公开(公告)号：US11778370B2

公开(公告)日：2023-10-03

申请号：US17247314

申请日：2020-12-07

Applicant: Gulfstream Aerospace Corporation

Inventor： Tongan Wang ,  Scott Bohanan ,  Jim Jordan ,  Matthew Wallace

IPC: H04R1/40 ,  B64D11/00 ,  G10L21/0216 ,  H04R3/00

CPC classification number: H04R1/406 ,  B64D11/0015 ,  H04R1/403 ,  G10L2021/02166 ,  H04R3/005 ,  H04R2201/401 ,  H04R2499/13

Abstract: Audio content is controllably directed to or from an aircraft occupant, such as the pilot or a passenger using a microphone array of at least two transducers, positioned onboard an aircraft to pick up utterances of the aircraft occupant. An electronically steerable transducer array coupled to an onboard an aircraft audio system, such as an avionics communication system or in-flight entertainment system supplies audio content to the aircraft occupant. A signal processor coupled to the microphone array processes utterances sensed by the transducers using a time of arrival algorithm to determine an utterance originating direction. A controller circuit then supplies a pointing direction control signal to the steerable beamforming speaker array or microphone array based on the utterance originating direction to cause the steerable transducer array to direct the audio content in the direction of the sensed utterance and thereby direct the audio content to or from the aircraft occupant.

公开(公告)号：US11758323B2

公开(公告)日：2023-09-12

申请号：US17937607

申请日：2022-10-03

Applicant: Gulfstream Aerospace Corporation

Inventor： Tongan Wang ,  Scott Bohanan ,  Jim Jordan

IPC: H04R3/00 ,  G10K11/16 ,  H04R3/02 ,  B64D47/00 ,  G10K11/178

CPC classification number: H04R3/02 ,  B64D47/00 ,  G10K11/17881 ,  H04R2499/13

Abstract: The improved active noise cancellation system for forced air heating or cooling systems onboard aircraft employs a duct having a proximal end coupled to the fan unit to entrain the airflow stream in the direction of a distal end of the duct. A reference sensor is positioned within the proximal end of the duct. A means is provided for injecting an audio frequency control signal into the airflow stream in a manner that does not substantially impede the airflow stream. An error sensor is positioned at the distal end of the duct where it is responsive to sounds carried by the airflow stream, including the audio frequency control signal. An electronic circuit coupled to the reference sensor and to the error sensor supplies a noise abating control signal to energize the control transducer and thereby substantially reduce at least one noise harmonic of the fan unit through destructive interference.

公开(公告)号：US11724811B2

公开(公告)日：2023-08-15

申请号：US16681625

申请日：2019-11-12

Applicant: Gulfstream Aerospace Corporation

Inventor： Tongan Wang ,  Paul Conti ,  John W. Maxon, Jr.

IPC: B64D13/02 ,  B64F5/10 ,  B64D41/00 ,  G10K11/16 ,  G10K11/168

CPC classification number: B64D13/02 ,  B64D41/00 ,  B64F5/10 ,  G10K11/161 ,  G10K11/168

Abstract: Outflow valve assemblies for an aircraft, aircraft including an outflow valve assembly, and methods for installing an outflow valve assembly on an aircraft, are provided. In one example, an outflow valve assembly includes a louver that is movably disposed to at least partially cover an opening formed through a fuselage on an aircraft. A motor is coupled to the louver and is configured to move the louver between a closed position to obstruct fluid communication through the opening and an open position to allow fluid communication through the opening between inside and outside of the aircraft. A sound absorptive panel is disposed adjacent to the opening to attenuate noise that is generated when the louver is in the open position.

公开(公告)号：US11664004B1

公开(公告)日：2023-05-30

申请号：US18054007

申请日：2022-11-09

Applicant: Gulfstream Aerospace Corporation

Inventor： Tongan Wang ,  Brian G. Cook ,  Scott Bohanan ,  Jim Jordan

IPC: G10K11/178

CPC classification number: G10K11/17854 ,  G10K11/17883 ,  G10K2210/1281

Abstract: To reduce engine noise in the cabin of an aircraft a plurality of error microphones is deployed at predetermined locations within the cabin to produce error microphone response signals associated with the engine noise in the cabin. Engine vibration inputs are obtained from sensors coupled to the aircraft engines. A processor is used to code the error microphone response signals into an encoded modal response in the cabin through a coding matrix. A processor is used to apply an adaptive filter to determine a plurality of modal signals needed to cancel the encoded modal response in the cabin. A processor is used to decode the modal signals into speaker input signals through a decoding matrix. Speaker input signals are then sent to a plurality of speakers to reduce the engine noise in the cabin.

公开(公告)号：US11594242B2

公开(公告)日：2023-02-28

申请号：US17306799

申请日：2021-05-03

Applicant: Gulfstream Aerospace Corporation

Inventor： Tongan Wang ,  Scott Bohanan ,  Jim Jordan

IPC: G10L25/51 ,  G06N20/00 ,  G06F3/16 ,  G06N5/04 ,  G10L15/22 ,  G10L25/18 ,  G10L25/30 ,  H04R1/40 ,  H04R3/00

Abstract: A sound pickup transducer array, deployed within an enclosed area, is coupled to a sound recorder. A processor, coupled to the sound recorder, provides a button or speech recognizer through which a person in the enclosed area issues a command signifying the occurrence of a sound for which categorizing is requested. The processor is programmed to respond to the issued command by extracting and storing an audio snippet copied from the audio recorder, in a digital memory, where the snippet corresponds to sound captured before, during and after the issued command. The processor communicates the stored audio snippet to an artificial intelligence system trained to categorize sounds as to what produced them. The artificial intelligence system may employ trained model feature extraction, a neural network categorization system, and/or direction of sound arrival analysis.

公开(公告)号：US20220322003A1

公开(公告)日：2022-10-06

申请号：US17223328

申请日：2021-04-06

Applicant: Gulfstream Aerospace Corporation

Inventor： Tongan Wang ,  Scott Bohanan ,  Jim Jordan

IPC: H04R3/02 ,  B64D47/00

Abstract: The improved active noise cancellation system for forced air heating or cooling systems onboard aircraft employs a duct having a proximal end coupled to the fan unit to entrain the airflow stream in the direction of a distal end of the duct. A reference sensor is positioned within the proximal end of the duct. A means is provided for injecting an audio frequency control signal into the airflow stream in a manner that does not substantially impede the airflow stream. An error sensor is positioned at the distal end of the duct where it is responsive to sounds carried by the airflow stream, including the audio frequency control signal. An electronic circuit coupled to the reference sensor and to the error sensor supplies a noise abating control signal to energize the control transducer and thereby substantially reduce at least one noise harmonic of the fan unit through destructive interference.

公开(公告)号：US20210139150A1

公开(公告)日：2021-05-13

申请号：US16681625

申请日：2019-11-12

Applicant: Gulfstream Aerospace Corporation

Inventor： Tongan Wang ,  Paul Conti ,  John W. Maxon, JR.

IPC: B64D13/02 ,  B64F5/10 ,  B64D41/00 ,  G10K11/16 ,  G10K11/168

Abstract: Outflow valve assemblies for an aircraft, aircraft including an outflow valve assembly, and methods for installing an outflow valve assembly on an aircraft, are provided. In one example, an outflow valve assembly includes a louver that is movably disposed to at least partially cover an opening formed through a fuselage on an aircraft. A motor is coupled to the louver and is configured to move the louver between a closed position to obstruct fluid communication through the opening and an open position to allow fluid communication through the opening between inside and outside of the aircraft. A sound absorptive panel is disposed adjacent to the opening to attenuate noise that is generated when the louver is in the open position.

公开(公告)号：US12243538B2

公开(公告)日：2025-03-04

申请号：US17446701

申请日：2021-09-01

Applicant: Gulfstream Aerospace Corporation

Inventor： Brian Cook ,  Tongan Wang

IPC: G10L17/22 ,  B64D11/00 ,  G10L17/18

Abstract: The interactive aircraft cabin environment control system employs at least one microphone array disposed within the cabin to capture spoken utterances from a passenger and is configured to provide an estimation of passenger location within the cabin based on arrival time analysis of the spoken utterances. A data source onboard the aircraft provides flight context information. Such data sources include sensors measuring real-time parameters on the aircraft, the current flight plan of the aircraft, singly and in combination. A control processor, coupled to the microphone array, is configured to ascertain passenger identity based on the spoken utterances. The control processor is programmed and configured to learn and associate passenger preference to passenger identity. The control processor is receptive of the estimation of passenger location and is coupled to provide supervisory control over at least one device forming a part of the cabin environment according to passenger location, passenger preference obtained from passenger identity and flight context information.

公开(公告)号：US20230122420A1

公开(公告)日：2023-04-20

申请号：US17502783

申请日：2021-10-15

Applicant: Gulfstream Aerospace Corporation

Inventor： Stefan Eling ,  Justin Maas ,  Bethany Davis ,  Scott Bohanan ,  Jim Jordan ,  Tongan Wang

IPC: B64D11/00 ,  G10L15/26 ,  H04R1/40 ,  G10L15/08

Abstract: The aircraft intercom employs beam steerable microphone arrays and speaker arrays deployed in each of a plurality of zones within the aircraft. A speech recognizer generates recognition text from utterances picked up by the microphone arrays. A direction control processor analyzes the arrival time of signals from the microphone arrays to identify utterance location, which is then used to control the beam direction of at least one steerable speaker array. A dialogue manager processor coupled to the speech recognizer and to each of the plurality of microphone arrays and plurality of speaker arrays responds to a set of predefined keywords to selectively route a voiced communication from a first selected zone to a second selected zone using the microphone array and speaker array disposed in each of the first and second selected zones.

公开(公告)号：US11496831B2

公开(公告)日：2022-11-08

申请号：US17223328

申请日：2021-04-06

Applicant: Gulfstream Aerospace Corporation

Inventor： Tongan Wang ,  Scott Bohanan ,  Jim Jordan

IPC: H04R3/00 ,  G10K11/16 ,  H04R3/02 ,  B64D47/00 ,  G10K11/178

Abstract: The improved active noise cancellation system for forced air heating or cooling systems onboard aircraft employs a duct having a proximal end coupled to the fan unit to entrain the airflow stream in the direction of a distal end of the duct. A reference sensor is positioned within the proximal end of the duct. A means is provided for injecting an audio frequency control signal into the airflow stream in a manner that does not substantially impede the airflow stream. An error sensor is positioned at the distal end of the duct where it is responsive to sounds carried by the airflow stream, including the audio frequency control signal. An electronic circuit coupled to the reference sensor and to the error sensor supplies a noise abating control signal to energize the control transducer and thereby substantially reduce at least one noise harmonic of the fan unit through destructive interference.