Measurement and adjustment of real-time values according to residence time in networking equipment without access to real time
US8576883B2 · kind B2 · utility
14Cited by
2References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 23, 2010 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Jun 14, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0667
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method of synchronizing clocks in a distributed network is disclosed. A simple 1-pulse-per-second timing pulse is routed to time-stamping units in each network device and utilized to measure traffic-dependent synchronization packet residence delays within network elements. Synchronization messages are updated to reflect the measured residence times, thus creating transparent clocks that can readily be synchronized across the network. The simple timing pulse architecture allows the method to be applied readily both to new designs and to retrofit existing hardware.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.