Global positioning system time verification for autonomous vehicles
US12405385B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 6, 2024 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | May 6, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/011
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of updating a clock associated with an autonomous vehicle includes determining, at a processor, a sensor-based position of the autonomous vehicle, which is determined based on data from one or more sensors and based on a digital map. The method also includes determining, at the processor, a global positioning system (GPS) computed position of the autonomous vehicle and a GPS time. The GPS computed position and the GPS time are determined based on a plurality of GPS signals received from GPS satellites. The method further includes comparing the sensor-based position to the GPS computed position to determine whether the sensor-based position is within a threshold distance from the GPS computed position. The method also includes updating the clock associated with the autonomous vehicle based on the GPS time in response to a determination that the sensor-based position is within the threshold distance from the GPS computed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.