Patent 7671802 was granted and assigned to Disney Enterprises on March, 2010 by the United States Patent and Trademark Office.
Sports objects, such as players and their equipment, are tracked by receiving signals transmitted by tags attached to the sports objects, and triangulating the signals to estimate the locations of the sports objects. One feature that promotes good signal reception is the use of different groups of three or more receivers. Another such feature is the use of two or more transmitter tags attached to different portions of the sports object. Still another such feature is the use of Ultra-Wideband signals.