Patents Examined by Ping Lee
  • Patent number: 11310619
    Abstract: The present technology relates to a signal processing device and method, and a program for improving reproducibility of a sound image with a small amount of calculation. A signal processing device includes a rendering method selection unit configured to select one or more methods of rendering processing of localizing a sound image of an audio signal in a listening space from among a plurality of methods, and a rendering processing unit configured to perform the rendering processing for the audio signal by the method selected by the rendering method selection unit. The present technology can be applied to a signal processing device.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: April 19, 2022
    Assignee: Sony Corporation
    Inventors: Hiroyuki Honma, Toru Chinen
  • Patent number: 11310620
    Abstract: An auxiliary sensing method and system based on sensory substitution includes: establishing a discrete horizontal plane included angle and a normal vector included angle in three-dimensional space as well as response functions corresponding to different discrete distances, and establishing an acoustic coding library of an object; obtaining a surrounding environmental video; obtaining object information and category of current environment; establishing a three-dimensional sound field of the object according to the image information, the object information and the three-dimensional coordinate information obtained in combination with the acoustic coding library of the object; and adjusting, for objects of different categories, the three-dimensional sound field of each object according to movement information and variations of images, and playing the three-dimensional sound field of each object in real time.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: April 19, 2022
    Assignee: SHENZHEN UNNERSITY
    Inventors: Kaishun Wu, Yongzhi Huang, Lu Wang, Kaixin Chen
  • Patent number: 11302298
    Abstract: A signal processing method for an earphone includes: a motion state of a wearer of the earphone is detected by using an acceleration sensor arranged inside the earphone; a first microphone and a second microphone both arranged outside the earphone detect wind noise conditions corresponding to different frequency bands; and according to the motion state of the wearer of the earphone and the wind noise conditions corresponding to different frequency bands, operating modes of a feedforward filter and a feedback filter inside the earphone are adjusted, herein the feedforward filter and the feedback filter are configured for active noise cancellation of the earphone.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: April 12, 2022
    Assignee: Beijing Xiaoniao Tingting Technology Co., LTD.
    Inventors: Song Liu, Na Li, Bo Li
  • Patent number: 11295719
    Abstract: The present disclosure discloses a sound receiving that includes an air conduction sound receiving circuit, a bone conduction sound receiving circuit, an adaptive filter, a crossover frequency control circuit and a synthesis circuit. The air conduction sound receiving circuit generates an air conduction sound signal. The bone conduction sound receiving circuit generates a bone conduction sound signal. The adaptive filter performs calculation according to a minimum of an error function in real time to generate a transferring filter function to filter the bone conduction sound signal to generate a transferred bone conduction sound signal. The crossover frequency control circuit determines a crossover frequency according to a maximum energy frequency point of the transferring filter function on a frequency domain.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: April 5, 2022
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventor: Wei-Hung He
  • Patent number: 11297422
    Abstract: Methods, apparatus, systems and articles of manufacture are disclosed for wear noise audio signature suppression. An example method disclosed herein includes generating an audio signature based on a media audio signal during a first time period, collecting acceleration data during the first time period, determining whether the acceleration data corresponds to wear noise having occurred during the first time period, and in response to determining the acceleration data corresponds to wear noise during the first time period, inhibiting transmission of the audio signature to a central facility.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: April 5, 2022
    Assignee: The Nielsen Company (US), LLC
    Inventor: Christen V. Nielsen
  • Patent number: 11284195
    Abstract: In a device or method for rendering a sound program for headphones, a location is received for placing the sound program with respect to first and second ear pieces. If the location is between the first ear piece and the second ear piece, the sound program is filtered to produce low-frequency and high-frequency portions. The high-frequency portion is panned according to the location to produce first and second high-frequency signals. The low-frequency portion and the first high-frequency signal are combined to produce a first headphone driver signal to drive the first ear piece. A second headphone driver signal is similarly produced. The sound program may be a stereo sound program. The device or method may also provide for a location that is between the first ear piece and a near-field boundary. Other aspects are also described.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: March 22, 2022
    Assignee: APPLE INC.
    Inventors: Martin E. Johnson, Afrooz Family, Darius A. Satongar, Jonathan D. Sheaffer, Lance F. Reichert, Peter V. Jupin
  • Patent number: 11284184
    Abstract: A method of calibrating a feedback-based noise cancellation system of an ear device may involve obtaining a measured plant response of the ear device, obtaining a reference plant response value and determining a plant response variation between the reference plant response value and a value corresponding to the measured plant response. The method may involve obtaining a measured a coupler response of the ear device, obtaining a reference coupler response value and determining a coupler response variation between the reference coupler response value and a value corresponding to the measured coupler response. The method may involve determining, based at least in part on the plant response variation and the coupler response variation, a microphone signal gain correction factor and applying the microphone signal gain correction factor to ear device microphone signals that are input to a feedback loop of the feedback-based noise cancellation system.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: March 22, 2022
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Matthew Conrad Fellers, Louis D. Fielder, Douglas Walter Hansen, Joshua B. Lando, C. Phillip Brown, Rhonda J. Wilson
  • Patent number: 11277704
    Abstract: An acoustic processing device including a memory storing instructions and a processor that implements the stored instructions to execute a plurality of tasks, the tasks including: an analyzing task that analyzes an input signal; a determining task that determines an acoustic effect to be applied to the input signal, from among a first acoustic effect of virtual surround and a second acoustic effect of virtual surround different from the first acoustic effect, based on a result of the analyzing task; and an acoustic effect applying task that applies the acoustic effect determined by the determining task to the input signal.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: March 15, 2022
    Assignee: YAMAHA CORPORATION
    Inventor: Yuta Yuyama
  • Patent number: 11270709
    Abstract: There is provided encoding and decoding methods for encoding and decoding of object based audio. An exemplary encoding method includes inter alia calculating M downmix signals by forming combinations of N audio objects, wherein M?N, and calculating parameters which allow reconstruction of a set of audio objects formed on basis of the N audio objects from the M downmix signals. The calculation of the M downmix signals is made according to a criterion which is independent of any loudspeaker configuration.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: March 8, 2022
    Assignee: Dolby International AB
    Inventors: Heiko Purnhagen, Kristofer Kjoerling, Toni Hirvonen, Lars Villemoes, Dirk Jeroen Breebaart
  • Patent number: 11251763
    Abstract: An audio signal adjustment method, a storage medium, and a terminal are provided. The method may include: when it is detected that a pre-set event is triggered, controlling a microphone to acquire an audio signal, the pre-set event comprising a pre-set call event and/or a pre-set voice recording event; analyzing the sound loudness corresponding to the audio signal; dynamically adjusting, according to the analysis result and a pre-set adjustment policy, the sound loudness corresponding to the audio signal; and performing, according to the type of the pre-set event, corresponding output processing on the adjusted audio signal.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: February 15, 2022
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Zhaoan Xu, Fenggui Yan, Gaoting Gan, Zhiyong Zheng, Hai Yang
  • Patent number: 11245981
    Abstract: A microphone array includes first and second microphones (Ma, Mb) placed on a first axis (f), a third microphone (Mc) placed on a plane (fg) formed by the first axis and a second axis (g) and at a position other than on the first axis, and a fourth microphone (Md) placed on a third axis (h), and at a position other than on the plane formed by the first and the second axes, and a processing circuit generates signals (Cx, Cy, Cz) having bidirectionality in first, second and third mutually perpendicular directions (x, y, z), and an omnidirectional signal (Cw), based on signals (Ba to Bd) obtained by sound collection by means of the first to fourth microphones. It is possible to generate signals having bidirectionality in mutually perpendicular directions, and an omnidirectional signal, without using special microphones, and without excessive restrictions with regard to the placement of the microphones.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: February 8, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tomoharu Awano, Masaru Kimura, Satoru Furuta, Jin Hirano, Atsuyoshi Yano, Nobuaki Tanaka
  • Patent number: 11184709
    Abstract: A method and apparatus for reconstructing N audio channels from M audio channels is disclosed. The method includes receiving a bitstream containing an encoded audio signal representing the M audio channels and decoding the encoded audio signal to obtain a frequency domain representation of the M audio channels. The method further includes extracting a parameter from the bitstream and reconstructing at least one of the N audio channels using the parameter. The parameter represents an angle between two signals, at least one of which is included in the M audio channels.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: November 23, 2021
    Assignee: Dolby International AB
    Inventors: Heiko Purnhagen, Lars Villemoes, Jonas Engdegard, Jonas Roeden, Kristofer Kjoerling
  • Patent number: 11184728
    Abstract: An audio decoder device for decoding a compressed input audio signal having at least one core decoder having one or more processors for generating a processor output signal based on a processor input signal, wherein a number of output channels of the processor output signal is higher than a number of input channels of the processor input signal, wherein each of the one or more processors has a decorrelator and a mixer, wherein a core decoder output signal having a plurality of channels has the processor output signal, and wherein the core decoder output signal is suitable for a reference loudspeaker setup; at least one format converter device configured to convert the core decoder output signal into an output audio signal, which is suitable for a target loudspeaker setup; and a control device configured to control at least one or more processors in such way that the decorrelator of the processor may be controlled independently from the mixer of the processor, wherein the control device is configured to contro
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: November 23, 2021
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Christian Ertel, Johannes Hilpert, Andreas Hoelzer, Achim Kuntz, Jan Plogsties, Michael Kratschmer
  • Patent number: 11184711
    Abstract: Systems, apparatuses, and methods are described for a privacy blocking device configured to prevent receipt, by a listening device, of video and/or audio data until a trigger occurs. A blocker may be configured to prevent receipt of video and/or audio data by one or more microphones and/or one or more cameras of a listening device. The blocker may use the one or more microphones, the one or more cameras, and/or one or more second microphones and/or one or more second cameras to monitor for a trigger. The blocker may process the data. Upon detecting the trigger, the blocker may transmit data to the listening device. For example, the blocker may transmit all or a part of a spoken phrase to the listening device.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: November 23, 2021
    Inventor: Thomas Stachura
  • Patent number: 11184716
    Abstract: An exemplary behind-the-ear (“BTE”) hearing device has a side specific structure and includes a housing comprising: a proximal portion configured to be positioned towards an upper part of an ear of a recipient, the proximal portion having a curved shape configured to curve within a first reference plane such that the proximal portion is configured to follow a median shape of the ear when the BTE hearing device is worn by the recipient; and a distal portion configured to extend behind the ear when the BTE hearing device is worn by the recipient, the distal portion configured to extend within a second reference plane that intersects the first reference plane at an angle such that the distal portion is bent with respect to the proximal portion and is configured to extend toward a skull of the recipient when the BTE hearing device is worn by the recipient.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: November 23, 2021
    Assignee: Sonova AG
    Inventors: Marius Rufenacht, Richard Niccolai, Petra Gunde
  • Patent number: 11163519
    Abstract: A multi-purpose Bluetooth interface and controller includes a microcontrol unit and at least one first microphone, the first microphone being electrically connected to the MCU and configured to collect sound signals and convert the sound signals into electrical signals that are received by the MCU; wherein the Bluetooth interface and controller further includes at least one connection port which is electrically connected to the MCU and is configured to connect an external device that includes a wired microphone, the wired microphone also being configured to collect sound signals that are received by the MCU; and the MCU encodes electrical sound signals received from the first microphone and the external wired microphone, and transmits the encoded sound signals in uplink to a mobile terminal via a Bluetooth wireless connection established between the MCU and the mobile terminal for subsequent processing by the mobile terminal.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: November 2, 2021
    Inventor: Deming Zhang
  • Patent number: 11159882
    Abstract: Various embodiments of the present invention comprise: a circuit board comprising a first grounding portion and a second grounding portion; a wireless communication circuit arranged in a first area of the circuit board, the wireless communication circuit comprising a first grounding terminal electrically connected to the first grounding portion; an audio codec circuit arranged in a second area of the circuit board, the audio codec circuit comprising a signal input terminal and a second grounding terminal electrically connected to the second grounding portion; and a connector electrically connected to the input terminal, the connector comprising a first pin that can be electrically connected to a signal terminal of a microphone included in an external electronic device and a second pin that can be electrically connected to a grounding terminal of the microphone, the second pin being electrically connectable to the second grounding portion.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: October 26, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hak-Hoon Song, Nam-Ki Kim, Byoung-Jun Kim
  • Patent number: 11158301
    Abstract: A method for eliminating a specific object voice and an ear-wearing audio device using the same are provided. The ear-wearing audio device includes a plurality of voice receiving units, a voice direction tracking unit, a direction enhancement unit, a window cutting unit, a voiceprint recognition unit, a voice cancellation unit and two speakers. The voice receiving units are arranged in an array to obtain a sound signal. The voice direction tracking unit is configured to track a plurality of sound sources to obtain a plurality of sound source directions. The voiceprint recognition unit determines whether the sound signal contains a specific object voice in each of the sound source directions. If the sound signal contains the specific object voice in one of the sound source directions, the voice cancellation adjusts a field pattern using a beamforming technique to eliminate the specific object voice.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: October 26, 2021
    Assignee: ACER INCORPORATED
    Inventors: Po-Jen Tu, Jia-Ren Chang, Kai-Meng Tzeng, Kuei-Ting Tai, Chih-Ta Lin
  • Patent number: 11140483
    Abstract: A mobile computing device includes a digital signal processor, a first speaker having a first sensitivity and a second speaker having a second sensitivity, where the second sensitivity is greater than the first sensitivity.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: October 5, 2021
    Assignee: MAXIM INTEGRATED PRODUCTS, INC.
    Inventors: Robert Polleros, Vivek P. Nigam
  • Patent number: 11128969
    Abstract: An electronic device includes a first microphone, a second microphone, a digital signal processor, and a detector. The first microphone samples a sound from a sound source at a first location to generate a first signal. The second microphone samples the sound from the sound source at a second location spaced from the first location to generate a second signal. The digital signal processor compares the first signal and the second signal to obtain external environment information associated with a location of the sound source. The detector determines a call mode, based on the external environment information.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: September 21, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-Gyun Ko