Patents by Inventor Lorin Paul Netsch
Lorin Paul Netsch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11825279Abstract: 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.Type: GrantFiled: March 9, 2021Date of Patent: November 21, 2023Assignee: Texas Instruments IncorporatedInventors: Jacek Piotr Stachurski, Lorin Paul Netsch
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Publication number: 20220335958Abstract: 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.Type: ApplicationFiled: July 1, 2022Publication date: October 20, 2022Inventors: Lorin Paul NETSCH, Jacek Piotr STACHURSKI
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Patent number: 11380335Abstract: 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.Type: GrantFiled: November 21, 2019Date of Patent: July 5, 2022Assignee: Texas Instruments IncorporatedInventors: Lorin Paul Netsch, Jacek Piotr Stachurski
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Publication number: 20210289294Abstract: 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.Type: ApplicationFiled: March 9, 2021Publication date: September 16, 2021Inventors: Jacek Piotr Stachurski, Lorin Paul Netsch
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Patent number: 11054913Abstract: 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.Type: GrantFiled: December 18, 2019Date of Patent: July 6, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Gregory Jan Malysa, Murtaza Ali, Dan Wang, Lorin Paul Netsch
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Patent number: 11024302Abstract: 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.Type: GrantFiled: September 15, 2017Date of Patent: June 1, 2021Assignee: Texas Instruments IncorporatedInventors: Tarkesh Pande, Lorin Paul Netsch, David Patrick Magee
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Patent number: 11011155Abstract: 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.Type: GrantFiled: August 1, 2018Date of Patent: May 18, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Tarkesh Pande, Lorin Paul Netsch, David Patrick Magee
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Patent number: 10972837Abstract: 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.Type: GrantFiled: August 10, 2020Date of Patent: April 6, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Jacek Piotr Stachurski, Lorin Paul Netsch
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Patent number: 10939201Abstract: 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.Type: GrantFiled: February 22, 2013Date of Patent: March 2, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Jacek Piotr Stachurski, Lorin Paul Netsch
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Publication number: 20200374628Abstract: 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.Type: ApplicationFiled: August 10, 2020Publication date: November 26, 2020Inventors: Jacek Piotr Stachurski, Lorin Paul Netsch
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Publication number: 20200125180Abstract: 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.Type: ApplicationFiled: December 18, 2019Publication date: April 23, 2020Inventors: Gregory Jan MALYSA, Murtaza ALI, Dan WANG, Lorin Paul NETSCH
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Publication number: 20200090667Abstract: 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.Type: ApplicationFiled: November 21, 2019Publication date: March 19, 2020Inventors: Lorin Paul Netsch, Jacek Piotr Stachurski
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Patent number: 10514770Abstract: 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.Type: GrantFiled: June 16, 2017Date of Patent: December 24, 2019Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Gregory Jan Malysa, Murtaza Ali, Dan Wang, Lorin Paul Netsch
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Patent number: 10510351Abstract: 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.Type: GrantFiled: February 8, 2016Date of Patent: December 17, 2019Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Lorin Paul Netsch, Jacek Piotr Stachurski
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Publication number: 20190043478Abstract: 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.Type: ApplicationFiled: August 1, 2018Publication date: February 7, 2019Inventors: Tarkesh PANDE, Lorin Paul NETSCH, David Patrick MAGEE
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Publication number: 20180268815Abstract: 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.Type: ApplicationFiled: September 15, 2017Publication date: September 20, 2018Inventors: Tarkesh Pande, Lorin Paul Netsch, David Patrick Magee
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Publication number: 20170364160Abstract: 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.Type: ApplicationFiled: June 16, 2017Publication date: December 21, 2017Inventors: Gregory Jan Malysa, Murtaza Ali, Dan Wang, Lorin Paul Netsch
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Publication number: 20160155449Abstract: 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.Type: ApplicationFiled: February 8, 2016Publication date: June 2, 2016Inventors: Lorin Paul Netsch, Jacek Piotr Stachurski
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Patent number: 9257126Abstract: 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.Type: GrantFiled: March 6, 2014Date of Patent: February 9, 2016Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Lorin Paul Netsch, Jacek Piotr Stachurski
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Patent number: 9245529Abstract: A method of encoding samples in a digital signal is provided that includes receiving a plurality of samples of the digital signal, and encoding the plurality of samples, wherein an output number of bits is adapted for coding efficiency when a value in a range of possible distinct data values of the plurality of samples is not found in the plurality of samples.Type: GrantFiled: June 18, 2010Date of Patent: January 26, 2016Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Jacek Piotr Stachurski, Lorin Paul Netsch