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).

  • 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
  • Patent number: 9406302
    Abstract: The invention relates to a method for processing a multi-channel audio signal which carries a plurality of audio channel signals. The method comprises determining a time-scaling position using the plurality of audio channel signals and time-scaling each audio channel signal of the plurality of audio channel signals according to the time-scaling position to obtain a plurality of time scaled audio channel signals.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: August 2, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Anisse Taleb, David Virette, Liyun Pang, Yue Lang
  • Publication number: 20140172420
    Abstract: A voice or audio signal processor for processing received network packets received over a communication network to provide an output signal, the voice or audio signal processor comprising a jitter buffer being configured to buffer the received network packets, a voice or audio decoder being configured to decode the received network packets as buffered by the jitter buffer to obtain a decoded voice or audio signal, a controllable time scaler being configured to amend a length of the decoded voice or audio signal to obtain a time scaled voice or audio signal as the output voice or audio signal, and an adaptation control means being configured to control an operation of the time scaler in dependency on a processing complexity measure.
    Type: Application
    Filed: February 24, 2014
    Publication date: June 19, 2014
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Anisse Taleb, Jianfeng Xu, Liyun Pang, Lei Miao
  • Publication number: 20140140516
    Abstract: The invention relates to a method for processing a multi-channel audio signal which carries a plurality of audio channel signals. The method comprises determining a time-scaling position using the plurality of audio channel signals and time-scaling each audio channel signal of the plurality of audio channel signals according to the time-scaling position to obtain a plurality of time scaled audio channel signals.
    Type: Application
    Filed: December 31, 2013
    Publication date: May 22, 2014
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Anisse Taleb, David Virette, Liyun Pang, Yue Lang