公开(公告)号：US11425821B2

公开(公告)日：2022-08-23

申请号：US16547639

申请日：2019-08-22

Applicant: Cisco Technology, Inc.

Inventor： Amendra Koul ,  Mike Sapozhnikov ,  David Nozadze ,  Joel Goergen

IPC: H05K3/00 ,  H05K1/18 ,  H05K1/02 ,  G06F30/367 ,  G06F30/392 ,  G01R31/28

Abstract: A printed circuit board (PCB) includes a plurality of layers disposed at different depths of the PCB, circuit components disposed at different layers of the PCB, and a plurality of temperature measurement sensors located at one or more layers of the PCB, where each temperature measurement sensor is associated with a corresponding circuit component. A measured temperature is obtained at an embedded temperature measurement sensor located at an embedded layer within the PCB, and the measured temperature is correlated with an electrical property of an embedded circuit component located at the same embedded layer within the PCB as the embedded temperature measurement sensor. A plurality of moisture measurement sensors can also be located at one or more layers of the PCB to facilitate a measured moisture with an electrical property of an embedded circuit component.

公开(公告)号：US20220217837A1

公开(公告)日：2022-07-07

申请号：US17703051

申请日：2022-03-24

Applicant: Cisco Technology, Inc.

Inventor： Joel Goergen ,  Scott Hinaga ,  Jessica Kiefer ,  Alpesh Umakant Bhobe ,  D. Brice Achkir ,  David Nozadze ,  Amendra Koul ,  Mehmet Onder Cap ,  Madeline Marie Roemer

IPC: H05K1/02

Abstract: A conductive signal transmission structure for an electronic device (e.g., a printed circuit board of an electronic device) includes a copper material and a graphene layer disposed within the copper material at a depth below a surface of the structure. The depth of the graphene layer is further within a skin depth region of the structure when a transmission signal applied to the conductive signal transmission structure has a signal speed of at least 112 Gbps.

公开(公告)号：US11342762B2

公开(公告)日：2022-05-24

申请号：US17097611

申请日：2020-11-13

Applicant: Cisco Technology, Inc.

Inventor： Xiqun Zhu ,  Sung Kee Baek ,  Wingo Cheong ,  Steven Anthony Granzella ,  Joel Goergen ,  Charles Calvin Byers

IPC: H02J7/00

Abstract: In one embodiment, a battery backup unit (BBU) cut-off and recharge circuit includes: a first transistor, a power entry connection connected to a main power supply, where power from the power entry connection flows to application circuits for an electronic device, and the first transistor is positioned between a BBU and the power entry connection, and a microcontroller, where the microcontroller is operative to: detect a loss of power from the main power supply, turn on the first transistor to enable the BBU to discharge through the power entry connection to application circuits, detect a status of charge (SOC) for the BBU, and upon detecting that the SOC is under a predefined threshold, set the BBU cut-off and recharge circuit to a lockdown state by turning off the first transistor.

公开(公告)号：US20220039257A1

公开(公告)日：2022-02-03

申请号：US17503690

申请日：2021-10-18

Applicant: Cisco Technology, Inc.

Inventor： Joel Goergen ,  Jessica Kiefer ,  Alpesh Umakant Bhobe ,  Kameron Rose Hurst ,  D. Brice Achkir ,  Amendra Koul ,  Scott Hinaga ,  David Nozadze

IPC: H05K1/09 ,  H05K3/46

Abstract: A structure includes a first copper layer and a first carbon layer applied directly to a surface of the first copper layer, a second copper layer and a second carbon layer applied directly to a surface of the second copper layer, and an insulating core disposed between the first and second copper layers. Each of the first carbon layer and the second carbon layer faces toward and directly contacts the insulating core. The structure provides electrical power to a component of an electronic device.

公开(公告)号：US11202368B2

公开(公告)日：2021-12-14

申请号：US17006016

申请日：2020-08-28

Applicant: Cisco Technology, Inc.

Inventor： Joel Goergen ,  Jessica Kiefer ,  Alpesh Umakant Bhobe ,  Kameron Rose Hurst ,  D. Brice Achkir ,  Amendra Koul ,  Scott Hinaga ,  David Nozadze

IPC: H05K3/46 ,  H05K1/09

Abstract: A power plane structure for a printed circuit board includes a copper layer, and a carbon layer applied directly to a surface of the copper layer. The carbon layer can include graphite or graphene. In additional embodiments, a duplicate power plane structure for a printed circuit board includes two power planes separated by an insulating core, each power plane including a copper layer and a carbon layer applied directly to a surface of the copper layer.

公开(公告)号：US20210059055A1

公开(公告)日：2021-02-25

申请号：US16547639

申请日：2019-08-22

Applicant: Cisco Technology, Inc.

Inventor： Amendra Koul ,  Mike Sapozhnikov ,  David Nozadze ,  Joel Goergen

IPC: H05K3/00 ,  H05K1/18 ,  H05K1/02 ,  G06F17/50 ,  G01R31/28

Abstract: A printed circuit board (PCB) includes a plurality of layers disposed at different depths of the PCB, circuit components disposed at different layers of the PCB, and a plurality of temperature measurement sensors located at one or more layers of the PCB, where each temperature measurement sensor is associated with a corresponding circuit component. A measured temperature is obtained at an embedded temperature measurement sensor located at an embedded layer within the PCB, and the measured temperature is correlated with an electrical property of an embedded circuit component located at the same embedded layer within the PCB as the embedded temperature measurement sensor. A plurality of moisture measurement sensors can also be located at one or more layers of the PCB to facilitate a measured moisture with an electrical property of an embedded circuit component.

公开(公告)号：US20190222035A1

公开(公告)日：2019-07-18

申请号：US15871999

申请日：2018-01-16

Applicant: Cisco Technology, Inc.

Inventor： Xiqun Zhu ,  Sung Kee Baek ,  Wingo Cheong ,  Steven Anthony Granzella ,  Joel Goergen ,  Charles Calvin Byers

IPC: H02J7/00

CPC classification number: H02J7/0021

Abstract: In one embodiment, a battery backup unit (BBU) cut-off and recharge circuit includes: a first transistor, a power entry connection connected to a main power supply, where power from the power entry connection flows to application circuits for an electronic device, and the first transistor is positioned between a BBU and the power entry connection, and a microcontroller, where the microcontroller is operative to: detect a loss of power from the main power supply, turn on the first transistor to enable the BBU to discharge through the power entry connection to application circuits, detect a status of charge (SOC) for the BBU, and upon detecting that the SOC is under a predefined threshold, set the BBU cut-off and recharge circuit to a lockdown state by turning off the first transistor.

公开(公告)号：US20170171116A1

公开(公告)日：2017-06-15

申请号：US15444610

申请日：2017-02-28

Applicant: Cisco Technology, Inc.

Inventor： Jianquan Lou ,  Ming Chi ,  Haibin Tang ,  Zhou Yang ,  Jinghan Yu ,  Qiuhua Zhu ,  Joel Goergen ,  Hugh Barrass

IPC: H04L12/861 ,  G06F1/32

CPC classification number: H04L49/9084 ,  G06F1/3206 ,  G06F1/3209 ,  G06F1/3225 ,  G06F1/3234 ,  G06F1/3275 ,  G06F1/3278 ,  G06F1/3287 ,  G06F9/5083 ,  H04L12/46 ,  H04L47/6215 ,  H04L49/90 ,  H04L67/10 ,  H04L2012/568 ,  Y02D10/14 ,  Y02D10/157 ,  Y02D10/171 ,  Y02D50/20

Abstract: In some implementations, a method includes analyzing an amount of data communicated by a set of network interfaces. The data communicated by the set of network interfaces is processed by a set of functional units and a set of queues includes the data communicated by the set of network interfaces. The method also includes activating a first functional unit of the set of functional units when a first size of a first queue of the set of queues is above a first threshold. The method further includes deactivating the first functional unit of the set of functional units when the first size of the first queue of the set of queues is below a second threshold. The method further includes causing the data to be forward to one or more active functional units via a data interconnect coupled to the set of network interfaces and the set of functional units.

公开(公告)号：US20140247710A1

公开(公告)日：2014-09-04

申请号：US13783381

申请日：2013-03-03

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Joel Goergen ,  Robert Curto ,  Jay Karthik ,  Andrew Naumov

IPC: H04L12/24

CPC classification number: H04L45/28 ,  H04L45/22 ,  H04L45/306 ,  H04W40/10

Abstract: A methodology is described such that when a brownout condition is being experienced by a network node, the network node may autonomously notify the adjacent nodes to reroute the traffic for different classes of service based on programmable low voltage thresholds. The present approach helps lower transit traffic disruption while providing a framework to give preferential treatment to high priority traffic traversing the node.

Abstract translation: 描述了一种方法，使得当网络节点遇到掉电状况时，网络节点可以基于可编程的低电压阈值自主地通知相邻节点来重新路由不同等级的业务。 目前的方法有助于降低过境流量中断，同时提供一个框架来优先处理穿过节点的高优先级流量。