Patent ID: 8639455

Claim:
A foot pad device worn on the foot of a user for obtaining weight data comprising: a foot pad, defining at least one of a ball region located under the ball of the foot of the user and a heel region located under the heel of the foot of the user; wherein the foot pad is selected from a group of foot pads of different sizes; a plurality of force sensors that provide force data, wherein at least a portion of the plurality of force sensors is located in at least one of the ball region and the heel region; sensor electronics, coupled to the plurality of force sensors, that condition the force data to be within a conditioned force data range; wherein the sensor electronics include a flexible circuit with a plurality of force sensor connection paths adapted to transmit force data from the plurality of force sensors and defining a plurality of applicable sensor positions; wherein the plurality of force sensors are located in at least a selected portion of the plurality of applicable sensor positions, and the selected portion of the plurality of applicable sensor positions are selected based on the size of the foot pad; and a processor that calculates a weight value based on the conditioned force data.