Time synchronization of controller
US11770235B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Feb 17, 2022 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Mar 25, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/34397
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A controller includes circuitry configured to: synchronize a master clock with an external global clock and set a master time based on the master clock; synchronize a controller clock with the master clock and perform time synchronization to synchronize a controller time based on the controller clock with the master time; transmit controller time data indicating the synchronized controller time to at least one local device; set a plurality of time windows corresponding to a plurality of clock cycles of a clock signal for the time synchronization; determine whether one clock cycle of the plurality of clock cycles has started within one time window of the plurality of time windows, the one time window corresponding to the one clock cycle; and suspend the time synchronization corresponding to the one clock cycle, in response to determining that the one clock cycle has not started within the one time window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.