Clock synchronization system and method using a continuous conversion function for a communication network
US6157957A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1998 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Aug 13, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/14
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A clock synchronization system and method in a communication network comprise a plurality of nodes in communication with each other by data transfer over communication links. Each of the nodes has its own local time base and exchanges timing information with a predefined node called master whose time base is the master clock against which said local time base is to be synchronized. At predefined moments in time, each node having a master exchanges timing information with the master node, calculates therefrom a timing data and stores said timing data into a predefined storage location called History; such as to obtain after at least two exchanges, a sequence of timing data stored in the History. From said sequence of timing data, a set of parameters is calculated and stored. The stored parameters are further used for computing a conversion function whereby the node local time is converted upon request into the master time base with a pre-specified and guaranteed precision.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.