公开(公告)号：US10797893B2

公开(公告)日：2020-10-06

申请号：US16219810

申请日：2018-12-13

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Amrik S. Bains ,  Kenneth Christian Naumann

IPC: G06F13/42 ,  H04L12/10 ,  G06F13/16 ,  H04L5/14

Abstract: In one embodiment, a method includes detecting a slave device at a master device, determining at the master device if the slave device is configured for I2C (Inter-Integrated Circuit) or SPE (Single Pair Ethernet) based on an output at the slave device, and selecting an I2C mode of operation at the master device if the slave device is configured for I2C, or selecting an SPE mode of operation at the master device if the slave device is configured for SPE. Data and control are selected from an I2C controller at the master device in the I2C mode of operation and selected from a physical coding sublayer at the master device in the SPE mode of operation.

公开(公告)号：US20200235780A1

公开(公告)日：2020-07-23

申请号：US16254263

申请日：2019-01-22

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Amrik S. Bains ,  Kenneth Christian Naumann

IPC: H04B3/32 ,  H04L12/10 ,  H04B3/23

Abstract: In one embodiment, an apparatus includes four independent single pair Ethernet ports coupled to a cable comprising four wire pairs for communication with a micro-switch, the micro-switch configured for communication with four endpoint devices, each of the endpoint devices in communication with the micro-switch over a single pair Ethernet cable comprising one of the four wire pairs. Each of the four independent single pair Ethernet ports comprises an echo canceller for receiving input from a transmitter at one of the independent single pair Ethernet ports and each of the other independent single pair Ethernet ports to cancel alien crosstalk between the four wire pairs.

公开(公告)号：US09843492B2

公开(公告)日：2017-12-12

申请号：US14686955

申请日：2015-04-15

Applicant: Cisco Technology, Inc.

Inventor： Amrik Singh Bains ,  Kenneth Christian Naumann ,  Samir Bouadjel

IPC: H04L12/26 ,  G06F11/07 ,  H03M13/11 ,  H04L1/00 ,  H04B3/487 ,  H04L25/03

CPC classification number: H04L43/0841 ,  G06F11/0709 ,  G06F11/076 ,  H03M13/1102 ,  H04B3/487 ,  H04L1/0001 ,  H04L25/03006 ,  H04L25/03057

Abstract: Methods and systems are disclosed which can perform cable characterization at link-up and during in-service monitoring to provide the best data throughput. In some embodiments a plurality of frequency tones may be sent across a cable to a remote system. A plurality of return loss values associated with sending the plurality of frequency tones may then be measured and stored. Next, a crosstalk value across the cable may be computed. A quality value for the cable may then be determined based on at least the plurality of return loss values and the crosstalk value.

公开(公告)号：US10812137B2

公开(公告)日：2020-10-20

申请号：US16254263

申请日：2019-01-22

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Amrik S. Bains ,  Kenneth Christian Naumann

IPC: H04B3/32 ,  H04B3/23 ,  H04L12/10

Abstract: In one embodiment, an apparatus includes four independent single pair Ethernet ports coupled to a cable comprising four wire pairs for communication with a micro-switch, the micro-switch configured for communication with four endpoint devices, each of the endpoint devices in communication with the micro-switch over a single pair Ethernet cable comprising one of the four wire pairs. Each of the four independent single pair Ethernet ports comprises an echo canceller for receiving input from a transmitter at one of the independent single pair Ethernet ports and each of the other independent single pair Ethernet ports to cancel alien crosstalk between the four wire pairs.

公开(公告)号：US20160308742A1

公开(公告)日：2016-10-20

申请号：US14686955

申请日：2015-04-15

Applicant: Cisco Technology, Inc.

Inventor： Amrik Singh Bains ,  Kenneth Christian Naumann ,  Samir Bouadjel

IPC: H04L12/26 ,  G06F11/07 ,  H03M13/11 ,  H04B3/487 ,  H04L25/03

CPC classification number: H04L43/0841 ,  G06F11/0709 ,  G06F11/076 ,  H03M13/1102 ,  H04B3/487 ,  H04L1/0001 ,  H04L25/03006 ,  H04L25/03057

Abstract: Methods and systems are disclosed which can perform cable characterization at link-up and during in-service monitoring to provide the best data throughput. In some embodiments a plurality of frequency tones may be sent across a cable to a remote system. A plurality of return loss values associated with sending the plurality of frequency tones may then be measured and stored. Next, a crosstalk value across the cable may be computed. A quality value for the cable may then be determined based on at least the plurality of return loss values and the crosstalk value.

Abstract translation: 公开了可以在链接和在使用期间进行电缆表征以提供最佳数据吞吐量的方法和系统。 在一些实施例中，可以通过电缆将多个频率音调发送到远程系统。 然后可以测量和存储与发送多个频率音调相关联的多个返回损耗值。 接下来，可以计算跨电缆的串扰值。 然后可以至少基于多个返回损失值和串扰值来确定电缆的质量值。