专利名称：Automatic track selection for calibration of
pedometer devices
发明人：Robert C. Curtis,Chintan S. Parikh,Hung A.
Pham,Jonathan Beard,Gunes Dervisoglu
申请号：US14721941申请日：20150526公开号：US10001386B2公开日：20180619
专利附图：
摘要：A calibration track to use for pedometer calibration can be automaticallyselected based on detecting sustained locomotion activity and an ability to obtain and
maintain a reliable location fix over a calibration period. Calibration tracks can begenerated, rated for quality, and used to compute calibration parameters to convertaccelerometer data to stride length and/or distance traveled. Quality of a calibration canbe assessed, and old and new calibration parameter sets can be combined based onquality weights assigned to each. Calibration parameters can be separately maintainedfor different locomotion activities and/or different on-body locations of the pedometers.Pedometer devices can also cooperatively calibrate each other.
申请人：Apple Inc.
地址：Cupertino CA US
国籍：US
代理机构：Kilpatrick Townsend & Stockton, LLP
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