公开(公告)号：US20250097060A1

公开(公告)日：2025-03-20

申请号：US18961781

申请日：2024-11-27

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: H04L12/10 ,  H03M13/03 ,  H03M13/15 ,  H03M13/37 ,  H04B3/54 ,  H04L41/12 ,  H04W80/02

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：US20240421915A1

公开(公告)日：2024-12-19

申请号：US18819359

申请日：2024-08-29

Applicant: Cisco Technology, Inc.

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

IPC: H04B10/80 ,  G01J3/02 ,  G02B6/38 ,  G02B6/42 ,  H02J50/30 ,  H02J50/80 ,  H02S40/38 ,  H04L12/10 ,  H04L12/12 ,  H04L12/40 ,  H04M19/08

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.

公开(公告)号：US12126399B2

公开(公告)日：2024-10-22

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: H04B3/54 ,  G01R31/08 ,  G01R31/50 ,  G05B9/02 ,  G06F1/30 ,  H02J13/00 ,  H04L12/10 ,  H04L12/40

CPC classification number: H04B3/54 ,  G01R31/083 ,  G01R31/50 ,  G05B9/02 ,  G06F1/305 ,  H02J13/00 ,  H02J13/00032 ,  H04L12/10 ,  H04L12/40045

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：US12113588B2

公开(公告)日：2024-10-08

申请号：US17171723

申请日：2021-02-09

Applicant: CISCO TECHNOLOGY, INC.

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

IPC: H04B3/54 ,  G01R31/08 ,  G01R31/50 ,  G05B9/02 ,  G06F1/30 ,  H02J13/00 ,  H04L12/10 ,  H04L12/40

CPC classification number: H04B3/54 ,  G01R31/083 ,  G01R31/50 ,  G05B9/02 ,  G06F1/305 ,  H02J13/00 ,  H02J13/00032 ,  H04L12/10 ,  H04L12/40045

Abstract: In one embodiment, a method includes receiving low voltage pulse power from power sourcing equipment at a powered device, synchronizing the powered device with a waveform of the low voltage pulse power received from the power sourcing equipment, and operating the powered device with high voltage pulse power received from the power sourcing equipment.

公开(公告)号：US12099376B2

公开(公告)日：2024-09-24

申请号：US17988375

申请日：2022-11-16

Applicant: Cisco Technology, Inc.

Inventor： Joel Richard Goergen ,  Chad M. Jones ,  Emanuele Umberto Giacometti

IPC: G05F1/577 ,  G06F21/44 ,  H04L12/10

CPC classification number: G05F1/577 ,  G06F21/44 ,  H04L12/10

Abstract: In one or more embodiments, a T-adapter includes an input for receiving power and data on a wire pair, a first output for transmitting the power and data to a first load, a second output for transmitting the power and data to a second load, and a controller operable to detect and authenticate the first load at the first output or the second load at the second output and enable power at the first output or the second output in response to load detection and authentication.

公开(公告)号：US20240168533A1

公开(公告)日：2024-05-23

申请号：US17993323

申请日：2022-11-23

Applicant: Cisco Technology, Inc.

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

IPC: G06F1/30 ,  G06F1/3206 ,  G06F1/3296

CPC classification number: G06F1/30 ,  G06F1/3206 ,  G06F1/3296

Abstract: Techniques are provided to synchronize a remote power switch at a power receiver end of a power cable with a first power switch operation at a power source end of the cable, without any physical or data communication means for synchronization. This process may involve synchronization of a MOSFET-type switch with voltage pulsing at the power source cable end to a MOSFET-type isolation switch at the power receiver cable end to provide (voltage or load) power during the On-time and safety testing for a shock hazard during the Off-time. This method synchronizes switching pulses by sensing and synchronizing on the cable switching voltage transients from the source side. This method also involves blanking the additional switching voltage transients on the cable generated after the synchronized switching begins to maintain proper synchronization. These techniques may be used for a single-pair pulse power cable or with multi-pair multi-phase pulse power cables.

公开(公告)号：US20240113625A1

公开(公告)日：2024-04-04

申请号：US18537915

申请日：2023-12-13

Applicant: Cisco Technology, Inc.

Inventor： Richard Anthony O'Brien ,  Joel Richard Goergen ,  Chad M. Jones ,  Jason DeWayne Potterf ,  George Allan Zimmerman

IPC: H02M3/158 ,  G06F1/18 ,  H02J1/10

CPC classification number: H02M3/1584 ,  G06F1/18 ,  H02J1/106 ,  H02M3/1586

Abstract: In one embodiment, a method includes transmitting multi-phase pulse power from power sourcing equipment to a powered device in a data center, wherein the multi-phase pulse power comprises multiple phases of power delivered in a sequence of pulses defined by alternating low direct current voltage states and high direct current voltage states, and synchronizing the pulses at the power sourcing equipment with the pulses at the powered device.

公开(公告)号：US11909320B2

公开(公告)日：2024-02-20

申请号：US18166159

申请日：2023-02-08

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Richard Anthony O'Brien ,  Joel Richard Goergen ,  Chad M. Jones ,  Jason DeWayne Potterf ,  George Allan Zimmerman

IPC: H02M3/158 ,  H02J1/10 ,  G06F1/18

CPC classification number: H02M3/1584 ,  G06F1/18 ,  H02J1/106 ,  H02M3/1586

Abstract: In one embodiment, a method includes transmitting multi-phase pulse power from power sourcing equipment to a powered device in a data center, wherein the multi-phase pulse power comprises multiple phases of power delivered in a sequence of pulses defined by alternating low direct current voltage states and high direct current voltage states, and synchronizing the pulses at the power sourcing equipment with the pulses at the powered device.

公开(公告)号：US11770007B2

公开(公告)日：2023-09-26

申请号：US17963475

申请日：2022-10-11

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Joel Richard Goergen ,  Chad M. Jones

IPC: H02J3/38 ,  H02J13/00 ,  H04L12/10 ,  H02J3/32

CPC classification number: H02J3/381 ,  H02J13/00002 ,  H02J13/0004 ,  H04L12/10 ,  H02J3/32 ,  H02J2300/24 ,  H02J2300/28

Abstract: In one embodiment, a power system includes a power panel operable to distribute alternating current (AC) power and pulse power to a plurality of power outlets and having an AC circuit breaker and a pulse power circuit breaker, the pulse power comprising a sequence of pulses alternating between a low direct current (DC) voltage state and a high DC voltage state, a power inverter and converter coupled to the power panel through an AC power connection and a pulse power connection and including a DC power input for receiving DC power from a renewable energy source, an AC power input for receiving AC power, and a connection to an energy storage device, and a power controller in communication with the power inverter and converter and operable to balance power load and allocate power received at the DC power input and the AC power input to the power panel.

公开(公告)号：US20230213992A1

公开(公告)日：2023-07-06

申请号：US18175668

申请日：2023-02-28

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Chad M. Jones ,  Joel Richard Goergen ,  George Allan Zimmerman

IPC: G06F1/26 ,  H03M13/15 ,  H04L1/00 ,  H04L12/10

CPC classification number: G06F1/266 ,  H03M13/154 ,  H04L1/0057 ,  H04L12/10

Abstract: In one embodiment, a method includes applying Forward Error Correction (FEC) to data at power sourcing equipment, transmitting the data and pulse power over a wire pair to a powered device, identifying data transmitted during power transitions between a pulse power on time and a pulse power off time in the pulse power at the powered device, and applying FEC decoding to at least a portion of the data based on said identified power transitions.