Patent · US Active

Route smoothing

US9891059B2 · kind B2 · utility

1Cited by

6References

16Claims

0Family size

Assignee

Tom Tom Global Content B.V. · NL

Inventors

Marcin Michal Kmiecik · Terespol, PL
Rafal Jan Gliszczynski · Amsterdam, NL

Key dates

Filing date	Sep 13, 2012
Grant date	Feb 13, 2018
Priority date	—
Expiry date	Sep 13, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01S19/49
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method is disclosed involving receiving GPS data from a personal portable training device. A smoothing operation is performed on the GPS data to generate a more accurate representation of the route travelled for display to a user (504). In the smoothing operation, a cubic spine algorithm is used to obtain an initial estimate of the route representation (500). The estimate is then subjected to a refinement using at least received user motion data recorded by the personal training device (502). In addition one or more of: data indicative of the GPS accuracy; historical route data; and digital map data, such as building footprints and bodies of water, may be used in refining the estimate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.