Patent ID: 9116002
Filing Date: 2015-08-25
Classification: G01C,G01S

Abstract:
1. A computer-implemented method performed by a location aware device, the method comprising: generating context data based on outputs from one or more sensors of the location aware device, the context data indicating at least one of whether the device is moving or whether the device is turning; determining, by a context-based weight selector of the device, one or more weights corresponding to the context data, each weight representing contribution of measurements of position or heading to previous measurements of position or heading, respectively; determining a navigation solution for the location aware device by a navigation subsystem of the device; determining an error estimate of the navigation solution using the one or more weights, including weighting or de-weighting measurements of the navigation subsystem using the one or more weights by a statistical filter of the device; determining whether to move or hold a position of an icon or marker in a map view based on whether the error estimate indicates that the navigation solution needs to be changed, where the icon or marker represents an estimated current location of the location aware device, where the method is performed by one or more hardware processors.