Securing time between nodes
US10158441B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2017 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Jun 15, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W56/001
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods are provided for validating time between a local clock included in the slave node of a network with a master clock included in the master node of the network. The master node determines a propagation delay between the master node and the slave node, sends a synchronization message to the slave node at a first time, determines an expected receipt time of the synchronization message at the slave node based on the first time, the determined propagation delay between the master node and the slave node, and a rate ratio of the master clock to the local clock, and sends a follow up message to the slave node, the follow up message including the first time and the expected receipt time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.