Patents by Inventor Xiguang ZHENG
Xiguang ZHENG 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).
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Publication number: 20190342685Abstract: The present disclosure relates to reverberation generation for headphone virtualization. A method of generating one or more components of a binaural room impulse response (BRIR) for headphone virtualization is described. In the method, directionally-controlled reflections are generated, wherein directionally-controlled reflections impart a desired perceptual cue to an audio input signal corresponding to a sound source location. Then at least the generated reflections are combined to obtain the one or more components of the BRIR. Corresponding system and computer program products are described as well.Type: ApplicationFiled: July 12, 2019Publication date: November 7, 2019Applicant: Dolby Laboratories Licensing CorporationInventors: Louis D. FIELDER, Zhiwei SHUANG, Grant A. DAVIDSON, Xiguang ZHENG, Mark S. VINTON
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Patent number: 10382875Abstract: The present disclosure relates to reverberation generation for headphone virtualization. A method of generating one or more components of a binaural room impulse response (BRIR) for headphone virtualization is described. In the method, directionally-controlled reflections are generated, wherein directionally-controlled reflections impart a desired perceptual cue to an audio input signal corresponding to a sound source location. Then at least the generated reflections are combined to obtain the one or more components of the BRIR. Corresponding system and computer program products are described as well.Type: GrantFiled: October 18, 2018Date of Patent: August 13, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Louis D. Fielder, Zhiwei Shuang, Grant A. Davidson, Xiguang Zheng, Mark S. Vinton
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Patent number: 10362401Abstract: Example embodiments disclosed herein relate to orientation-aware surround sound playback. A method for processing audio on an electronic device that includes a plurality of loudspeakers is disclosed, the loudspeakers arranged in more than one dimension of the electronic device. The method includes, responsive to receipt of a plurality of received audio streams, generating a rendering component associated with the plurality of received audio streams, determining an orientation dependent component of the rendering component, processing the rendering component by updating the orientation dependent component according to an orientation of the loudspeakers and dispatching the received audio streams to the plurality of loudspeakers for playback based on the processed rendering component. Corresponding system and computer program products are also disclosed.Type: GrantFiled: August 27, 2015Date of Patent: July 23, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Xuejing Sun, Guilin Ma, Xiguang Zheng
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Patent number: 10356524Abstract: Example embodiments disclosed herein relate to user experience oriented audio signal processing. There is provided a method for user experience oriented audio signal processing. The method includes obtaining a first audio signal from an audio sensor of an electronic device; computing, based on the first audio signal, a compensation factor for an acoustic path from the electronic device to a listener and applying the compensation factor to a second audio signal outputted from the electronic device. Corresponding system and computer program products are disclosed.Type: GrantFiled: December 14, 2017Date of Patent: July 16, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Guilin Ma, Xiguang Zheng, Chen Zhang, Xuejing Sun
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Patent number: 10242659Abstract: The disclosure relates to combined active noise cancellation and noise compensation in a headphone. An audio processing device includes a selector and a noise compensation unit. The selector can select one of a plurality of first transfer functions based on at least one feature of at least one of an external noise and a content audio signal representing a sound to be reproduced through the headphone. The noise compensation unit can compute a second audio signal by applying the selected first transfer function to a first audio signal, and derive gains for the noise compensation at least based on the second audio signal. The at least one feature can be used to distinguish at least two of the first transfer functions. Each of the first transfer functions can transform the first audio signal to the second audio signal which is assumed as representing a version of the sound represented by the first audio signal, which arrives at an eardrum of a listener wearing the headphone.Type: GrantFiled: January 23, 2018Date of Patent: March 26, 2019Assignee: Dolby Laboratories Licensing CorporationInventors: Guilin Ma, Xiguang Zheng
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Publication number: 20190052989Abstract: The present disclosure relates to reverberation generation for headphone virtualization. A method of generating one or more components of a binaural room impulse response (BRIR) for headphone virtualization is described. In the method, directionally-controlled reflections are generated, wherein directionally-controlled reflections impart a desired perceptual cue to an audio input signal corresponding to a sound source location. Then at least the generated reflections are combined to obtain the one or more components of the BRIR. Corresponding system and computer program products are described as well.Type: ApplicationFiled: October 18, 2018Publication date: February 14, 2019Applicant: Dolby Laboratories Licensing CorporationInventors: Louis D. FIELDER, Zhiwei SHUANG, Grant A. DAVIDSON, Xiguang ZHENG, Mark S. VINTON
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Patent number: 10149082Abstract: The present disclosure relates to reverberation generation for headphone virtualization. A method of generating one or more components of a binaural room impulse response (BRIR) for headphone virtualization is described. In the method, directionally-controlled reflections are generated, wherein directionally-controlled reflections impart a desired perceptual cue to an audio input signal corresponding to a sound source location. Then at least the generated reflections are combined to obtain the one or more components of the BRIR. Corresponding system and computer program products are described as well.Type: GrantFiled: February 11, 2016Date of Patent: December 4, 2018Assignee: Dolby Laboratories Licensing CorporationInventors: Louis D. Fielder, Zhiwei Shuang, Grant A. Davidson, Xiguang Zheng, Mark S. Vinton
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Patent number: 10096329Abstract: Embodiments of the present invention relate to signal processing. Methods for enhancing intelligibility of speech content in an audio signal are disclosed. One of the methods comprises obtaining reference loudness of the audio signal. The method further comprises enhancing the intelligibility of the speech content by adjusting partial loudness of the audio signal based on the reference loudness and a degree of the intelligibility. Corresponding systems and computer program products are also disclosed.Type: GrantFiled: May 22, 2015Date of Patent: October 9, 2018Assignee: Dolby Laboratories Licensing CorporationInventors: Guilin Ma, Xiguang Zheng, C. Phillip Brown
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Patent number: 10038961Abstract: Example embodiments disclosed herein relate to modelling a frequency response characteristic of an electro-acoustic transducer. A method includes obtaining at least one measurement of the frequency response characteristic for at least one electro-acoustic transducer of the category. A model of a frequency response characteristic specific to a category of electro-acoustic transducers is generated at least in part based on perceptual importance of a frequency band, an averaged, normalized or microphone compensated measurement such that the distortion of the model is optimized. A further method for estimating a frequency response characteristic of an electro-acoustic transducer is based on the generated model and the sensitivity of the electro-acoustic transducer or headphone. Corresponding system and computer program product are also disclosed.Type: GrantFiled: June 2, 2015Date of Patent: July 31, 2018Assignee: Dolby Laboratories Licensing CorporationInventors: Guilin Ma, Xiguang Zheng, C. Phillip Brown
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Publication number: 20180151170Abstract: The disclosure relates to combined active noise cancellation and noise compensation in a headphone. An audio processing device includes a selector and a noise compensation unit. The selector can select one of a plurality of first transfer functions based on at least one feature of at least one of an external noise and a content audio signal representing a sound to be reproduced through the headphone. The noise compensation unit can compute a second audio signal by applying the selected first transfer function to a first audio signal, and derive gains for the noise compensation at least based on the second audio signal. The at least one feature can be used to distinguish at least two of the first transfer functions. Each of the first transfer functions can transform the first audio signal to the second audio signal which is assumed as representing a version of the sound represented by the first audio signal, which arrives at an eardrum of a listener wearing the headphone.Type: ApplicationFiled: January 23, 2018Publication date: May 31, 2018Applicant: Dolby Laboratories Licensing CorporationInventors: Guilin MA, Xiguang ZHENG
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Publication number: 20180109874Abstract: Example embodiments disclosed herein relate to user experience oriented audio signal processing. There is provided a method for user experience oriented audio signal processing. The method includes obtaining a first audio signal from an audio sensor of an electronic device; computing, based on the first audio signal, a compensation factor for an acoustic path from the electronic device to a listener and applying the compensation factor to a second audio signal outputted from the electronic device. Corresponding system and computer program products are disclosed.Type: ApplicationFiled: December 14, 2017Publication date: April 19, 2018Applicant: Dolby Laboratories Licensing CorporationInventors: Guilin MA, Xiguang ZHENG, Chen ZHANG, Xuejing SUN
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Patent number: 9911404Abstract: The disclosure relates to combined active noise cancellation and noise compensation in a headphone. An audio processing device includes a selector and a noise compensation unit. The selector can select one of a plurality of first transfer functions based on at least one feature of at least one of an external noise and a content audio signal representing a sound to be reproduced through the headphone. The noise compensation unit can compute a second audio signal by applying the selected first transfer function to a first audio signal, and derive gains for the noise compensation at least based on the second audio signal. The at least one feature can be used to distinguish at least two of the first transfer functions. Each of the first transfer functions can transform the first audio signal to the second audio signal which is assumed as representing a version of the sound represented by the first audio signal, which arrives at an eardrum of a listener wearing the headphone.Type: GrantFiled: September 30, 2015Date of Patent: March 6, 2018Assignee: Dolby Laboratories Licensing CorporationInventors: Guilin Ma, Xiguang Zheng
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Publication number: 20180035233Abstract: The present disclosure relates to reverberation generation for headphone virtualization. A method of generating one or more components of a binaural room impulse response (BRIR) for headphone virtualization is described. In the method, directionally-controlled reflections are generated, wherein directionally-controlled reflections impart a desired perceptual cue to an audio input signal corresponding to a sound source location. Then at least the generated reflections are combined to obtain the one or more components of the BRIR. Corresponding system and computer program products are described as well.Type: ApplicationFiled: February 11, 2016Publication date: February 1, 2018Applicant: Dolby Laboratories Licensing CorporationInventors: Louis D. FIELDER, Zhiwei SHUANG, Grant A. DAVIDSON, Xiguang ZHENG, Mark S. VINTON
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Patent number: 9877108Abstract: Example embodiments disclosed herein relate to user experience oriented audio signal processing. There is provided a method for user experience oriented audio signal processing. The method includes obtaining a first audio signal from an audio sensor of an electronic device; computing, based on the first audio signal, a compensation factor for an acoustic path from the electronic device to a listener and applying the compensation factor to a second audio signal outputted from the electronic device. Corresponding system and computer program products are disclosed.Type: GrantFiled: October 13, 2015Date of Patent: January 23, 2018Assignee: Dolby Laboratories Licensing CorporationInventors: Guilin Ma, Xiguang Zheng, Chen Zhang, Xuejing Sun
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Publication number: 20170245055Abstract: Example embodiments disclosed herein relate to orientation-aware surround sound playback. A method for processing audio on an electronic device that includes a plurality of loudspeakers is disclosed, the loudspeakers arranged in more than one dimension of the electronic device. The method includes, responsive to receipt of a plurality of received audio streams, generating a rendering component associated with the plurality of received audio streams, determining an orientation dependent component of the rendering component, processing the rendering component by updating the orientation dependent component according to an orientation of the loudspeakers and dispatching the received audio streams to the plurality of loudspeakers for playback based on the processed rendering component. Corresponding system and computer program products are also disclosed.Type: ApplicationFiled: August 27, 2015Publication date: August 24, 2017Applicant: Dolby Laboratories Licensing CorporationInventors: Xuejing SUN, Giulin MA, Xiguang ZHENG
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Publication number: 20170223456Abstract: Example embodiments disclosed herein relate to user experience oriented audio signal processing. There is provided a method for user experience oriented audio signal processing. The method includes obtaining a first audio signal from an audio sensor of an electronic device; computing, based on the first audio signal, a compensation factor for an acoustic path from the electronic device to a listener and applying the compensation factor to a second audio signal outputted from the electronic device. Corresponding system and computer program products are disclosed.Type: ApplicationFiled: October 13, 2015Publication date: August 3, 2017Applicant: Dolby Laboratories Licensing CorporationInventors: Guilin MA, Xiguang ZHENG, Chen ZHANG, Xuejing SUN
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Publication number: 20170222611Abstract: Example embodiments disclosed herein relate to audio signal loudness control. A method for controlling loudness of an audio signal is disclosed. The method includes responsive to determining presence of a noise signal, deriving a target partial loudness adjustment based, at least in part, on at least one of a first factor related to the noise signal and a second factor related to the audio signal. The method further includes determining a target partial loudness of the audio signal based, at least in part, on the target partial loudness adjustment. Corresponding system, apparatus and computer program product are also disclosed.Type: ApplicationFiled: May 22, 2015Publication date: August 3, 2017Applicant: Dolby Laboratories Licensing CorporationInventors: Guilin MA, Xiguang ZHENG
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Publication number: 20170213540Abstract: The disclosure relates to combined active noise cancellation and noise compensation in a headphone. An audio processing device includes a selector and a noise compensation unit. The selector can select one of a plurality of first transfer functions based on at least one feature of at least one of an external noise and a content audio signal representing a sound to be reproduced through the headphone. The noise compensation unit can compute a second audio signal by applying the selected first transfer function to a first audio signal, and derive gains for the noise compensation at least based on the second audio signal. The at least one feature can be used to distinguish at least two of the first transfer functions. Each of the first transfer functions can transform the first audio signal to the second audio signal which is assumed as representing a version of the sound represented by the first audio signal, which arrives at an eardrum of a listener wearing the headphone.Type: ApplicationFiled: September 30, 2015Publication date: July 27, 2017Applicant: Dolby Laboratories Licensing CorporationInventors: Guilin MA, Xiguang ZHENG
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Publication number: 20170099554Abstract: Example embodiments disclosed herein relate to modelling a frequency response characteristic of an electro-acoustic transducer. A method includes obtaining at least one measurement of the frequency response characteristic for at least one electro-acoustic transducer of the category. A model of a frequency response characteristic specific to a category of electro-acoustic transducers is generated at least in part based on perceptual importance of a frequency band, an averaged, normalized or microphone compensated measurement such that the distortion of the model is optimized. A further method for estimating a frequency response characteristic of an electro-acoustic transducer is based on the generated model and the sensitivity of the electro-acoustic transducer or headphone. Corresponding system and computer program product are also disclosed.Type: ApplicationFiled: June 2, 2015Publication date: April 6, 2017Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Guilin MA, Xiguang ZHENG, C. Phillip BROWN
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Publication number: 20170098456Abstract: Embodiments of the present invention relate to signal processing. Methods for enhancing intelligibility of speech content in an audio signal are disclosed. One of the methods comprises obtaining reference loudness of the audio signal. The method further comprises enhancing the intelligibility of the speech content by adjusting partial loudness of the audio signal based on the reference loudness and a degree of the intelligibility. Corresponding systems and computer program products are also disclosed.Type: ApplicationFiled: May 22, 2015Publication date: April 6, 2017Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Guilin MA, Xiguang ZHENG, C. Phillip BROWN