In one aspect, an example system includes an arrow nock configured to couple to an arrow, a transmitter coupled to the arrow nock, and a controller. The controller is configured to (i) determine that the arrow has been shot from a bow and (ii) responsive to determining that the arrow has been shot from the bow, cause the transmitter to transmit a beacon signal at a variable rate that varies based on an amount of time elapsed since determining that the arrow has been shot from the bow.

A virtual exercise place selected by a user is displayed and the user can exercise while sharing the display of the selected virtual exercise place with another user in real time or at a different time. The system has an image information database in which location-based image data related to a virtual exercise place is stored; and an image data controller selecting from the image information database location-based image data related to a virtual exercise place received from the terminal and providing the selected location-based image data to the terminal, displaying on the terminal an exercise place image data corresponding to an exercise start location received from the terminal, receiving exercise distance information calculated by the fitness equipment, and displaying on the terminal an exercise place image data corresponding to a location moved by the exercise distance from the exercise start location.

An electronic golf aid system for assisting users with reading greens on golf courses includes a camera that captures images of the user's field of view, and an electronic display device with a display screen that displays captured images. A processor, which communicates with the camera and display device, is programmed to: receive signals from the camera indicative of images of a golf ball and a cup on the green; determine respective locations for the golf ball and cup; determine a perspective view of the topology of the green between the golf ball and cup from the user's point of view; determine, based on the green's topology, a proposed trajectory line from the golf ball's location to the cup's location; and direct the electronic display device to display the proposed trajectory line superimposed on the surface of the green as the green is shown in real-time on the display screen.

Program products, methods, and systems for providing location-aware fitness monitoring services are disclosed. In an embodiment of the present invention, a method of displaying a route traversed by an athlete equipped with a location-aware portable fitness monitoring device includes the steps of (a) receiving data describing a plurality of satellite navigational system waypoints that are acquired as the athlete engages in a fitness activity, (b) identifying a map area based on a location indicated by the data describing the plurality of satellite navigational system waypoints, (c) determining the route traversed by the athlete based on the data describing the plurality of satellite navigational system waypoints and based on the location of one or more known paths associated with the map area, and (d) displaying the route traversed by the athlete on top of the map area.

The present disclosure generally relates to user interfaces for managing, modifying, and/or outputting workout content.

A workout music playback device for playing workout music during a workout with given workout parameters by arranging and assembling song segments of original musical recordings in accordance with workout parameters. The device has a media output manager configured to receive said workout parameters and prepare audio output information on arranging a sequence of song segments into an edited song recording. It has an instruction relay module configured to receive said audio output information, and transmit said workout audio output instructions. The device has a media output generator configured to receive said audio output instructions from said instruction relay module, retrieve and assemble said song recording data of said original musical recording from said memory in accordance with said audio output instructions, and transmit a data stream of workout music corresponding to said workout parameters.

An information display system for a golfer in which a display module in wireless communication with an electronic device, such as a mobile phone with a golf GPS application, is worn by a golfer on the back of a golf glove, so that the golfer can very conveniently check on the golfer's distance to various targets on the golf course. The display module is removeably attached to the glove by at least one releasable connection, such a threaded fastener and/or a magnet.

Systems and methods are described for providing coaching, training, or equipment specification information to individual golfers based on data generated during their individual golf swings. Additionally, data hubs are described that provide information and services to individuals based on data collected for a community of multiple golfers. Such community data hub systems and methods may provide one or more of the following: (a) storage of scoring data, swing data, ball flight data, and/or equipment data for multiple golfers; (b) at least some level of individual access to the stored data for the community; and/or (c) electronic interaction between golfers within the community.

A system includes a minimally intrusive display system (MIDS) configured to be disposed on an eyewear. The MIDS includes a display system and a sensor system configured to provide for a sensor data. The MIDS further includes a processor configured to process the sensor data to derive an activity metric. The processor is further configured to display, via the display system, the activity metric, wherein the display system is disposed in the eyewear so that the activity metric is only viewed when a user of the eyewear turns the user's pupil towards the display system at angle from a forward direction.

A system includes a minimally intrusive display system (MIDS) configured to be disposed on an eyewear. The MIDS includes a display system and a sensor system configured to provide for a sensor data. The MIDS further includes a processor configured to process the sensor data to derive an activity metric. The processor is further configured to display, via the display system, the activity metric, wherein the display system is disposed in the eyewear so that the activity metric is only viewed when a user of the eyewear turns the user's pupil towards the display system at angle from a forward direction.