| 摘要 |
System characterized in that there are, against the surface of the actual bull's-eye, two linear sensors for picking up the image lines of the surface of the bull's- eye, which sensors are arranged at 90 degree with respect to one another, thereby defining two supposed image lines of the screen which cover, with sweeping of each one of them, the totality of the surface of the bull's-eye, and the signals derived from the impression received are sent to the module of the CPU, of the logic board of the machine, with the result that said sweepings of the actual surface of the bull's-eye reproduce, in reduced form, the bull's-eye itself, although in only two dimensions with all the darts adhering to it. <IMAGE>
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