Patent Document ID: 9068839
Application ID: 13538341
Patent Status: 1

Claim One:
1. A method comprising facilitating a processing of and/or processing (1) data and/or (2) information and/or (3) at least one signal, the (1) data and/or (2) information and/or (3) at least one signal based, at least in part, on the following: a processing of sensor information associated with at least one device traveling on at least one route to determine at least one pattern of shadows on the at least one route; a comparison of the at least one pattern of shadows against one or more reference patterns of shadows associated with one or more known locations; and an estimation of a location, a direction of travel, or a combination thereof of the at least one device based, at least in part, on the comparison; wherein the at least one pattern of shadows includes lighter and darker sections corresponding to shadows casted on the route by environmental features surrounding the route and sensed by the traveling device.