Coin selector employing logic gates - with programmed passive memory storing limit values of valid coins

Discriminateur logique de pieces de monnaie


The coin selector employs a coin detector, which supplies an output signal dependant on the dia. and metal composition of the coins. The output signal is supplied to an AND gate (3), via an A/D converter if the output signal is in analogue form, the other input of the AND gate (3) coupled to a clock pulse generator (4). The recorded count value of a counter (5) coupled to the output of the AND gate (3) is stored by a register (6). A programmed passive memory (7) stores the limit values of valid coins and receives the information from the register (6), to supply a signal representing the coin characteristics to an output register (10). Pref. a logic comparator (8) and a logic circuit (9) are also included.




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Cited By (7)

    Publication numberPublication dateAssigneeTitle
    EP-0053735-A1June 16, 1982Ascom Autelca AgSchaltungsanordnung in einem Münzprüfer
    EP-0086648-A2August 24, 1983Mars IncorporatedDispositif pour examiner des pièces de monnaie
    EP-0086648-A3July 25, 1984Mars IncorporatedCoin testing apparatus
    EP-0164110-A2December 11, 1985Tamura Electric Works, Ltd.Coin discrimination apparatus
    EP-0164110-A3August 26, 1987Tamura Electric Works, Ltd.Coin discrimination apparatus
    FR-2692063-A1December 10, 1993Azkoyen Ind SaProcédé pour le contrôle de pièces de monnaie.
    WO-8303154-A1September 15, 1983Ramseier, Hans, Messerli, WalterAppareil pour la verification de pieces de monnaie de diametres ou d'epaisseurs differentes