| 摘要 |
<p>The random displacement unit (1), for an amusement machine etc., has at least one of its displacement parameters controlled in dependence on a random data train, supplied by a random data generator. The unit (1) may have an internal battery, or be connected to an external supply and includes at least one drive wheel (3, 4, 5) for displacement of the unit (1) across a flat surface. The unit may have three drive wheels (3, 4, 5) arranged in a triangle coupled to one another, so that they rotate at the same speed and face in the same direction. The random data generator may employ a radioactive isotape, or a semiconductor element.</p> |
