Apparatus and method for converting a non-logic-family signal level to a logic-family signal level
    1.
    发明授权
    Apparatus and method for converting a non-logic-family signal level to a logic-family signal level 失效
    用于将非逻辑系列信号电平转换为逻辑系列信号电平的装置和方法

    公开(公告)号:US06172523B2

    公开(公告)日:2001-01-09

    申请号:US09163431

    申请日:1998-09-30

    IPC分类号: H03K19082

    CPC分类号: H03K19/0175 H04L25/028

    摘要: A system and method for translating a non-logic-family signal level into a logic-family signal level, the system comprising: a source of a non-logic-family signal that can assume a first and a second non-logic-family state; and a translator for determining whether the signal is in the first non-logic-family state, and if so, providing a translated signal having a first-logic family level. The translator can take the form of a comparator controlling an output transistor tied to a pull-up resistor, or a programmed processor. Examples of the logic-families include transistor-transistor logic (TTL) and complimentary metal oxide semiconductor (CMOS) logic. Examples of sources of non-logic-family signals includes a light emitting diode, a buzzer and a beeping device.

    摘要翻译: 一种用于将非逻辑系列信号电平转换为逻辑系列信号电平的系统和方法,所述系统包括:非逻辑系列信号的源,其可以采用第一和第二非逻辑系列状态 ; 以及用于确定信号是否处于第一非逻辑系列状态的翻译器,如果是,则提供具有第一逻辑系列级的转换信号。 转换器可以采用比较器的形式来控制与上拉电阻器或编程处理器相连的输出晶体管。 逻辑系列的例子包括晶体管晶体管逻辑(TTL)和互补金属氧化物半导体(CMOS)逻辑。 非逻辑系列信号源的示例包括发光二极管,蜂鸣器和蜂鸣器。