公开(公告)号：US10720995B1

公开(公告)日：2020-07-21

申请号：US16547389

申请日：2019-08-21

Applicant: Cisco Technology, Inc.

Inventor： Marco Mazzini ,  Christopher R. S. Fludger ,  Alberto Cervasio ,  Matthew J. Traverso

IPC: H04B10/2507 ,  H04B10/524 ,  H04L25/49 ,  H04J14/02 ,  H04B1/04 ,  H04B10/2513 ,  H04B10/516 ,  H04B10/54 ,  H04B10/079

Abstract: The present disclosure provides signal management with unequal eye spacing by: sending, from a local transmitter, first and second signals with different first and second known eye patterns to a remote receiver over a channel; sending temperature data of the local transmitter and operating wavelength data of the first and second signals to the remote receiver over the channel; receiving, from the remote receiver, tuning parameters based on a dispersion of the channel based on a first difference between the first known eye pattern as transmitted and as received and a second difference between the second known eye pattern as transmitted and as received; and adjusting transmission rail values used to encode data for transmission over the channel by the local transmitter based on the tuning parameters to produce a conditioned signal for transmission with an unequally spaced eye pattern.

公开(公告)号：US11101890B2

公开(公告)日：2021-08-24

申请号：US16933837

申请日：2020-07-20

Applicant: Cisco Technology, Inc.

Inventor： Marco Mazzini ,  Christopher R. S. Fludger ,  Alberto Cervasio ,  Matthew J. Traverso

IPC: H04B10/2507 ,  H04B10/524 ,  H04L25/49 ,  H04J14/02 ,  H04B1/04 ,  H04B10/2513 ,  H04B10/516 ,  H04B10/54 ,  H04B10/079

Abstract: The present disclosure provides signal management with unequal eye spacing by: determining a dispersion slope of a channel between a transmitter and a receiver based on a temperature of the transmitter and a wavelength used by the transmitter to transmit signals over the channel; determining maximum and minimum powers for transmission over the channel; assigning a plurality of rails to a corresponding plurality of power levels, wherein amplitude differences between adjacent rails of the plurality of rails are based on the dispersion slope and produce a first eye pattern with a first Ratio of Level Mismatch (RLM) less than one; encoding, by the transmitter, data onto a conditioned signal according to the plurality of rails; and transmitting the conditioned signal over the channel, so that the conditioned signal demonstrates a second eye pattern with a second RLM greater than the first RLM when received at the receiver.