公开(公告)号：US11853083B2

公开(公告)日：2023-12-26

申请号：US17517513

申请日：2021-11-02

Applicant: The Boeing Company

Inventor： Nathan D. Hiller

IPC: G05D1/10 ,  B64C39/02 ,  H04B7/185 ,  B64U20/10 ,  B64U50/34 ,  B64U10/13 ,  B64U101/20 ,  B64U101/00 ,  B64U101/15

CPC classification number: G05D1/104 ,  B64C39/024 ,  B64U20/10 ,  B64U50/34 ,  H04B7/185 ,  B64U10/13 ,  B64U2101/00 ,  B64U2101/15 ,  B64U2101/20 ,  B64U2201/102

Abstract: Methods, Systems, and Apparatus for coordinating drones to communicate with reduced signal to noise, harvest energy, or provide camouflage.

公开(公告)号：US11741936B2

公开(公告)日：2023-08-29

申请号：US17401667

申请日：2021-08-13

Applicant: Department of the Army

Inventor： Jackson Yeboah

IPC: H04B1/00 ,  G10K11/178 ,  B64C39/02 ,  H04R3/00 ,  B64U20/10 ,  B64U50/14

CPC classification number: G10K11/1785 ,  B64C39/024 ,  B64C2220/00 ,  B64U20/10 ,  B64U50/14 ,  G10K2210/1281

Abstract: An advanced acoustic awareness platform configured to classify environmental sounds. The advanced acoustic awareness platform comprises an audio signal acquisition sensor array and one or more processors programmed to augment the audio signal, extract features for the audio signal, visualize, and classify the signal using one or more labels. In at least one embodiment, the signal is classified based on transfer learning associated with a pretrained machine learning model.

公开(公告)号：US20250022451A1

公开(公告)日：2025-01-16

申请号：US18753708

申请日：2024-06-25

Applicant: Alan Richard Greenberg

Inventor： Alan Richard Greenberg

IPC: G10K11/178 ,  B64C39/02 ,  B64U10/13 ,  B64U20/10 ,  B64U20/20 ,  B64U30/20 ,  B64U30/29 ,  B64U50/14

Abstract: Rotor noise cancellation through the use of mechanical means for a personal aerial drone vehicle. Active noise cancellation is achieved by creating an antiphase amplitude wave by modulation of the propeller blades, by utilizing embedded magnets through an electromagnetic coil encircling the propeller blades. A noise level sensor signals the rotor control system to adjust the frequency of the electromagnetic field surrounding the rotor and control the speed of the rotor. An additional method comprises of incorporating a phase lock loop within the control system configured to determine the frequencies corresponding to the rotors and generate corrective audio signals to achieve active noise cancellation.

公开(公告)号：US11657795B2

公开(公告)日：2023-05-23

申请号：US17492617

申请日：2021-10-03

Applicant: Alan Richard Greenberg

Inventor： Alan Richard Greenberg

IPC: G10K11/178 ,  B64C39/02 ,  B64U20/10 ,  B64U30/20 ,  B64U50/14

CPC classification number: G10K11/178 ,  B64C39/024 ,  B64U20/10 ,  B64U30/20 ,  B64U50/14 ,  G10K2210/1281

Abstract: Rotor noise cancellation through the use of mechanical means for a personal aerial drone vehicle. Active noise cancellation is achieved by creating an antiphase amplitude wave by modulation of the propeller blades, by utilizing embedded magnets through an electromagnetic coil encircling the propeller blades. A noise level sensor signals the rotor control system to adjust the frequency of the electromagnetic field surrounding the rotor and control the speed of the rotor. An additional method comprises of incorporating a phase lock loop within the control system configured to determine the frequencies corresponding to the rotors and generate corrective audio signals to achieve active noise cancellation.

公开(公告)号：US12033608B2

公开(公告)日：2024-07-09

申请号：US18136308

申请日：2023-04-18

Applicant: Alan Richard Greenberg

Inventor： Alan Richard Greenberg

IPC: G10K11/178 ,  B64C39/02 ,  B64U20/10 ,  B64U30/20 ,  B64U50/14

CPC classification number: G10K11/178 ,  B64C39/024 ,  B64U20/10 ,  B64U30/20 ,  B64U50/14 ,  G10K2210/1281

Abstract: Rotor noise cancellation through the use of mechanical means for a personal aerial drone vehicle. Active noise cancellation is achieved by creating an antiphase amplitude wave by modulation of the propeller blades, by utilizing embedded magnets through an electromagnetic coil encircling the propeller blades. A noise level sensor signals the rotor control system to adjust the frequency of the electromagnetic field surrounding the rotor and control the speed of the rotor. An additional method comprises of incorporating a phase lock loop within the control system configured to determine the frequencies corresponding to the rotors and generate corrective audio signals to achieve active noise cancellation.

公开(公告)号：US11993408B2

公开(公告)日：2024-05-28

申请号：US17415395

申请日：2019-12-04

Applicant: SAFRAN AIRCRAFT ENGINES

Inventor： Michel Dumas ,  Laurent Christophe Francis Villaines

IPC: B64U20/10 ,  B64D7/00 ,  F01D5/14 ,  F01D9/02 ,  F01D17/16 ,  F02C3/04 ,  F02C7/042 ,  F02K3/06 ,  F04D19/00 ,  F04D29/18 ,  F04D29/54

CPC classification number: B64U20/10 ,  B64D7/00 ,  F01D5/141 ,  F01D9/02 ,  F01D17/162 ,  F02C3/04 ,  F02C7/042 ,  F02K3/06 ,  F04D19/002 ,  F04D29/181 ,  F04D29/544 ,  F05D2220/3217 ,  F05D2220/323 ,  F05D2240/12 ,  F05D2250/711 ,  F05D2250/712 ,  F05D2260/96

Abstract: A bladed disc for masking a moving disc of a jet engine, including blades, each blade including a pressure-side wall and a suction-side wall that meet at a leading-edge and at a trailing edge, and wherein each blade has a pressure-side wall and a suction-side wall each including a concave zone and a convex zone that are at a distance from the leading-edge and from the trailing edge and are spaced apart from one another, these concave zones and these convex zones each extending over the majority of the height of the blade, the concave zone of the pressure-side wall is opposite the convex zone of the suction-side wall, the concave zone of the suction-side wall is opposite the convex zone of the pressure-side wall.

公开(公告)号：US20240103535A1

公开(公告)日：2024-03-28

申请号：US18521204

申请日：2023-11-28

Applicant: The Boeing Company

Inventor： Nathan D. Hiller

IPC: G05D1/10 ,  B64C39/02 ,  B64U20/10 ,  B64U50/34 ,  H04B7/185

CPC classification number: G05D1/104 ,  B64C39/024 ,  B64U20/10 ,  B64U50/34 ,  H04B7/185 ,  B64U10/13

Abstract: Methods, Systems, and Apparatus for coordinating drones to communicate with reduced signal to noise, harvest energy, or provide camouflage.

公开(公告)号：US11691715B2

公开(公告)日：2023-07-04

申请号：US16265314

申请日：2019-02-01

Applicant: AeroVironment, Inc.

Inventor： Christopher Eugene Fisher ,  Steven Bradley Chambers ,  Pavil Belik ,  Austin Craig Gunder ,  John Peter Zwaan

IPC: B64C5/02 ,  B64C39/02 ,  B64C3/10 ,  B64C5/06 ,  B64C9/00 ,  B64C39/12 ,  B64U10/25 ,  B64U20/10

CPC classification number: B64C5/02 ,  B64C3/10 ,  B64C5/06 ,  B64C9/00 ,  B64C39/024 ,  B64C39/12 ,  B64U10/25 ,  B64U20/10

Abstract: An aircraft apparatus is disclosed that has a fuselage boom having proximal and distal ends, a wing coupled to a proximal end of the fuselage boom and at least one transparent stabilizer coupled to a distal end of the fuselage boom.

公开(公告)号：US20230113483A1

公开(公告)日：2023-04-13

申请号：US18076643

申请日：2022-12-07

Applicant: Stephen Favis

Inventor： Stephen Favis

IPC: B64C39/02 ,  B64D7/04 ,  B64D1/04 ,  B64U50/10 ,  B64U20/87 ,  B64U20/10 ,  G05D1/08

Abstract: An aerial vehicle platform, which may be unmanned, includes an engine rotatable along multiple axes to provide various modes of flight and movement. The platform may be scaled for different purposes. The purposes may range from defense, to reconnaissance, and to civilian or commercial applications. Other applications may also benefit from the embodiments disclosed. Embodiments may include a gimbal hub to control the orientation of the engine along different axes.

公开(公告)号：US20250044802A1

公开(公告)日：2025-02-06

申请号：US18592852

申请日：2024-03-01

Applicant: The Boeing Company

Inventor： Nathan D. Hiller

IPC: G05D1/00 ,  B64C39/02 ,  B64U10/13 ,  B64U20/10 ,  B64U50/31 ,  B64U50/34 ,  B64U80/70 ,  B64U101/00 ,  B64U101/15 ,  B64U101/20 ,  B64U101/30 ,  H04B7/185

Abstract: Methods, Systems, and Apparatus for coordinating drones to communicate with reduced signal to noise, harvest energy, provide camouflage, provide decoying, or provide protective shielding.