Patent ID: 8510079

Claim:
An advanced pedometer, comprising: a first accelerometer for providing first acceleration information for a first direction; a second accelerometer for providing second acceleration information for a second direction; a third accelerometer for providing vertical acceleration information in a third direction, wherein the first, second, and third directions are independent of each other; a clock for providing time information associated with the first acceleration information, the second acceleration information, and the third acceleration information; and a processing module comprising one or more processors, wherein the processing module is configured to receive the first, second, and third acceleration information, and is further configured to execute computer-executable instructions to: determine a floor level acceleration information for a plane by calculating an absolute magnitude of a combination of the first acceleration information and the second acceleration information, wherein the plane defines a horizontal plane defined by the first direction and the second direction and wherein the third direction is a vertical direction perpendicular to the horizontal plane; and estimate a distance traveled based on the floor level acceleration information, the vertical acceleration information, and at least a portion of the time information, wherein the distance traveled is estimated independently of any direction information from any directional sensors.