公开(公告)号：US11444791B2

公开(公告)日：2022-09-13

申请号：US16999754

申请日：2020-08-21

申请人： CISCO TECHNOLOGY, INC.

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

IPC分类号： H03M13/00 ,  H04L12/10 ,  H03M13/03 ,  H04B3/54 ,  H04L41/12 ,  H04W80/02

摘要： 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：US11990952B2

公开(公告)日：2024-05-21

申请号：US18186301

申请日：2023-03-20

申请人： Cisco Technology, Inc.

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

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

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

摘要： 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：US11916374B2

公开(公告)日：2024-02-27

申请号：US17562464

申请日：2021-12-27

申请人： Cisco Technology, Inc.

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

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

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

摘要： 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.