Patent · US Active

Precise time synchronization across optical modules for group alignment

US10396972B1 · kind B1 · utility

12Cited by
3References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 22, 2018
Grant dateAug 27, 2019
Priority date—
Expiry dateFeb 22, 2038

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04J2203/0085
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

An optical system supporting timing synchronization, alignment and deskewing across optical modules includes a plurality of optical devices each providing an Optical Tributary Signal (OTSi) which are part of an Optical Tributary Signal Group (OTSiG); and a management communication mechanism between the plurality of optical devices, wherein each of the plurality of optical devices are timing synchronized using the management communication mechanism and Precision Time Protocol (PTP) messaging. Each of the plurality of optical devices can include delay circuitry configured to deskew an associated OTSi with respect to other OTSi signals in the OTSiG.

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