초록

A price interface for use in connecting a calculating and control unit with a multiprice vending apparatus, the price interface including a first register for storing the initial price value during a vending cycle and a second register for storing the current price value during the vending cycle.

대표청구항 ▼

A price interface for use with a multiprice vending machine or the like and a vending machine control circuit in a vending system which comprises product selection means, means for producing a price selection signal having a price value corresponding to a selected product which price value may chang

A price interface for use with a multiprice vending machine or the like and a vending machine control circuit in a vending system which comprises product selection means, means for producing a price selection signal having a price value corresponding to a selected product which price value may change during the system\s vending cycle, means for comparison of a price value with the value of a vending system user\s original credit, means for vending the selected product, and means for deducting a price value from the user\s original credit, the price interface comprising a first register for capturing and storing a first price value which is the price value detected at the beginning of the vending cycle, means for comparing the first price value with a current price value detected later during the vending cycle, and means for determining whether the first price value or the current price value is representative of the product actually vended and transmitting that price value to the means for deducting a price value from the user\s original credit.