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公开(公告)号：US10514770B2
公开(公告)日：2019-12-24
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 , G01S7/41 , G01S13/34 , G01S13/58 , G06F3/03 , G06K9/00 , G06K9/62 , G01S7/35 , G06N7/00
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：US10510351B2
公开(公告)日：2019-12-17
申请号：US15018524
申请日：2016-02-08
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：US12087309B2
公开(公告)日：2024-09-10
申请号：US17856031
申请日：2022-07-01
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Lorin Paul Netsch , Jacek Piotr Stachurski
IPC: G10L19/00 , G10L19/008 , G10L19/038 , G10L19/16 , G10L19/24 , G10L21/038 , G11B20/10
CPC classification number: G10L19/0017 , G10L19/008 , G10L19/038 , G10L19/167 , G10L19/24 , G10L21/038 , G11B20/10527
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：US11825279B2
公开(公告)日：2023-11-21
申请号：US17195718
申请日：2021-03-09
Applicant: Texas Instruments Incorporated
Inventor： Jacek Piotr Stachurski , Lorin Paul Netsch
CPC classification number: H04R3/005 , H04M3/568 , 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.
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Patent Agency Ranking
公开(公告)号：US20210289294A1
公开(公告)日：2021-09-16
申请号：US17195718
申请日：2021-03-09
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：US11024302B2
公开(公告)日：2021-06-01
申请号：US15706128
申请日：2017-09-15
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Tarkesh Pande , Lorin Paul Netsch , David Patrick Magee
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：US11011155B2
公开(公告)日：2021-05-18
申请号：US16051607
申请日：2018-08-01
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Tarkesh Pande , Lorin Paul Netsch , David Patrick Magee
Abstract: An example method includes: receiving a test phrase; comparing feature vectors of the test phrase to contents of a first database to generate a first score; comparing the feature vectors of the test phrase to contents of a second database to generate a second score; comparing feature vectors of the contents of the second database to the contents of the first database to generate a third score; comparing the feature vectors of the contents of the second database to a model of the test phrase to generate a fourth score; determining a first difference score based on a difference between the first and second scores; determining a second difference score based on a difference between the third and fourth scores; and generating a difference confidence score based on a lesser of the first and second difference scores.
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公开(公告)号：US20200374628A1
公开(公告)日：2020-11-26
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：US20160155449A1
公开(公告)日：2016-06-02
申请号：US15018524
申请日：2016-02-08
Applicant: Texas Instruments Incorporated
Inventor： Lorin Paul Netsch , Jacek Piotr Stachurski
IPC: G10L19/00
CPC classification number: G10L19/0017 , G10L19/008 , G10L19/038 , G10L19/167 , G10L19/24 , G10L21/038 , G11B20/10527
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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