公开(公告)号：US11308979B2

公开(公告)日：2022-04-19

申请号：US17158817

申请日：2021-01-26

申请人： STMicroelectronics, Inc. ,  STMicroelectronics International N.V.

发明人： Mahesh Chowdhary ,  Arun Kumar ,  Ghanapriya Singh ,  Rajendar Bahl

IPC分类号： H04R3/00 ,  G10L25/51 ,  G10L25/21 ,  G10L25/24 ,  H04R1/40

摘要： A method and apparatus for classifying a spatial environment as open or enclosed are provided. In the method and apparatus, one or more microphones detect ambient sound in a spatial environment and output an audio signal representative of the ambient sound. A processor determines a spatial environment impulse response (SEIR) for the audio signal and extracts one or more features of the SEIR. The processor classifies the spatial environment as open or enclosed based on the one or more features of the SEIR.

公开(公告)号：US20180096256A1

公开(公告)日：2018-04-05

申请号：US15833457

申请日：2017-12-06

申请人： STMicroelectronics International N.V. ,  STMicroelectronics, Inc.

发明人： Mahesh Chowdhary ,  Arun Kumar ,  Ghanapriya Singh ,  Kashif R. J. Meer ,  Indra Narayan Kar ,  Rajendar Bahl

IPC分类号： G06N7/00 ,  G06F17/30

CPC分类号： G06N7/005 ,  G06F16/2455 ,  H04M1/72569 ,  H04W4/02 ,  H04W4/38

摘要： An electronic device described herein includes a sensing unit having at least one sensor to acquire sensing data. An associated computing device extracts sensor specific features from the sensing data, and generates a motion activity vector, a voice activity vector, and a spatial environment vector as a function of the sensor specific features. The motion activity vector, voice activity vector, and spatial environment vector are processed to determine a base level context of the electronic device relative to its surroundings, with the base level context having aspects each based on the motion activity vector, voice activity vector, and spatial environment vector. Meta level context of the electronic device relative to its surroundings is determined as a function of the base level context, with the meta level context being at least one inference made from at least two aspects of the plurality of aspects of the base level context.

公开(公告)号：US10748075B2

公开(公告)日：2020-08-18

申请号：US15299656

申请日：2016-10-21

申请人： STMicroelectronics, Inc. ,  STMicroelectronics International N.V.

发明人： Mahesh Chowdhary ,  Arun Kumar ,  Ghanapriya Singh ,  Kashif R. J. Meer ,  Indra Narayan Kar ,  Rajendar Bahl

IPC分类号： G06F16/90 ,  H04L12/24 ,  G06Q20/06 ,  G06F16/22 ,  G06K9/00 ,  G06N7/00 ,  G06F1/3287 ,  G06F1/3296 ,  G06F1/16

摘要： Disclosed herein is a method of operating an electronic device. The method includes activating a first sensing device, and determining a first probabilistic context of the electronic device relative to its surroundings. The method includes outputting the first probabilistic context, and determining a confidence measure of the first probabilistic context. Where the confidence measure of the first probabilistic context is below a threshold, the method includes activating a second sensing device, determining a second probabilistic context of the electronic device relative to its surroundings. outputting the second probabilistic context, and determining a confidence measure of the second probabilistic context. Where the confidence measure of the second probabilistic context is above the threshold, the second sensing device is deactivated and the method returns to determining the first probabilistic context.

公开(公告)号：US20200219528A1

公开(公告)日：2020-07-09

申请号：US16696948

申请日：2019-11-26

申请人： STMicroelectronics, Inc. ,  STMicroelectronics International N.V.

发明人： Mahesh Chowdhary ,  Arun Kumar ,  Ghanapriya Singh ,  Rajendar Bahl

IPC分类号： G10L25/51 ,  G10L25/24 ,  H04R1/40 ,  H04R3/00 ,  G10L25/21

摘要： A method and apparatus for classifying a spatial environment as open or enclosed are provided. In the method and apparatus, one or more microphones detect ambient sound in a spatial environment and output an audio signal representative of the ambient sound. A processor determines a spatial environment impulse response (SEIR) for the audio signal and extracts one or more features of the SEIR. The processor classifies the spatial environment as open or enclosed based on the one or more features of the SEIR.

公开(公告)号：US10588517B2

公开(公告)日：2020-03-17

申请号：US15600057

申请日：2017-05-19

申请人： STMicroelectronics, Inc. ,  STMicroelectronics International N.V.

发明人： Mahesh Chowdhary ,  Arun Kumar ,  Ghanapriya Singh ,  Rajendar Bahl

IPC分类号： A61B5/0205 ,  A63B69/00 ,  A61B5/00 ,  A61B5/024 ,  A61B5/11 ,  G16H40/63 ,  A61B5/0245 ,  A61B5/22 ,  G16H50/20

摘要： Described herein is a method of operating an electronic device that includes collecting initial motion activity data from at least one sensor of the electronic device, and generating a initial probabilistic context of the electronic device relative to its surroundings from the initial collected motion activity data using a motion activity classifier function. The collected motion activity data is stored in a training data set, and the motion activity classifier function is updated using the training data set. The method also includes collecting subsequent motion activity data from the at least one sensor of the electronic device, and generating a subsequent probabilistic context of the electronic device relative to its surroundings from the subsequently collected motion activity data using the updated motion activity classifier function.

公开(公告)号：US20180333057A1

公开(公告)日：2018-11-22

申请号：US15600057

申请日：2017-05-19

申请人： STMicroelectronics, Inc. ,  STMicroelectronics International N.V.

发明人： Mahesh Chowdhary ,  Arun Kumar ,  Ghanapriya Singh ,  Rajendar Bahl

IPC分类号： A61B5/0205 ,  A63B69/00 ,  A61B5/00 ,  A61B5/024

CPC分类号： A61B5/0205 ,  A61B5/02438 ,  A61B5/0245 ,  A61B5/1123 ,  A61B5/222 ,  A61B5/6831 ,  A61B5/6898 ,  A61B5/7267 ,  G16H40/63 ,  G16H50/20

摘要： Described herein is a method of operating an electronic device that includes collecting initial motion activity data from at least one sensor of the electronic device, and generating a initial probabilistic context of the electronic device relative to its surroundings from the initial collected motion activity data using a motion activity classifier function. The collected motion activity data is stored in a training data set, and the motion activity classifier function is updated using the training data set. The method also includes collecting subsequent motion activity data from the at least one sensor of the electronic device, and generating a subsequent probabilistic context of the electronic device relative to its surroundings from the subsequently collected motion activity data using the updated motion activity classifier function.

公开(公告)号：US11467180B2

公开(公告)日：2022-10-11

申请号：US17207294

申请日：2021-03-19

申请人： STMICROELECTRONICS, INC. ,  STMICROELECTRONICS INTERNATIONAL N.V.

发明人： Mahesh Chowdhary ,  Arun Kumar ,  Ghanapriya Singh ,  Rajendar Bahl

IPC分类号： G06F1/16 ,  H04W4/029 ,  G06N20/10 ,  G10L21/10 ,  G06K9/62 ,  G01P15/00 ,  G01P15/18 ,  H04W4/50 ,  G06F3/0346 ,  G10L25/51 ,  G06F3/01 ,  H04M1/72454 ,  G10L25/78 ,  H04W4/38 ,  H04L67/12

摘要： A distributed computing system for artificial intelligence in autonomously appreciating a circumstance context of a smart device. Raw context data is detected by sensors associated with the smart device. The raw context data is pre-processed by the smart device and then provided to a cloud based server for further processing. At the cloud based server, various sets of feature data are obtained from the pre-processed context data. The various sets of feature data are compared with corresponding classification parameters to determine a classification of a continuous event and/or a classification of transient event, if any, which occur in the context. The determined classification of the continuous event and the transient event will be used to autonomously configure the smart device or another related smart device to fit the context.

公开(公告)号：US20190208318A1

公开(公告)日：2019-07-04

申请号：US16235947

申请日：2018-12-28

申请人： STMicroelectronics, Inc. ,  STMicroelectronics International N.V.

发明人： Mahesh Chowdhary ,  Prasanth Logaraman ,  Arun Kumar ,  Rajendar Bahl

IPC分类号： H04R3/00 ,  H04R1/40 ,  B81B7/00

CPC分类号： H04R3/005 ,  B81B7/00 ,  B81B2201/0235 ,  B81B2201/0242 ,  H04R1/406 ,  H04R2410/05

摘要： A method and apparatus for auto-directive adaptive beamforming for a microphone array using microelectromechanical systems (MEMS) sensor orientation information are provided. The microphone array captures audio and the MEMS sensor detects an orientation of the microphone array. A direction of arrival of a source signal is estimated based on the data representative of the audio. A change in an orientation of the microphone array is detected based on the orientation and the direction of arrival is compensates based on the change in the orientation of the microphone array. The apparatus pre-steers a beam of a beam pattern of the microphone array based on the compensated direction of arrival to retain the source signal in a broadside of the microphone array and performs adaptive wideband beamforming to null one or more interfering sources in the beam pattern while retaining the source signal in the broadside of the microphone array.

公开(公告)号：US20180114133A1

公开(公告)日：2018-04-26

申请号：US15299656

申请日：2016-10-21

申请人： STMicroelectronics, Inc. ,  STMicroelectronics International N.V.

发明人： Mahesh Chowdhary ,  Arun Kumar ,  Ghanapriya Singh ,  Kashif R. J. Meer ,  Indra Narayan Kar ,  Rajendar Bahl

IPC分类号： G06N7/00 ,  G06F1/32

CPC分类号： G06N7/005 ,  G06F1/163 ,  G06F1/3287 ,  G06F1/3296

摘要： Disclosed herein is a method of operating an electronic device. The method includes activating a first sensing device, and determining a first probabilistic context of the electronic device relative to its surroundings. The method includes outputting the first probabilistic context, and determining a confidence measure of the first probabilistic context. Where the confidence measure of the first probabilistic context is below a threshold, the method includes activating a second sensing device, determining a second probabilistic context of the electronic device relative to its surroundings. outputting the second probabilistic context, and determining a confidence measure of the second probabilistic context. Where the confidence measure of the second probabilistic context is above the threshold, the second sensing device is deactivated and the method returns to determining the first probabilistic context.

公开(公告)号：US20160253594A1

公开(公告)日：2016-09-01

申请号：US15074188

申请日：2016-03-18

申请人： STMicroelectronics, Inc. ,  STMicroelectronics International N.V.

发明人： Mahesh Chowdhary ,  Arun Kumar ,  Ghanapriya Singh ,  Kashif R. J. Meer ,  Indra Narayan Kar ,  Rajendar Bahl

IPC分类号： G06N7/00 ,  G06F17/30

CPC分类号： G06N7/005 ,  G06F17/30477

摘要： An electronic device described herein includes a sensing unit having at least one sensor to acquire sensing data. An associated computing device extracts sensor specific features from the sensing data, and generates a motion activity vector, a voice activity vector, and a spatial environment vector as a function of the sensor specific features. The motion activity vector, voice activity vector, and spatial environment vector are processed to determine a base level context of the electronic device relative to its surroundings, with the base level context having aspects each based on the motion activity vector, voice activity vector, and spatial environment vector. Meta level context of the electronic device relative to its surroundings is determined as a function of the base level context, with the meta level context being at least one inference made from at least two aspects of the plurality of aspects of the base level context.

摘要翻译： 本文描述的电子设备包括具有至少一个传感器以获取感测数据的感测单元。 相关联的计算设备从感测数据中提取传感器特定特征，并且作为传感器特定特征的函数产生运动活动向量，语音活动向量和空间环境向量。 处理运动活动向量，语音活动向量和空间环境向量以确定电子设备相对于其周围环境的基本级别上下文，其中基本级上下文具有各自基于运动活动向量，语音活动向量和 空间环境向量。 电子设备相对于其周围环境的元级别上下文被确定为基本级上下文的函数，其中元级上下文是从基本级上下文的多个方面中的至少两个方面进行的至少一个推断。