| 摘要 |
A device and method for interactive tennis practice to improve a player's skills and sense and record the player's performance. One of a number of predetermined practice drill patterns are selected, a ball machine is controlled to project tennis balls onto a tennis court in the selected practice drill pattern, and the points of impact of the tennis balls after they have been struck by a player are sensed and displayed on a video screen. The player may select one of several predetermined target areas on the court for display on the video screen, and the sensed points of impact may be recorded for later retrieval. The ball machine may project tennis balls in timed response to the sensing of the impacts of balls struck by the player. Game play may be simulated by selecting one of a number of predetermined target areas on the tennis court, projecting a tennis ball to be struck by the player onto the court, sensing the impact of the tennis ball in the target area after it has been struck, controlling the ball machine to project another ball in timed response to the sensed impact, and projecting another ball each time an impact in the target area is sensed. <IMAGE>
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