Method for estimating clock skew within a communications network
US7051246B2 · kind B2 · utility
16Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 15, 2003 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Jul 9, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0664
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for calculating an estimate of the clock skew between a sender's clock and a receiver's clock in a packet-based communications network. An adaptive algorithm is employed in which a recursive least squares approach is used to calculate an estimate of the clock skew based on the transmission of a given (i e., the “current”) packet, which estimate is further based on a previous estimate thereof (“a first approximation” thereof). This illustrative process then iterates with each new packet, producing increasingly accurate estimates of the clock skew.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.