公开(公告)号：US10911881B1

公开(公告)日：2021-02-02

申请号：US16582091

申请日：2019-09-25

Applicant: Amazon Technologies, Inc.

Inventor： Savaskan Bulek ,  Tarun Pruthi ,  Ali Abdollahzadeh Milani ,  Trausti Thor Kristjansson

IPC: H04R29/00 ,  H04R3/00 ,  G10L19/008 ,  H04M1/68

Abstract: A system configured to detect a tap event on a surface of a device only using microphone audio data. For example, instead of using a physical sensor to detect the tap event, the device may detect a tap event in proximity to a microphone based on a power level difference between two or more microphones. When a power ratio exceeds a threshold, the device may detect a tap event and perform an action. For example, the device may output an alarm and use a detected tap event as an input to delay or end the alarm. In some examples, the device may detect a tap event using a plurality of microphones. Additionally or alternatively, the device may distinguish between multiple tap events based on a location of the tap event, enabling the device to perform two separate actions depending on the location.

公开(公告)号：US11302342B1

公开(公告)日：2022-04-12

申请号：US17092948

申请日：2020-11-09

Applicant: Amazon Technologies, Inc.

Inventor： Steven Sensarn ,  Savaskan Bulek ,  Pradeep Kumar Govindaraju

IPC: G06F3/01 ,  G06F3/16 ,  G10L19/002 ,  G10L21/0216 ,  H04R3/00 ,  G10L21/0232 ,  G10L19/02 ,  H04R5/04 ,  H04R3/04

Abstract: A system configured to detect a tap event on a surface of a device using microphone audio data and motion data. Instead of using a physical sensor to detect the tap event, the device detects a tap event based on a power level difference between two or more microphones. When a power ratio exceeds a threshold, the device may detect a tap event and perform an action, such as delaying or ending an alarm. To reduce false positives caused by wind or loud noises close to the microphones, the device may confirm a tap event using motion data that indicates actual movement of the device. In some examples, the device may detect the tap event using a neural network processing the microphone data and the motion data. In addition, the device may embed the motion data within the microphone data using unused bits of the microphone data.

公开(公告)号：US20210144499A1

公开(公告)日：2021-05-13

申请号：US17155145

申请日：2021-01-22

Applicant: Amazon Technologies, Inc.

Inventor： Savaskan Bulek ,  Tarun Pruthi ,  Ali Abdollahzadeh Milani ,  Trausti Thor Kristjansson

IPC: H04R29/00 ,  H04R3/00 ,  G10L19/008

Abstract: A system configured to detect a tap event on a surface of a device only using microphone audio data. For example, instead of using a physical sensor to detect the tap event, the device may detect a tap event in proximity to a microphone based on a power level difference between two or more microphones. When a power ratio exceeds a threshold, the device may detect a tap event and perform an action. For example, the device may output an alarm and use a detected tap event as an input to delay or end the alarm. In some examples, the device may detect a tap event using a plurality of microphones. Additionally or alternatively, the device may distinguish between multiple tap events based on a location of the tap event, enabling the device to perform two separate actions depending on the location.

公开(公告)号：US11785406B2

公开(公告)日：2023-10-10

申请号：US17155145

申请日：2021-01-22

Applicant: Amazon Technologies, Inc.

Inventor： Savaskan Bulek ,  Tarun Pruthi ,  Ali Abdollahzadeh Milani ,  Trausti Thor Kristjansson

IPC: H04R29/00 ,  G10L19/008 ,  H04R3/00 ,  H04M1/68

CPC classification number: H04R29/005 ,  G10L19/008 ,  H04R3/005 ,  H04R29/002 ,  H04M1/68

Abstract: A system configured to detect a tap event on a surface of a device only using microphone audio data. For example, instead of using a physical sensor to detect the tap event, the device may detect a tap event in proximity to a microphone based on a power level difference between two or more microphones. When a power ratio exceeds a threshold, the device may detect a tap event and perform an action. For example, the device may output an alarm and use a detected tap event as an input to delay or end the alarm. In some examples, the device may detect a tap event using a plurality of microphones. Additionally or alternatively, the device may distinguish between multiple tap events based on a location of the tap event, enabling the device to perform two separate actions depending on the location.

公开(公告)号：US11727926B1

公开(公告)日：2023-08-15

申请号：US17025376

申请日：2020-09-18

Applicant: Amazon Technologies, Inc.

Inventor： Yuzhou Liu ,  Savaskan Bulek ,  Ali Abdollahzadeh Milani ,  Tarun Pruthi ,  Trausti Thor Kristjansson

IPC: G10L15/20 ,  G10L15/22 ,  G10L15/16 ,  G10L25/84 ,  G10L25/90 ,  G10L21/0232 ,  G06N3/044 ,  G06N3/045

CPC classification number: G10L15/20 ,  G06N3/044 ,  G06N3/045 ,  G10L15/16 ,  G10L15/22 ,  G10L21/0232 ,  G10L25/84 ,  G10L25/90

Abstract: A computing device may receive audio data from a microphone representing audio in an environment of the device, which may correspond to an utterance and noise. A model may be trained to process the audio data to reduce noise from the audio data. The model may include an encoder that includes one or more dense layers, one or more recurrent layers, and a decoder that includes one or more dense layers.