Cycle synchronization between interconnected sub-networks
US7184449B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 5, 2001 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Oct 21, 2023 |
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 (Δt1, Δt1′) in-between two receptions of cycle time information from the reference node with an own clock, determining a second time interval (Δt2, Δt2′) 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 (Δt1, Δt1′) and the second time interval (Δt2, Δt2′), and adjusting the own cycle length according to the comparison result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.