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Credit and bank issued debit card operated system and method for controlling a vending machine

  • US 6,152,365 A
  • Filed: 02/20/1997
  • Issued: 11/28/2000
  • Est. Priority Date: 12/12/1994
  • Status: Expired due to Term
First Claim
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1. A combination credit card terminal and debit card terminal system for vending use of a computer by a user comprising:

  • a) a computer;

    b) a magnetic card reader configured to function as a credit card terminal and a debit card terminal wherein said debit card terminal can receive a prepaid card, and said magnetic card reader is coupled to the computer and configured to enable/disable use of the computer by the user, by being responsive to the received prepaid card or the credit card;

    c) a printer coupled to the magnetic card reader, wherein the magnetic card reader is configured to monitor and control use of the printer, and the magnetic card reader receives input pulses from the printer via an interface circuit;

    d) an input signal conditioning circuit for receiving the input pulses from the printer and providing conditioned input pulses; and

    e) an isolation circuit for receiving the conditioned input pulses and providing an isolated output signal to the magnetic card reader, whereby the isolation circuit is AC coupled to the input pulses.

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