公开(公告)号：US11923678B2

公开(公告)日：2024-03-05

申请号：US17562444

申请日：2021-12-27

Applicant: Cisco Technology, Inc.

Inventor： Jason DeWayne Potterf ,  Chad M. Jones ,  Joel Richard Goergen

IPC: H02H7/26 ,  G01R31/52 ,  G06F1/26 ,  H04B3/54 ,  H04L12/10 ,  H04L25/08

CPC classification number: H02H7/26 ,  G01R31/52 ,  G06F1/266 ,  H04B3/54 ,  H04L12/10 ,  H04L25/08

Abstract: Presented herein are techniques for power fault management that operates without power-source-side switching. A power transmitter is configured to provide power to a current loop, and a power receiver is configured to receive the power from the current loop. The power receiver is configured to, on a periodic basis, disconnect from the current loop to stop pulling power from current loop for a period of time to enable a safety check to be performed by the power transmitter. The power transmitter is configured to monitor current on the current loop, determine whether the current level on the current loop passes the safety check within a predetermined time interval since a determination that the current level was not within a safe range, and control connectivity of the power to the current loop based on whether the safety check has or has not passed within the predetermined time interval.

公开(公告)号：US20240073046A1

公开(公告)日：2024-02-29

申请号：US18489319

申请日：2023-10-18

Applicant: Cisco Technology, Inc.

Inventor： Joel Richard Goergen ,  Chad M. Jones ,  Charles Lacey Compton, III

IPC: H04L12/10 ,  G06F1/26 ,  G06F1/28 ,  G06F1/30 ,  G06F1/3212 ,  H04L12/40

CPC classification number: H04L12/10 ,  G06F1/266 ,  G06F1/28 ,  G06F1/30 ,  G06F1/3212 ,  H04L12/40045

Abstract: A system includes a plurality of network devices comprising a plurality of ports, a power bus connecting the network devices, wherein power is shared between the network devices over the power bus, and a controller for identifying available power and allocating power to the ports. The ports include a plurality of PSE (Power Sourcing Equipment) PoE (Power over Ethernet) ports each operable to transmit power to a device connected to one of the PSE PoE ports, a plurality of PD (Powered Device) PoE ports each operable to receive power from a device connected to one of the PD PoE ports, and a plurality of bi-directional PoE ports each configurable to operate as a PSE PoE port to transmit power to a device connected to one of the bi-directional PoE ports or as a PD PoE port to receive power from the connected device.

公开(公告)号：US11916374B2

公开(公告)日：2024-02-27

申请号：US17562464

申请日：2021-12-27

Applicant: Cisco Technology, Inc.

Inventor： Jason Dewayne Potterf ,  Chad M. Jones ,  Joel Richard Goergen

IPC: H02H7/26 ,  G01R31/52 ,  G06F1/26 ,  H04B3/54 ,  H04L12/10 ,  H04L25/08

CPC classification number: H02H7/26 ,  G01R31/52 ,  G06F1/266 ,  H04B3/54 ,  H04L12/10 ,  H04L25/08

Abstract: A system is provided that includes a power transmitter configured to provide power to a current loop, a power receiver configured to receive the power from the current loop. The power receiver is configured to, on a periodic basis, disconnect from the current loop to stop pulling power from the current loop for a period of time to enable a safety check to be performed by the power transmitter. The power transmitter is configured to: monitor current on the current loop; determine whether a current level on the current loop passes the safety check within a predetermined time interval since a determination that the current level was not within a safe range; and control connectivity of the power to the current loop depending on whether the safety check has or has not passed within the predetermined time interval.

公开(公告)号：US11782491B2

公开(公告)日：2023-10-10

申请号：US17705797

申请日：2022-03-28

Applicant: Cisco Technology, Inc.

Inventor： Joel Richard Goergen ,  Chad M. Jones ,  Dylan T. Walker

IPC: G06F1/00 ,  G06F1/26 ,  H04L12/40 ,  H04L12/10

CPC classification number: G06F1/266 ,  H04L12/10 ,  H04L12/40032 ,  H04L12/40045

Abstract: A method is provided that includes grouping a plurality of ports at power sourcing equipment receiving pulse power and transmitting power from the group of ports at the power sourcing equipment to a power interface module operable to combine the power and provide an AC (alternating current) outlet configured to provide AC power to one or more devices.

公开(公告)号：US11708002B2

公开(公告)日：2023-07-25

申请号：US16983853

申请日：2020-08-03

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Joel Richard Goergen ,  Kameron Rose Hurst ,  Sean Ceballos-McGee ,  Anant Thakar ,  Robert Gregory Twiss ,  Ronald Lee Shaffer, II ,  Jared Pendleton ,  Chad M. Jones

IPC: B60L53/65 ,  G06F21/44 ,  B60L53/66 ,  H04L12/10 ,  H02J7/00 ,  H04L67/10

CPC classification number: B60L53/65 ,  B60L53/66 ,  G06F21/44 ,  H02J7/0029 ,  H02J7/00045 ,  H04L12/10 ,  H04L67/10

Abstract: In one embodiment, an electric vehicle system includes a power system for charging a battery installed in an electric vehicle and comprising a bi-directional power and data connector for receiving power and data from or transmitting the power and data to an electric vehicle charging device, a communications system comprising a server and configured for receiving power from the power system and receiving data from or transmitting the data to the power system for download or upload at the electric vehicle charging device, and an authentication module for authenticating the electric vehicle charging device. A method is also disclosed herein.

公开(公告)号：US20230223988A1

公开(公告)日：2023-07-13

申请号：US18187006

申请日：2023-03-21

Applicant: Cisco Technology, Inc.

Inventor： Douglas Paul Arduini ,  Ruqi Li ,  Chad M. Jones ,  Sung Kee Baek ,  Jason DeWayne Potterf ,  Joel Richard Goergen

IPC: G06F1/30

CPC classification number: G06F1/305

Abstract: Techniques are provided for detecting a fault across a pair of lines. Pulse power is applied across the pair of lines. The pulse power comprises alternating pulse on-time intervals and pulse off-time intervals. During a pulse off-time interval, a resistor is connected across the pair of lines and then disconnected when a voltage across the pair of lines reaches a first droop percentage in a first period of time. After disconnecting the resistor, it is determined whether the voltage across the pair of lines droops at least a second droop percentage within a second period of time that begins after the first period of time. Occurrence of a line-to-line fault across the pair of lines is determined when the voltage across the pair of lines droops by at least the second droop percentage or more within the second period of time.

公开(公告)号：US11519789B2

公开(公告)日：2022-12-06

申请号：US17022685

申请日：2020-09-16

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Christopher Daniel Bullock ,  Dylan T. Walker ,  Chad M. Jones ,  Joel Richard Goergen

IPC: G01K3/00 ,  G01K13/00 ,  H04L12/10 ,  H04L12/40 ,  G06F30/20

Abstract: In one embodiment, a method includes receiving at a thermal modeling module, data from a Power Sourcing Equipment device (PSE) for cables extending from the PSE to Powered Devices (PDs), the cables configured to transmit power and data from the PSE to the PDs, calculating at the thermal modeling module, thermal characteristics for the cables based on the data, and identifying a thermal rise above a specified threshold at one of the cables. The data comprises real-time electrical data for the cables. An apparatus and logic are also disclosed herein.

公开(公告)号：US20220385334A1

公开(公告)日：2022-12-01

申请号：US17884124

申请日：2022-08-09

Applicant: Cisco Technology, Inc.

Inventor： Chad M. Jones ,  Joel Richard Goergen ,  George Allan Zimmerman ,  Richard Anthony O'Brien ,  Douglas Paul Arduini ,  Jason DeWayne Potterf ,  Sung Kee Baek

IPC: H04B3/54 ,  H04L12/10 ,  H03M13/37

Abstract: In one embodiment, a method includes transmitting pulse power on two wire pairs, the pulse power comprising a plurality of high voltage pulses with the high voltage pulses on the wire pairs offset between the wire pairs to provide continuous power, performing low voltage fault detection on each of the wire pairs between the high voltage pulses, and transmitting data on at least one of the wire pairs during transmittal of the high voltage pulses. Data transmittal is suspended during the low voltage fault detection.

公开(公告)号：US11438183B2

公开(公告)日：2022-09-06

申请号：US16912563

申请日：2020-06-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Joel Richard Goergen ,  Chad M. Jones ,  Jessica Kiefer ,  Douglas Paul Arduini

IPC: H04L12/10 ,  H04L12/28 ,  G06F1/20 ,  G06F1/26

Abstract: In one embodiment, an apparatus includes a power adapter configured for direct connection to a Power Supply Unit (PSU) installed in a network device, the power adapter comprising a power input port for receiving power on an Ethernet cable, a power converter module for converting the power received at the power input port to a PSU input power, and a power output connector for connection with a PSU power input connector.

公开(公告)号：US20220038189A1

公开(公告)日：2022-02-03

申请号：US17502848

申请日：2021-10-15

Applicant: Cisco Technology, Inc.

Inventor： Joel Richard Goergen ,  Charles Calvin Byers ,  Robert Gregory Twiss ,  D. Brice Achkir ,  Chad M. Jones

IPC: H04B10/80 ,  G02B6/42 ,  H04L12/40 ,  H04M19/08 ,  H04L12/12 ,  H04L12/10 ,  H02J50/80 ,  H02J50/30

Abstract: In one embodiment, a method includes receiving power delivered over a data fiber cable at an optical transceiver installed at a network communications device and transmitting data and the power from the optical transceiver to the network communications device. The network communications device is powered by the power received from the optical transceiver. An apparatus is also disclosed herein.