Systems and methods for determining a route traversed by a portable device
AssigneeInvenSense, Inc.
InventorsArdalan Heshmati, Rahul Bakshi
Life of this patent
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Abstract
Systems and methods are disclosed for determining location information for a portable device by identifying interactions indicating proximity between the user and a plurality of items. Each item may be associated with a known location to establish anchor points such that a route traversed by the portable device may be generated from the established anchor points and motion sensor data output by the portable device.
Claims29
A method for determining location information for a portable device associated with a user comprising:
- traversing a route with the portable device over a first period of time;
- obtaining motion sensor data from the portable device for the first period of time;
- establishing a plurality of anchor points at a time subsequent to the first period of time, wherein the anchor points are derived from point of sale information by associating known locations with products purchased by the user and wherein the anchor points and the portable device do not exchange signals;
- and
- determining location information for the route traversed by the portable device based at least in part on the established anchor points and the motion sensor data.
A portable device associated with a user comprising:
- a motion sensor configured to output motion sensor data corresponding to a route traversed with the portable device over a first period of time;
- a communications module for receiving point of sale information at a time subsequent to the first period of time;
- and
- a route generator configured to:
- establish a plurality of anchor points, wherein the anchor points are derived from the point of sale information by associating known locations with products purchased by the user and wherein the anchor points and the portable device do not exchange signals;
- and
- determine location information for the route traversed by the portable device based at least in part on data output by the motion sensor and the established anchor points.
A system for determining location information for a portable device associated with a user comprising:
- the portable device having a motion sensor configured to output motion sensor data corresponding to a route traversed with the portable device over a first period of time;
- a database of known locations for a plurality of products;
- and
- a route generator, wherein the route generator is configured to:
- establish a plurality of anchor points at a time subsequent to the first period of time, wherein the anchor points are derived from point of sale information by associating known locations from the database with products purchased by the user and wherein the anchor points and the portable device do not exchange signals;
- and
- determine location information for the route traversed by the portable device based at least in part on the established anchor points and data from the motion sensor of the portable device.
Dependencies are inferred from the claim text.