Patent ID: 9469413
Filing Date: 2016-10-18
CPC Classification: B64C,B64D

Claim Text:
1. A warning circuitry with a warning light circuitry for an exterior door of an aircraft, the warning light circuitry comprising: a first logic gate adapted for receiving a first, a second, a third, and a fourth input signal; a second logic gate adapted for receiving a fifth, a sixth, and a seventh input signal; a third logic gate electrically connected to the first and second logic gate; a warning light electrically connected to the third logic gate; and a buzzer circuitry electrically connected to the warning light circuitry, the buzzer circuitry comprising: a first buzzer logic gate adapted for receiving a first output signal of the first logic gate and the seventh input signal; a second buzzer logic gate adapted for receiving a second output signal of the second logic gate and an additional input signal; a third buzzer logic gate electrically connected to the first and the second buzzer logic gate; and a buzzer electrically connected to the third buzzer logic gate; wherein the first logic gate is adapted for providing the first output signal to the third logic gate upon receiving the first, the second, the third, and the fourth input signals, wherein the second logic gate is adapted for providing the second output signal to the third logic gate upon receiving the fifth, the sixth, and the seventh input signals, wherein the third logic gate is adapted for triggering the warning light upon receiving the first or the second output signal, wherein the first buzzer logic gate is adapted for providing a first buzzer output signal to the third buzzer logic gate upon receiving the first output signal of the first logic gate and the seventh input signal, wherein the second buzzer logic gate is adapted for providing a second buzzer output signal to the third buzzer logic gate upon receiving the second output signal of the second logic gate and the additional input signal, wherein the third buzzer logic gate is adapted for triggering the buzzer upon receiving the first or the second buzzer output signal.