Within Cabin Or Compartment Of Vehicle Patents (Class 381/71.4)
  • Patent number: 11087734
    Abstract: The present disclosure provides an active noise reduction method, a system, and a new energy vehicle. The active noise reduction method includes: obtaining a frequency of a high-frequency noise signal in an acoustic environment, constructing and generating a harmonic masking signal according to the frequency of the high-frequency noise signal, where the harmonic masking signal includes a harmonic signal and a masking signal, and the harmonic signal is a subharmonic wave of the high-frequency noise signal, and inputting the harmonic masking signal into a sound playback apparatus for playback to output a noise reduction construction sound, and performing noise reduction on the acoustic environment.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: August 10, 2021
    Assignee: BYD COMPANY LIMITED
    Inventors: Yaxuan Sun, Yongji Zhao
  • Patent number: 11049489
    Abstract: A system for controlling an engine tone by an artificial intelligence based on a sound quality index of a vehicle may include a sound output device for generating a reinforcing sound to reinforce an engine sound of the vehicle; an engine characteristic measurement sensor for measuring sound source characteristics of the engine sound; an interior noise measurement sensor for detecting interior noise of the vehicle; a signal processing controller that receives signals from the engine characteristic measurement sensor in real time and controls the sound output device such that the engine sound reaches a target tone; and a tone control operation unit connected to the signal processing controller to optimize the sound quality index such that the engine sound reaches the target tone through the artificial intelligence.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: June 29, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: In-Soo Jung, Dong-Chul Lee
  • Patent number: 11043200
    Abstract: A vehicle sound control device includes: a motor rotation speed detector (2) configured to detect the rotation speed of a motor that drives a vehicle; a speaker (4) configured to produce a vehicle interior sound including a motor sound changing in accordance with the rotation speed of the motor in an interior of the vehicle; an emphasizing order setting unit (6) configured to determine an order component to be emphasized in the motor sound in accordance with the rotation speed detected by the motor rotation speed detector (2); and a vehicle interior sound control unit (7) configured to control the vehicle interior sound produced by the speaker (4) so that the emphasizing order component determined by the emphasizing order setting unit (6) is emphasized. The emphasizing order setting unit (6) determines the order component to be emphasized so that a higher order component is emphasized as the rotation speed increases.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: June 22, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Naohisa Uesugi, Yasuhiko Miura
  • Patent number: 10978039
    Abstract: A vehicle includes a passenger capsule, a seat, and a sound suppression system. The passenger capsule includes a headliner. The seat is positioned within the passenger capsule. The seat includes a headrest. The sound suppression system includes one or more speakers and a controller. The one or more speakers are at least one of (i) positioned within the headrest or (ii) positioned within the headliner. The controller is configured to control the one or more speakers to emit sound waves having at least one of a target frequency or a target amplitude to generate a noise suppression zone that projects outward from at least one of the headrest or the headliner toward a passenger sitting in the seat to suppress one or more low frequency sound waves perceived by the passenger.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: April 13, 2021
    Assignee: Oshkosh Corporation
    Inventors: Daniel R. Seffernick, Peter D. Vande Hey
  • Patent number: 10968841
    Abstract: Skip fire engine control using a first order sigma delta based firing controller is described. An engine controller determines a skip fire firing fraction and (as appropriate) associated engine settings that are suitable for delivering a requested output. The operational firing fraction is selected from a set of available firing fractions. The engine controller uses a first order sigma delta based converter to direct working cycle firings in a skip fire manner that delivers the selected firing fraction. The converter includes or functions substantially equivalent to a first order sigma delta converter and may be implemented any of: algorithmically using a processor; using digital, analog or hybrid components; using a lookup table; or using other appropriate techniques. In some embodiments firing decisions are made on a working cycle by working cycle basis. The described approach may be used in gasoline engines, diesel engines, turbocharged or supercharged engines, or others.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: April 6, 2021
    Assignee: TULA TECHNOLOGY, INC.
    Inventors: Mohammad R. Pirjaberi, Adya S. Tripathi, Louis J. Serrano
  • Patent number: 10945072
    Abstract: Disclosed herein are a method for extracting voice signals of a plurality of users, and a terminal device and a robot implementing the same. The robot includes a plurality of microphones respectively corresponding to a plurality of users, a memory and a processor, where the processor extracts a plurality of voice signals output by each of the plurality of users using a plurality of sound signals received by each of the plurality of microphones, and in this case, the processor reverses a phase of at least one of other sound signals received respectively by at least one of other microphones except an i-th microphone, and extracts an i-th voice signal output by an i-th user corresponding to the i-th microphone based on a i-th sound signal received by the i-th microphone and based on at least one of other sound signals, the phase of which is reversed.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: March 9, 2021
    Assignee: LG ELECTRONICS INC.
    Inventor: Jungkwan Son
  • Patent number: 10891937
    Abstract: A noise controller includes: a noise detector; a control filter that performs signal processing on a noise signal using a control factor; a speaker that reproduces an output signal from the control filter; an error microphone that detects a residual noise at a control point; a transmission characteristics correction filter that performs signal processing on the noise signal, using characteristics of sound transmission from the speaker to the error microphone; a factor updater that updates the control factor; a correction filter that performs signal processing on an output signal from the control filter, using the characteristics of sound transmission; a subtractor that subtracts, from an error signal indicative of the residue noise, an output signal from the correction filter; and an effect measuring unit that measures a noise reduction effect at the control point based on a difference between an output signal from the subtractor and the error signal.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: January 12, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventor: Hiroyuki Kano
  • Patent number: 10839786
    Abstract: An audio system including an accelerometer positioned to produce an accelerometer signal representative of road noise within a vehicle cabin; a microphone operably positioned within the vehicle to receive the road noise and to produce a microphone signal having a road-noise component; and a cabin road-noise canceler, comprising a cabin road-noise cancellation filter, configured to receive the accelerometer signal and to produce a cabin road-noise cancellation signal, wherein the cabin road-noise cancellation signal is provided to an acoustic transducer for transduction of an acoustic road-noise cancellation signal, the acoustic road-noise cancellation signal minimizing the road noise within at least one cancellation zone in the vehicle cabin; a microphone road-noise canceler, comprising a microphone road-noise cancellation filter, configured to receive the cabin road-noise signal and the microphone signal and to minimize the road-noise component of the microphone signal according to the cabin road-noise cance
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: November 17, 2020
    Assignee: Bose Corporation
    Inventors: Cristian M. Hera, Elie Bou Daher, Vigneish Kathavarayan, Ankita D. Jain
  • Patent number: 10789933
    Abstract: An adaptive filter calculates frequency domain coefficients and in the frequency domain dynamically adjusts a leakage/step size parameter that controls adaptation of the adaptive filter based on the calculated frequency domain coefficients (e.g., based on a peak magnitude of the coefficients among frequency bins or on the magnitude of the coefficient of the corresponding frequency bin). The adaptive filter calculates the coefficients based on frequency domain input and error signals, dynamically adjusts a frequency domain coefficient magnitude limit parameter based on the calculated frequency domain coefficients (e.g., approximately proportionally to a peak magnitude of the coefficients among frequency bins) and uses the dynamically adjusted frequency domain coefficient magnitude limit parameter to limit a magnitude of the calculated frequency domain coefficients. The limit may be engaged above a frequency bin based on the peak magnitude frequency bin. An ANC system may employ the filter.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: September 29, 2020
    Assignee: Cirrus Logic, Inc.
    Inventors: Ning Li, Dayong Zhou
  • Patent number: 10755689
    Abstract: An aircraft cabin system includes a plurality of modular displays disposed in an cabin and a server connected to each of the modular displays. Each of the plurality of modular displays includes a microphone that captures ambient noise in the cabin and a speaker that emits a noise reduction sound. The server instructs each of the plurality of modular displays to capture the ambient noise during a preselected flight phase. The server receives, from each of the plurality of modular displays, a digital ambient noise signal generated based on the ambient noise. The server generates for each of the plurality of modular displays a digital ambient noise reduction signal with an inverted phase of the digital ambient noise signal and a dynamic amplitude that is calculated to yield a highest level of ambient noise reduction. The server sends the digital ambient noise reduction signal to each of the plurality of modular displays.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: August 25, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Sasha Dean-Bhïyan, Renato Seiji Morita, Victor-Daniel Gheorghian
  • Patent number: 10755691
    Abstract: Systems, methods, and computer-readable media are disclosed for acoustic control of a vehicle's interior. Example methods may include detecting environmental sounds external to a cabin of a vehicle and determining at least one first sound from the environmental sounds, wherein the cabin is configured to reduce a volume of the environmental sounds below a threshold; determining location information comprising a direction and a distance of the first sound with respect to the vehicle; and generating a second sound based on the first sound and the location information that reproduces a spectral feature of the first sound.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: August 25, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: David Michael Herman, Nunzio DeCia, Nicholas Scheufler, Stephen Jay Orris
  • Patent number: 10748519
    Abstract: A signal processing apparatus includes a signal processor configured to: generate a first noise reduction signal using an adaptive filter based on a signal output from a first input apparatus, and cause the generated first noise reduction signal to be output by a first output apparatus; and generate a second noise reduction signal using a feedback filter based on a signal output from a second input apparatus, and cause the generated second noise reduction signal to be output by a second output apparatus. The feedback filter has a fixed feedback coefficient. The first input apparatus is located at a first noise-cancellation target location in an environment, and the second input apparatus is located at a second noise-cancellation target location in the environment, which may be different from the first noise-cancellation target location.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: August 18, 2020
    Assignee: Sony Corporation
    Inventors: Tetsunori Itabashi, Kohei Asada, Shigetoshi Hayashi, Kenichi Makino, Kazuma Yoshii
  • Patent number: 10744839
    Abstract: Provided is an electromagnetic suspension apparatus capable of achieving both of vibration isolation performance and road holding performance. The electromagnetic suspension apparatus includes an electromagnetic actuator, an information acquisition unit that acquires information on a stroke speed of the electromagnetic actuator and a state quantity of the vehicle, a plurality of filters in which individual gain characteristics are respectively set, a filter setting unit that selectively sets a filter having a gain characteristic suitable for the state quantity of the vehicle from among the plurality of filters, a filter processing unit that performs a filtering process on a stroke speed signal using the filter set by the filter setting unit, and a drive control unit that controls driving of the electromagnetic actuator based on relationship information between the stroke speed after the filtering process and a damping force corresponding to the stroke speed.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: August 18, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoshi Ohno, Tomoya Toyohira, Takafumi Kato, Atsuhiko Yoneda
  • Patent number: 10714116
    Abstract: Various technologies described herein pertain to active noise cancellation in the interior of a vehicle. In exemplary embodiments, a microphone mounted on the vehicle outputs an audio signal indicative of noise emitted by a noise source. A computing system of the vehicle determines a position of the noise source based upon sensor signals output by sensors mounted on the vehicle. The computing system further determines a position of a passenger in the vehicle based upon a sensor mounted inside the vehicle. The computing system generates a complementary signal that is configured to attenuate the noise based upon the audio signal, the position of the noise source, and the position of the passenger. The complementary signal is then output by way of a speaker in the interior of the vehicle.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: July 14, 2020
    Assignee: GM Cruise Holdings LLC
    Inventors: Marko Tintor, Matt Fornero
  • Patent number: 10667052
    Abstract: A speaker module, and an audio compensation method and apparatus and relates to the field of terminal technologies. The speaker module includes an audio component and a speaker board. A power contact, a ground contact, and a general-purpose input/output (GPIO) contact are disposed on the speaker board, and a connecting component is disposed between the audio component and the speaker board. A connection status of the GPIO contact is any one of the following. The connecting component is a conductor, and the GPIO contact is conducted to the power contact using the connecting component, the connecting component is a conductor, and the GPIO contact is conducted to the ground contact using the connecting component, or the connecting component is a non-conductor, and the GPIO contact is disconnected from both the power contact and the ground contact.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: May 26, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Dong Tang
  • Patent number: 10643598
    Abstract: A method of operating a vehicle sound system to enhance the driving experience of vehicle occupants. A vehicle-mounted sensor (such as a LIDAR or RADAR system) is used to identify an object in the vehicle environment. A database that may be stored on a remote server is queried, the database containing, in electronic form, a sound stored therein associated with the object. The sound may be a desirable or pleasant sound. The sound is download to the vehicle sound system and the sound system generates the sound in a vehicle cabin for enjoyment by the occupants. Other ambient sounds may be detected by an exterior microphone of the vehicle, characteristics and locations of the sound added to the database. A vehicle noise reduction system may be activated as the vehicle approaches the location when it is determined that the characteristic indicates that the ambient sound is undesirable.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: May 5, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Marcus Hoggarth, David Mingay, Pierre Bernuchon, Harriet Dodds, Liberty Fearns
  • Patent number: 10621858
    Abstract: System, methods, and other embodiments described herein relate to improving situational awareness of a user. In one embodiment, a method includes, in response to acquiring, in a personal device, sensor data from a set of sensors that perceive a surrounding environment of the user, identifying from the sensor data one or more objects in the surrounding environment relative to the user. The method includes determining a threat to the user from the one or more objects according to at least trajectories of the one or more objects embodied in the sensor data. The method includes generating, via the personal device, an indicator to inform the user of the one or more objects according to the threat.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: April 14, 2020
    Assignee: Toyota Research Institute, Inc.
    Inventors: Jonathan DeCastro, Frank Permenter, Soonho Kong, Nikos Arechiga Gonzalez
  • Patent number: 10580399
    Abstract: A road noise cancellation (RNC) system may include a signal analysis controller for detecting non-stationary, transient events based on sensor signals having a spectral or temporal character significantly different from steady-state road or cabin noise. Upon detection of such non-stationary events, the RNC system may modify the sensor signals to mask the non-stationary event, thereby preventing the RNC system's adaptive filters from mis-adapting because of transient, non-stationary events. Alternatively, the RNC system may pause or slow or pause adaptation of its controllable filters for the duration of a frame that includes the non-stationary event.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: March 3, 2020
    Assignee: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
    Inventor: Kevin J. Bastyr
  • Patent number: 10573290
    Abstract: A virtual engine sound system for a vehicle includes: a speaker mounted on an intake system, and generating an anti-noise sound with inverted phase to an engine noise of an internal combustion engine or a virtual sound; and a valve which is movable between an open position in which an outlet of an air cleaner is opened and a closed position in which the outlet of the air cleaner is closed. The speaker is controlled by an ECU, and the valve is controlled by a valve controller. The ECU controls the speaker to generate the anti-noise sound in an operating condition in which the internal combustion engine is operating, and controls the speaker to generate the virtual sound in an operating condition in which the internal combustion engine is not operating.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: February 25, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jong Wan Han, Seung Mo Ko, Yoon Geun Cho
  • Patent number: 10532808
    Abstract: Systems and methods for cueing a helicopter pilot when a flight parameter (such as rotor-induced vibration level, airspeed, bank angle, icing accumulation, etc.) exceeds operational constraints. This is accomplished by reformulating the on-board cockpit active vibration control system to add a pilot cueing aid. When the measured flight parameter becomes excessive, the active vibration control system is temporarily detuned, which reduces the amount of vibration suppression it provides or turns off vibration suppression, causing an increase in airframe vibration levels to cue the pilot to take action (e.g., to fly within operating limits).
    Type: Grant
    Filed: December 22, 2018
    Date of Patent: January 14, 2020
    Assignee: The Boeing Company
    Inventors: Robert C. Derham, Gregory R. Turk
  • Patent number: 10523248
    Abstract: A reception device according to an embodiment includes a main terminal, a sub-terminal, a demultiplexer, and a noise reducing unit. To the main terminal, a main signal is input. The main signal includes a broadcast wave. To the sub-terminal, a multiple signal is input. The multiple signal is obtained by multiplex a noise signal and a sub-signal including the broadcast wave. The demultiplexer demultiplexes the noise signal and the sub-signal from the multiple signal input from the sub-terminal. The noise reducing unit reduces a noise component included in the main signal by using the noise signal demultiplexed by the demultiplexer.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: December 31, 2019
    Assignees: FUJITSU TEN Limited, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeshi Chinda, Kazushige Ogino, Naoki Kushima, Takuma Sawaya
  • Patent number: 10515622
    Abstract: A combined reference signal generation unit included in an active noise reducing device has a plurality of filters that is applied on a one-on-one basis to the plurality of input reference signals and an adder that adds up the plurality of reference signals to which the plurality of filters is applied on a one-on-one basis to generate a combined reference signal.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: December 24, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Mitsuhiro Tani
  • Patent number: 10475466
    Abstract: This disclosure generally relates to a system, apparatus, and method for achieving an adaptive vehicle state-based hands free noise reduction feature. A noise reduction tool is provided for adaptively applying a noise reduction strategy on a sound input that uses feedback speech quality measures and machine learning to develop future noise reduction strategies, where the noise reduction strategies include analyzing vehicle operational state information and external information that are predicted to contribute to cabin noise and selecting noise reducing pre-filter options based on the analysis.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: November 12, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Francois Charette, Anthony Dwayne Cooprider, Paul J Joseph Nicastri, Yuksel Gur, Scott Andrew Amman, Gintaras Vincent Puskorius
  • Patent number: 10425734
    Abstract: Disclosed is a noise control apparatus which reduces noise at a position away from a head of a passenger in a seat in a room under a noisy environment created by a noise source. The apparatus includes: a weight sensor, and control speakers installed in the seat; a noise detector which detects the noise from the noise source, and outputs a noise signal; a control circuit which obtains the noise signal, and outputs a control signal for reducing the noise to the speakers; and a memory which stores control coefficients each used to generate the control signal for reducing the noise at a position which becomes higher from the seat as the corresponding weight becomes heavier. The circuit reads a coefficient corresponding to a detected weight or a correlation value from the coefficients, and outputs the control signal generated using the noise signal and the read coefficient to the speakers.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: September 24, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventor: Hiroyuki Kano
  • Patent number: 10406905
    Abstract: In the case that an all-cylinder operational state is detected by an ENG vibration pattern determining function, an ACM-ECU executes an amplitude variable—phase fixed control. Further, in the case that a cylinder paused operational state is detected by the ENG vibration pattern determining function, the ACM-ECU executes an amplitude variable—phase variable control exhibiting a large vibration damping effect.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: September 10, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Takashi Yamaguchi, Tatsuhiro Yone
  • Patent number: 10403299
    Abstract: A digital speech enhancement system that performs a specific chain of digital signal processing operations upon multi-channel sound pick up, to result in a single, enhanced speech signal. The operations are designed to be computationally less complex yet as a whole yield an enhanced speech signal that produces accurate voice trigger detection and low word error rates by an automatic speech recognizer. The constituent operations or components of the system have been chosen so that the overall system is robust to changing acoustic conditions, and can deliver the enhanced speech signal with low enough latency so that the system can be used online (enabling real-time, voice trigger detection and streaming ASR.) Other embodiments are also described and claimed.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: September 3, 2019
    Assignee: Apple Inc.
    Inventors: Jason Wung, Joshua D. Atkins, Ramin Pishehvar, Mehrez Souden
  • Patent number: 10391935
    Abstract: Provided is a vehicle approach notification device that can easily output a warning sound in which a discomfort feeling brought to an occupant is reduced while ensuring a necessary sound pressure. A vehicle approach notification device includes: a sound source; first and second amplifiers; a first speaker system including a first speaker and a second speaker that outputs a sound having an opposite phase to a sound output from the first speaker; and a second speaker system including a third speaker that outputs a sound having a same phase as the sound output from the first speaker and a fourth speaker that outputs a sound having an opposite phase to the sound output from the third speaker, wherein the first speaker system and the second speaker system are disposed so that the first speaker and the third speaker are located closer to a longitudinal center plane of the vehicle than the second speaker and the fourth speaker.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: August 27, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Fumiyasu Konno, Shinnosuke Nagasawa, Ichiro Ohno, Koichi Sakamoto
  • Patent number: 10380988
    Abstract: A noise cancellation system for a vehicle includes an excitation device mountable to a vehicle body component. The excitation device is operable to produce a low frequency response of the vehicle body component.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: August 13, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Frank C. Valeri, Scott M. Reilly, Eric J. Defenderfer
  • Patent number: 10360893
    Abstract: An active vibration and noise control device robust against outside disturbances, and an active vibration and noise control circuit are provided. An adaptive control circuit of this active vibration and noise control device has a cross-correlation value calculation unit which calculates the cross-correlation value of error signals, and a canceling output limiting unit which determines whether or not the cross-correlation value is less than a cross-correlation threshold value, and limits increases in the cancelling output if it is determined that the cross-correlation value is less than the cross-correlation threshold value.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: July 23, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Osamu Terashima, Toshio Inoue
  • Patent number: 10272840
    Abstract: The present invention discloses a two-way communication device for vehicles to communicate with an external environment of the vehicle. The communication device comprises a first communication device and a second communication device. The first communication device is adapted to be mounted on an interior of the vehicle. The first communication device comprises at least one interior speaker, microphone and a display. The second communication device adapted to be mounted on an exterior surface of the vehicle. The second communication device comprises at least one interior audio speaker, a microphone and a camera lens. The first communication device and second communication device are communicated via a signal processing circuit. The signal processing circuit is configured to broadcast audio, and videos of the external environment via first communication device within the vehicle.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: April 30, 2019
    Inventors: Karen Schmahl, Robert L Hart
  • Patent number: 10224018
    Abstract: A loudspeaker arrangement comprises a first loudspeaker configured to radiate an acoustical signal, and a first microphone that is acoustically coupled to the first loudspeaker via a secondary path and that is electrically coupled to the first loudspeaker via an active noise control processing unit. During the use of the loudspeaker arrangement, the first loudspeaker is arranged at a first distance from a first active noise control target position, wherein the first active noise control target position is a position at which noise is to be suppressed, and wherein the first distance is a length of the shortest path between the first loudspeaker and the first active noise control target position through free air. The first microphone is arranged at a second distance from the first loudspeaker that equals the first distance, and the position of the first microphone differs from the first active noise target position.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: March 5, 2019
    Assignee: Harman Becker Automotive Systems GmbH
    Inventors: Genaro Woelfl, Matthias Kronlachner
  • Patent number: 10182944
    Abstract: In one aspect, the invention is a sleep device. The sleep-aide device includes a soft housing adapted to be disposed over a user's head, a microphone positioned on the housing to receive an ambient sound signal, a suppression circuit that receives the ambient sound signal and produces a suppression sound signal, and a set of transducers, arranged in the soft housing, which receive the suppression sound signal. The suppression sound signal has a magnitude and phase to substantially cancel the ambient sound signal at the user's ear. In another aspect, the sleep-aide device includes a microphone to receive an ambient sound signal, a suppression circuitry, which receives the ambient sound signal and transmits a suppression sound signal based on the ambient sound signal, and a transducer which receives the suppression sound signal, which has a magnitude and phase to substantially cancel the ambient sound signal at the user's ear.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: January 22, 2019
    Assignee: Kurzweil Technologies, Inc.
    Inventors: Raymond C. Kurzweil, Sonya Kurzweil
  • Patent number: 10174652
    Abstract: An emission signature modification device for modifying an acoustic signature of an exhaust gas stream, including an exhaust gas guiding device that guides the exhaust gas stream in the flow direction thereof from an inlet area to an outlet area. An active acoustic emission modification device modifies the acoustic emission of the exhaust gas stream in predetermined operating states. If an actuator system of the active acoustic emission modification device is designed such that in a circumferential direction, the actuator system is surrounded by more than 30% of the guided exhaust gas stream, the actuating system can be protected against harmful influences from the environment by way of the exhaust gas guiding device on the one hand, and on the other hand, the required space signifier can be reduced as compared to a lateral, external arrangement of the actuating system.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: January 8, 2019
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Arndt Von Drathen, Hubert Ohmayer, Hennig Böhle
  • Patent number: 10170096
    Abstract: A Fourier Transform (FT) module configured to determine amplitudes of acceleration at predetermined orders, respectively, by performing a FT on a plurality of values of acceleration associated with a wheel. An order module is configured to identify one of the predetermined orders where one of the amplitudes is greater than a predetermined value and to, based on the one of the amplitudes and a rotational speed of the wheel, determine an order of a frequency corresponding to the rotational speed of the wheel. A sound control module is configured to set characteristics for outputting sound at the order of the frequency corresponding to the rotational speed of the wheel. An audio driver module is configured to, based on the characteristics, apply power to a speaker within a passenger cabin of the vehicle at the order of the frequency corresponding to the rotational speed of the wheel.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: January 1, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Frank C. Valeri, Christopher A. Stirlen, Scott M. Reilly
  • Patent number: 10156637
    Abstract: A noise control apparatus for vehicles includes a noise extractor for removing an output sound from an indoor sound to extract a noise, a transmitter for transmitting the noise and vehicle information, a receiver for receiving a cancellation sound corresponding to the noise and the vehicle information and a mixer for simultaneously outputting the cancellation sound and the output sound.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: December 18, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Hyun Joo Kim
  • Patent number: 10049686
    Abstract: Audio systems and methods for providing intelligible audio content within a vehicle cabin. In one example, the audio system includes a first speaker to provide first audio content to a first seating position based on an audio signal received from an audio signal source, a second speaker to provide second audio content to a second seating position, a first microphone assembly positioned to detect speech content originating at the second seating position, leaked second audio content from the second speaker, and road noise, and audio signal processing circuitry configured to determine a perturbing signal based at least in part on a combination of the first speech content, the leaked second audio content, and the road noise, and adjust the audio signal to the first speaker to compensate for an effect of the perturbing signal on the first audio content at the first seating position.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: August 14, 2018
    Assignee: BOSE CORPORATION
    Inventors: Cristian M. Hera, Jeffery R. Vautin, Elie Bou Daher, Paraskevas Argyropoulos, Vigneish Kathavarayan
  • Patent number: 10009689
    Abstract: A vehicle information presentation device that includes: an acquisition section configured to acquire information about the surroundings of an ego vehicle; a sound pick-up section configured to pick up sound heard by an occupant; a plurality of sound sources configured to emit sound toward the occupant; and a presentation section that, in a case in which another vehicle has been detected from the surroundings information acquired by the acquisition section, presents the occupant with information related to the other vehicle using sound emitted from at least one of the plurality of sound sources by attenuating, from among sound heard by the occupant, sound directed from the other vehicle toward the ego vehicle, based on audio pick-up information on sound picked up by the sound pick-up section.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: June 26, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshinori Yamada, Masaya Watanabe, Chikashi Takeichi, Satoshi Arikura
  • Patent number: 9997170
    Abstract: Provided are an electronic device and a reverberation removal method therefor. The reverberation removal method for an electronic device comprises: a plurality of microphone units for receiving a user's voice; a reverberation removal unit removing a reverberation component of the user's voice received from the plurality of microphone units so as to acquire an original component of the user's voice; a reverberation information acquisition unit for acquiring information on the intensity of the reverberation component of the user's voice; and a post-processing unit for additionally removing a reverberation component from the original component acquired from the reverberation removal unit on the basis of the information on the intensity of the reverberation component.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: June 12, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., Bar-Llan Research & Development Company Ltd.
    Inventors: Sharon Gannot, Emanuel A. P. Habets, Ofer Shvarts, Nam-gook Cho
  • Patent number: 9975459
    Abstract: To make it possible to provide an acoustic device in a headrest device such that a standard of a shock is satisfied and the performance of the acoustic device can be efficiently exhibited. In the headrest device, a shock resistant surface is formed in a core material of a headrest main body, an opening is formed in the shock resistant surface, and a non-contact type acoustic microphone is disposed on the inner side of the opening.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: May 22, 2018
    Assignees: CLARION CO., LTD., TACHI-S CO., LTD.
    Inventors: Naoki Takada, Fumiaki Nakashima, Takao Ishikawa, Takahiko Nagasawa, Yasuyuki Ito, Junpei Yoshikawa
  • Patent number: 9978399
    Abstract: A system includes a head and torso simulation (HATS) system configured to play back pre-recorded audio commands while simulating a driver head location as an output location. The system also includes a vehicle speaker system and a processor configured to engage a vehicle heating, ventilation and air-conditioning (HVAC) system. The processor is also configured to play back audio commands through the HATS system while playing back pre-recorded vehicle environment noises through the speaker system. The processor is further configured to determine if the audio command, recorded by a vehicle microphone, is recognizable in the presence of the environment noises and HVAC noises. Also, the processor is configured to repeat the engagement, playback of commands and noises, and determination, recording the results of the determination for each command in a set of commands.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: May 22, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Scott Andrew Amman, Brigitte Frances Mora Richardson, Allan Miramonti, John Edward Huber, Francois Charette, Gintaras Vincent Puskorius
  • Patent number: 9928027
    Abstract: Methods and systems are provided for dynamic sound enhancement for a mobile platform. The system comprises a memory for storing a plurality of unique sound profiles, and a processor communicatively coupled to the memory. The processor receives an identification (ID) for the mobile platform, a driving mode, and references the memory using the ID and driving mode to select a sound profile. The processor also receives sail status data and engine status data for the engine, which indicates whether the engine is in sail mode or not, and the progression of the mobile platform within sail mode. Responsive to the sail status and engine status data, and in accordance with the selected sound profile, the processor generates commands for an audio system coupled to the mobile platform.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: March 27, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Frank C. Valeri, Scott M. Reilly, Roger C. Barlow, Jr.
  • Patent number: 9851938
    Abstract: Disclosed herein are microphone arrays for directional reception, along with related system, devices, and techniques. For example, a four-microphone array for directional signal reception may include first, second, and third microphones arranged such that projections of the first, second, and third microphones in a plane provide corners of a triangle in the plane. In some embodiments, a fourth microphone may be arranged such that a projection of the fourth microphone in the plane is disposed in an interior of the triangle. In other embodiments, the fourth microphone may be arranged such that the projection of the fourth microphone in the plane is disposed outside the interior of the triangle, and a distance between the first microphone and the second microphone is different from a distance between the first microphone and the third microphone.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: December 26, 2017
    Assignee: ANALOG DEVICES, INC.
    Inventor: Martin Kessler
  • Patent number: 9845223
    Abstract: The invention relates to a transporting apparatus for transporting people, characterized by at least one structure-borne-sound-transmission region, which is acted on directly or indirectly by a structure-borne-sound transducer which is intended to generate vibrations which, when the structure-borne-sound-transmission region is touched by a person, are transmitted as structure-borne sound via the person's body and are audible to the person.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: December 19, 2017
    Assignee: ThyssenKrupp Elevator AG
    Inventors: Reinhardt Krämer, Julius Schlattmann
  • Patent number: 9817631
    Abstract: A computing device for a vehicle interior sound control system is described. The device includes one or more processors for controlling operation of the computing device, and a memory for storing data and program instructions usable by the one or more processors. The one or more processors are configured to execute instructions stored in the memory to operate, responsive to a location of the vehicle, at least one portion of the vehicle so as to control a sound level in an interior of the vehicle produced by the at least one portion of the vehicle.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: November 14, 2017
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Jeffrey E. Pierfelice
  • Patent number: 9773495
    Abstract: Embodiments include a vehicle comprising an audio system configured to create a plurality of audio zones within a vehicle cabin, and at least one display communicatively coupled to the audio system. The display is configured to display a separate user interface for each audio zone. Each user interface comprises an engine sound control and a cabin noise control for adjusting an audio output provided to the corresponding audio zone. Embodiments also include a method of providing user-controlled sound isolation in a plurality of audio zones within a vehicle. The method comprises presenting, for each audio zone, a user interface including an engine sound control and a cabin noise control, and generating an audio output for each audio zone based on a first value received from the engine sound control and a second value received from the cabin noise control of the corresponding user interface.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: September 26, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Perry Robinson MacNeille, James Andrew Miloser, Jorge Acosta, Eric Marsman
  • Patent number: 9706295
    Abstract: An anti-noise system for influencing exhaust noises propagating through a multi-flow exhaust system includes a controller 80 and at least one actuator. The at least one actuator is disposed in a sound generator 20; 21; 23; 25; 27, connected to the controller 80 for receiving control signals, and adapted to generate sound inside the sound generator 20; 21; 23; 25; 27. The sound generator 20; 21; 23; 25; 27 is connectable to at least two exhaust tracts 60, 61 of the multi-flow exhaust system of the vehicle simultaneously. The controller 80 is configured to generate a control signal that prompts the at least one actuator disposed in the sound generator 20; 21; 23; 25; 27 to cancel sound inside the at least two exhaust tracts 60, 61 of the vehicle's multi-flow exhaust system at least in part and preferably completely.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: July 11, 2017
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Michael Pommerer, Juergen Kobe, Ralf Hoelsch, Peter Wink
  • Patent number: 9679552
    Abstract: A system and method for reducing harmonic noise caused by two or more noise sources by causing one or more loudspeakers to produce sounds that are at about the same frequencies as the noise and of substantially opposite phase. There is a noise canceller associated with each noise source. Each noise canceller includes a harmonic sine wave generator that generates an output sine wave. Each noise canceller also has an adaptive filter that uses a sine wave to create a noise reduction signal that is used to drive one or more transducers with their outputs directed to reduce noise caused by the noise sources. There is an overlap detector that compares the harmonic frequencies and, based on their proximity, alters the operation of one or more adaptive filters.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: June 13, 2017
    Assignee: Bose Corporation
    Inventors: Alaganandan Ganeshkumar, Dennis D. Klug
  • Patent number: 9672803
    Abstract: A number of variations may include a method including obtaining data indicating a driver intent from a vehicle and using an ANC system to cancel noise in an appropriately reactive manner.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: June 6, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Brad A. Saxman, Scott M. Reilly, Frank C. Valeri
  • Patent number: 9666175
    Abstract: Techniques for noise cancelation include an automated method having the steps of: receiving signals from a plurality of microphones positioned within a microphone array outside a target area; identifying, from the received signals, a noise and position information for a source for the noise external to the target area before the noise reaches the target area; before the noise reaches the target area, determining a cancelation sound for the noise based on the noise and the position information; and playing the cancelation sound as the noise reaches the target area so as to significantly cancel the noise within the target area.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: May 30, 2017
    Assignee: zPillow, Inc.
    Inventor: Chidananda Khatua
  • Patent number: 9656552
    Abstract: Systems, apparatus and methods for cancelling a noise voltage at a vehicle are presented. An noise cancellation system (NCS) can be configured to null an earth-to-body voltage at the vehicle to prevent its interference with a receiver system. An (NCS) can include a noise sensor (NSSR) configured to sense a noise voltage, and a noise-nulling device (NNDV) configured to provide an anti-noise output. An anti-noise injector (ANI) can be configured to drive the anti-noise output at an anti-noise injection site In an example embodiment, an anti-noise output can be provided directly to the receiver system by cable. Alternatively, an anti-noise signal can be inductively or capacitively coupled to a vehicle structure or component that is not part of the receiver system. A noise cancellation system can be arranged in a feedback or feed-forward arrangement. Radio frequency noise and non-radio frequency noise can be cancelled.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: May 23, 2017
    Assignee: Ford Global Technologies, LLC
    Inventor: Richard William Kautz