US 10,660,197 B2Granted

Differential pair group equalization system

AssigneeDell Products L.P.

InventorsWade Andrew Butcher, Bhyrav M. Mutnury

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Abstract

A differential pair group equalization system includes a board providing a differential trace pair group with a plurality of differential trace pairs, each of a transmitter device and a receiver device are coupled to the board and the differential trace pairs in the differential trace pair group. At least one of the transmitter device and the receiver device operates to identify a first differential trace pair in the differential trace pair group, and adjust second differential trace pair equalization parameters for a second differential trace pair in the differential trace pair group. If it is determined that first differential trace pair signal transmission capabilities for the first differential trace pair have improved in response to the adjustment of the second differential trace pair equalization parameters for the second differential trace pair the second differential trace pair equalization parameters are set for the second differential trace pair.

Claims20

Dependent claims

A differential pair group equalization system, comprising:

a board;
a differential trace pair group that is provided on the board, wherein the differential trace pair group includes a plurality of differential trace pairs;
a transmitter device that is coupled to the board and to each of the plurality of differential trace pairs in the differential trace pair group;
and
a receiver device that is coupled to the board and to each of the plurality of differential trace pairs in the differential trace pair group, wherein at least one of the transmitter device and the receiver device is configured to:
identify a first differential trace pair that is included in the plurality of differential trace pairs in the differential trace pair group;
adjust second differential trace pair equalization parameters for a second differential trace pair that is included in the plurality of differential trace pairs in the differential trace pair group;
and
determine that first differential trace pair signal transmission capabilities for the first differential trace pair have improved in response to the adjustment of the second differential trace pair equalization parameters for the second differential trace pair and, in response, set the second differential trace pair equalization parameters for the second differential trace pair.

6 more elements

An Information Handling System (IHS), comprising:

a processing system;
and
a memory system that is coupled to the processing system and that includes instructions that, when executed by the processing system, cause the processing system to provide an equalization engine that is configured to:
identify a first differential pair that is included in a plurality of differential pairs that are coupled to the processing system;
provide for the adjustment of second differential pair equalization parameters for a second differential pair that is included in the plurality of differential pairs that are coupled to the processing system;
and
determine that first differential pair signal transmission capabilities for the first differential pair have improved in response to the adjustment of the second differential pair equalization parameters for the second differential pair and, in response, cause the second differential pair equalization parameters to be set for the second differential pair.

4 more elements

A method for differential pair group equalization, comprising:

identifying, by at least one device coupled to a differential pair group, a first differential pair that is included in a plurality of differential pairs in the differential pair group;
providing, by the at least one device, for the adjustment of second differential pair equalization parameters for a second differential pair that is included in the plurality of differential pairs in the differential pair group;
and
determining, by the at least one device, that first differential pair signal transmission capabilities for the first differential pair have improved in response to the adjustment of the second differential pair equalization parameters for the second differential pair and, in response, causing the second differential pair equalization parameters to be set for the second differential pair.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 16/041,315Filed 20 Jul 2018
Published: US 2020/0029425 A123 Jan 2020
Granted: 19 May 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H05K 1/0245
High frequency adaptations: lay-out of balanced signal pairs, e.g. differential lines or twisted lines
H04B 1/40
Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of…: circuits
H04B 3/14
Control of transmission; Equalising: characterised by the equalising network used
H04B 3/148
Using phase-frequency equalisers: variable equalisers