Abstract: A drone includes a motor, a noise receiver, a camera, a distance measurer, and a directed sound beam generator. The noise receiver is configured to detect a noise caused by the motor. The camera is configured to capture an image of an area when the drone is in the air. The distance measurer is configured to measure a distance between the drone and a particular point in the captured image. The directed sound beam generator is configured to emit a sound beam that is directed to a particular direction. The drone further includes a processor configured to analyze the detected noise to determine a frequency spectrum of the detected noise. The processor is further configured to analyze the captured image to identify a target, and cause the directed sound beam generator to emit a sound beam to actively cancel at least a portion of the noise directed to the target.

Abstract: A drone-based audio system comprising a microphone mounted to a drone body for receiving environmental sound information. The drone-based audio system additionally comprising a processing unit configured to analyze the environmental sound information and calculate active noise cancellation information. The drone-based audio system further comprising a speaker mounted to the drone body for emitting the active noise cancellation information.

Abstract: A rotor-based remote flying vehicle includes one or more sensors. The one or more sensors are configured to generate data corresponding to an impact of at least one rotor of the rotor-based remote flying vehicle. The generated sensor data is accessed by a processing unit of the rotor-based remote flying vehicle. The processing unit is configured to characterize a detected impact by identifying at least one of an object type with which contact is occurring or a severity level of the impact. The processing unit may further be configured to analyze the received sensor data, the determined object type, and/or the determined severity level in order to determine one or more appropriate actions to take in response to the detected impact.