Nike, Inc.

Phillip Meneau

Steven H Walker

Andrew A Owings

Wilson W Smith, Iii

Kevin J Rucier

Erin Mcauliffe

Active footwear can include a system to automatically detect a presence or absence of a foot. In an example, the system can be configured to provide information about a liquid saturation level that can affect a sensitivity or performance of the foot presence sensor. The system can use time-multiplexed signals to excite respective different electrodes in a foot presence sensor, and the electrodes can generate respective electric fields inside the footwear. Interruptions in the fields can be detected and used to determine foot presence or absence or a liquid saturation level.

Footwear-based body presence detector

A foot presence sensor system for an active article of footwear can include a sensor housing configured to be disposed at or in an insole of the article, and a controller circuit, disposed within the sensor housing, configured to trigger one or more automated functions of the footwear based on a foot presence indication. In an example, the sensor system includes a capacitive sensor, and the sensor is configured to sense changes in a foot proximity to the sensor in footwear. A baseline or reference condition for the capacitive sensor can be updated to accommodate different use conditions.

Active footwear sensor calibration

A foot presence sensor system for an active article of footwear can include a sensor housing configured to be disposed at or in an insole of the article, and a controller circuit, disposed within the sensor housing, configured to trigger one or more automated functions of the footwear based on a foot presence indication. In an example, the sensor system includes a capacitive sensor configured to sense changes in a capacitance signal in response to proximity of a body. A dielectric member can be provided between the capacitive sensor and the body to enhance an output signal from the sensor.

Capacitive foot presence sensing for footwear

Foot presence sensing systems for active footwear

A foot presence sensor system for an active article of footwear can include a sensor housing configured to be disposed at or in an insole of the article, and a controller circuit, disposed within the sensor housing, configured to trigger one or more automated functions of the footwear based on a foot presence indication. In an example, the sensor system includes a capacitive or magnetic sensor configured to sense changes in a body's proximity to the sensor in footwear. Characteristics of the sensed proximity can be used to update an automated footwear function, such as an automatic lacing function, or can be used to determine a step count, foot strike force, a rate of travel, or other information about a foot or about the footwear.

Foot presence signal processing systems and methods

A foot presence sensor system for an active article of footwear can include a sensor housing configured to be disposed at or in an insole of the article, and a controller circuit, disposed within the sensor housing, configured to trigger one or more automated functions of the footwear based on a foot presence indication. In an example, the sensor system includes a capacitive sensor, and the sensor is configured to sense changes in a foot proximity to the sensor in footwear. Information about the sensed proximity can be used to determine a foot velocity characteristic, which in turn can be used to update an automated footwear function, such as an automatic lacing function, or can be used to determine a step count, foot strike force, a rate of travel, or other information about a foot, about an activity, or about the footwear.

Foot presence signal processing using velocity

An article of footwear can include a ferromagnetic body disposed in the article, and a magnetometer to measure a strength or direction of a magnetic field that is influenced by a position of the ferromagnetic body. One of the ferromagnetic body and the magnetometer can be configured to move relative to the other one of the ferromagnetic body and the magnetometer, for example according to movement of a foot in the article. In an example, the ferromagnetic body is disposed in a compressible insole and the ferromagnetic body moves in response to compression or relaxation of the insole. The magnetometer can be disposed in a platform or sole portion of the article that is relatively stationary compared to the ferromagnetic body. Rate of change information about the magnetic field can be used to control article functions or to provide information about a foot strike or step rate.

Foot presence sensing using magnets in footwear

Foot support systems (and articles of footwear including them) include: (a) a medial side member having one or more medial side supports (e.g., ribs); (b) a lateral side member having one or more lateral side supports (e.g., ribs); and (c) structure (such as a hinge system) configured to move the foot support system (e.g., the medial side support(s) with respect to the lateral side support(s)) between: (a) a foot-insertion configuration and (b) a foot-containing configuration. In moving from the foot-insertion configuration to the foot-containing configuration, the foot support system can be changed between an open condition and a closed condition.

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Portland, OR, United States of America

Phillip Meneau