Abstract: A device for sensing predetermined characteristics of an object such as a coin or a token in order to determine its validity or genuineness and in some cases its denomination, the device including a combination of optical and electromagnetic sensors which operate together along a coin path and capable to analyze the coin or token in different positions so that if there are multiple holes or rings of transparent material they can be sensed and used to determine the coin or token's validity and denomination.

Abstract: A device for sensing predetermined characteristics of an object such as a coin in order to determine the validity or genuineness of the coin and in some cases also the size and/or denomination of the coin, the device including a combination of optical sensors and an associated electro-magnetic sensors which operate together to expose the coin in different positions to the field produced by the electro-magnetic sensors so that if there are variations in the coin such as variations in the materials from with the coin is made these can be sensed and used to determine the coin's validity.

Abstract: A coin sorting device is designed to inhibit tampering with a coin operated machine by means of a wire, metal tape or the like, and to further prevent non-acceptable coins from being accepted by the coin-operated machine.