Determination of accuracy of a chain of clocks
US10313041B2 · kind B2 · utility
4Cited by
10References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 23, 2016 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Oct 18, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0673
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a time synchronization process, chain of quality information is provided between interconnected nodes, the chain of quality information relating to information regarding accuracy of a clock, a type of timestamping used by a node, a type of link over which a timestamp is provided, and a clock drift parameter indicating the drift characteristics of the clock. Based on the chain of quality information, parameters are determined for a filter that is applied to a sequence of timestamps in order to remove noise from the timestamps, thereby improving accuracy of the time synchronization process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.