Clayton J. Lindsay

Bio: Clayton J. Lindsay is an academic researcher from Nike. The author has contributed to research in topics: Chirp. The author has an hindex of 2, co-authored 3 publications receiving 584 citations.

Athletic Performance Monitoring Systems and Methods in a Team Sports Environment

Abstract: Systems, apparatuses, and methods estimate the distance between a player and a ball by transmitting a chirp (sweep signal) to a radio tag located on the ball. During the chirp, the frequency of the transmitted signal is changed in a predetermined fashion. The radio tag doubles the transmitted frequency and returns the processed signal to a transceiver typically located on the player. The currently transmitted frequency is then compared with the received frequency to obtain a difference frequency from which an apparatus may estimate the distance. The apparatus may simultaneously receive the processed signal from the radio tag while transmitting the sweep signal.

Compact motorized tensioning device for footwear

Abstract: A tensioning system for articles of footwear and articles of apparel is disclosed. The tensioning system includes a spool system that can be engaged or disengaged from a driveshaft through the use of a cam device. The motorized tensioning device includes a torque transmitting system that allows for incremental tightening, incremental loosening and full loosening of the tensile element.

Athletic performance monitoring systems and methods in team sports environment

Abstract: PROBLEM TO BE SOLVED: To provide an athletic performance monitoring system and method in a team sports environment.SOLUTION: A system, apparatus, and method estimate the distance between a player and a ball 130 by transmitting a chirp (sweep signal) to a radio tag located on the ball. During the chirp, the frequency of the transmitted signal is changed in a predetermined fashion. The radio tag doubles the transmitted frequency and returns the processed signal to a transceiver typically located on the player. The currently transmitted frequency is then compared with the received frequency to obtain a difference frequency from which an apparatus may estimate the distance. The apparatus may simultaneously receive the processed signal from a sensor while transmitting the sweep signal.

Monitoring fitness using a mobile device

Abstract: Athletic performance monitoring and tracking may provide multiple ways in which to track athletic movement and activity. In one example, an athletic monitoring device may include or be associated with multiple types of movement sensors and switch between the sensors or use both depending on various factors including type of workout. Workouts may also be tagged with various parameters including mood, weather, terrain, athletic equipment used and the like. In one or more examples, the parameters may be automatically determined based on location. User workouts and accomplishments may also be celebrated through messages from celebrities, family, friends and other users. In some cases, the messages may be triggered by various conditions. Coaching may also be provided to the user to help improve workouts and overall athletic performance. Running routes may also be automatically tracked, stored and shared.

Footwear having sensor system

Abstract: A sensor system is adapted for use with an article of footwear and includes an insert member including a first layer and a second layer, a port connected to the insert and configured for communication with an electronic module, a plurality of force and/or pressure sensors on the insert member, and a plurality of leads connecting the sensors to the port.

Golf clubs and golf club heads

Abstract: Golf clubs according to at least some example aspects of this disclosure may include a golf club head and a shaft configured to engage with the golf club head which includes a grip engaged with the shaft. Further, the golf club may include a monitoring device, which includes a sensor and a transmitter. Additionally, the monitoring device may be configured to determine data related to the characteristics of a golf swing. Further, the monitoring device may be configured to transmit the data related to the characteristics of a golf swing to a remote computer.

Group performance monitoring system and method

Abstract: The present invention provides a group monitoring device for monitoring a plurality of individuals engaged in an athletic activity, the device including a display configured to display, during an athletic activity: a metric relating to each of a plurality of individuals engaged in the athletic activity, and a status of a system component used to monitor the athletic activity. The group monitoring device may also include an input configured to allow manipulation of the display.