发明名称 |
SENSOR-BASED ATHLETIC ACTIVITY MEASUREMENTS |
摘要 |
Determining pace or speed based on sensor data may include determining an amount of contact time a user's foot has with a workout surface such as the ground. Contact time may be determined by identifying samples in the sensor data that correspond to various events such as a heelstrike, a toe-off and a subsequent heelstrike. In one example, these events may be identified by determining a sequence of three sample values (e.g., a triplet) that exceeds corresponding thresholds. The validity of an identified triplet (e.g., heelstrike, toe-off and heelstrike) may be confirmed by determining whether a difference between a last event sample and a middle event sample is greater than a difference between the middle event sample and an initial event sample. Once confirmed, a contact time may be determined from the triplet. A linear or non-linear relationship may then be applied to the contact time to determine a speed or pace. |
申请公布号 |
WO2013006434(A1) |
申请公布日期 |
2013.01.10 |
申请号 |
WO2012US44924 |
申请日期 |
2012.06.29 |
申请人 |
NIKE INTERNATIONAL LTD.;WEAST, AARON B.;MULLIN, JAMES M. |
发明人 |
WEAST, AARON B.;MULLIN, JAMES M. |
分类号 |
A61B5/11 |
主分类号 |
A61B5/11 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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