| 摘要 |
<p>An apparatus for programming and controlling the seizing of a handle of a ball-hitting instrument and the guiding of the instrument by a player during striking of a ball in a ball game, comprising an apparatus casing (120) a housing therein for a source (5) of electric direct current and an electronic circuit mounted in said casing having a circuit board (4), on-off-switch means (6), an integrated circuit chip means (20;127), preferably a single-chip microprocessor, switching and control means (7,17,12,22;129,131,135,139,142) adapted to respond to the entire rhytm of the sequence of movements of the ball-hitting instrument, means for programming the motional sequence of the entire rhytmics of the ball-hitting instrument, means for controlling the run-off of the program, and means (9,133) for producing an easily noticeable signal indicating at least one of the correct and incorrect motional sequences of the entire rhytmics of the ball-hitting instrument, whereby the complete sequence of motional phases during forehand play, backhand play and service of a ball with the aid of a bat can be programmed as well as controlled by comparison with a master program produced with the above apparatus, independently of whether the player is right-handed or left-handed.</p> |
