| 摘要 |
<p>A timing system for swimming race which surely records, displays, and outprints of the time of race is disclosed. A mask circuit controls each signal and enables the timing system to exactly perceive a swimmer's touch of a touch panel. The touch panel is positioned at the wall of a swimming pool and comprises a rear member having a vertical and a longitudinal portion. A front member is connected to a top edge member. Switch means are provided between the vertical portion and the rear member. Between the top edge member and the rear member elastic biasing means are provided which are responsive to a force applied obliquely to the top edge member by a swimmer's touch. <IMAGE></p> |
