公开(公告)号：US20220158738A1

公开(公告)日：2022-05-19

申请号：US17588986

申请日：2022-01-31

Applicant: Cisco Technology, Inc.

Inventor： Jianquan Lou ,  Alpesh Umakant Bhobe ,  Hailong Zhang ,  Xiao Li ,  Guangcao Fu

IPC: H04B10/50 ,  H04L7/00

Abstract: A method in which a plurality of transmit signals are generated at data rates that are offset from each other to minimize detectable electromagnetic interference at a particular frequency. The method further includes converting each transmit signal to a corresponding optical transmit signal of a plurality of optical transmit signals for transmission via a corresponding channel of a plurality of channels of an optical network device and transmitting the plurality of optical transmit signals via respective ones of the plurality of channels for transmission on respective optical fibers.

公开(公告)号：US11057987B2

公开(公告)日：2021-07-06

申请号：US16276073

申请日：2019-02-14

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Jianquan Lou ,  Alpesh U. Bhobe ,  Juhi Garg ,  Joel Richard Goergen

IPC: H05K1/02 ,  H01P3/08 ,  H01P1/02

Abstract: In one embodiment, a method includes positioning a first component for generating a differential signal on a printed circuit board, positioning a second component for receiving the differential signal on a printed circuit board, and routing a differential conductor pair on a path between the first component and the second component, wherein the path comprises at least one turn in which the differential conductor pair changes direction. A first conductor and a second conductor of the differential conductor pair each comprise a plurality of sets of bends proximate to the turn to provide skew compensation while reducing differential mode to common mode conversion and wherein each of the sets of bends in the second conductor is aligned with one of the sets of bends in the first conductor.

公开(公告)号：US10971299B2

公开(公告)日：2021-04-06

申请号：US15818950

申请日：2017-11-21

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Jianquan Lou ,  Xiaoxia Zhou ,  Hailong Zhang ,  Yingchun Shu ,  Alpesh U. Bhobe

IPC: H01F27/28 ,  H01F27/34 ,  H01F27/24 ,  H01R24/64 ,  H01F27/29 ,  H01R13/719 ,  H01F27/02 ,  H01R107/00 ,  H01R25/00 ,  H01R13/6461 ,  H01F17/06 ,  H01R13/66

Abstract: In one embodiment, an apparatus includes a plurality of transformers and a plurality of common mode chokes, each of the transformers and the common mode chokes comprising a magnetic core and windings wound around the magnetic core at generally opposite sides thereof. The transformers and common mode chokes are arranged in an array with the windings on each of the magnetic cores positioned generally orthogonal to the windings of adjacent magnetic cores in the array to reduce crosstalk and improve common mode noise rejection.

公开(公告)号：US20200267833A1

公开(公告)日：2020-08-20

申请号：US16276073

申请日：2019-02-14

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Jianquan Lou ,  Alpesh U. Bhobe ,  Juhi Garg ,  Joel Richard Goergen

IPC: H05K1/02 ,  H01P3/08

Abstract: In one embodiment, a method includes positioning a first component for generating a differential signal on a printed circuit board, positioning a second component for receiving the differential signal on a printed circuit board, and routing a differential conductor pair on a path between the first component and the second component, wherein the path comprises at least one turn in which the differential conductor pair changes direction. A first conductor and a second conductor of the differential conductor pair each comprise a plurality of sets of bends proximate to the turn to provide skew compensation while reducing differential mode to common mode conversion and wherein each of the sets of bends in the second conductor is aligned with one of the sets of bends in the first conductor.

公开(公告)号：US20190156993A1

公开(公告)日：2019-05-23

申请号：US15818950

申请日：2017-11-21

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Jianquan Lou ,  Xiaoxia Zhou ,  Hailong Zhang ,  Yingchun Shu ,  Alpesh U. Bhobe

IPC: H01F27/34 ,  H01F27/28 ,  H01F27/24 ,  H01F27/29 ,  H01R25/00 ,  H01R24/64

Abstract: In one embodiment, an apparatus includes a plurality of transformers and a plurality of common mode chokes, each of the transformers and the common mode chokes comprising a magnetic core and windings wound around the magnetic core at generally opposite sides thereof. The transformers and common mode chokes are arranged in an array with the windings on each of the magnetic cores positioned generally orthogonal to the windings of adjacent magnetic cores in the array to reduce crosstalk and improve common mode noise rejection.

公开(公告)号：US09980417B1

公开(公告)日：2018-05-22

申请号：US15402405

申请日：2017-01-10

Applicant: Cisco Technology, Inc.

Inventor： Feng Ji ,  Jianquan Lou ,  Chen Peng ,  Alpesh U. Bhobe ,  Yingchun Shu ,  Jinghan Yu ,  Li Xiaogang

IPC: H05K9/00

CPC classification number: H05K9/0015

Abstract: An electromagnetic interference (EMI) gasket is provided that includes a resiliently-flexible and conductive outer shell, a cushioning element disposed in the outer shell, and at least one magnetic component disposed in the outer shell configured to magnetically couple to a conductive surface of an electronic device chassis.