Dell Products Inc.

Dell USA L.p.

Sandor Tibor Farkas

Bhyrav M Mutnury

Steven Embleton

Jon T Fitch

Joseph Danny King

Stuart Allen Berke

Kevin Warren Mundt

Raymond Dewine Heistand, Ii

Michael Joseph Stumpf

Wallace Huson Ables

Mark Smith

Timothy Michael Lambert

John S Loffink

Syed S Ahmed

Mark A Smith

Paul Theodore Artman

Shawn Paul Hoss

Wade Andrew Butcher

Bhavesh Govindbhai Patel

Sanjiv Sinha

Yeshaswy Rajupalepu

Steven Richard Ethridge

Girish Kumar Singh

Mukund Purshottam Khatri

John Erven Jenne

Jimmy Doyle Pike

Shawn Joel Dube

Corey Dean Hartman

Laurent Andrew Regimbal

Indrani Paul

Akkiah Choudary Maddukuri

Isaac Qin Wang

Lei Wang

Brandon Joel Brocklesby

Robert Boyd Curtis

Jean Marie Doglio

Bernard D Strmiska

Chris Everett Peterson

Vibora Sim

Quy Hoang

Scott Michael Ramsey

Michael J Roberts

Stephen Cochran

Jeremiah James Bartlett

Aubrey K Sparkman

Darrell J Slupek

Ching-Huei Chen

Charles L Haley

Desmond Awungayi

Hector F Martinez

Larry P Robison, Jr

Raymond D Heistand Ii

Danny King

James H Singer

Fernando Meschino

Thomas Edwin Garvens

Brandon J Brockelsby

Joseph Tarantolo

Raymond D Heistand

A printed circuit board includes a dielectric and a connector. The connector is mounted on the dielectric. The connector includes a first connector lead, a first contact point, and a first connector wipe. The first connector wipe includes a plurality of low impedance bumps. The low impedance bumps create an impedance mismatch between the first connector lead and the first connector wipe.

Reflective cancellations in a connector wipe of a surface mount connector

A printed circuit board comprising a first connection pad coupled to a first portion of a microstrip trace and a second connection pad coupled to a second portion of the microstrip trace. The microstrip trace has a first impedance along the first portion and a second impedance along the second portion. The printed circuit board also includes a conductive plane on a top surface of the microstrip trace, wherein the conductive plane includes a plurality of cutouts to reduce impedance mismatch between the first impedance and the second impedance.

Impedance tuning of microstrip traces

A printed circuit board includes a dielectric material, a signal trace on a surface of the dielectric material, a signal layer within the dielectric material, a via including plating, and multiple back drill locations. The plating provides an electrical communication between the signal trace and the signal layer, and the via has a diameter. The back drill locations are along a length of the via beyond the signal layer. A first combined diameter of the back drill locations at a bottom of the back drill locations is equal to the dimeter of the via. A second combined diameter of the back drill locations at a top of the back drill locations is greater than the dimeter of the via.

Printed circuit board with reduced via striping

A printed circuit board includes a dielectric and a connector. The connector is mounted on the dielectric. The connector includes a first connector lead, a first contact point, and a first connector wipe. The first connector wipe includes a first wider section adjacent to the first contact point. The first wider section creates an impedance mismatch between the first connector lead and the first connector wipe.

Reflective cancellations in a connector wipe

A method for environmentally managing a computing device of an information handling system includes extracting, using a corrosive material filter, corrosive materials from an airflow that thermally manages a computing component of the computing device. The method further includes, while extracting the corrosive materials, monitoring a corrosion state of the corrosive material filter; making a determination that the corrosive material filter should be replaced based on the corrosion state; and scheduling replacement of the corrosive material filter based on the determination.

System and method for service life management based on corrosive material removal

A system to minimize effects of ground plane noise, including a processing unit including a first transmitter, a first receiver, and a first transistor, wherein the first transistor is coupled to the first receiver, the first transistor associated with a first ground voltage; and a memory device including a second transmitter, a second receiver, and a second transistor, wherein the second transistor is coupled to the second receiver, the second transistor associated with a second ground voltage; wherein the processing unit is coupled to the memory device, wherein the first transistor is coupled to the second transistor, wherein, when the processing unit is transmitting data to the memory device, the processing unit enables the first transistor and the memory device disables the second transistor such that a second threshold voltage associated with the second receiver is adjusted based on the first ground voltage.

System to minimize effects of ground plane noise

A computing cable that connects computing elements, including: a trace including a first trace segment and a second trace segment, the trace having a first impedance; and an attenuator connecting the first trace segment to the second trace segment, the attenuator including: a resistor having a resistance, and a conductor having a second impedance, wherein the combination of the resistance and the second impedance is based on the first impedance.

Loss-controlled computing cable

A system for preventing crosstalk between adjacent channels comprises a crossover connector positioned along a length of one channel such that a portion of a positive trace for a first channel is positioned adjacent to a positive trace of a positive trace of an adjacent channel. The position of the crossover connector is based on preventing crosstalk and crossover connectors on adjacent channels may be staggered to further prevent crosstalk. A crossover connector may be based on capacitors or resistors to prevent crosstalk.

System for crosstalk rejecting topology

A test system is provided for determining that data channels on a printed circuit board (PCB) have a predetermined impedance level. Each channel in the PCB is terminated at the predetermined impedance level. The PCB has a receptacle for coupling a device to the channels. An instrument can be installed into the receptacle, and includes connections to each of the channels, and a connector that is coupled to the connections by a channel splitter network. A test device is coupled to the connector and provides a test signal to the connector, receives a return signal from the connector, and determines that at least one of the channels does not have the predetermined impedance based upon the return signal.

Channel impedance measurement instrument

An integrated circuit device includes a multiplexor and multiple receivers for high-speed data communication interfaces. The multiplexor includes multiple signal inputs, a selector input, and a signal output. Each receiver includes a differential data signal input including a positive signal input and a negative signal input, a first termination resistor to terminate the positive signal input to a reference voltage node, a second termination resistor to terminate the negative signal input to the reference voltage node, and a noise measurement node to detect common mode noise at the reference voltage node, the noise measurement node coupled to an associated one of the signal inputs.

Common mode noise measurement in multiple data communication interface receivers

A circuit includes an inductive circuit trace and a nonlinear device. The circuit conducts a signal input to a load. The circuit trace receives the signal input at a first end of the circuit trace and provides the signal input to the load at a second end of the circuit trace. The nonlinear device is coupled at the second end and is configured to increase a voltage rise time of the signal input.

Slew rate in low-speed data communication interfaces

A receiver for a high-speed data communication interface includes a differential data signal input, a first termination resistor, a second termination resistor, and a noise measurement node. The differential data signal input includes a positive signal input and a negative signal input. The first termination resistor terminates the positive signal input to a reference voltage node. The second termination resistor terminates the negative signal input to the reference voltage node. The noise measurement node is coupled to detect common mode noise at the reference voltage node.

Common mode noise measurement in a data communication interface receiver

A printed circuit board includes metal layers, a metalized circuit via interconnecting a first one of the metal layers and a second one of the metal layers, and a back-drill hole drilled to remove metalization of the circuit via from a third metal layer adjacent to the second metal layer to a fourth metal layer at a first surface of the printed circuit board. The back-drill hole has a profile that includes a first undercut at a bottom of the first back-drill hole.

System and method to eliminate via striping

A processing device includes a transmitter, a difference amplifier, and a data detector. A first output buffer of the transmitter receives data and has a first output coupled to a channel that is designed to have a first impedance value, but that has a second impedance value that which may or may not be equal to the first impedance value. A second output buffer of the transmitter receives the data and has an output coupled to a circuit that has the first impedance. The difference amplifier has inputs coupled to the outputs of the first and second output buffers. The data detector is coupled to an output of the difference amplifier. The data processing device operates in a test operation mode to provide test data to the first and second output buffers and to determine whether the second impedance is equal to the first impedance based on information from the data detector.

On-die channel impedance verification

A connection assembly including a receptacle connector having a first and a second end, including: a shell, including a first outer surface and a second outer surface; a shield surrounding the shell, the shield including: a first portion including a first cam flange, the first portion rotatable about a first spring hinge; a second portion including a second cam flange, the second portion rotatable about a second spring hinge; a mating connector removable coupleable to the receptacle connector, including: an adjustment member, wherein, when a positioning of the adjustment member is adjusted to decrease a distance between the adjustment member and the second end of the receptacle connector, the adjustment member adjusts a distance between the first cam flange and the second cam flange to rotate the first portion of the shield about the first spring hinge and rotate the second portion of the shield about the second spring hinge.

Connection assembly for use in an information handling system

Growing community of inventors

Pflugerville, TX, United States of America

Sandor Tibor Farkas