |
Dec. 26, 2000 |
| 6147576 |
Filter designs utilizing parasitic and field effects |
Nov. 14, 2000 |
| 6104259 |
Harmonic suppression circuit |
Aug. 15, 2000 |
| 6100776 |
High-frequency composite transmission section with switch, LC filter, and notch filter |
Aug. 8, 2000 |
| 6091312 |
Semi-lumped bandstop filter |
Jul. 18, 2000 |
| 6084486 |
Controllable filter and high frequency apparatus using the same |
Jul. 4, 2000 |
| 6043569 |
Zero phase sequence current filter apparatus and method for connection to the load end of six or four-wire branch circuits |
Mar. 28, 2000 |
| 5999058 |
Microwave amplifier |
Dec. 7, 1999 |
| 5963842 |
Satellite broadcasting receiving tuner |
Oct. 5, 1999 |
|
|
|
