Clock offset estimation with bias correction
US7023884B2 · kind B2 · utility
12Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2000 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Dec 14, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/14
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A new algorithm for clock offset estimation for resources distributed across a network (such as the Internet). By exchanging a sequence of time-stamped messages between pairs of network nodes and separately estimating variable delays for each message direction, present inventive embodiments provide estimates for clock offset between node pairs and the bias of such estimates, thereby to permit more accurate correction. Present inventive algorithms operate in a variety of peer and server network configurations while providing significant improvement in convergence speed and accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.