Patents by Inventor Liyun Pang

Liyun Pang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240135913
    Abstract: ANR headphones generate a sound signal, and include a loudspeaker, an external microphone configured to detect an ambient noise signal, and an internal microphone configured to detect a residual noise signal within an ear canal of the user. Moreover, the ANR headphones have an acceleration sensor configured to generate an acceleration signal indicative of accelerations experienced by the ANR headphones. A controller of the ANR headphones is configured to generate a loudspeaker signal based on a composite compensation signal. The composite compensation signal is a combination of an ambient noise compensation signal based on the ambient noise signal, a residual noise compensation signal based on the residual noise signal and an acceleration compensation signal based on the acceleration signal.
    Type: Application
    Filed: December 29, 2023
    Publication date: April 25, 2024
    Inventors: Liyun Pang, Fons Adriaensen, Song Li, Roman Schlieper
  • Patent number: 11887577
    Abstract: The present disclosure provides a method for evaluating an electronic device. The method comprises determining, with an acoustic tube, a value of a first parameter, the value of the first parameter being indicative of the acoustic impedance of a reference termination. The method further comprises determining, with the acoustic tube, a value of a second parameter, the value of the second parameter being indicative of the acoustic impedance of the reference termination, when occluded by the electronic device. The method then comprises calculating a value of a third parameter, the value of the third parameter being indicative of the acoustic impedance of the electronic device, based on the value of the first parameter and the value of the second parameter.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: January 30, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Liyun Pang, Fons Adriaensen, Roman Schlieper, Song Li
  • Publication number: 20240007819
    Abstract: An apparatus provides personalized binaural audio rendering of an input signal. The apparatus has a left ear transducer configured to generate a left ear audio signal and a right ear transducer configured to generate a right ear audio signal. Moreover, the apparatus has processing circuitry configured to determine, based on a current target direction of the input signal, an adjusted current target direction using a personalized adjustment function that describes a functional relationship between a plurality of reference target directions of a reference sound signal and a plurality of perceived reference target directions of the reference sound signal as perceived by a user. The processing circuitry is further configured to implement a target direction renderer configured to generate based on the input signal and the adjusted target direction a first driving signal for driving the left ear transducer and a second driving signal for driving the right ear transducer.
    Type: Application
    Filed: July 18, 2023
    Publication date: January 4, 2024
    Inventors: Liyun Pang, Martin Pollow, Lauren Ward, Gavin Kearney, Thomas McKenzie, Calum Armstrong
  • Publication number: 20230362542
    Abstract: An audio controller for an active noise reduction, ANR, reduces an ambient noise signal. The audio controller includes processing circuitry configured to provide a fixed ANR filter configured to generate a first noise reduction signal. Moreover, the processing circuitry is further configured to provide an adaptive ANR filter. The adaptive ANR filter includes one or more adjustable filter coefficients for adapting the adaptive ANR filter and the adaptive ANR filter is configured to generate a second noise reduction signal. The processing circuitry is further configured to generate a total noise reduction signal as an adjustable weighted linear combination of the first noise reduction signal and the second noise reduction signal.
    Type: Application
    Filed: May 2, 2023
    Publication date: November 9, 2023
    Inventors: Liyun Pang, Fons Adriaensen, Song Li, Roman Schlieper
  • Patent number: 11750995
    Abstract: The disclosure relates to a method for processing a stereo signal. The method can include obtaining a center channel signal by up-mixing the stereo signal. The method can also include generating a filtered center channel signal by applying one or more peak filters and one or more notch filters to the center channel signal. Furthermore, the method can include generating a binaural signal based on the filtered center channel signal.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: September 5, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Liyun Pang, Fons Adriaensen, Song Li, Roman Schlieper
  • Patent number: 11668600
    Abstract: The invention relates to the technical fields of binaural audio rendering and, to this end, estimation of room acoustic parameters like reverberation time. In particular, the invention provides a device and method for estimating such acoustic parameters. The device is configured to record an acoustic signal, particularly a speech signal, to estimate a frequency-dependent reverberation time in a lower frequency range based on the recorded acoustic signal, and to extend the frequency-dependent reverberation time to a higher frequency range based on a predetermined model to obtain an extended frequency-dependent reverberation time. Virtual 3D audio can thus be adapted to a real room.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: June 6, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Liyun Pang, Fons Adriaensen, Song Li, Roman Schlieper
  • Patent number: 11405723
    Abstract: A method for processing an audio signal, the method including: processing the audio signal according to a pair of mouth to ear transfer functions to obtain a processed audio signal; filtering the processed audio signal, using a pair of equalization filters, to obtain a filtered audio signal, where a parameter of the equalization filter is depends on an acoustic impedance of a headphone; and outputting the filtered audio signal to the headphone. Accordingly, this method counteracts the occlusion effect and to provides a natural perceived sound pressure.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: August 2, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Liyun Pang, Fons Adriaensen, Roman Schlieper, Song Li
  • Publication number: 20210398515
    Abstract: The present disclosure provides a method for evaluating an electronic device. The method comprises determining, with an acoustic tube, a value of a first parameter, the value of the first parameter being indicative of the acoustic impedance of a reference termination. The method further comprises determining, with the acoustic tube, a value of a second parameter, the value of the second parameter being indicative of the acoustic impedance of the reference termination, when occluded by the electronic device. The method then comprises calculating a value of a third parameter, the value of the third parameter being indicative of the acoustic impedance of the electronic device, based on the value of the first parameter and the value of the second parameter.
    Type: Application
    Filed: September 1, 2021
    Publication date: December 23, 2021
    Inventors: Liyun PANG, Fons ADRIAENSEN, Roman SCHLIEPER, Song LI
  • Publication number: 20210352425
    Abstract: The disclosure relates to a method for processing a stereo signal. The method can include obtaining a center channel signal by up-mixing the stereo signal. The method can also include generating a filtered center channel signal by applying one or more peak filters and one or more notch filters to the center channel signal. Furthermore, the method can include generating a binaural signal based on the filtered center channel signal.
    Type: Application
    Filed: July 23, 2021
    Publication date: November 11, 2021
    Inventors: Liyun PANG, Fons ADRIAENSEN, Song LI, Roman SCHLIEPER
  • Publication number: 20210250686
    Abstract: A method for processing an audio signal, the method including: processing the audio signal according to a pair of mouth to ear transfer functions to obtain a processed audio signal; filtering the processed audio signal, using a pair of equalization filters, to obtain a filtered audio signal, where a parameter of the equalization filter is depends on an acoustic impedance of a headphone; and outputting the filtered audio signal to the headphone. Accordingly, this method counteracts the occlusion effect and to provides a natural perceived sound pressure.
    Type: Application
    Filed: April 30, 2021
    Publication date: August 12, 2021
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Liyun PANG, Fons ADRIAENSEN, Roman SCHLIEPER, Song LI
  • Publication number: 20210231488
    Abstract: The invention relates to the technical fields of binaural audio rendering and, to this end, estimation of room acoustic parameters like reverberation time. In particular, the invention provides a device and method for estimating such acoustic parameters. The device is configured to record an acoustic signal, particularly a speech signal, to estimate a frequency-dependent reverberation time in a lower frequency range based on the recorded acoustic signal, and to extend the frequency-dependent reverberation time to a higher frequency range based on a predetermined model to obtain an extended frequency-dependent reverberation time. Virtual 3D audio can thus be adapted to a real room.
    Type: Application
    Filed: March 18, 2021
    Publication date: July 29, 2021
    Inventors: Liyun PANG, Fons ADRIAENSEN, Song LI, Roman SCHLIEPER
  • Patent number: 10492017
    Abstract: An audio signal processing apparatus, comprising a memory configured to store a set of pairs of predefined left ear and right ear transfer functions, which are predefined for a plurality of reference positions relative to the listener, a processor configured to determine a pair of left ear and right ear transfer functions on the basis of the set of predefined pairs of predefined left ear and right ear transfer functions for the azimuth angle and the elevation angle of the virtual target position and an adjustment filter configured to filter the input audio signal on the basis of the determined pair of left ear and right ear transfer functions and an adjustment function configured to adjust a delay between the left ear transfer function and the right ear transfer function to obtain a left ear output audio signal and a right ear output audio signal.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: November 26, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Liyun Pang, Peter Grosche, Christof Faller, Alexis Favrot
  • Patent number: 10448191
    Abstract: An audio signal processing apparatus, comprising a memory configured to store a set of pairs of predefined left ear and right ear transfer functions, which are predefined for a plurality of reference positions relative to the listener, a processor configured to determine a pair of left ear and right ear transfer functions on the basis of the set of predefined pairs of predefined left ear and right ear transfer functions for the azimuth angle and the elevation angle of the virtual target position and an adjustment filter configured to filter the input audio signal on the basis of the determined pair of left ear and right ear transfer functions and an adjustment function configured to adjust a delay between the left ear transfer function and the right ear transfer function to obtain a left ear output audio signal and a right ear output audio signal.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: October 15, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Liyun Pang, Peter Grosche, Christof Faller, Alexis Favrot
  • Patent number: 10412226
    Abstract: The disclosure relates to an audio signal processing apparatus for processing a plurality of audio signals defining a plurality of audio signal spectra, the audio signals to be transmitted to a listener in such a way that the listener perceives the audio signals to originate from virtual positions of a plurality of audio signal sources. The audio signal processing apparatus comprises a selector configured to select a spatial arrangement of the virtual positions of the audio signal sources relative to the listener from a plurality of possible spatial arrangements, and a filter configured to filter the plurality of audio signals on the basis of the selected spatial arrangement.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: September 10, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Liyun Pang, Pablo Hoffmann
  • Patent number: 10178491
    Abstract: The disclosure relates to an apparatus for manipulating an input audio signal associated to a spatial audio source within a spatial audio scenario, wherein the spatial audio source has a certain distance to a listener within the spatial audio scenario. The apparatus comprises an exciter adapted to manipulate the input audio signal to obtain an output audio signal, and a controller adapted to control parameters of the exciter for manipulating the input audio signal based on the certain distance.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: January 8, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Christof Faller, Alexis Favrot, Liyun Pang, Peter Grosche, Yue Lang
  • Publication number: 20180324541
    Abstract: An audio signal processing apparatus, comprising a memory configured to store a set of pairs of predefined left ear and right ear transfer functions, which are predefined for a plurality of reference positions relative to the listener, a processor configured to determine a pair of left ear and right ear transfer functions on the basis of the set of predefined pairs of predefined left ear and right ear transfer functions for the azimuth angle and the elevation angle of the virtual target position and an adjustment filter configured to filter the input audio signal on the basis of the determined pair of left ear and right ear transfer functions and an adjustment function configured to adjust a delay between the left ear transfer function and the right ear transfer function to obtain a left ear output audio signal and a right ear output audio signal.
    Type: Application
    Filed: June 6, 2018
    Publication date: November 8, 2018
    Inventors: Liyun Pang, Peter Grosche, Christof Faller, Alexis Favrot
  • Publication number: 20170346951
    Abstract: The disclosure relates to an audio signal processing apparatus for processing a plurality of audio signals defining a plurality of audio signal spectra, the audio signals to be transmitted to a listener in such a way that the listener perceives the audio signals to originate from virtual positions of a plurality of audio signal sources. The audio signal processing apparatus comprises a selector configured to select a spatial arrangement of the virtual positions of the audio signal sources relative to the listener from a plurality of possible spatial arrangements, and a filter configured to filter the plurality of audio signals on the basis of the selected spatial arrangement.
    Type: Application
    Filed: August 17, 2017
    Publication date: November 30, 2017
    Inventors: Liyun PANG, Pablo HOFFMANN
  • Patent number: 9830926
    Abstract: A signal processing apparatus for dereverberating a number of input audio signals, where the signal processing apparatus includes a processor configured to transform the number of input audio signals into a transformed domain to obtain input transformed coefficients, the input transformed coefficients being arranged to form an input transformed coefficient matrix, determine filter coefficients upon the basis of eigenvalues of a signal space, the filter coefficients being arranged to form a filter coefficient matrix, convolve input transformed coefficients of the input transformed coefficient matrix by filter coefficients of the filter coefficient matrix to obtain output transformed coefficients, and the output transformed coefficients being arranged to form an output transformed coefficient matrix.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: November 28, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Karim Helwani, Liyun Pang
  • Publication number: 20170134877
    Abstract: The disclosure relates to an apparatus for manipulating an input audio signal associated to a spatial audio source within a spatial audio scenario, wherein the spatial audio source has a certain distance to a listener within the spatial audio scenario. The apparatus comprises an exciter adapted to manipulate the input audio signal to obtain an output audio signal, and a controller adapted to control parameters of the exciter for manipulating the input audio signal based on the certain distance.
    Type: Application
    Filed: January 20, 2017
    Publication date: May 11, 2017
    Inventors: Christof FALLER, Alexis FAVROT, Liyun PANG, Peter GROSCHE, Yue LANG
  • Publication number: 20160365100
    Abstract: A signal processing apparatus for dereverberating a number of input audio signals, where the signal processing apparatus includes a processor configured to transform the number of input audio signals into a transformed domain to obtain input transformed coefficients, the input transformed coefficients being arranged to form an input transformed coefficient matrix, determine filter coefficients upon the basis of eigenvalues of a signal space, the filter coefficients being arranged to form a filter coefficient matrix, convolve input transformed coefficients of the input transformed coefficient matrix by filter coefficients of the filter coefficient matrix to obtain output transformed coefficients, and the output transformed coefficients being arranged to form an output transformed coefficient matrix.
    Type: Application
    Filed: August 26, 2016
    Publication date: December 15, 2016
    Inventors: Karim Helwani, Liyun Pang