公开(公告)号：US20220376795A1

公开(公告)日：2022-11-24

申请号：US17303184

申请日：2021-05-24

Applicant: Hewlett Packard Enterprise Development LP

Inventor： James Donald Regan ,  Mauricio Madiedo ,  David Ritter Thomas

IPC: H04B10/50 ,  H04B10/572

Abstract: According to an example, a transmitter transmits a plurality of optical signals of multiple wavelengths via an optical link to a receiver. An optical link tuner coupled to the optical link groups the plurality of optical signals into a first group of optical signals and a second group of optical signals, where the first group of optical signals has a first wavelength range and the second group of optical signals has a second wavelength range. The optical link tuner adjusts link tuning parameters associated with the first group of optical signals during a first phase, such that the second group of optical signals is propagated to the receiver without modifications to link tuning parameters associated with the second group, where during the first phase the receiver is to detect unplugging of the optical link based on the second group of optical signals.

公开(公告)号：US11558119B2

公开(公告)日：2023-01-17

申请号：US17303184

申请日：2021-05-24

Applicant: Hewlett Packard Enterprise Development LP

Inventor： James Donald Regan ,  Mauricio Madiedo ,  David Ritter Thomas

IPC: H04B10/12 ,  H04B10/50 ,  H04B10/572

Abstract: According to an example, a transmitter transmits a plurality of optical signals of multiple wavelengths via an optical link to a receiver. An optical link tuner coupled to the optical link groups the plurality of optical signals into a first group of optical signals and a second group of optical signals, where the first group of optical signals has a first wavelength range and the second group of optical signals has a second wavelength range. The optical link tuner adjusts link tuning parameters associated with the first group of optical signals during a first phase, such that the second group of optical signals is propagated to the receiver without modifications to link tuning parameters associated with the second group, where during the first phase the receiver is to detect unplugging of the optical link based on the second group of optical signals.

公开(公告)号：US11424859B2

公开(公告)日：2022-08-23

申请号：US17071843

申请日：2020-10-15

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Christopher Michael Brueggen ,  James Donald Regan ,  Elene Chobanyan

IPC: H04L1/00 ,  H03M13/09 ,  H03M13/11

Abstract: Systems and methods are provided for implementing forward error correction (FEC) on data transferred on a data link on the physical layer. Binary encoding can be done in accordance with a physical unit (phit) FEC format. The phit FEC format allows for correction of two bit errors and comprises a codeword having a variable bit size. Pre-coding the phit enables burst errors associated with the link to converted into bit errors. The data can be transmitted in the phit FEC format to a receiving PHY. The correctable two bit errors at one or more locations within the phit FEC format can then be corrected by decoding at the receiving PHY in accordance with the phit FEC. The FEC techniques can minimize latency in the PHY.