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).

  • Patent number: 10681477
    Abstract: 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: Grant
    Filed: November 5, 2019
    Date of Patent: June 9, 2020
    Assignee: GN HEARING A/S
    Inventors: Changxue Ma, Andrew Burke Dittberner, Rob Anton Jurjen De Vries
  • Patent number: 10664229
    Abstract: A method, apparatus, and electronic device for voice navigation are disclosed. A voice input mechanism 310 may receive a verbal input from a user to a voice user interface program invisible to the user. A processor 104 may identify in a graphical user interface (GUI) a set of GUI items. The processor 104 may convert the set of GUI items to a set of voice searchable indices 400. The processor 104 may correlate a matching GUI item of the set of GUI items to a phonemic representation of the verbal input.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: May 26, 2020
    Assignee: Google LLC
    Inventors: Yan Ming Cheng, Changxue Ma, Theodore Mazurkiewicz
  • Publication number: 20200112803
    Abstract: 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: Application
    Filed: December 10, 2019
    Publication date: April 9, 2020
    Applicant: GN HEARING A/S
    Inventors: Rob DE VRIES, Changxue MA, Andrew DITTBERNER
  • Patent number: 10555094
    Abstract: A hearing device for a binaural hearing system comprising the hearing device and a contralateral hearing device is disclosed. The hearing device comprises a transceiver module; microphones for provision of first and second microphone input signal; a first beamforming module for provision of a first beamform signal based on the first microphone input signal and the second microphone input signal; a filter bank for filtering the first beamform signal into a plurality of first sub-band beamform signals including a first bandpass beamform signal, and for filtering a contralateral beamform signal into a contralateral bandpass beamform signal; a second beamforming module comprising an adaptive bandpass beamformer for provision of a second bandpass beamform signal; an adder for provision of a beamformed input signal; a processor for 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: Grant
    Filed: January 25, 2018
    Date of Patent: February 4, 2020
    Assignee: GN HEARING A/S
    Inventors: Rob De Vries, Changxue Ma, Andrew Dittberner
  • Patent number: 10542354
    Abstract: A hearing device includes: an input module for provision of a first input signal, the input module comprising a first microphone; a processor for provision of a processor output signal based on the first input signal; a suppressor for provision of a first suppressor output signal based on one or more suppressor input signals including a first suppressor input signal; a first adder coupled to the suppressor, the first adder configured for provision of a first adder output signal based on at least a part of the processor output signal and the first suppressor output signal; and a receiver for converting an output signal based on the first adder output signal to an audio output signal; wherein the suppressor is configured to apply a first delay and a first filter with a first gain to at least a part of the first suppressor input signal.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: January 21, 2020
    Assignee: GN Hearing A/S
    Inventors: Andreas Tiefenau, Jonathan Boley, Changxue Ma
  • Patent number: 10536785
    Abstract: A method of operating a hearing device and a hearing device are disclosed. The method comprises obtaining a first microphone signal and a second microphone signal. The method comprises obtaining a first beamform signal based on the first microphone signal and the second microphone signal. The method may comprise obtaining a second beamform signal based on the first microphone signal and the second microphone signal. The method comprises determining a first parameter based on the first beamform signal. The method may comprise combining the first beamform signal and the second beamform signal based on the first parameter for provision of an output beamform signal. The method comprises providing the output beamform signal for further processing including hearing loss compensation.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 14, 2020
    Assignee: Gn Hearing A/S
    Inventors: Changxue Ma, Rob De Vries, Andrew Dittberner
  • Publication number: 20190174236
    Abstract: 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: Application
    Filed: December 7, 2018
    Publication date: June 6, 2019
    Applicant: GN HEARING A/S
    Inventors: Changxue Ma, Rob De Vries, Andrew Dittberner
  • Publication number: 20190174235
    Abstract: A method of operating a hearing device and a hearing device are disclosed. The method comprises obtaining a first microphone signal and a second microphone signal. The method comprises obtaining a first beamform signal based on the first microphone signal and the second microphone signal. The method may comprise obtaining a second beamform signal based on the first microphone signal and the second microphone signal. The method comprises determining a first parameter based on the first beamform signal. The method may comprise combining the first beamform signal and the second beamform signal based on the first parameter for provision of an output beamform signal. The method comprises providing the output beamform signal for further processing including hearing loss compensation.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 6, 2019
    Applicant: Gn Hearing A/S
    Inventors: Changxue MA, Rob De Vries, Andrew Dittberner
  • Patent number: 10182299
    Abstract: 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: Grant
    Filed: December 5, 2017
    Date of Patent: January 15, 2019
    Assignee: GN Hearing A/S
    Inventors: Changxue Ma, Rob De Vries, Andrew Dittberner
  • Publication number: 20180376258
    Abstract: A hearing device includes: an input module for provision of a first input signal, the input module comprising a first microphone; a processor for provision of a processor output signal based on the first input signal; a suppressor for provision of a first suppressor output signal based on one or more suppressor input signals including a first suppressor input signal; a first adder coupled to the suppressor, the first adder configured for provision of a first adder output signal based on at least a part of the processor output signal and the first suppressor output signal; and a receiver for converting an output signal based on the first adder output signal to an audio output signal; wherein the suppressor is configured to apply a first delay and a first filter with a first gain to at least a part of the first suppressor input signal.
    Type: Application
    Filed: June 23, 2017
    Publication date: December 27, 2018
    Applicant: GN Hearing A/S
    Inventors: Andreas TIEFENAU, Jonathan BOLEY, Changxue MA
  • Publication number: 20180288535
    Abstract: A hearing device for a binaural hearing system comprising the hearing device and a contralateral hearing device is disclosed. The hearing device comprises a transceiver module; microphones for provision of first and second microphone input signal; a first beamforming module for provision of a first beamform signal based on the first microphone input signal and the second microphone input signal; a filter bank for filtering the first beamform signal into a plurality of first sub-band beamform signals including a first bandpass beamform signal, and for filtering a contralateral beamform signal into a contralateral bandpass beamform signal; a second beamforming module comprising an adaptive bandpass beamformer for provision of a second bandpass beamform signal; an adder for provision of a beamformed input signal; a processor for 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: Application
    Filed: January 25, 2018
    Publication date: October 4, 2018
    Applicant: GN HEARING A/S
    Inventors: Rob DE VRIES, Changxue MA, Andrew DITTBERNER
  • Publication number: 20180184214
    Abstract: 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: Application
    Filed: December 23, 2016
    Publication date: June 28, 2018
    Applicant: GN Hearing A/S
    Inventors: Rob DE VRIES, Changxue MA, Andrew DITTBERNER
  • Patent number: 9386373
    Abstract: A system and method for estimating a reverberation time is provided. The method includes estimating at least one room response of an audio capture environment with an acoustic echo canceller and generating an estimate of the reverberation time of the audio capture environment based on the at least one room response from the acoustic echo canceller.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: July 5, 2016
    Assignee: DTS, INC.
    Inventors: Changxue Ma, Guangji Shi, Jean-Marc Jot
  • Patent number: 9081868
    Abstract: A search system will receive a voice query and use speech recognition with a predefined vocabulary to generate a textual transcription of the voice query. Queries are sent to a text search engine, retrieving multiple web page results for each of these initial text queries. The collection of the keywords is extracted from the resulting web pages and is phonetically indexed to form a voice query dependent and phonetically searchable index database. Finally, a phonetically-based voice search engine is used to search the original voice query against the voice query dependent and phonetically searchable index database to find the keywords and/or key phrases that best match what was originally spoken. The keywords and/or key phrases that best match what was originally spoken are then used as a final text query for a search engine. Search results from the final text query are then presented to the user.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: July 14, 2015
    Assignee: GOOGLE TECHNOLOGY HOLDINGS LLC
    Inventors: Fan Zhang, Yan-Ming Cheng, Changxue Ma, James R. Talley
  • Patent number: 9031843
    Abstract: A method and apparatus for enabling multimodal tags in a communication device is disclosed. The method comprises receiving a first training signal and receiving a second training signal in conjunction with the first training signal. A multimodal tag is created by discarding redundant or non-discriminative information associated with each of the first and second training signals to represent a combination of the first training signal and the second training signal and a function is associated with the created multimodal tag.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: May 12, 2015
    Assignee: Google Technology Holdings LLC
    Inventors: Changxue Ma, Harry M. Bliss
  • Publication number: 20150033187
    Abstract: An electronic device including a processor communicably coupled to a display component wherein the processor is configured to generate and display an interactive icon on the display component. The interactive icon includes a primary item and at least one alternative item, and the processor is configured to visually prioritize the presentation of the primary item on the display component relative to the presentation of the alternative item.
    Type: Application
    Filed: October 13, 2014
    Publication date: January 29, 2015
    Inventors: Shuang Xu, Changxue Ma
  • Patent number: 8914289
    Abstract: A method for parsing a verbal expression received from a user to determine whether or not the expression contains a multiple-goal command is described. Specifically, known techniques are applied to extract terms from the verbal expression. The extracted terms are assigned to categories. If two or more terms are found in the parsed verbal expression that are in associated categories and that do not overlap one another temporally, then the confidence levels of these terms are compared. If the confidence levels are similar, then the terms may be parallel entries in the verbal expression and may represent multiple goals. If a multiple-goal command is found, then the command is either presented to the user for review and possible editing or is executed. If the parsed multiple-goal command is presented to the user for review, then the presentation can be made via any appropriate interface including voice and text interfaces.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: December 16, 2014
    Assignee: Symbol Technologies, Inc.
    Inventors: Changxue Ma, Yan-Ming Cheng
  • Publication number: 20140358903
    Abstract: A method, apparatus, and electronic device for voice navigation are disclosed. A voice input mechanism 310 may receive a verbal input from a user to a voice user interface program invisible to the user. A processor 104 may identify in a graphical user interface (GUI) a set of GUI items. The processor 104 may convert the set of GUI items to a set of voice searchable indices 400. The processor 104 may correlate a matching GUI item of the set of GUI items to a phonemic representation of the verbal input.
    Type: Application
    Filed: August 20, 2014
    Publication date: December 4, 2014
    Inventors: Yan Ming Cheng, Changxue Ma, Theodore Mazurkiewicz
  • Publication number: 20140037094
    Abstract: A system and method for estimating a reverberation time is provided. The method includes estimating at least one room response of an audio capture environment with an acoustic echo canceller and generating an estimate of the reverberation time of the audio capture environment based on the at least one room response from the acoustic echo canceller.
    Type: Application
    Filed: June 20, 2013
    Publication date: February 6, 2014
    Inventors: Changxue Ma, Guangji Shi, Jean-Marc Jot
  • Patent number: 8442823
    Abstract: A method of performing a search of a database of speakers, includes: receiving a query speech sample spoken by a query speaker; deriving a query utterance from the query speech sample; extracting query utterance statistics from the query utterance; performing Kernelized Locality-Sensitive Hashing (KLSH) using a kernel function, the KLSH using as input the query utterance statistics and utterance statistics extracted from a plurality of utterances included in a database of speakers in order to select a subset of the plurality of utterances; and comparing, using an utterance comparison equation, the query utterance statistics to the utterance statistics for each utterance in the subset to generate a list of speakers from the database of utterances having a highest similarity to the query speaker.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: May 14, 2013
    Assignee: Motorola Solutions, Inc.
    Inventors: Woojay Jeon, Yan-Ming Cheng, Changxue Ma, Dusan Macho