公开(公告)号：US20220300111A1

公开(公告)日：2022-09-22

申请号：US17693644

申请日：2022-03-14

Applicant: Analog Devices, Inc.

Inventor： Atulya YELLEPEDDI ,  Harshvardhan BHATIA ,  Jiayi JIANG ,  Reuben Harry COHN-GORDON ,  Johannes TRAA ,  Sai KULKARNI

IPC: G06F3/044

Abstract: A device for proximity detection includes multiple electrodes and an impedance sensor coupled to the electrodes. The impedance sensor may include three impedance elements and a sensing element arranged in a bridge configuration to offset an external impedance and detect changes to impedance in the environment of the device. The device further includes a proximity detector that obtains sensor measurements between multiple subsets of electrodes and analyzes the sensor measurements to determine whether an object is approaching the device.

公开(公告)号：US20250061911A1

公开(公告)日：2025-02-20

申请号：US18450784

申请日：2023-08-16

Applicant: Analog Devices, Inc.

Inventor： Johannes TRAA ,  Atulya YELLEPEDDI ,  Donald F. PORGES

IPC: G10L21/0224 ,  G10L21/0216

Abstract: Aspects of the present disclosure provided a method for voice control that includes transforming, using a short-time Fourier transform (STFT) applied to data in each window aligned across each input channel of the multichannel audio stream, the multichannel audio stream into a complex valued frequency-domain representation. For a current window, the method further includes: updating a first complex-valued covariance matrix corresponding to a slowly-adapting beamformer and forming a single-channel denoised estimate for each frequency band in the STFT; calculating a voice activity detection (VAD) estimate for each frequency band in the STFT by comparing a magnitude of the single-channel denoised estimate to a magnitude of each input channel of the multichannel audio stream; and selectively updating or refraining from updating, responsive to the VAD estimate respectively indicating a presence or an absence of speech, a second complex-valued covariance matrix corresponding to a quickly-adapting beamformer.

公开(公告)号：US20240096132A1

公开(公告)日：2024-03-21

申请号：US18519716

申请日：2023-11-27

Applicant: Analog Devices, Inc.

Inventor： Atulya YELLEPEDDI ,  Kaushal Sanghai ,  John Robert McCarty ,  Brian C. Donnelly ,  Johannes Traa ,  Nicolas Le Dortz

IPC: G06V40/16 ,  G06T7/70 ,  H04S7/00

CPC classification number: G06V40/172 ,  G06T7/70 ,  H04S7/30 ,  G06T2207/10016 ,  G06T2207/30201 ,  G06T2210/12

Abstract: Far field devices typically rely on audio only for enabling user interaction and involve only audio processing. Adding a vision-based modality can greatly improve the user interface of far field devices to make them more natural to the user. For instance, users can look at the device to interact with it rather than having to repeatedly utter a wakeword. Vision can also be used to assist audio processing, such as to improve the beamformer. For instance, vision can be used for direction of arrival estimation. Combining vision and audio can greatly enhance the user interface and performance of far field devices.

公开(公告)号：US20180081043A1

公开(公告)日：2018-03-22

申请号：US15705095

申请日：2017-09-14

Applicant: Analog Devices, Inc.

Inventor： Sefa DEMIRTAS ,  Tao YU ,  Atulya YELLEPEDDI ,  Nicolas LE DORTZ

IPC: G01S7/486 ,  H04N5/247 ,  H04N5/33 ,  H04N5/235 ,  G01S17/89 ,  G01S17/10

CPC classification number: G01S7/4868 ,  G01S7/4816 ,  G01S7/4865 ,  G01S7/487 ,  G01S17/10 ,  G01S17/89 ,  H04N5/2256 ,  H04N5/232 ,  H04N5/2352 ,  H04N5/2353 ,  H04N5/2354 ,  H04N5/247 ,  H04N5/33 ,  H04N5/332 ,  H04N13/254 ,  H04N13/271 ,  H04N13/282

Abstract: Aspects of the embodiments are directed to methods and imaging systems. The imaging systems can be configured to sense, by an light sensor of the imaging system, light received during a time period, process the light received by the light sensor, identify an available measurement period for the imaging system within the time period based on the processed light, and transmit and receive light during a corresponding measurement period in one or more subsequent time periods.

公开(公告)号：US20180081033A1

公开(公告)日：2018-03-22

申请号：US15705141

申请日：2017-09-14

Applicant: Analog Devices, Inc.

Inventor： Sefa DEMIRTAS ,  Tao YU ,  Atulya YELLEPEDDI ,  Nicolas LE DORTZ ,  Charles MATHY

IPC: G01S7/487 ,  H04N13/02 ,  H04N5/33 ,  G01S7/486 ,  G01S17/10 ,  G01S7/481

CPC classification number: G01S7/4868 ,  G01S7/4816 ,  G01S7/4865 ,  G01S7/487 ,  G01S17/10 ,  G01S17/89 ,  H04N5/2256 ,  H04N5/232 ,  H04N5/2352 ,  H04N5/2353 ,  H04N5/2354 ,  H04N5/247 ,  H04N5/33 ,  H04N5/332 ,  H04N13/254 ,  H04N13/271 ,  H04N13/282

Abstract: Aspects of the embodiments are directed to methods and imaging systems. The imaging systems can be configured to sense, by an light sensor of the imaging system, light received during a time period, process the light received by the light sensor, identify an available measurement period for the imaging system within the time period based on the processed light, and transmit and receive light during a corresponding measurement period in one or more subsequent time periods.

公开(公告)号：US20200302159A1

公开(公告)日：2020-09-24

申请号：US16898721

申请日：2020-06-11

Applicant: Analog Devices, Inc.

Inventor： Atulya YELLEPEDDI ,  Kaushal SANGHAI ,  John Robert McCARTY ,  Brian C. DONNELLY ,  Nicolas Le DORTZ ,  Johannes TRAA

IPC: G06K9/00 ,  G06T7/70 ,  H04S7/00

Abstract: Far field devices typically rely on audio only for enabling user interaction and involve only audio processing. Adding a vision-based modality can greatly improve the user interface of far field devices to make them more natural to the user. For instance, users can look at the device to interact with it rather than having to repeatedly utter a wakeword. Vision can also be used to assist audio processing, such as to improve the beamformer. For instance, vision can be used for direction of arrival estimation. Combining vision and audio can greatly enhance the user interface and performance of far field devices.

公开(公告)号：US20220383868A1

公开(公告)日：2022-12-01

申请号：US17825288

申请日：2022-05-26

Applicant: Analog Devices, Inc.

Inventor： Jonathan Samuel YEDIDIA ,  Daniel SCHMIDT ,  Cristobal ALESSANDRI ,  Reuben Harry COHN-GORDON ,  Ilker BAYRAM ,  Ravi Kiran RAMAN ,  Nicholas Eastman MORAN ,  Atulya YELLEPEDDI ,  Milutin PAJOVIC ,  Sunrita PODDAR

IPC: G10L15/193 ,  G10L15/26

Abstract: It is not trivial to implement speech and natural language processing in offline embedded systems. Voice control of devices in various settings and applications can benefit from an embedded speech and natural language processing solution. One feature that helps to correct automatic speech recognition outputs is grammar projection. Another feature addresses situations where there is imperfect information or incomplete information by providing an application programming interface to enable structured queries and responses between an interpreter and an application.