Microcomputer timer
    1.
    发明授权
    Microcomputer timer 失效
    微电脑定时器

    公开(公告)号:US4864549A

    公开(公告)日:1989-09-05

    申请号:US17311

    申请日:1987-02-20

    申请人: Morris L. Hoole

    发明人: Morris L. Hoole

    摘要: A single chip programmable microcomputer timer for use in car washers, air dispensing machines, pay showers, suntan salons, vacuum equipment and the like. The timer unit is designed with a 4,000 bit microcomputer chip and contains a large scale integrated (LSI) circuit comprising a central processing unit (CPU), a read only memory (ROM) for program storage and a random access memory (RAM) for general data usage. The microcomputer functions to display a friendly message to the user of the timer and to display a diagnostic message on the timer's visual display when an error is recognized by the computer. The computer will flash the visual display at a predetermined time near the end of the cycle. Two programming buttons on the timer permit the coin inventory to be examined and/or cleared in conjuction with a nonvolatile memory designed in the computer. The computer also performs other functions all of which make the timer a very useful device for its many possible applications.

    摘要翻译: 用于汽车洗衣机,空气分配机,付费淋浴,晒黑沙龙,真空设备等的单芯片可编程微计算机定时器。 定时器单元设计有一个4,000位的微型计算机芯片,并且包含一个大规模集成(LSI)电路,包括一个中央处理单元(CPU),一个用于程序存储的只读存储器(ROM)和一个用于一般的随机存取存储器 数据使用。 微计算机用于向定时器的用户显示友好的消息,并且当计算机识别出错误时,在定时器的可视显示器上显示诊断消息。 计算机将在周期结束附近的预定时间闪烁视觉显示。 定时器上的两个编程按钮允许在计算机中设计的非易失性存储器中检查和/或清除硬币清单。 计算机还执行其他功能,这些功能使定时器成为其许多可能应用的非常有用的设备。