Sensor-based athletic activity measurements
First Claim
1. An athletic performance monitoring method comprising:
- receiving foot-based sensor data during an athletic activity performed by a user;
processing the foot-based sensor data;
determining, based on the processing, a sequence of the foot-based sensor data that corresponds to a set of at least two consecutive heelstrike samples; and
determining a performance metric of the user based on the set of at least two consecutive heelstrike samples; and
responsive to having received a user request, providing the determined performance metric to a user display device.
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Accused Products
Abstract
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.
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Citations
20 Claims
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1. An athletic performance monitoring method comprising:
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receiving foot-based sensor data during an athletic activity performed by a user; processing the foot-based sensor data; determining, based on the processing, a sequence of the foot-based sensor data that corresponds to a set of at least two consecutive heelstrike samples; and determining a performance metric of the user based on the set of at least two consecutive heelstrike samples; and responsive to having received a user request, providing the determined performance metric to a user display device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An athletic performance monitoring apparatus comprising:
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a foot-based sensor; and at least one processor configured to; receive a signal generated by the foot-based sensor during athletic activity performed by a user, wherein the signal comprises a plurality of samples; process the signal; determine, based on the processing, a sequence of the foot-based sensor signal that corresponds to a set of at least two consecutive heelstrike samples; determine a performance metric of the user based on the set of at least two consecutive heelstrike samples; and responsive to having received a user request, provide the determined performance metric to a user display device. - View Dependent Claims (15, 16, 17)
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18. An athletic performance monitoring method comprising:
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receiving foot-based sensor data during an athletic activity performed by a user; processing the foot-based sensor data; determining, based on the processing, a sequence of the foot-based sensor data that corresponds to a set of a heelstrike sample and a toe-off sample; determining a contact time by determining a difference between the toe-off sample and the heelstrike sample; applying a predefined linear relationship to the contact time to calculate a pace of the user; and responsive to having received a user request, providing the determined performance metric to a user display device. - View Dependent Claims (19, 20)
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Specification