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公开(公告)号：US10755697B2
公开(公告)日：2020-08-25
申请号：US16393542
申请日：2019-04-24
Inventor： Robert James Hatfield , Michael Page
IPC: G10L15/00 , G10L15/08 , G10L15/22 , G10L21/0208 , G10L15/06 , G10L15/20 , G10L15/28 , G10L21/0216 , G10L25/84
Abstract: Received data representing speech is stored, and a trigger detection block detects a presence of data representing a trigger phrase in the received data. In response, a first part of the stored data representing at least a part of the trigger phrase is supplied to an adaptive speech enhancement block, which is trained on the first part of the stored data to derive adapted parameters for the speech enhancement block. A second part of the stored data, overlapping with the first part of the stored data, is supplied to the adaptive speech enhancement block operating with said adapted parameters, to form enhanced stored data. A second trigger phrase detection block detects the presence of data representing the trigger phrase in the enhanced stored data. In response, enhanced speech data are output from the speech enhancement block for further processing, such as speech recognition.
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公开(公告)号：US11335338B2
公开(公告)日：2022-05-17
申请号：US16585167
申请日：2019-09-27
Inventor： John Paul Lesso , Robert James Hatfield
IPC: G10L15/20 , G10L15/28 , G10L15/08 , G10L17/24 , G10L21/0208
Abstract: A speech recognition system comprises: an input, for receiving an input signal from at least one microphone; a first buffer, for storing the input signal; a noise reduction block, for receiving the input signal and generating a noise reduced input signal; a speech recognition engine, for receiving either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block; and a selection circuit for directing either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block to the speech recognition engine.
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3.发明授权公开(公告)号：US10529356B2
公开(公告)日：2020-01-07
申请号：US15980491
申请日：2018-05-15
Inventor： Robert James Hatfield
Abstract: A method for determining the presence of unwanted signal components in an acoustic signal, comprises: receiving a first microphone signal derived from an acoustic signal, applying the first microphone signal to a first signal processing path having a first transfer function to provide a first output, receiving a second microphone signal derived from the acoustic signal, applying the second microphone signal to a second signal processing path having a second transfer function to provide a second output, wherein the second transfer function has a different degree of linearity from the first transfer function, and determining the presence of unwanted signal components in the acoustic signal based on a comparison of the first output and the second output.
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Patent Agency Ranking
公开(公告)号：US09779726B2
公开(公告)日：2017-10-03
申请号：US15105882
申请日：2014-12-17
Inventor： Robert James Hatfield , Michael Page
IPC: G10L15/00 , G10L15/08 , G10L15/22 , G10L21/0208 , G10L15/06 , G10L15/20 , G10L15/28 , G10L25/84 , G10L21/0216
CPC classification number: G10L15/08 , G10L15/063 , G10L15/20 , G10L15/22 , G10L15/285 , G10L21/0208 , G10L21/0216 , G10L25/84 , G10L2015/088 , G10L2021/02166
Abstract: Received data representing speech is stored, and a trigger detection block detects a presence of data representing a trigger phrase in the received data. In response, a first part of the stored data representing at least a part of the trigger phrase is supplied to an adaptive speech enhancement block, which is trained on the first part of the stored data to derive adapted parameters for the speech enhancement block. A second part of the stored data, overlapping with the first part of the stored data, is supplied to the adaptive speech enhancement block operating with said adapted parameters, to form enhanced stored data. A second trigger phrase detection block detects the presence of data representing the trigger phrase in the enhanced stored data. In response, enhanced speech data are output from the speech enhancement block for further processing, such as speech recognition.
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公开(公告)号：US10691780B2
公开(公告)日：2020-06-23
申请号：US15667849
申请日：2017-08-03
Inventor： Sunil Saunders , Robert David Rand , Robert James Hatfield , John Laurence Pennock
IPC: G06F21/32 , H04W12/06 , H04L29/06 , G06F1/3231 , G06K9/00 , G06K9/62 , G10L17/22 , G06F3/16 , G06K9/68 , G10L17/02
Abstract: An electronic device, comprising one or more input devices, for receiving biometric input from a user and generating one or more biometric input signals; an applications processor; a mixer configurable by the applications processor to provide a first signal path between one or more of the input devices and the applications processor; and a biometric authentication module coupled to the one or more input devices via a second signal path that does not include the mixer, for performing authentication of at least one of the one or more biometric input signals.
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公开(公告)号：US10319372B2
公开(公告)日：2019-06-11
申请号：US15688380
申请日：2017-08-28
Inventor： Robert James Hatfield , Michael Page
IPC: G10L15/00 , G10L15/08 , G10L15/22 , G10L21/0208 , G10L15/06 , G10L15/20 , G10L15/28 , G10L21/0216 , G10L25/84
Abstract: Received data representing speech is stored, and a trigger detection block detects a presence of data representing a trigger phrase in the received data. In response, a first part of the stored data representing at least a part of the trigger phrase is supplied to an adaptive speech enhancement block, which is trained on the first part of the stored data to derive adapted parameters for the speech enhancement block. A second part of the stored data, overlapping with the first part of the stored data, is supplied to the adaptive speech enhancement block operating with said adapted parameters, to form enhanced stored data. A second trigger phrase detection block detects the presence of data representing the trigger phrase in the enhanced stored data. In response, enhanced speech data are output from the speech enhancement block for further processing, such as speech recognition.
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公开(公告)号：US12183333B2
公开(公告)日：2024-12-31
申请号：US17549528
申请日：2021-12-13
Inventor： John Paul Lesso , Robert James Hatfield
IPC: G10L15/20 , G10L15/08 , G10L15/28 , G10L17/24 , G10L21/0208
Abstract: A speech recognition system comprises: an input, for receiving an input signal from at least one microphone; a first buffer, for storing the input signal; a noise reduction block, for receiving the input signal and generating a noise reduced input signal; a speech recognition engine, for receiving either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block; and a selection circuit for directing either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block to the speech recognition engine.
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公开(公告)号：US10431212B2
公开(公告)日：2019-10-01
申请号：US15614093
申请日：2017-06-05
Inventor： John Paul Lesso , Robert James Hatfield
Abstract: A speech recognition system comprises: an input, for receiving an input signal from at least one microphone; a first buffer, for storing the input signal; a noise reduction block, for receiving the input signal and generating a noise reduced input signal; a speech recognition engine, for receiving either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block; and a selection circuit for directing either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block to the speech recognition engine.
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