×

Coarse relocalization using signal fingerprints

  • US 10,531,065 B2
  • Filed: 06/15/2017
  • Issued: 01/07/2020
  • Est. Priority Date: 03/30/2017
  • Status: Active Grant
First Claim
Patent Images

1. A computing device, comprising:

  • a processor;

    a display;

    a memory operatively coupled to the processor and the display; and

    a fingerprint program stored in the memory and executed by the processor of the computing device, whereinthe fingerprint program is configured to;

    receive signal fingerprint data comprising a plurality of map data and a fingerprint linked to each of the plurality of map data, each fingerprint comprising one or a plurality of signals from one or a plurality of signal sources for each of the plurality of map data;

    receive one or a plurality of signals from the one or the plurality of signal sources by at least one sensor of the computing device;

    generate a current signal fingerprint based on the received signals;

    determine map data to load by comparing the current signal fingerprint against the signal fingerprint data to generate a ranked list of matching fingerprints, including performing a statistical analysis to evaluate for proximity or degree of disambiguation of the current signal fingerprint to the signal fingerprint data; and

    based on the ranked list, retrieve corresponding map data corresponding to the matching fingerprints in the ranked list.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×