Patent · US Active

Adaptive pre-equalization in optical communications

US9912500B2 · kind B2 · utility

4Cited by

6References

15Claims

0Family size

Assignee

ZTE CORPORATION · CN

Inventors

Jianjun Yu · Princeton, US
Hung-Chang Chien · Rockaway, US
Junwen Zhang · Shanghai, CN

Key dates

Filing date	Oct 31, 2014
Grant date	Mar 6, 2018
Priority date	—
Expiry date	Oct 31, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04L7/0075
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

The filter estimate produced by post-equalization processing of an optical signal at a receiver is used to generate pre-equalizer filter coefficients that are communicated back to the source of the optical signal for performing pre-equalization. In one advantageous aspect, the already existing post-equalization modules of an optical receive equipment can thus be used to produce, in addition, a pre-equalizer filter for use by the source side.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.