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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 186
333/1.1 Nonreciprocal gyromagnetic type (e.g., circulators) 457
333/2 With automatic control 8
333/4 With balanced circuits 106


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8705636 Passive single-ended line test Apr. 22, 2014
8686807 Transmission line having a first higher power level carrying signal conductor separated by conductive vias from a second lower power level carrying signal conductor Apr. 1, 2014
8674781 Printed circuit board comprised of an insulating layer having buried microstrip lines and conductors with widths that narrow into the insulation layer Mar. 18, 2014
8629741 Slot-type shielding structure having extensions that extend beyond the top or bottom of a coplanar waveguide structure Jan. 14, 2014
8624687 Differential signal crosstalk reduction Jan. 7, 2014
8552810 Arrangement for reducing interference Oct. 8, 2013
8538323 Satellite architecture Sep. 17, 2013
8497742 Multi-layer waveguide structure having spaced apart first and second signal units of different widths and heights Jul. 30, 2013
8461937 Method for pseudo-differential transmission using natural electrical variables Jun. 11, 2013
8384489 Serpentine micro-strip lines configured in an aggressor/victim type transmission line structure Feb. 26, 2013
8378759 First and second coplanar microstrip lines separated by rows of vias for reducing cross-talk there between Feb. 19, 2013
8369099 Electronics device module Feb. 5, 2013
8350637 Circuit substrate including a plurality of signal lines and ground lines forming a 3-D grounding circuit loop Jan. 8, 2013
8344819 Conformal reference planes in substrates Jan. 1, 2013
8294529 Printed circuit board comprised of an insulating layer having buried microstrip lines and conductors with widths that narrow into the insulation layer Oct. 23, 2012
8274340 Parallel transmission lines having different path lengths and including different properties for equalizing the path lengths there between Sep. 25, 2012
8248177 Method and device for pseudo-differential transmission Aug. 21, 2012
8238841 Wireless transceiver chip and calibration method thereof Aug. 7, 2012
8203395 Wave guiding structures for crosstalk reduction Jun. 19, 2012
8203082 Printed circuit board Jun. 19, 2012
8174334 Method for transmission using a non-uniform interconnection May. 8, 2012
RE43366 Jack including crosstalk compensation for printed circuit board May. 8, 2012
8169273 Flat uniform transmission line having electromagnetic shielding function May. 1, 2012
8159310 Mictostrip transmission line structure with vertical stubs for reducing far-end crosstalk Apr. 17, 2012
8143966 Coupling cancellation scheme Mar. 27, 2012
8106721 Multilayer complementary-conducting-strip transmission line structure with plural interlaced signal lines and mesh ground planes Jan. 31, 2012
8094808 Unpowered twisted pair loopback circuit for differential mode signaling Jan. 10, 2012
8058954 Transmission line with a cross-hatched ground plane that is either filled with conductive paint or covered by a conductive foil Nov. 15, 2011
8058943 Flat uniform transmission line having electromagnetic shielding function Nov. 15, 2011
8054142 Plural rectangular waveguides having longer cross-sectional lengths based on shorter waveguide line lengths Nov. 8, 2011
8049573 Bidirectional multiplexed RF isolator Nov. 1, 2011
8040198 Printed wiring board having wire grounding conductors with distances that are 1/n the width of the signal lines Oct. 18, 2011
7999639 Waveguide structure comprised of grooves formed in resin and metal portions Aug. 16, 2011
7969255 Printed circuit board having signal line isolation patterns for decreasing WWAN noise Jun. 28, 2011
7961062 Aggressor/victim transmission line pair having spaced time delay modules for providing cross-talk reduction Jun. 14, 2011
7928814 Apparatus and method for signal level control Apr. 19, 2011
7911287 Multi-phase layout structure and method Mar. 22, 2011
7911288 Non-uniform transmission line for reducing cross-talk from an agressor transmission line Mar. 22, 2011
7898355 Flat uniform transmission line having electromagnetic shielding function Mar. 1, 2011
7880555 Interconnection system with a dielectric system having holes therein that run uninterrupted through the dielectric system Feb. 1, 2011
7880556 Interconnection system with a dielectric system having holes therein that run uninterrupted through the dielectric system Feb. 1, 2011
7859356 Transmission line system having high common mode impedance Dec. 28, 2010
7852169 High speed interconnection system having a dielectric system with polygonal arrays of holes therein Dec. 14, 2010
7830221 Coupling cancellation scheme Nov. 9, 2010
7831226 Impedance matching system, network analyzer having the same, and impedance matching method thereof Nov. 9, 2010
7791437 High frequency coplanar strip transmission line on a lossy substrate Sep. 7, 2010
7755445 Multi-layered high-speed printed circuit boards comprised of stacked dielectric systems Jul. 13, 2010
7719378 Flexible interconnect cable for an electronic assembly May. 18, 2010
7719379 High speed electronics interconnect having a dielectric system with air holes of varying diameters and spans May. 18, 2010
7705690 Serpentine guard trace for reducing crosstalk of micro-strip line on printed circuit board Apr. 27, 2010

1 2 3 4 5 6










 
 
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