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SPACE PATENTS BY
Aerospace Assignees
Aerospace Inventors
Time Lines

Altitude estimator for a rotary-wing drone with multiple rotors

Invented by: Henri Seydoux
Paris, FR

Francois Callou
Paris, FR

Mathieu Babel
Paris, FR Applicant: Name City State Country Type Parrot Paris N/A FR

Originally Assigned to: Parrot
Paris, FR Family ID: 1000000995767
[Now assigned to . . .]

Issued:2015-03-24
Filed:2013-03-12
Application No:13797781
Examined by:Black; Thomas G

The drone comprises altitude determination means (134), with an estimator (152) combining the measures of an ultrasound telemetry sensor (154) and of a barometric sensor (156) to deliver an absolute altitude value of the drone in a terrestrial system. The estimator comprises a predictive filter (152) incorporating a representation of a dynamic model of the drone making it possible to predict the altitude based on the motor commands (158) and to periodically readjust this prediction as a function of the signals delivered by the telemetry sensor (154) and the barometric sensor (156). Validation means analyze the reflected echoes and possibly modify the parameters of the estimator and/or allow or invalidate the signals of the telemetry sensor. The echo analysis also makes it possible to deduce the presence and the configuration of an obstacle within the operating range of the telemetry sensor, to apply if need be a suitable corrective action.

[pdf] U.S. Pat. No. 8,989,924

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This information is part of a study by Oasis Global, Inc. of all space inventions filed at the United States Patent and Trademark Office, and is provided for informational purposes only. It is not an endorsement of any particular assignee, inventor or invention. Although Peter A. Koziol represents inventors and assignees of space inventions he does not represent all of the inventors and assignees listed. The prosecuting attorney agent or firm for each patent is identified by the United States Patent and Trademark Office in the patent specfication, which can be viewed by clicking on the patent image or downloading the patent document. For more information regarding Mr. Koziol's background and experience, or to learn more about space inventions, please contact Mr. Koziol.

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