An estimation device that includes an extraction unit that acquires sensor data from a sensor installed on footwear and extracts a gait feature quantity characteristic of walking in the footwear by using the sensor data, and an estimation unit that estimates a type of the footwear based on the gait feature quantity extracted by the extraction unit.

An estimation device that includes an extraction unit that acquires sensor data from a sensor installed on footwear and extracts a gait feature quantity characteristic of walking in the footwear by using the sensor data, and an estimation unit that estimates a type of the footwear based on the gait feature quantity extracted by the extraction unit.

Soles for articles of footwear including a mechanically anisotropic three-dimensional mesh. The mechanically anisotropic three-dimensional mesh can include one or more mechanically anisotropic regions with a first lattice shear modulus measured in a first direction and a second lattice shear modulus measured in a second direction opposite to or orthogonal to the first direction. The first and second lattice shear moduli are different to provide the three-dimensional mesh with mechanically anisotropic properties. The mechanically anisotropic three-dimensional mesh can be three-dimensionally printed.

A fitness tracking system includes a shoe, a monitoring device, and a controller. The monitoring device is mounted on the shoe and includes an accelerometer configured to generate acceleration data corresponding to acceleration of a foot received by the shoe. The controller is operably connected to the accelerometer and is configured to collect sampled acceleration data by sampling the generated acceleration data, to identify foot strike data of the sampled acceleration data, to identify a local minimum of the sampled acceleration data collected prior to the foot strike data, and to determine foot strike characteristic data corresponding to the foot strike data based on an acceleration value at the local minimum.

A fitness tracking system includes a shoe, a monitoring device, and a controller. The monitoring device is mounted on the shoe and includes an accelerometer configured to generate acceleration data corresponding to acceleration of a foot received by the shoe. The controller is operably connected to the accelerometer and is configured to collect sampled acceleration data by sampling the generated acceleration data, to identify foot strike data of the sampled acceleration data, to identify a local minimum of the sampled acceleration data collected prior to the foot strike data, and to determine foot strike characteristic data corresponding to the foot strike data based on an acceleration value at the local minimum.

A smart shoe has a height-adjustable heel having a plurality of co-axially oriented, concentric cylindrical wall sections of progressively different diameters comprising a skeleton framework. The wall sections are extendable from a collapsible position wherein the wall sections substantially completely overlap in an axial direction to an extended position wherein the walls sections are extended in an axial direction. Heel height is determined by the number of uncollapsed wall sections. A controller element provides incremental heel height adjustments through the sequential collapse of one wall section at a time starting with the uppermost wall section. The smart shoe includes reversibly expandable components for automatically modifying its width, length, and arch support height to provide an optimal fit of both shoes comprising the pair of smart shoes at every selected heel height.

An active suspension orthotic support system is disclosed. The suspension orthotic support system comprises at least one variable resistance beam extending from a heel section to a mid-arch section of the footwear, wherein rotation of the variable resistance beam from a first position to a second position causes a resistance provided by the variable resistance beam to vary between a minimum resistance to a maximum resistance.

An insole with embedded sensing system includes a pressure sensing layer arranged on the insole, an infrared sensing layer arranged inside the insole, and a sensing module installed inside an arch pad integrated with the insole. The sensing module is electrically coupled with the pressure sensing layer and the infrared sensing layer for receiving and processing detected electronic signals.

A visual assistance system or distance and location detection system is provided. The system comprises a sensor detecting distance of objects in a user's path and alerting the user when an object is within a designated proximity to the user. The system further comprises a location detection system using GPS technology that tracks the user's location and issues an alert to the user or other individual when the user's location exceeds the boundaries of a designated safe zone.

A personal monitoring system includes one or more passive biometric sensors and a communication device. A passive biometric sensor is operable to sense a body condition of a body in accordance with a sense signal at a sense frequency to produce sensed data of a body condition. The passive biometric sensor is further operable to transmit an e-field signal via the body regarding the sensed data, wherein the e-field signal is in accordance with an e-field transmit/receive frequency. The communication device is operable to receive the e-field signal via the body. The communication device is further operable to recover the sensed data from the received e-field signal.