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: 10681477Abstract: 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: June 9, 2020Assignee: GN HEARING A/SInventors: Changxue Ma, Andrew Burke Dittberner, Rob Anton Jurjen De Vries
-
Patent number: 10664229Abstract: 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: GrantFiled: August 20, 2014Date of Patent: May 26, 2020Assignee: Google LLCInventors: Yan Ming Cheng, Changxue Ma, Theodore Mazurkiewicz
-
Publication number: 20200112803Abstract: 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: ApplicationFiled: December 10, 2019Publication date: April 9, 2020Applicant: GN HEARING A/SInventors: Rob DE VRIES, Changxue MA, Andrew DITTBERNER
-
Patent number: 10555094Abstract: 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: GrantFiled: January 25, 2018Date of Patent: February 4, 2020Assignee: GN HEARING A/SInventors: Rob De Vries, Changxue Ma, Andrew Dittberner
-
Patent number: 10542354Abstract: 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: GrantFiled: June 23, 2017Date of Patent: January 21, 2020Assignee: GN Hearing A/SInventors: Andreas Tiefenau, Jonathan Boley, Changxue Ma
-
Patent number: 10536785Abstract: 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: GrantFiled: December 5, 2017Date of Patent: January 14, 2020Assignee: Gn Hearing A/SInventors: Changxue Ma, Rob De Vries, Andrew Dittberner
-
Publication number: 20190174236Abstract: 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: ApplicationFiled: December 7, 2018Publication date: June 6, 2019Applicant: GN HEARING A/SInventors: Changxue Ma, Rob De Vries, Andrew Dittberner
-
Publication number: 20190174235Abstract: 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: ApplicationFiled: December 5, 2017Publication date: June 6, 2019Applicant: Gn Hearing A/SInventors: Changxue MA, Rob De Vries, Andrew Dittberner
-
Patent number: 10182299Abstract: 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 5, 2017Date of Patent: January 15, 2019Assignee: GN Hearing A/SInventors: Changxue Ma, Rob De Vries, Andrew Dittberner
-
Publication number: 20180376258Abstract: 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: ApplicationFiled: June 23, 2017Publication date: December 27, 2018Applicant: GN Hearing A/SInventors: Andreas TIEFENAU, Jonathan BOLEY, Changxue MA
-
Publication number: 20180288535Abstract: 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: ApplicationFiled: January 25, 2018Publication date: October 4, 2018Applicant: GN HEARING A/SInventors: Rob DE VRIES, Changxue MA, Andrew DITTBERNER
-
Publication number: 20180184214Abstract: 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: ApplicationFiled: December 23, 2016Publication date: June 28, 2018Applicant: GN Hearing A/SInventors: Rob DE VRIES, Changxue MA, Andrew DITTBERNER
-
Patent number: 9386373Abstract: 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: GrantFiled: June 20, 2013Date of Patent: July 5, 2016Assignee: DTS, INC.Inventors: Changxue Ma, Guangji Shi, Jean-Marc Jot
-
Patent number: 9081868Abstract: 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: GrantFiled: December 16, 2009Date of Patent: July 14, 2015Assignee: GOOGLE TECHNOLOGY HOLDINGS LLCInventors: Fan Zhang, Yan-Ming Cheng, Changxue Ma, James R. Talley
-
Patent number: 9031843Abstract: 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: GrantFiled: September 28, 2007Date of Patent: May 12, 2015Assignee: Google Technology Holdings LLCInventors: Changxue Ma, Harry M. Bliss
-
Publication number: 20150033187Abstract: 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: ApplicationFiled: October 13, 2014Publication date: January 29, 2015Inventors: Shuang Xu, Changxue Ma
-
Patent number: 8914289Abstract: 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: GrantFiled: December 16, 2009Date of Patent: December 16, 2014Assignee: Symbol Technologies, Inc.Inventors: Changxue Ma, Yan-Ming Cheng
-
Publication number: 20140358903Abstract: 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: ApplicationFiled: August 20, 2014Publication date: December 4, 2014Inventors: Yan Ming Cheng, Changxue Ma, Theodore Mazurkiewicz
-
Publication number: 20140037094Abstract: 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: ApplicationFiled: June 20, 2013Publication date: February 6, 2014Inventors: Changxue Ma, Guangji Shi, Jean-Marc Jot
-
Patent number: 8442823Abstract: 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: GrantFiled: October 19, 2010Date of Patent: May 14, 2013Assignee: Motorola Solutions, Inc.Inventors: Woojay Jeon, Yan-Ming Cheng, Changxue Ma, Dusan Macho