{
  "$type": "site.standard.document",
  "description": "A cell phone (1) or similar portable device includes a global navigation satellite subsystem (5) and an inertial navigation subsystem (7) responsive to an inertial sensor (6). The inertial sensor (6) is used in a navigation mode discrimination routine to sample the frequency of inertial…",
  "path": "/patents/971551",
  "publishedAt": "2014-08-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/20",
    "INTEL CORP [US]"
  ],
  "textContent": "A cell phone (1) or similar portable device includes a global navigation satellite subsystem (5) and an inertial navigation subsystem (7) responsive to an inertial sensor (6). The inertial sensor (6) is used in a navigation mode discrimination routine to sample the frequency of inertial disturbances of the device and the sampled frequencies are processed to determine if the device is being carried by a pedestrian or carried in a vehicle. By reliably determining the mode of transport, erroneous navigation can be avoided.",
  "title": "An integrated global navigation satellite system and inertial navigation system"
}