GNSS-based multi-modal clock correction
US10887038B2 · kind B2 · utility
2Cited by
2References
20Claims
0Family size
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Key dates
| Filing date | Feb 8, 2019 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Feb 8, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0016
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A Grandmaster clock is presented. The Grandmaster clock has a GNSS interface receiving GNSS time sync data, a Real Time Clock (RTC) with a crystal oscillator, one or more communication interfaces exchanging data with clock correction sources, and a clock correction host. The clock correction host computes clock drift based on the GNSS time sync data and the data from clock correction sources, generating adjusted clock data, and writing the adjusted clock data to the RTC from different locations. The Grandmaster clock may be in a vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.