Distance calibration by event points
US9304205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2014 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Jun 6, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic device for tracking a distance traveled by a user along a course comprises a location determining element, a memory element, and a processing element. The location determining element is configured to receive location signals from a satellite-based positioning system and to determine a current geolocation of the user. The memory element is configured to store geolocations for a start point, an end point, and a plurality of intermediate event points that are passed by the user as he travels along the course, wherein each event point is positioned at a known distance from a stored geolocation such as the start point or another event point. The processing element is configured to determine a measured distance based on the current geolocation of the user and to determine a calibrated distance as a function of the measured distance and the known distances of the event points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.