Back to results
US 7,607,951 B2Granted
Differential pair inversion for reduction of crosstalk in a backplane system
AssigneeAmphenol Corporation
InventorBrian Peter Kirk
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeAmphenol Corporation
InventorBrian Peter Kirk
Estimating the term…
A connection system has two connectors connected to each other by a plurality of differential signal pairs. The differential signal pairs alternate between a “straight connection” and a “reverse connection” between the connectors. The “straight connection” is formed by having a first signal trace connected from a positive launch in the first connector to a positive launch in the second connector, or P-P. And, the second signal trace has an N-N connection. The “reverse connection” has a first signal trace connected from a positive launch in the first connector to a negative launch in the second connector, or P-N. And, the second signal trace has a N-P connection. By inverting the pin connections of every other differential signal pair on the backplane, the forward crosstalk from the first connector is cancelled by the crosstalk generated by the second connector.
A connection system for connecting a first connector with a second connector on a circuit board, the system comprising:
A connection system for a first connector having a negative signal launch and a positive signal launch and a second connector having a negative signal launch and a positive signal launch, the system comprising:
A connection system comprising:
A connection system for use with a first electronic element and a second electronic element, the system comprising a plurality of differential signal pairs, the differential signal pairs forming an alternating pattern of differential signal pairs having a straight connection between the first and second electronic elements and differential signal pairs having a reverse connection between the first and second electronic elements, wherein the straight connection is formed by having a first signal trace connected from a positive launch in the first electronic element to a positive launch in the second electronic element, and a second signal trace connected from a negative launch in the fist electronic element to a negative launch in the second electronic element, and the reverse connection is formed by a first signal trace connected from a positive launch in the first electronic element to a negative launch in the second electronic element and a second signal trace connected from a negative launch in the first electronic element to a positive launch in the second electronic element.
A method for connecting a first connector with a second connector, the method comprising connecting a first signal line of a first differential signal pair from a positive launch of the first connector to a positive launch of the second connector;
Dependencies are inferred from the claim text.