Vendor control circuit
    1.
    发明授权
    Vendor control circuit 失效
    供应商控制电路

    公开(公告)号:US4231105A

    公开(公告)日:1980-10-28

    申请号:US921960

    申请日:1978-07-05

    摘要: A control circuit for a vendor for vending a plurality of items comprising a microprocessor, an electrically alterable memory, a display circuit and an interrogation circuit. Values of parameters, typically prices, associated with the items to be vended are stored in the memory. The interrogation circuit can be activated to retrieve from memory the value of the parameter (e.g., price) associated with any given item. The parameter value is thereupon displayed by the display circuit. The display circuit displays the parameter value retrieved from memory independently of whether the microprocessor has another input equal in value to the value of that parameter. The parameter value stored in the memory for any given item can be altered by the microprocessor.

    摘要翻译: 一种用于供应商的用于售卖包括微处理器,电可更改存储器,显示电路和询问电路的多个物品的控制电路。 与待销售物品相关联的参数值(通常为价格)存储在存储器中。 可以激活询问电路以从存储器检索与任何给定项目相关联的参数值(例如,价格)。 参数值由显示电路显示。 显示电路显示从存储器检索的参数值,而不管微处理器是否具有与该参数的值相等的另一个输入。 存储在任何给定项目的存储器中的参数值可以被微处理器改变。