Self-checking pair-based master/follower clock synchronization
US7912094B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2006 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Dec 16, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0676
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods for network clock synchronization are provided. In one embodiment, a method for clock synchronization in a braided ring network comprises: providing a schedule for a braided ring network comprising a plurality of nodes, wherein at least two nodes comprise a self-checking pair of a first node and a second node, the first node performing a method comprising: determining when a first rendezvous message is received from the second node; when the second rendezvous message is received, calculating a time difference between the send instance of the first rendezvous message and a local time; when the time difference is not greater than a reference bound, calculating a sending point for transmitting a synchronization message, wherein the sending point is calculated based on the time difference; and selectively sending the synchronization message to the braided ring network when the sending point is reached based on the time difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.