×

Navigation device and method

  • US 10,371,533 B2
  • Filed: 12/31/2009
  • Issued: 08/06/2019
  • Est. Priority Date: 05/04/2009
  • Status: Active Grant
First Claim
Patent Images

1. A method of determining speed information for a mobile device based on traffic monitoring information received from a first navigation device and a second navigation device, wherein the mobile device, first navigation device, and second navigation device are different devices, the method comprising:

  • receiving, by a server, first traffic monitoring information from the first navigation device, the first traffic monitoring information including;

    identification information that particularly identifies the mobile device, the identification information having been directly received by the first navigation device from the mobile device,first location information indicating a first geographic location of the first navigation device when the identification information was received from the mobile device, the first navigation device having acquired the first location information from a position sensing system in the first navigation device based on the receipt of the identification information from the mobile device, andfirst temporal information indicating a first time at which the identification information was received by the first navigation device;

    receiving, by the server, second traffic monitoring information from the second navigation device, the second traffic monitoring information including;

    the identification information that particularly identifies the mobile device, the identification information having been directly received by the second navigation device from the mobile device,second location information indicating a second geographic location of the second navigation device when the identification information was received from the mobile device, the second navigation device having acquired the second location information from a position sensing system in the second navigation device based on the receipt of the identification information from the mobile device, andsecond temporal information indicating a second time at which the identification information was received by the second navigation device;

    using, by the server, the first traffic monitoring information and the second traffic monitoring information to compute speed information for the mobile device, the speed information representing a speed of travel of the mobile device between the first geographic location and the second geographic location;

    storing, by the server, the speed information in a map database, the speed information being associated with one or more road segments in the database; and

    providing, by the server to a third navigation device, traffic speeds on the one or more road segments at corresponding times for use by the third navigation device in performing one or more route guidance operations during which a user is presented with one or more route instructions that are determined based on the traffic speeds, wherein the traffic speeds are determined based on the stored speed information in the map database.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×