{
  "$type": "site.standard.document",
  "description": "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 spline algorithm is used…",
  "path": "/patents/985495",
  "publishedAt": "2013-03-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/005",
    "TOMTOM POLSKA SP Z O O [PL]"
  ],
  "textContent": "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 spline algorithm is used to obtain an initial estimate of the route representation (500). The estimate is then subjected to 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.",
  "title": "Route smoothing"
}