Drone noise cancellation using sound beams
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United States of America Patent
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May 21, 2024
Grant Date -
Oct 27, 2022
app pub date -
Apr 19, 2022
filing date -
Apr 19, 2022
priority date (Note) -
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status (Latency Note)
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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.
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International Classification(s)
- G10K:SOUND-PRODUCING DEVICES
- G06T:IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G10L:SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION
- H04R:LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR ....
- G05D:SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC....
- B64D:EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SU....
- B64C:AEROPLANES; HELICOPTERS
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