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Class Information
Number: 333/1
Name: Wave transmission lines and networks > Plural channel systems
Description: Systems comprising (a) two or more wave transmission lines or networks, each line or network being operable to separately propagate wave energy or (b) means for effecting an interchange of wave energy from one transmission line to two or more transmission lines or vice versa, or having a coupling network for effecting an interchange of wave energy from a single input to plural outputs or vice versa, together with means for controlling or facilitating the interchange of energy.


Sub-classes under this class:

Class Number Class Name Patents
333/100 Having branched circuits 154
333/1.1 Nonreciprocal gyromagnetic type (e.g., circulators) 395
333/2 With automatic control 8
333/4 With balanced circuits 71


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
7619489 Semiconductor integrated circuit Nov. 17, 2009
7595445 Transposition device for a prefabricated electrical canalization Sep. 29, 2009
7504904 Printed-circuit impedance control using skewed reference mesh Mar. 17, 2009
7495526 Apparatus and method for reducing propagation delay in a conductor system selectable to carry a single signal or independent signals Feb. 24, 2009
7492234 Printed circuit board Feb. 17, 2009
7439821 DC to DC transmission system Oct. 21, 2008
7436267 Microstrip line dielectric overlay Oct. 14, 2008
7432775 High speed electronics interconnect having a dielectric system with cylindrical holes therein Oct. 7, 2008
7432774 Microstrip line dielectric overlay Oct. 7, 2008
7432776 Dielectric-filled transmission lines Oct. 7, 2008
7405634 Method for altering the delay properties of a transmission line using compensation tabs Jul. 29, 2008
7397320 Non-uniform transmission line for reducing cross-talk from an aggressor transmission line Jul. 8, 2008
7378919 Planar microwave line having microstrip conductors with a directional change region including a gap having periodic foldings May. 27, 2008
7352257 Flexible print cable having alternating signal and ground conductors and connector for the same Apr. 1, 2008
7336139 Flexible interconnect cable with grounded coplanar waveguide Feb. 26, 2008
7307498 Electrical connector test fixture Dec. 11, 2007
7281326 Technique for routing conductive traces between a plurality of electronic components of a multilayer signal routing device Oct. 16, 2007
7276986 Method and apparatus for improving signal integrity in a high speed flex cable Oct. 2, 2007
7239213 Reduced cross-talk signaling circuit and method Jul. 3, 2007
7230506 Crosstalk reduction for a system of differential line pairs Jun. 12, 2007
7205865 Power divider and combiner in communication system Apr. 17, 2007
RE39546 Jack including crosstalk compensation for printed circuit board Apr. 3, 2007
7170361 Method and apparatus of interposing voltage reference traces between signal traces in semiconductor devices Jan. 30, 2007
7164333 Standing wave barrier Jan. 16, 2007
7157987 Transmission line having a transforming impedance Jan. 2, 2007
7154954 Communication system Dec. 26, 2006
7154353 Microstrip lines in a multi-layered shielded configuration Dec. 26, 2006
7154354 High permeability layered magnetic films to reduce noise in high speed interconnection Dec. 26, 2006
7116190 Slot transmission line patch connector Oct. 3, 2006
7102455 Arrangements of differential pairs in multi-layer printed circuit board for eliminating crosstalk Sep. 5, 2006
7068118 Pulse modulator for nonradiative dielectric waveguide, and millimeter wave transmitter/receiver using the same Jun. 27, 2006
7048992 Fabrication of Parascan tunable dielectric chips May. 23, 2006
7005726 Semiconductor device with an improved transmission line Feb. 28, 2006
6987428 Electromagnetic coupler flexible circuit with a curved coupling portion Jan. 17, 2006
6985055 Transmission line comprised of interconnected parallel line segments Jan. 10, 2006
6980063 Transmission line parasitic element discontinuity cancellation Dec. 27, 2005
6970053 Atomic layer deposition (ALD) high permeability layered magnetic films to reduce noise in high speed interconnection Nov. 29, 2005
6940362 Printed wiring board for controlling signal transmission using paired inductance and capacitance Sep. 6, 2005
6914326 Solder ball landpad design to improve laminate performance Jul. 5, 2005
6914502 Wiring structure for transmission line having grooved conductors Jul. 5, 2005
6870465 Interface controller for magnetic field based power transmission line communication Mar. 22, 2005
6842092 Apparatus and method for reducing propagation delay in a conductor Jan. 11, 2005
6816025 Cross talk compensation circuit Nov. 9, 2004
6812803 Passive transmission line equalization using circuit-board thru-holes Nov. 2, 2004
6812810 Bridges for microelectromechanical structures Nov. 2, 2004
6809608 Transmission line structure with an air dielectric Oct. 26, 2004
6803518 High frequency transmission cable Oct. 12, 2004
6791429 Transmission line parasitic element discontinuity cancellation Sep. 14, 2004
6774741 Non-uniform transmission line and method of fabricating the same Aug. 10, 2004
6750730 Tuning arrangement for a microwave device Jun. 15, 2004

1 2 3 4


 
 
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