Patents by Inventor Changxue Ma
Changxue Ma 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: 20240089673Abstract: A bilateral hearing device system includes a hearing device. The hearing device includes a first input transducer configured for providing a first electric input signal, a second input transducer configured for providing a second electric input signal, a voice detector module configured to detect own voice of a user, the voice detector comprising a first band-pass filter configured for band-pass filtering the first electric input signal and a second band-pass filter configured for band-pass filtering the second electric input signal. The hearing device comprises a processing unit configured to provide a first electric output signal based on the first and second electric input signals; and an output transducer configured to provide an acoustic output signal, wherein the voice detector module is configured for notifying a detection of the own voice to the processing unit if one or more detection criteria are satisfied.Type: ApplicationFiled: November 7, 2023Publication date: March 14, 2024Applicant: GN Hearing A/SInventors: Rob DE VRIES, Changxue MA, Srdjan PETROVIC
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Patent number: 11856370Abstract: An electronic device configured to communicate with a binaural hearing device, includes: a wireless communication unit configured to wirelessly receive, from the binaural hearing device, a signal indicating an orientation of a head of a user of the binaural hearing device; a memory storing head-related transfer functions (HRTF) respectively for a left ear and a right ear of the user; an input transducer configured to capture sound at a distance from the user; and a processing unit configured to provide a spatialized binaural audio signal based on the captured sound, the orientation of the head of the user, and the head-related transfer functions (HRTF); wherein the wireless communication unit is configured to transmit the spatialized binaural audio signal to the binaural hearing device for allowing the binaural hearing device to provide left and right audio outputs based on the spatialized binaural audio signal.Type: GrantFiled: August 27, 2021Date of Patent: December 26, 2023Assignee: GN HEARING A/SInventors: Changxue Ma, Andrew Dittberner, Eugene Brandewie
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Publication number: 20230396942Abstract: A hearing device includes a first input transducer configured for providing a first electric input signal, a second input transducer configured for providing a second electric input signal, a voice detector module configured to detect own voice of a user based on one or more detection criteria, the voice detector comprising a first band-pass filter configured for band-pass filtering the first electric input signal and a second band-pass filter configured for band-pass filtering the second electric input signal. The hearing device further comprises a processing unit configured to provide a first electric output signal based on the first and second electric input signals; and an output transducer configured to provide an acoustic output signal, wherein the voice detector module is further configured for notifying a detection of the own voice to the processing unit if one or more of the detection criteria are satisfied.Type: ApplicationFiled: June 2, 2022Publication date: December 7, 2023Applicant: GN Hearing A/SInventors: Rob DE VRIES, Changxue MA, Srdjan PETROVIC
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Publication number: 20230396936Abstract: A hearing device comprises a first microphone for provision of a first microphone input signal, and a second microphone for provision of a second microphone input signal; a voice detector module for processing the first and second microphone input signals, the voice detector module configured to detect own-voice of a user; a processor for provision of an electrical output signal; and a receiver for providing an audio output signal, wherein the voice detector module is configured to determine a direction parameter indicative of a direction of a sound source based on first and/or second microphone input signal; determine whether a direction criterion based on the direction parameter is satisfied; determine a first distance parameter indicative of a distance to the sound source; determine whether a distance criterion based on the first distance parameter is satisfied; and provide a voice detector output.Type: ApplicationFiled: June 2, 2022Publication date: December 7, 2023Applicant: GN Hearing A/SInventors: Changxue MA, Srdjan PETROVIC
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Publication number: 20230328465Abstract: Disclosed is a method at a binaural hearing device system, the system comprises a first hearing device for placement at, or in, a user’s first ear, the first hearing device comprising a first acoustic input transducer arrangement, a first signal processor, and a first wireless communication interface; and a second hearing device for placement at, or in, the user’s second ear, the second hearing device comprising a second acoustic input transducer arrangement, a second signal processor, and a second wireless communication interface. The method comprises, at a first signal processor, computing a first bilateral beamforming signal based on first and second monaural beamforming signals. Computing the first bilateral beamforming signal comprises an adaptive computation including a variable length FIR filter and a coefficient-based adaptation strategy.Type: ApplicationFiled: March 25, 2022Publication date: October 12, 2023Applicant: GN Hearing A/SInventor: Changxue MA
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Patent number: 11653153Abstract: The present disclosure relates to a method of performing bilateral dynamic range compression of first and second microphone signals generated by first and second hearing devices, respectively, of a binaural hearing system. The method comprises to pick-up sound pressure inside an ear canal of the user's left or right ear by a first microphone to generate a first microphone signal in response to incoming sound and pick-up sound pressure inside an ear canal of the user's opposite ear by a second microphone to generate a second microphone signal in response to the incoming sound.Type: GrantFiled: May 16, 2022Date of Patent: May 16, 2023Assignee: GN HEARING A/SInventors: Tobias Piechowiak, Antonie Johannes Hendrikse, Changxue Ma
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Patent number: 11617037Abstract: A method performed by a first hearing device comprising microphone(s) configured to generate a first input signal, a communication unit configured to receive a second input signal from a second hearing device, an output unit, and a processor, the method comprising: generating a first intermediate signal including or based on a first weighted combination of the first input signal and the second input signal, wherein the first weighted combination is based on a first gain value and/or a second gain value; and generating an output signal for the output unit based on the first intermediate signal; wherein one or both of the first gain value and the second gain value are determined in accordance with an objective of making a power of the first input signal and a power of the second input signal differ by a preset power level difference greater than 2 dB in the weighted combination.Type: GrantFiled: April 29, 2021Date of Patent: March 28, 2023Assignee: GN HEARING A/SInventor: Changxue Ma
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Publication number: 20220369029Abstract: A method performed by a first hearing device comprising microphone(s) configured to generate a first input signal, a communication unit configured to receive a second input signal from a second hearing device, an output unit, and a processor, the method comprising: generating a first intermediate signal including or based on a first weighted combination of the first input signal and the second input signal, wherein the first weighted combination is based on a first gain value and/or a second gain value; and generating an output signal for the output unit based on the first intermediate signal; wherein one or both of the first gain value and the second gain value are determined in accordance with an objective of making a power of the first input signal and a power of the second input signal differ by a preset power level difference greater than 2 dB in the weighted combination.Type: ApplicationFiled: April 29, 2021Publication date: November 17, 2022Applicant: GN Hearing A/SInventor: Changxue MA
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Publication number: 20220279288Abstract: The present disclosure relates to a method of performing bilateral dynamic range compression of first and second microphone signals generated by first and second hearing devices, respectively, of a binaural hearing system. The method comprises to pick-up sound pressure inside an ear canal of the user's left or right ear by a first microphone to generate a first microphone signal in response to incoming sound and pick-up sound pressure inside an ear canal of the user's opposite ear by a second microphone to generate a second microphone signal in response to the incoming sound.Type: ApplicationFiled: May 16, 2022Publication date: September 1, 2022Applicant: GN Hearing A/SInventors: Tobias Piechowiak, Antonie Johannes Hendrikse, Changxue MA
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Patent number: 11368796Abstract: The present disclosure relates to a method of performing bilateral dynamic range compression of first and second microphone signals generated by first and second hearing aids, respectively, of a binaural hearing aid system. The method comprises to pick-up sound pressure inside an ear canal of the user's left or right ear by a first microphone to generate a first microphone signal in response to incoming sound and pick-up sound pressure inside an ear canal of the user's opposite ear by a second microphone to generate a second microphone signal in response to the incoming sound.Type: GrantFiled: November 24, 2020Date of Patent: June 21, 2022Assignee: GN Hearing A/SInventors: Tobias Piechowiak, Antonie Johannes Hendrikse, Changxue Ma
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Publication number: 20220167097Abstract: The present disclosure relates to a method of performing bilateral dynamic range compression of first and second microphone signals generated by first and second hearing aids, respectively, of a binaural hearing aid system. The method comprises to pick-up sound pressure inside an ear canal of the user's left or right ear by a first microphone to generate a first microphone signal in response to incoming sound and pick-up sound pressure inside an ear canal of the user's opposite ear by a second microphone to generate a second microphone signal in response to the incoming sound.Type: ApplicationFiled: November 24, 2020Publication date: May 26, 2022Applicant: GN Hearing A/SInventors: Tobias Piechowiak, Antonie Johannes Hendrikse, Changxue MA
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Publication number: 20210392448Abstract: An electronic device configured to communicate with a binaural hearing device, includes: a wireless communication unit configured to wirelessly receive, from the binaural hearing device, a signal indicating an orientation of a head of a user of the binaural hearing device; a memory storing head-related transfer functions (HRTF) respectively for a left ear and a right ear of the user; an input transducer configured to capture sound at a distance from the user; and a processing unit configured to provide a spatialized binaural audio signal based on the captured sound, the orientation of the head of the user, and the head-related transfer functions (HRTF); wherein the wireless communication unit is configured to transmit the spatialized binaural audio signal to the binaural hearing device for allowing the binaural hearing device to provide left and right audio outputs based on the spatialized binaural audio signal.Type: ApplicationFiled: August 27, 2021Publication date: December 16, 2021Inventors: Changxue MA, Andrew DITTBERNER, Eugene BRANDEWIE
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Patent number: 11153695Abstract: A method performed by a first hearing device, includes: determining a first gain value, a second gain value, or both the first and second gain values; generating an intermediate signal including or based on a combination of the first directional input signal and the second directional input signal, wherein the first and second directional input signals in the combination are combined based on the first gain value, the second gain value, or both of the first and second gain values; and generating an output signal for the output unit based on the intermediate signal; wherein one or both of the first gain value and the second gain value are determined in accordance with an objective of making a proportion of the first directional input signal and a proportion of the second directional signal at least substantially equal.Type: GrantFiled: March 23, 2020Date of Patent: October 19, 2021Assignee: GN Hearing A/SInventor: Changxue Ma
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Publication number: 20210297792Abstract: A method performed by a first hearing device, includes: determining a first gain value, a second gain value, or both the first and second gain values; generating an intermediate signal including or based on a combination of the first directional input signal and the second directional input signal, wherein the first and second directional input signals in the combination are combined based on the first gain value, the second gain value, or both of the first and second gain values; and generating an output signal for the output unit based on the intermediate signal; wherein one or both of the first gain value and the second gain value are determined in accordance with an objective of making a proportion of the first directional input signal and a proportion of the second directional signal at least substantially equal.Type: ApplicationFiled: March 23, 2020Publication date: September 23, 2021Applicant: GN HEARING A/SInventor: Changxue MA
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Patent number: 11109167Abstract: The present disclosure relates to methods of performing bilateral processing of respective microphone signals of a left ear hearing aid and a right ear hearing aid of a binaural hearing aid system and to corresponding binaural hearing aid systems.Type: GrantFiled: November 5, 2019Date of Patent: August 31, 2021Inventors: Changxue Ma, Andrew Burke Dittberner, Rob Anton Jurjen De Vries
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Publication number: 20210136501Abstract: The present disclosure relates to methods of performing bilateral processing of respective microphone signals of a left ear hearing aid and a right ear hearing aid of a binaural hearing aid system and to corresponding binaural hearing aid systems.Type: ApplicationFiled: November 5, 2019Publication date: May 6, 2021Applicant: GN HEARING A/SInventors: Changxue MA, Andrew Burke DITTBERNER, Rob Anton Jurjen DE VRIES
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Patent number: 10911877Abstract: Disclosed is a hearing device and method of operating a hearing device in a binaural hearing system, the method comprising: receiving distal data from a distal hearing device; receiving an audio signal and converting the audio signal to a first microphone input signal and a second microphone input signal; and determining a beamforming scheme based on the distal data, the first microphone input signal, and the second microphone input signal, wherein determining the beamforming scheme comprises obtaining a zero-direction index, and wherein the beamforming scheme is based on the zero-direction index; and applying the beamforming scheme in a beamforming module of the hearing device.Type: GrantFiled: December 23, 2016Date of Patent: February 2, 2021Assignee: GN Hearing A/SInventors: Rob De Vries, Changxue Ma, Andrew Dittberner
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Patent number: 10848880Abstract: A hearing device for a binaural hearing system comprising the hearing device and a contralateral hearing device, comprising: a transceiver module for obtaining a contralateral filtered beamform signal from the contralateral hearing device; microphones for provision of a first and second microphone input signals; a first beamforming module for provision of a first beamform signal based on the first and second microphone input signals; a filter bank, connected to the first beamforming module, for filtering the first beamform signal into a plurality of filtered beamform signals including a first bandpass beamform signal; a bandpass beamformer coupled to the filter bank; an adder, connected to the bandpass beamformer, for provision of a beamformed input signal; a processing circuit for processing the beamformed input signal and providing an electrical output signal based on the beamformed input signal; and a receiver for converting the electrical output signal to an audio output signal.Type: GrantFiled: December 10, 2019Date of Patent: November 24, 2020Assignee: GN Hearing A/SInventors: Rob De Vries, Changxue Ma, Andrew Dittberner
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Patent number: 10715933Abstract: A binaural hearing aid system includes first and second hearing aids. A first signal processor of the first hearing aid is configured to generate a first monaural beamforming signal based on microphone signal(s) supplied by a first microphone arrangement of the first hearing aid, the first monaural beamforming signal exhibiting a first polar pattern with maximum sensitivity in a target direction. The first signal processor is also configured to: generate a bilateral beamforming signal based on the first monaural beamforming signal and a second monaural beamforming signal from the second hearing aid; generate a third monaural beamforming signal based on the microphone signal(s) and exhibiting a third polar pattern with maximum sensitivity at the ipsilateral side of the first hearing aid; delay the third monaural beamforming signal; and combine the first bilateral beamforming signal and the time-delayed third monaural beamforming signal to form a first hybrid beamforming signal.Type: GrantFiled: June 4, 2019Date of Patent: July 14, 2020Assignee: GN HEARING A/SInventors: Changxue Ma, Jonathan Boley
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Patent number: 10681476Abstract: A hearing device of a binaural hearing system is disclosed, the binaural hearing system comprising the hearing device and a contralateral hearing device. The hearing device comprises: a transceiver module for communication with the contralateral hearing device of the binaural system, the transceiver module configured for provision of a contralateral signal received from the contralateral hearing device; and a set of microphones comprising a first microphone and a second microphone for provision of a first microphone input signal and a second microphone input signal, respectively. The hearing device comprises: a beamforming module connected to the first microphone and the second microphone for processing the first microphone input signal, the second microphone input signal and the contralateral signal, the beamforming module configured to provide a first beamformed input signal. The hearing device comprises a beamforming controller connected to the beamforming module and the transceiver module.Type: GrantFiled: December 7, 2018Date of Patent: June 9, 2020Assignee: GN HEARING A/SInventors: Changxue Ma, Rob De Vries, Andrew Dittberner