Cycle synchronization between interconnected sub-networks
US7720110B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2006 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Jan 17, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/4035
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method to perform a cycle synchronization between interconnected sub-networks, in which a reference node connected to one of the sub-networks transmits a respective cycle time information to cycle masters of all other sub-networks at recurring time instants, and the cycle masters of all other sub-networks adjust their cycle time accordingly. An adjustment of the cycle time within a cycle master is performed by determining a first time interval (t1, t1′) in-between two receptions of cycle time information from the reference node with an own clock, determining a second time interval (t2, t2′) in-between two corresponding transmissions of cycle time information from the reference node on basis of the received cycle time information, comparing the first time interval (t1, t1′) and the second time interval (t2, t2′), and adjusting the own cycle length according to the comparison result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.