Patent · US Active

Time synchronization across computers in a distributed system

US9588544B2 · kind B2 · utility

2Cited by
2References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 6, 2011
Grant dateMar 7, 2017
Priority date
Expiry dateMar 19, 2034

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04J3/0667
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

Normalizing time across machines in a distributed system. A method includes obtaining one or more points defining differences in time between machines in the distributed system. Using the points, a determination of one or more time measurement drifts between machines is made. The one or more time measurement drifts indicate changing differences in time over time. One or more traces are collected. Each trace includes one or more events. Each event is correlated to a time stamp from one of the machines in the distributed system. Using the one or more determined time measurement drifts, the time stamps are normalized.

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