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8063713 |
Differential transmission line having a plurality of leakage resistors spaced between the transmission line
Designs and techniques for transmitting electrical signals via transmission lines on integrated circuits without distortion and at the speed of light. In one implementation, one or more leakage...
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8058557 |
Printed circuit board
An exemplary PCB includes a first reference layer, a first signal layer, a second signal layer, and a third signal layer in that order, a first differential pair is arranged in the first signal...
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8044746 |
Flexible interconnect cable with first and second signal traces disposed between first and second ground traces so as to provide different line width and line spacing configurations
A high speed flexible interconnect cable for an electronic assembly includes a number of conductive layers and a number of dielectric layers. Conductive signal traces, located on the conductive...
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8018296 |
Printed circuit board having a plurality of angled differential pairs of transmission lines
A printed circuit board includes a plurality of differential pairs arranged thereon side-by-side. Each differential pair includes two transmission lines. Each transmission line includes a plurality...
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7969255 |
Printed circuit board having signal line isolation patterns for decreasing WWAN noise
A printed circuit board (PCB) capable of decreasing wireless wide area network (WWAN) noise generated due to internal signal interference occurring in the PCB is disclosed. The PCB printed circuit...
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7911287 |
Multi-phase layout structure and method
The present invention provides a multi-phase layout structure and method. The layout structure comprises: a first layout layer; a second layout layer substantially parallel to the first layout...
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7834715 |
Circuit system
A circuit system includes: a master node; and a slave portion including a plurality of non-grounded slave nodes, each of which couples with the master node through a pair of communication lines....
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7772938 |
Electrical multiple-wire system for push-pull signal transmission with an attenuating or filtering element and data transmission bus
The electric multiple conductor system (1) is used for the transmission of signals in differential mode, and has two signal lines (5, 6) and a shared reference line (7). Each signal line (5, 6)...
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7728692 |
Reduction of noise in a metallic conductor signal pair using controlled line balancing and common mode impedance reduction
In order to reduce noise on twisted metallic pair signal conductors, circuits are disclosed in which the signal balance between the wires of the pair is significantly improved, thereby reducing the...
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7714681 |
Reconfigurable phase-shifter
A phase shifter device having two bandwidth modes arranged for altering the electrical length of a signal path between at least two different values, which device is adapted for guiding a signal...
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7656167 |
Electric field generator incorporating a slow-wave structure
An improved E-field generator including a slow-wave transmission line structure is provided herein. In some cases, the improved E-field generator may include an inductively-loaded slow-wave...
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7646262 |
High speed wideband differential signal distribution
An exemplary device that operates as a differential splitter includes a plurality of differential signal conductors. Each of the conductors is coupled to at least one other of the conductors by a...
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7642878 |
Plural signal transmission line circuits having a reference plane with separation slots therein corresponding to the plural signal transmission lines
A signal transmission circuit and method thereof are provided. The signal transmission circuit may include a plurality of signal transmission lines, each of the plurality of signal transmission...
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7609125 |
System, device and method for reducing cross-talk in differential signal conductor pairs
Systems, devices and methods are disclosed herein for reducing crosstalk between pairs of differential signal conductors. One or more ground traces connected to one or more over- or under-lying...
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7609130 |
High-frequency module including connection terminals arranged at a small pitch
In a high-frequency module, mounting lands arranged to mount at least one filter device having at least one set of an unbalanced terminal and two balanced terminals are provided at one side of a...
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7545233 |
Layout configuration of differential signal transmission lines for printed circuit board having offset vias
A layout configuration of a differential pair for a printed circuit board (PCB) having a signal plane is provided. In a preferred embodiment, the layout configuration comprises: a differential pair...
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7459985 |
Connector having a cut-out for reduced crosstalk between differential conductors
In some embodiments, an circuit card includes an electronic circuit substrate, a ground plane on the electronic circuit substrate, first and second differential signal pads on the electronic...
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7403080 |
Transmission line apparatus having conductive strips coupled by at least one additional capacitance element
A transmission line apparatus includes: a substrate 101 with a ground conductor plane; and first and second signal strips 102a, 102b supported on the substrate 101 in parallel with each other. The...
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7382210 |
Broadband differential coupling circuit having coupled differential aggressor and signal channels
Disclosed are various devices, systems and methods for testing broadband differential coupling circuits that are capable of measuring the amount of extraneous interference and noise in such...
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7265645 |
Matched-impedance high-bandwidth configuration jumper
The present invention provides a matched-impedance jumper that is operable to connect pairs of differential signal conductors to provide improved signal transmission characteristics. In an...
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7239213 |
Reduced cross-talk signaling circuit and method
Signaling between two or more ICs use a signaling scheme wherein a reference signal is generated at the driver side and the receiver side. The driver side reference signal is coupled to the...
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7230506 |
Crosstalk reduction for a system of differential line pairs
A technique is presented for minimizing crosstalk between adjacent differential signal pairs in communications. A backplane embodiment wherein the backplane includes a plurality of differential...
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7204648 |
Apparatus for enhancing impedance-matching in a high-speed data communications system
An impedance-matching electrical connection system, for use with high-frequency communication signals, includes a circuit board and a plurality of contact pads mounted on the circuit board. The...
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7160154 |
Grouped element transmission channel link termination assemblies
Termination assemblies for terminating high-frequency data signal transmission lines include housings with one or more cavities that receive ends of the transmission line therein. The transmission...
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7154355 |
Transmission line with a transforming impedance and solder lands
A transmission line for high-frequency differential signals and having a transforming impedance is formed into a substrate. The transmission line is comprised of a slot, the opposing surfaces of...
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7151420 |
Electromagnetically shielded slot transmission line
An electro-magnetically shielded slot-transmission line is formed by metallizing the opposing sides of a slot cut through a dielectric substrate. A ground plane is deposited on the bottom of the...
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7145411 |
Flexible differential interconnect cable with isolated high frequency electrical transmission line
A high speed flexible interconnect cable includes a number of conductive layers and a number of dielectric layers. Conductive signal traces, located on the conductive layers, combine with the...
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7113002 |
Transmission cable structure for GHz frequency band signals and connector used for transmission of GHz frequency band signals
A differential signal transmission cable structure for transmitting differential signals having GHz frequency band in the present invention is provided with a differential signal transmission pair...
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7109822 |
Method and apparatus for rapid prototyping of monolithic microwave integrated circuits
A system is provided for rapidly prototyping monolithic microwave integrated circuit modules to provide an experimental structure that can be physically made to operate by stereolithographically...
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7102456 |
Transmission line
A method of controlling a characteristic impedance of a transmission line, and a transmission line implementing the method. According to a basic version of the invention a distance between...
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7102455 |
Arrangements of differential pairs in multi-layer printed circuit board for eliminating crosstalk
An arrangement of differential pairs in a multi-layer printed circuit board is provided for eliminating crosstalk. The arrangement of differential pairs in the multi-layer printed circuit board...
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7068119 |
Fixed impedance shielded differential pair with pairs of side ground plane vias
A system and method for transferring information at a fast rate between add-in cards in a rack mount system are described. In one embodiment, the invention allow all the add-in cards within the...
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7061342 |
Differential transmission channel link for delivering high frequency signals and power
An engineered transmission line for transmitting high-frequency data signals between two points of connection includes a dielectric body and a plurality of conductive elements disposed thereon,...
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7049901 |
Parallel plate wave-guide structure in a layered medium for transmitting complementary signals
A parallel plate wave-guide structure in a layered flexible/formable medium for transmitting complementary signals, including: at least two parallel signal conductor plates, placed in substantially...
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7005939 |
Input/output circuit with on-chip inductor to reduce parasitic capacitance
An I/O circuit disposed on an integrated circuit substrate and having reduced parasitic capacitance. The I/O circuit includes a signal line segmented into a first signal line segment and a second...
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6972647 |
Embedded shielded stripline (ESS) structure using air channels within the ESS structure
A technique for facilitating signal transmission at high signal frequencies in a multi-layer substrate is disclosed. In one embodiment a multi-layer substrate comprises a conductor or pair of...
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6946926 |
Wired transmission path with plural equidistant differential conductors
A wired transmission path includes first and second differential transmission paths. The first differential transmission path is composed of two strip lines, and the second differential...
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6819201 |
Balanced high isolation fast state transitioning switch apparatus
A high speed switching apparatus comprises first and second parallel balanced lines each directed from an input line end to an output line end and adapted to receive equal and opposite currents to...
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6803518 |
High frequency transmission cable
A high frequency transmission cable includes one or more propagation channel sets, an inner covering wrapping the propagation channel sets and providing an effect of shield, drain wires and a...
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6703907 |
Circuit technique for increasing effective inductance of differential transmission lines
An electronic apparatus with a high inductive reactance for differential signals per unit area and a small inductive reactance for common-mode signals relative to its inductive reactance for...
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6687842 |
Off-chip signal routing between multiply-connected on-chip electronic elements via external multiconductor transmission line on a dielectric element
A semiconductor chip is provided with a dielectric element having conductive features interconnecting electronic elements within the chip with one another. The conductive features replace internal...
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6603376 |
Suspended stripline structures to reduce skin effect and dielectric loss to provide low loss transmission of signals with high data rates or high frequencies
A technique for improving signal reach and signal integrity when using high bit rates or high signal frequencies is provided. A multi-layer substrate comprises a conductor having a continuous main...
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6590466 |
Circuit board having shielding planes with varied void opening patterns for controlling the impedance and the transmission time of differential transmission lines
A flexible circuit board with specific shielding planes is used for low voltage differential transmission mode circuits. Both the impedance and the transmission time for the transmission line in...
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6492880 |
Common mode termination
A common mode termination includes a shielded connector, a receive section and a transmit section, each section comprising an isolation transformer, a common mode transformer, a reference...
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6411173 |
Method to achieve a DC balanced signal databus interface using combination of ethernet and RS-485 protocols with step-up transformer coupling
An interface method and system for interfacing a DC unbalanced databus with a DC balanced databus suited for use in an aircraft. The system includes a DC unbalanced databus and a controller coupled...
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6205138 |
Broadband any point to any point switch matrix
This invention is a broadband matrix switch system and method of operation. The broadband matrix switch has N number of broadband inputs, each of the broadband inputs having one or more broadband...
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5966056 |
Method and apparatus for enabling the transmission of multiple wide bandwidth electrical signals
Method and apparatus for enabling the transmission of high bandwidth analog and digital data over cable lengths of more than 1000 feet through low cost semishielded or unshielded four wire cable...
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5942903 |
Apparatus for EMC testing of electrical devices
In an apparatus for EMC testing of electrical devices, conductors are arranged at opposite sides of a chamber of conductive material at a spacing from and parallel to the chamber walls. These...
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5872490 |
Signal cable having parallel arranged shielded conductive lines
A signal cable is provided with a first signal line and second signal line which are respectively connected between a first signal device and a second signal device and are constructed so as to...
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5828268 |
Microwave switches and redundant switching systems
Microwave switches are shown which can route signals in an operating frequency band along selectable signal paths between a plurality of microwave ports. The switches are especially suited for...
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