US Patent 7846020 Problem gambling detection in tabletop games

A gaming establishment may determine the existence of problem gamblers within its halls by monitoring player behavior with one or more sensors from an array of sensors. The player's behavior is then compared to normal behavior and/or problem gambling behavior to determine if the player is potentially a problem gambler. Behavior patterns that may be tracked are player movement, player betting patterns, facial expressions, physical clues, nonverbal clues, and the like.