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Invention Grant
US08462121B1 Circuit for reading buttons and controlling light emitting diodes 有权
读取按钮和控制发光二极管的电路

Circuit for reading buttons and controlling light emitting diodes
Abstract:
A circuit including a first pin connection, a second pin connection, a first diode-switch arrangement and a second diode-switch arrangement. The first diode-switch arrangement is connected in series and configured to allow a current to pass from the second pin connection to the first pin connection. The second diode-switch arrangement is connected in series and configured to allow a current to pass from the first pin connection to the second pin connection. An energized state of the first and second diode-switch arrangements is determined according to a voltage detected on the first or second pin connection.
Abstract(Chinese):

一种包括第一引脚连接，第二引脚连接，第一二极管开关装置和第二二极管开关装置的电路。 第一二极管开关装置串联连接并且被配置为允许电流从第二引脚连接传递到第一引脚连接。 第二二极管开关装置串联连接并且被配置为允许电流从第一引脚连接传递到第二引脚连接。 根据在第一或第二引脚连接上检测到的电压来确定第一和第二二极管开关装置的通电状态。

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