SYSTEMS AND METHODS FOR FREQUENCY-BASED STRIDE LENGTH CORRECTION IN A PEDOMETER DEVICE

摘要

A pedometer or other stride-detection device (304) can record the number of strides, and the frequencies of those strides, during a running or other session using a detector (306). The device (304) can report an estimated total elapsed distance (318) at the end of the session, based on the number and estimated lengths of each stride. The reported distance can be calculated using estimates for stride lengths at various frequencies based on a user profile (210), as well as a correction value table (308) and a frequency count table (202). At the end of each session, a corrected distance can be received by user input based on a treadmill display, or other means. A frequency-based correction factor can be updated based on an error ratio of the corrected and reported distances, which can be limited by a correction factor limit and distributed based on a stride frequency probability distribution.