| 摘要 |
<p>An automatic scoring apparatus (20) for a dart game utilizing a plurality of light detecting elements (36, 38) situated on the periphery of a dart board (28) is disclosed. These light detecting elements (36, 38), are aligned to receive light emitted by a plurality of light sources (32, 34) so that a dart (30) embedded in the dart board (28) will block the path of light from the light sources (32, 34) to the light detecting elements (36, 38). A microprocessor and associated electronic circuitry continually scan the light detecting elements (36, 38) to detect a decrease in the amount of light incident on any particular light detecting elements indicative of the presence of a dart (30) in the dart board (28). The location of the dart (30) is calculated mathematically from the shadow location information.</p> |
