Abstract: A game ball locating system includes a ball with in internal MEMS module that communicates with transceivers positioned about the periphery of a playing field. A wireless radio frequency barrier is positioned below the playing field boundary, i.e., the sidelines and goal lines. The MEMS module includes a gyrometer and accelerometer that determine when the base ceases motion. The MEMS further measures signal strength emanating from the radio frequency barrier to determine when the ball crosses the playing field boundary. In either event, a controlling computer activates the transceivers, which transmit a signal to the MEMS module and the computer calculates the exact position of the ball.

Abstract: An electronic whistle system pertains to an electronically activated handheld whistle with a transmitter and receiver modules, for use at various sports games, is disclosed. The transmitter module is configured to send a serialized pulse signal to the receiver module for regulating the start and stop of the game clock. The transmitter module comprises an optical sensor on the opposite side of a vane, which occludes an optical sensor beam when the whistle is blown. A microcontroller sends a serialized pulse signal from the transmitter module to the receiver module. The receiver module intercepts the received signal on the detection of correct serial number, the receiver module will send a STOP pulse to the game clock via a cable. The electronic whistle system is designed to dramatically reduce the errors in the timing aspect of various games.

Abstract: An electronic whistle system pertains to an electronically activated handheld whistle with a transmitter and receiver modules, for use at various sports games, is disclosed. The transmitter module is configured to send a serialized pulse signal to the receiver module for regulating the start and stop of the game clock. The transmitter module comprises an optical sensor on the opposite side of a vane, which occludes an optical sensor beam when the whistle is blown. A microcontroller sends a serialized pulse signal from the transmitter module to the receiver module. The receiver module intercepts the received signal on the detection of correct serial number, the receiver module will send a STOP pulse to the game clock via a cable. The electronic whistle system is designed to dramatically reduce the errors in the timing aspect of various games.