| 摘要 |
METHOD AND APPARATUS FOR CHECKING COINS A method and an apparatus for checking coins are proposed, in which thecoin is guided in a coin channel, the coin edge is irradiated and the reflected radiation detected. By means of a slit or the like, the coin edge is irradiated and scanned in strip-like manner at right angles to the coin channel in such a way that the reflection differences occurring when there are grooves on the coin edge are supplied in the form of an a.c. signal.
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