Patents by Inventor Yue Lang

Yue Lang 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: 10375503
    Abstract: A wave field synthesis apparatus for driving an array of loudspeakers with drive signals, the apparatus includes a sound field synthesizer for generating sound field drive signals for causing the array of loudspeakers to generate one or more sound fields at one or more audio zones, a binaural renderer for generating binaural drive signals for causing the array of loud-speakers to generate specified sound pressures at at least two positions, wherein the at least two positions are determined based on a detected position and/or orientation of a listener, and a decision unit for deciding whether to generate the drive signals using the sound field synthesizer or using the binaural renderer.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: August 6, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Michael Buerger, Heinrich Löllmann, Walter Kellermann, Peter Grosche, Yue Lang
  • Patent number: 10313785
    Abstract: A sound processing node for an arrangement of sound processing nodes is disclosed. The sound processing nodes being configured to receive a plurality of sound signals, wherein the sound processing node comprises a processor configured to determine a beamforming signal on the basis of the plurality of sound signals weighted by a plurality of weights, wherein the processor is configured to determine the plurality of weights using a transformed version of a linearly constrained minimum variance approach, the transformed version of the linearly constrained minimum variance approach being obtained by applying a convex relaxation to the linearly constrained minimum variance approach.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: June 4, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yue Lang, Wenyu Jin, Thomas Sherson, Richard Heusdens, Willem Bastiaan Kleijn
  • Patent number: 10284993
    Abstract: A local wave field synthesis apparatus, which includes a determination module for determining desired sound pressures and desired particle velocity vectors at a plurality of control points, a computation module for computing sound pressures and particle velocity vectors at the plurality of control points based on a set of filter parameters, an optimization module for computing an optimum set of filter parameters by jointly optimizing computed sound pressures towards the desired sound pressures and computed particle velocity vectors towards the desired particle velocity vectors, and a generator module for generating the drive signals based on the optimum set of filter parameters, wherein the plurality of control points are located on one or more contours around the one or more audio zones.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: May 7, 2019
    Assignees: Huawei Technologies Co., Ltd., FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
    Inventors: Michael Buerger, Heinrich Löllmann, Walter Kellermann, Karim Helwani, Peter Grosche, Yue Lang
  • 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
  • Patent number: 10154345
    Abstract: A microphone arrangement and a method using the microphone arrangement for recording surround sound in a mobile device, where the microphone arrangement comprises a first and a second microphone and arranged at a first distance to each other and configured to obtain a stereo signal, and comprises a third microphone configured to obtain a steering signal together with at least one of the first and second microphone or with a fourth microphone. The microphone arrangement also comprises a processor configured to separate the stereo signal into a front stereo signal and a back stereo signal based on the steering signal.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: December 11, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Christof Faller, Alexis Favrot, Peter Grosche, Yue Lang
  • Publication number: 20180270573
    Abstract: A sound processing node for an arrangement of sound processing nodes is disclosed. The sound processing nodes being configured to receive a plurality of sound signals, wherein the sound processing node comprises a processor configured to determine a beamforming signal on the basis of the plurality of sound signals weighted by a plurality of weights, wherein the processor is configured to determine the plurality of weights using a transformed version of a linearly constrained minimum variance approach, the transformed version of the linearly constrained minimum variance approach being obtained by applying a convex relaxation to the linearly constrained minimum variance approach.
    Type: Application
    Filed: March 29, 2018
    Publication date: September 20, 2018
    Inventors: Yue LANG, Wenyu JIN, Thomas SHERSON, Richard HEUSDENS, Willem Bastiaan KLEIJN
  • Publication number: 20180215288
    Abstract: A vehicle seat includes a seat base, a backrest and a track arrangement with a fixed track part and a moveable track part and with a lockable range to lock the seat and the moveable track part relative to the a fixed track part. A lockout mechanism locks the backrest in a forward position with the seat base in a non-lockable track range. The lockout mechanism includes a lockout catch member connected to the backrest and a lockout hook connected to the seat base, which is pivotable between a locked position, with the lockout hook engaging the lockout catch member, and an unlocked position. A blocker member is connected to the seat base and is pivotable between a blocking position, with the blocker engaging the lockout hook to maintain the lockout hook in the locked position and an open position, with the blocker not engaging the lockout hook.
    Type: Application
    Filed: June 2, 2016
    Publication date: August 2, 2018
    Applicant: Adient Luxembourg Holding S.à. r. l.
    Inventors: Bruce HIEMSTRA, Yue LANG
  • Publication number: 20180184199
    Abstract: The disclosure relates to an audio signal processing apparatus for processing an input audio signal, comprising a filter unit comprising a plurality of filters, each filter configured to filter the input audio signal to obtain a plurality of filtered audio signals, each filter designed according to an extended mode matching beamforming applied to a surface of a half revolution, the surface partially characterizing a loudspeaker enclosure shape, a plurality of scaling units, each scaling unit configured to scale the plurality of filtered audio signals using a plurality of gain coefficients to obtain a plurality of scaled filtered audio signals, and a plurality of adders, each adder configured to combine the plurality of scaled filtered audio signals, thereby providing an output audio signal for producing a sound field having a beam directivity pattern defined by the plurality of gain coefficients.
    Type: Application
    Filed: February 12, 2018
    Publication date: June 28, 2018
    Inventors: Simone FONTANA, Yue LANG, Filippo FAZI, Mincheol SHIN, Ferdinando OLIVERI
  • Patent number: 10008210
    Abstract: A method, an apparatus, and a system for encoding and decoding multi-channel signals are disclosed. The method for encoding multi-channel signals includes: determining the category of an index corresponding to a channel level difference (CLD) which needs to be quantized in a current frame; quantizing the CLD of at least one frequency band whose index category is the same as the determined category of the index in the current frame, and obtaining quantized data.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: June 26, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yue Lang, Wenhai Wu, Lei Miao, Zexin Liu
  • Patent number: 9985597
    Abstract: A digital compressor for compressing an input audio signal is presented. The digital compressor comprises a compression gain control for providing a compression gain parameter, and a compression parameter determiner for determining a compression ratio from the compression gain parameter. The compression parameter determiner may be configured to weight the compression gain parameter by a predetermined weight factor to obtain the compression ratio. The digital compressor further comprises an auxiliary signal generator for manipulating the input audio signal in dependence of the compression ratio to obtain a first auxiliary signal, and a combiner unit for combining the first auxiliary signal with the compression gain parameter to obtain a second auxiliary signal, and for combining the input audio signal with the second auxiliary signal to obtain the compressed audio signal.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: May 29, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Peter Grosche, Yue Lang, Qing Zhang
  • Patent number: 9961474
    Abstract: The disclosure is based on the finding that acoustic near-field transfer functions indicating acoustic near-field propagation channels between loudspeakers and ears of a listener can be employed to pre-process audio signals. Therefore, acoustic near-field distortions of the audio signals can be mitigated. The pre-processed audio signals can be presented to the listener using a wearable frame, wherein the wearable frame comprises the loudspeakers for audio presentation. The disclosure can allow for a high quality rendering of audio signals as well as a high listening comfort for the listener. The disclosure can provide the following advantages. By means of a loudspeaker selection as a function of a spatial audio source direction, cues related to the listener's ears can be generated, making the approach more robust with regard to front/back confusion. The approach can further be extended to an arbitrary number of loudspeaker pairs.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: May 1, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Christof Faller, Alexis Favrot, Yue Lang, Peter Grosche
  • Patent number: 9949053
    Abstract: A method for processing an audio signal includes: decomposing an audio signal comprising spatial information into a set of audio signal components; and processing a first subset of the set of audio signal components according to a first processing scheme and processing a second subset of the set of audio signal components according to a second processing scheme different from the first processing scheme, wherein the first subset comprises audio signal components corresponding to at least one frontal signal source and the second subset comprises audio signal components corresponding to at least one ambient signal source; and wherein the second processing scheme is based on crosstalk cancellation.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: April 17, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Peter Grosche, Yue Lang
  • Publication number: 20180098175
    Abstract: A wave field synthesis apparatus for driving an array of loudspeakers with drive signals, the apparatus includes a sound field synthesizer for generating sound field drive signals for causing the array of loudspeakers to generate one or more sound fields at one or more audio zones, a binaural renderer for generating binaural drive signals for causing the array of loud-speakers to generate specified sound pressures at at least two positions, wherein the at least two positions are determined based on a detected position and/or orientation of a listener, and a decision unit for deciding whether to generate the drive signals using the sound field synthesizer or using the binaural renderer.
    Type: Application
    Filed: October 17, 2017
    Publication date: April 5, 2018
    Inventors: Michael BUERGER, Heinrich LÖLLMANN, Walter KELLERMANN, Peter GROSCHE, Yue LANG
  • Publication number: 20180040335
    Abstract: The invention relates to an audio signal processing apparatus (100) for processing an input earpiece audio signal (x) upon the basis of a microphone audio signal (y), the audio signal processing apparatus (100) comprising a voice activity detector (101) being configured to determine a voice activity indicator signal (xvad) upon the basis of the input earpiece audio signal (x), a noise magnitude determiner (103) being configured to determine a microphone noise magnitude indicator signal (wy) upon the basis of the microphone audio signal (y), a gain factor determiner (105) being configured to determine a gain factor signal (?G) upon the basis of the voice activity indicator signal (xvad) and the microphone noise magnitude indicator signal (wy), and a weighter (107) being configured to weight the input earpiece audio signal (x) by the gain factor signal (?G) to obtain an output earpiece audio signal.
    Type: Application
    Filed: October 20, 2017
    Publication date: February 8, 2018
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Christof FALLER, Alexis Favrot, Peter Grosche, Yue Lang
  • Publication number: 20180027350
    Abstract: A local wave field synthesis apparatus, which includes a determination module for determining desired sound pressures and desired particle velocity vectors at a plurality of control points, a computation module for computing sound pressures and particle velocity vectors at the plurality of control points based on a set of filter parameters, an optimization module for computing an optimum set of filter parameters by jointly optimizing computed sound pressures towards the desired sound pressures and computed particle velocity vectors towards the desired particle velocity vectors, and a generator module for generating the drive signals based on the optimum set of filter parameters, wherein the plurality of control points are located on one or more contours around the one or more audio zones.
    Type: Application
    Filed: October 2, 2017
    Publication date: January 25, 2018
    Inventors: Michael BUERGER, Heinrich LÖLLMANN, Walter KELLERMANN, Karim HELWANI, Peter GROSCHE, Yue LANG
  • Patent number: 9877131
    Abstract: An apparatus and a method for enhancing a spatial perception of an audio signal are provided creating increased interaural-level differences. To obtain this effect, two dipoles are used: one for producing a left audio signal and one for producing a right audio signal.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: January 23, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Peter Grosche, Yue Lang
  • Patent number: 9838825
    Abstract: An audio signal processing device for generating a plurality of output signals for a plurality of loudspeakers from an input audio signal comprises a driving function determining unit adapted to determined driving functions of a plurality of loudspeakers for generating a virtual left binaural signal source and a virtual right binaural signal source based upon a position and a directivity of the virtual left binaural signal source, a position and a directivity of the virtual right binaural signal source and positions of the plurality of loudspeakers. Moreover, it comprises a filtering unit adapted to filter a left binaural signal and a right binaural signal using the driving functions of the plurality of loudspeakers resulting in the plurality of output signals. The left binaural signal and the right binaural signal constitute the input audio signal or are derived there from.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: December 5, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Karim Helwani, Peter Grosche, Yue Lang
  • Publication number: 20170289686
    Abstract: A microphone arrangement and a method using the microphone arrangement for recording surround sound in a mobile device, where the microphone arrangement comprises a first and a second microphone and arranged at a first distance to each other and configured to obtain a stereo signal, and comprises a third microphone configured to obtain a steering signal together with at least one of the first and second microphone or with a fourth microphone. The microphone arrangement also comprises a processor configured to separate the stereo signal into a front stereo signal and a back stereo signal based on the steering signal.
    Type: Application
    Filed: June 19, 2017
    Publication date: October 5, 2017
    Inventors: Christof Faller, Alexis Favrot, Peter Grosche, Yue Lang
  • Patent number: 9767811
    Abstract: According to the invention, a device for post-processing at least one channel signal of a plurality of channel signals of a multi-channel signal is described, the at least one channel signal being generated from a decoded downmix signal by a low-bit-rate audio coding/decoding system, the device comprising: a receiver for receiving the at least one channel signal generated from the decoded downmix signal, a time envelope of the decoded downmix signal, an interchannel time difference between the channel signal and the downmix signal, and a classification indication indicating a transient type of the downmix signal; and a post-processor for post-processing the at least one channel signal based on the time envelope of the decoded downmix signal weighted by a respective weighting factor and in dependence on the classification indication and the interchannel time difference.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: September 19, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yue Lang, David Virette, Lei Miao, Wenhai Wu
  • Patent number: 9763020
    Abstract: A virtual stereo synthesis method includes acquiring at least one sound input signal on a first side and at least one sound input signal on a second side, separately performing ratio processing on a preset head related transfer function (HRTF) left-ear component and a preset HRTF right-ear component of each sound input signal on the second side, to obtain a filtering function of each sound input signal on the second side, separately performing convolution filtering on each sound input signal on the second side and the filtering function of the sound input signal on the second side, to obtain the filtered signal on the second side, and synthesizing all of the sound input signals on the first side and all of the filtered signals on the second side into a virtual stereo signal where the method may alleviate a coloration effect, and reduce calculation complexity.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: September 12, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yue Lang, Zhengzhong Du