Patent ID: 9677887
Date: 2017-06-13
CPC Classifications: G01C

Claim:
1. A method for estimating at least an initial position of a mobile device using vehicle odometer readings, comprising: retrieving, by the mobile device, a last known position associated with a vehicle at a first odometer value associated with the vehicle in response to the mobile device establishing a link with the vehicle, wherein the last known position and the first odometer value associated with the vehicle are stored in association in a memory accessible to the mobile device; reading, by the mobile device, a current odometer value from the vehicle via the established link with the vehicle; comparing, by the mobile device, the first odometer value associated with the last known position to the current odometer value read from the vehicle; and using, by a navigation unit incorporated into the mobile device, the last known position associated with the vehicle at the first odometer value as the initial position of the mobile device at navigation start-up for subsequent positioning by the mobile device in response to the comparing indicating that the current odometer value has not changed from the first odometer value associated with the last known position, the mobile device including a receiver or transceiver to receive signals for deriving position information from the signals for aiding the subsequent positioning by the mobile device.