A method and system for use in the game of football to determine ball placement and position, as well as first down demarcations, is described, with various embodiments configured to track the location of a football to determine its position on the field and to determine and display the first down demarcation on the field. Certain embodiments employ software to assist in performing placement determinations, distance determinations, track movement of the ball, first down markers, as well as light emitting modules along a track that extends parallel to the field.

A nonlinear radar system includes a first antenna configured to generate and emit an incident signal having a first frequency, a transponder tag attached to an existing portable object, wherein the transponder tag includes an electromagnetic nonlinear element configured to be detected by the incident signal. Upon being detected by the incident signal, the transponder tag is configured to transmit a reflected return harmonic signal having a second frequency different from the first frequency, wherein the reflected return harmonic signal is an on-off keying (OOK) signal. A second antenna is configured to receive the reflected return harmonic signal having the second frequency. The transponder tag includes a conductive layer in electrical communication with the electromagnetic nonlinear element including a Schottky diode.

A golf ball verification system and method is described. The illustrative golf ball verification system includes balls, bays and at least one target. Each of the balls includes a unique ID indicator. Additionally, each of the bays includes a ball dispenser, a first ball ID reader, a first diverter, and a first reject ball chute. The first ball ID reader identifies any of the balls having unreadable ID indicators. The first diverter selects any of the balls having unreadable ID indicators for collection by the first reject ball chute. Furthermore, each target includes a ball detector, a second ball ID reader, a second diverter, and a second reject ball chute. The second ball ID reader identifies any of the balls having unreadable ID indicators. The second diverter selects the balls having unreadable ID indicators for collection by the second reject ball chute.

Systems and methods relating to evaluating the performance of a person playing basketball are described. The systems and methods can be used to provide an evaluation sequence that can determine and evaluate the performance level of a person at one or more basketball skills. The evaluation sequence for the person can include a first sequence of actions that are the same each person being evaluated for a particular skill and a second sequence of actions that is based on the results of the first sequence and may be different for each person. Once the first and second sequences have been completed by the person, the system can determine a performance level for the person for the skills being evaluated.

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.

Systems and methods of gathering and transmitting golf tournament information, including a server configured to receive data from a plurality of portable devices carried by spotters of the golf tournament, the data being entered by the spotters into their respective portable devices in real time during the golf tournament, the data being related to the status of golf balls played by particular players after the balls have been hit by the players, the server being configured to selectively transmit at least some of the collected data to another portable device in a format permitting display according to pre-formatted screens.

A method of locating a golf ball is disclosed. The method includes providing a golf ball which includes a radiation source of a particular radiation type that is continuously emanating radiation, providing a radiation sensor capable of discerning and sensing the emanated radiation and providing an electronic signal corresponding to the sensed radiation indicative of radiation intensity, continuously mapping location of the radiation sensor by generating location coordinates, correlating the electronic signal to the location coordinates generating a correlation data, and determining location of the golf ball from the correlation data.

A camera system for filming a golf game comprises a camera module for capturing images; a pan-tilt head pivotally connected to the camera module and configured to rotate the camera module horizontally and vertically; a circuit board connected to the camera module and the pan-tilt head and configured to control the camera module and the pan-tilt head; a sensor unit sensing the direction, vertical angle, and horizontal angle of the camera module; and a central processing unit connected to the camera module, the pan-tilt head and the sensor unit. The present invention also provides a method for filming a golf game by using the camera system.

This invention generally relates to an automated visual enhancement camera system and method, and more particular to an automated visual enhancement camera system and method that enhances guest experience by offering TV style view of a guest hitting a golf ball with shot tracer and scoring overlay and by allowing guest to share the experience on social media.

Electronic tracking systems are disclosed for assisting users with locating objects in a sporting environment. One such system includes a ball tracking component that tracks a game ball while moving in the sporting environment, and a heads up display that is worn by the user. This heads up display has an electronic display screen with a transparent display area that dynamically displays images within the user's field of view. A processor, which communicates with the ball tracking component and heads up display, is programmed to detect movement of the game ball, and responsively determine launch characteristics and/or flight characteristics of the moving game ball. The heads up display displays the launch/flight characteristics contemporaneous with an object indication adjacent to or superimposed over the moving game ball as the game ball is visible through the transparent display area of the display screen within the user's field of view.