公开(公告)号：US12101875B2

公开(公告)日：2024-09-24

申请号：US17362734

申请日：2021-06-29

Applicant: Hewlett Packard Enterprise Development LP

Inventor： David P. Kopp ,  Karl J. Bois ,  Steven J. Martin

IPC: H03H7/38 ,  G11C5/04 ,  H01P1/203 ,  H05K1/02 ,  H05K3/00

CPC classification number: H05K1/0233 ,  G11C5/04 ,  H01P1/203 ,  H03H7/38 ,  H05K3/0005 ,  H05K2201/10159

Abstract: One aspect provides a printed circuit board (PCB). The PCB includes a transmission line to transmit signals of a desired frequency, a first stub coupled to the transmission line at a first location, and a second stub coupled to the transmission line at a second location. The first stub is to filter out signals of a first frequency, the second stub is to filter out signals of a second frequency, and the first and second stubs are positioned such that an insertion loss of the transmitted signals of the desired frequency is substantially minimized.

公开(公告)号：US11810689B2

公开(公告)日：2023-11-07

申请号：US17068344

申请日：2020-10-12

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Karl J. Bois ,  James David Stewart ,  David P. Kopp ,  Elene Chobanyan

IPC: H01B11/06 ,  H01B11/18 ,  H01P3/06 ,  H01B13/016 ,  H01R12/75 ,  H01R12/72

CPC classification number: H01B11/1808 ,  H01B11/1856 ,  H01B13/0167 ,  H01P3/06 ,  H01R12/722 ,  H01R12/75

Abstract: A signal cable for an AC-coupled link, may include: a signal conductor; a dielectric surrounding the signal conductor; and a ground sheath having a conductive layer disposed at least partially around the conductor such that the dielectric is positioned between the ground sheath and the signal conductor, wherein the conductive layer comprises a first portion extending in a first direction along the cable and a second portion extending in a second direction, opposite the first direction, along the cable and further wherein the first and second portions of the conductive layer are separated from each other by a gap, the gap being dimensioned to provide a determined amount of capacitance in series in the ground sheath. The gap may form a complete separation between the first and second portions of the conductive layer.

公开(公告)号：US20240055157A1

公开(公告)日：2024-02-15

申请号：US18491907

申请日：2023-10-23

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Karl J. Bois ,  James David Stewart ,  David P. Kopp ,  Elene Chobanyan

IPC: H01B11/18 ,  H01P3/06 ,  H01B13/016

CPC classification number: H01B11/1808 ,  H01B11/1856 ,  H01P3/06 ,  H01B13/0167 ,  H01R12/75

Abstract: A signal cable for an AC-coupled link, may include: a signal conductor; a dielectric surrounding the signal conductor; and a ground sheath having a conductive layer disposed at least partially around the conductor such that the dielectric is positioned between the ground sheath and the signal conductor, wherein the conductive layer comprises a first portion extending in a first direction along the cable and a second portion extending in a second direction, opposite the first direction, along the cable and further wherein the first and second portions of the conductive layer are separated from each other by a gap, the gap being dimensioned to provide a determined amount of capacitance in series in the ground sheath. The gap may form a complete separation between the first and second portions of the conductive layer.

公开(公告)号：US20220418093A1

公开(公告)日：2022-12-29

申请号：US17362734

申请日：2021-06-29

Applicant: Hewlett Packard Enterprise Development LP

Inventor： David P. Kopp ,  Karl J. Bois ,  Steven J. Martin

IPC: H05K1/02 ,  G11C5/04 ,  H05K3/00

Abstract: One aspect provides a printed circuit board (PCB). The PCB includes a transmission line to transmit signals of a desired frequency, a first stub coupled to the transmission line at a first location, and a second stub coupled to the transmission line at a second location. The first stub is to filter out signals of a first frequency, the second stub is to filter out signals of a second frequency, and the first and second stubs are positioned such that an insertion loss of the transmitted signals of the desired frequency is substantially minimized.

公开(公告)号：US09712263B1

公开(公告)日：2017-07-18

申请号：US15254098

申请日：2016-09-01

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Karl J. Bois ,  Benjamin Toby ,  David P. Kopp

IPC: H04L1/20 ,  H04B17/336 ,  H04L12/26

CPC classification number: H04B17/336 ,  H04B17/318 ,  H04L1/203 ,  H04L1/242

Abstract: An example communications device may include a slicer that may generate a digital output signal by thresholding a received signal according to variably set timing and voltage parameters. Testing circuitry may determine expected bit error ratios for multiple time-voltage slices by performing test operations corresponding respectively to the multiple time-voltage slices. Each of the test operations may include setting the timing and voltage parameters of the slicer based on the corresponding time-voltage slice, periodically measuring a bit error ratio based on the digital output signal and determining a confidence level for the measured bit error ratio, and in response to the determined confidence level equaling or exceeding a specified value, designating a current value of the measured bit-error ratio as the expected bit error ratio for the corresponding time-voltage slice and ending the test operation.