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公开(公告)号：US20180268815A1
公开(公告)日：2018-09-20
申请号：US15706128
申请日：2017-09-15
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Tarkesh Pande , Lorin Paul Netsch , David Patrick Magee
CPC classification number: G10L15/22 , G10L15/01 , G10L15/02 , G10L15/08 , G10L2015/025 , G10L2015/088 , G10L2015/221
Abstract: Systems and methods are provided for an automated speech recognition system. A microphone records a keyword spoken by a user, and a front end divides the recorded keyword into a plurality of subunits, each containing a segment of recorded audio, and extracts a set of features from each of the plurality of subunits. A decoder assigns one of a plurality of content classes to each of the plurality of subunits according to at least the extracted set of features for each subunit. A quality evaluation component calculates a score representing a quality of the keyword from the content classes assigned to the plurality of subunits.
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公开(公告)号：US11054913B2
公开(公告)日：2021-07-06
申请号：US16719616
申请日：2019-12-18
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Gregory Jan Malysa , Murtaza Ali , Dan Wang , Lorin Paul Netsch
IPC: G06F3/0487 , G06F3/01 , G01S13/34 , G01S13/58 , G01S7/41 , G06F3/03 , G06K9/62 , G06K9/00 , G01S7/35 , G06N7/00
Abstract: A system includes a frequency modulated continuous wave (FMCW) transceiver, a processor, and a memory. The memory stores program instructions that, when executed by the processor, cause the system to receive a signal representative of an FMCW signal reflected from an object of interest, apply a first Fourier transform to the signal to obtain range data, identify a subset of the range data corresponding to a region of interest, apply a second Fourier transform on the identified subset of the range data to obtain velocity data corresponding to the identified subset of the range data, and identify a gesture performed by the object of interest based on at least a portion of velocity data.
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公开(公告)号：US20140241549A1
公开(公告)日：2014-08-28
申请号：US13775073
申请日：2013-02-22
Applicant: Texas Instruments Incorporated
Inventor： Jacek Piotr Stachurski , Lorin Paul Netsch
IPC: H04R3/00
CPC classification number: H04R3/005 , H04M3/568 , H04M2242/30 , H04N7/15 , H04R2430/03
Abstract: A method for sound source localization in a digital system having at least two audio capture devices is provided that includes receiving audio signals from the two audio capture devices, computing a signal-to-noise ratio (SNR) for each frequency band of a plurality of frequency bands in a processing frame of the audio signals, determining a frequency band weight for each frequency band of the plurality of frequency bands based on the SNR computed for the frequency band, computing an estimated time delay of arrival (TDOA) of sound for the processing frame using the frequency band weights, and converting the estimated TDOA to an angle representing sound direction.
Abstract translation: 提供了一种用于具有至少两个音频捕获装置的数字系统中的声源定位的方法，其包括从两个音频捕获装置接收音频信号，为多个音频捕获装置的每个频带计算信噪比（SNR） 在音频信号的处理帧中的频带，基于为频带计算的SNR来确定多个频带中的每个频带的频带权重，计算用于该频带的估计的到达时间延迟（TDOA） 使用频带权重处理帧，并将估计的TDOA转换成表示声音方向的角度。
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公开(公告)号：US10972837B2
公开(公告)日：2021-04-06
申请号：US16989013
申请日：2020-08-10
Applicant: Texas Instruments Incorporated
Inventor： Jacek Piotr Stachurski , Lorin Paul Netsch
Abstract: A method for sound source localization in a digital system having at least two audio capture devices is provided that includes receiving audio signals from the two audio capture devices, computing a signal-to-noise ratio (SNR) for each frequency band of a plurality of frequency bands in a processing frame of the audio signals, determining a frequency band weight for each frequency band of the plurality of frequency bands based on the SNR computed for the frequency band, computing an estimated time delay of arrival (TDOA) of sound for the processing frame using the frequency band weights, and converting the estimated TDOA to an angle representing sound direction.
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公开(公告)号：US10939201B2
公开(公告)日：2021-03-02
申请号：US13775073
申请日：2013-02-22
Applicant: Texas Instruments Incorporated
Inventor： Jacek Piotr Stachurski , Lorin Paul Netsch
Abstract: A method for sound source localization in a digital system having at least two audio capture devices is provided that includes receiving audio signals from the two audio capture devices, computing a signal-to-noise ratio (SNR) for each frequency band of a plurality of frequency bands in a processing frame of the audio signals, determining a frequency band weight for each frequency band of the plurality of frequency bands based on the SNR computed for the frequency band, computing an estimated time delay of arrival (TDOA) of sound for the processing frame using the frequency band weights, and converting the estimated TDOA to an angle representing sound direction.
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Patent Agency Ranking
公开(公告)号：US20200090667A1
公开(公告)日：2020-03-19
申请号：US16690536
申请日：2019-11-21
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Lorin Paul Netsch , Jacek Piotr Stachurski
IPC: G10L19/00 , G10L19/24 , G10L19/16 , G11B20/10 , G10L21/038 , G10L19/008 , G10L19/038
Abstract: A method of encoding samples in a digital signal is provided that includes receiving a frame of N samples of the digital signal, determining L possible distinct data values in the N samples, determining a reference data value in the L possible distinct data values and a coding order of L−1 remaining possible distinct data values, wherein each of the L−1 remaining possible distinct data values is mapped to a position in the coding order, decomposing the N samples into L−1 coding vectors based on the coding order, wherein each coding vector identifies the locations of one of the L−1 remaining possible distinct data values in the N samples, and encoding the L−1 coding vectors.
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公开(公告)号：US20170364160A1
公开(公告)日：2017-12-21
申请号：US15624724
申请日：2017-06-16
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Gregory Jan Malysa , Murtaza Ali , Dan Wang , Lorin Paul Netsch
IPC: G06F3/01 , G06F3/0487
CPC classification number: G06F3/017 , G01S7/415 , G01S13/34 , G01S13/584 , G01S2007/356 , G06F3/01 , G06F3/03 , G06F3/0487 , G06K9/00335 , G06K9/6297 , G06N7/005
Abstract: A gesture recognition system is shown using a 77 GHz FMCW radar system. The signature of a gesturing hand is measured to construct an energy distribution in velocity space over time. A gesturing hand is fundamentally a dynamical system with unobservable “state” (i.e. the type of the gesture) which determines the sequence of associated observable velocity-energy distributions, therefore a Hidden Markov Model is used to for gesture recognition. A method for reducing the length of the feature vectors by a factor of 12 is also shown, by re-parameterizing the feature vectors in terms of a sum of Gaussians without decreasing the recognition performance.
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公开(公告)号：US09257126B2
公开(公告)日：2016-02-09
申请号：US14199187
申请日：2014-03-06
Applicant: Texas Instruments Incorporated
Inventor： Lorin Paul Netsch , Jacek Piotr Stachurski
CPC classification number: G10L19/0017
Abstract: A method of encoding samples in a digital signal is provided that includes receiving a frame of N samples of the digital signal, determining L possible distinct data values in the N samples, determining a reference data value in the L possible distinct data values and a coding order of L−1 remaining possible distinct data values, wherein each of the L−1 remaining possible distinct data values is mapped to a position in the coding order, decomposing the N samples into L−1 coding vectors based on the coding order, wherein each coding vector identifies the locations of one of the L−1 remaining possible distinct data values in the N samples, and encoding the L−1 coding vectors.
Abstract translation: 提供了一种对数字信号中的样本进行编码的方法，包括：接收数字信号的N个样本的帧，确定L个采样中的可能的不同数据值，确定L个可能的不同数据值中的参考数据值，以及编码 L-1剩余可能的不同数据值的顺序，其中L-1个剩余的可能的不同数据值中的每一个被映射到编码顺序的位置，基于编码顺序将N个样本分解成L-1个编码矢量，其中 每个编码矢量标识N个样本中的L-1个剩余可能不同数据值中的一个的位置，并编码L-1编码矢量。
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公开(公告)号：US20140188490A1
公开(公告)日：2014-07-03
申请号：US14199187
申请日：2014-03-06
Applicant: Texas Instruments Incorporated
Inventor： Lorin Paul Netsch , Jacek Piotr Stachurski
IPC: G10L19/00
CPC classification number: G10L19/0017
Abstract: A method of encoding samples in a digital signal is provided that includes receiving a frame of N samples of the digital signal, determining L possible distinct data values in the N samples, determining a reference data value in the L possible distinct data values and a coding order of L−1 remaining possible distinct data values, wherein each of the L−1 remaining possible distinct data values is mapped to a position in the coding order, decomposing the N samples into L−1 coding vectors based on the coding order, wherein each coding vector identifies the locations of one of the L−1 remaining possible distinct data values in the N samples, and encoding the L−1 coding vectors.
Abstract translation: 提供了一种对数字信号中的样本进行编码的方法，包括：接收数字信号的N个样本的帧，确定L个采样中的可能的不同数据值，确定L个可能的不同数据值中的参考数据值，以及编码 L-1剩余可能的不同数据值的顺序，其中L-1个剩余的可能的不同数据值中的每一个被映射到编码顺序的位置，基于编码顺序将N个样本分解成L-1个编码矢量，其中 每个编码矢量标识N个样本中的L-1个剩余可能不同数据值中的一个的位置，并编码L-1编码矢量。
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公开(公告)号：US11380335B2
公开(公告)日：2022-07-05
申请号：US16690536
申请日：2019-11-21
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Lorin Paul Netsch , Jacek Piotr Stachurski
IPC: G10L19/00 , G10L19/24 , G10L19/16 , G11B20/10 , G10L21/038 , G10L19/008 , G10L19/038
Abstract: A method of encoding samples in a digital signal is provided that includes receiving a frame of N samples of the digital signal, determining L possible distinct data values in the N samples, determining a reference data value in the L possible distinct data values and a coding order of L−1 remaining possible distinct data values, wherein each of the L−1 remaining possible distinct data values is mapped to a position in the coding order, decomposing the N samples into L−1 coding vectors based on the coding order, wherein each coding vector identifies the locations of one of the L−1 remaining possible distinct data values in the N samples, and encoding the L−1 coding vectors.
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