Patents by Inventor Sujit JOS
Sujit JOS 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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Publication number: 20210338115Abstract: A method for obtaining blood glucose concentration using near infrared spectroscopy (NIR) data is provided. The method includes obtaining, by an independent component analysis (ICA) temporal module, orthogonal pure spectra from human NIR spectra; performing, by a processing module, one or more preprocessings and drift removal on the human NIR spectra and the orthogonal pure spectra to obtain preprocessed spectra; and obtaining, by a regression block, the blood glucose concentration from the preprocessed spectra.Type: ApplicationFiled: November 7, 2018Publication date: November 4, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Gorish AGGARWAL, Kiran BYNAM, Sujit JOS, So Young LEE
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Publication number: 20210302310Abstract: A method of transforming Monte Carlo (MC) simulations for diffuse reflectance spectroscopy (DRS) may include obtaining, by a DRS device, MC simulated DRS measurements using a pre-defined number of photons; pre-processing, by the DRS device, the MC simulated DRS measurements to obtain normalized DRS measurements; correcting, by the DRS device, non-monotonicity of the normalized DRS measurements to obtain monotonic DRS measurements; converting, by the DRS device, the monotonic DRS measurements to a logarithmic domain to obtain logarithmic DRS measurements; performing, by the DRS device, curve fitting on the logarithmic DRS measurements in the logarithmic domain to obtain curve-fitted logarithmic DRS measurements; and transforming, by the DRS device, the curve-fitted logarithmic DRS measurements to a non-logarithmic domain to obtain transformed MC simulated DRS measurements.Type: ApplicationFiled: February 26, 2021Publication date: September 30, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sreejith KALLUMMIL, Sujit JOS, Ibrahim A., Ka Ram CHOI, Sang Kyu KIM
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Publication number: 20210247304Abstract: A method of predicting a blood compound concentration of a target may include receiving, by a system, spectral data associated with a region of the target, using near-infrared (NIR) spectroscopy. The method may include classifying, by the system, each of the plurality of data instances of the spectral data to one of a plurality of labelled classes. The method may include obtaining, by the system, one or more best fit models from a plurality of prediction models based on the classification. The method may include determining, by the system, blood compound concentration values corresponding to each of the one or more best fit models. The method may include predicting, by the system, the blood compound concentration of the target using the blood compound concentration values predicted using the best fit models.Type: ApplicationFiled: February 1, 2021Publication date: August 12, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sujit JOS, Kiran BYNAM, Ibrahim A, Rahul ARORA, Gorish AGGARWAL, So Young LEE
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Publication number: 20200323493Abstract: The present disclosure relates to a method and system for processing a photoplethysmogram (PPG) signal to improve accuracy of measurement of physiological parameters of a subject. The method may include removing a baseline drift from the PPG signal; obtaining a drift removed signal; filtering the drift removed signal; obtaining a filtered signal; performing motion artifact correction on the filtered signal; and obtaining a corrected signal.Type: ApplicationFiled: March 24, 2020Publication date: October 15, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Rahul ARORA, Sujit JOS, Ibrahim ABDUL MAJEED, Ka Ram CHOI, Sang Kon BAE
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Publication number: 20200237312Abstract: A method and apparatus for pre-processing a photoplethysmogram (PPG) signal include receiving, by an apparatus, the PPG signal including a plurality of pulses, obtaining, by the apparatus, a smoothed PPG signal based on smoothing the PPG signal using a moving average filter, obtaining, by the apparatus, a drift removed PPG signal based on removing drift from the smoothed PPG signal using a fitted polynomial function, and obtaining, by the apparatus, a rectified PPG signal based on correcting a motion artifact of the drift removed PPG signal by replacing each of the plurality of pulses using a combination of a global signal pulse and a corresponding local signal pulse.Type: ApplicationFiled: January 22, 2020Publication date: July 30, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ibrahim ABDUL MAJEED, Sujit JOS, Rahul ARORA, Ka Ram CHOI, Sang Kon BAE
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Publication number: 20200067846Abstract: A method to detect a packet includes: receiving an input sequence including preambles; detecting a transition from a noise period to a signal period in the input sequence; dynamically adjusting a gain of the input sequence in response to the signal period being initiated; and distinguishing an intended packet from other packets, among packets received in the preambles.Type: ApplicationFiled: October 29, 2019Publication date: February 27, 2020Applicant: Samsung Electronics Co., Ltd.Inventors: Ashutosh Deepak GORE, Sujit JOS, Jinesh P. NAIR, Chang Soon PARK, Kiran BYNAM, Young Jun HONG
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Publication number: 20190334744Abstract: A method and a transmitter for transmitting a pay load sequence are provided. The transmitter includes a ternary sequence mapper configured to map a binary data sequence to a ternary sequence stored in the transmitter, and a pulse shaping filter configured to generate a first signal based on the mapped ternary sequence. The ternary sequence includes elements of ?1, 0, and 1.Type: ApplicationFiled: July 8, 2019Publication date: October 31, 2019Applicant: Samsung Electronics Co., Ltd.Inventors: Chang Soon PARK, Young Jun HONG, Sujit JOS, Young Soo KIM, Chandrashekhar Thejaswi PS, Kiran BYNAM, Manoj CHOUDHARY
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Publication number: 20190159703Abstract: A method for obtaining blood glucose concentration using near infrared spectroscopy (NIR) data is provided. The method includes obtaining, by an independent component analysis (ICA) temporal module, orthogonal pure spectra from human NIR spectra; performing, by a processing module, one or more preprocessings and drift removal on the human NIR spectra and the orthogonal pure spectra to obtain preprocessed spectra; and obtaining, by a regression block, the blood glucose concentration from the preprocessed spectra.Type: ApplicationFiled: November 7, 2018Publication date: May 30, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Gorish AGGARWAL, Kiran BYNAM, Sujit JOS, So Young LEE
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Publication number: 20190140868Abstract: The present invention describes a method and system for simultaneous transmission of data to coherent and non-coherent receivers. The method at the transmitter includes retrieving a base ternary sequence having a pre-defined length, obtaining one or more ternary sequences corresponding to data to be transmitted and transmitting the obtained one or more ternary sequences by the transmitter. The method steps at the receiver includes receiving one or more ternary sequences corresponding to the data transmitted, demodulating each of the received ternary sequences by correlating with all cyclic shifts of the base ternary sequence by the receiver if the receiver is a coherent receiver, demodulating each of the received ternary sequences by correlating with all cyclic shifts of the absolute of the base ternary sequence by the receiver if the receiver is a non-coherent receiver and detecting the transmitted data based on the cyclic shifts corresponding to maximum correlation values.Type: ApplicationFiled: December 28, 2018Publication date: May 9, 2019Applicant: Samsung Electronics Co., Ltd.Inventors: Sujit JOS, Chandrashekhar Thejaswi PS, Kiran BYNAM, Young Jun HONG, Chang Soon PARK, Manoj CHOUDHARY
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Publication number: 20180331874Abstract: A method and apparatus estimating carrier frequency offset (CFO) with timing synchronization are provided. The apparatus includes processor that receives analog-to-digital converter (ADC) samples, determines a coarse angle from the received ADC samples, obtains an improved coarse angle by altering the coarse angle based on a preamble duration, determines a base CFO estimate from the improved coarse angle and determines a plurality of candidate CFOs based on the base CFO estimate and a difference frequency.Type: ApplicationFiled: January 22, 2018Publication date: November 15, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: SUJIT JOS, KIRAN BYNAM, CHANG SOON PARK, JINESH PARAMESHWARAN NAIR, CHANDRASHEKHAR THEJASWI PATTAGUPPE SURYANARAYAN BHAT, YOUNG JUN HONG, YOUNG SOO KIM
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Publication number: 20180317817Abstract: A method for predicting a blood glucose level using a near-Infrared (NIR) spectrometer is provided. The method may include obtaining a feature set from an NIR glucose spectra; and predicting glucose values from the feature set based on a binary classification of the NIR glucose spectra and an in-class prediction of glucose using Machine Learning Regression.Type: ApplicationFiled: May 3, 2018Publication date: November 8, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sujit JOS, Kiran BYNAM, So Young LEE, Gorish AGGARWAL, Srikanth Mallavarapu RAMA
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Publication number: 20180271448Abstract: A method of extracting glucose feature, a method for monitoring glucose using near-infrared (NIR) spectroscopy and a glucose monitoring device are provided. The method comprising: removing noise from a near-infrared (NIR) data; extracting a glucose signal from the NIR data; and removing temporal drift components from the extracted glucose signal.Type: ApplicationFiled: March 27, 2018Publication date: September 27, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kiran BYNAM, So Young LEE, Sujit JOS, Gorish AGGARWAL, Srikanth Mallavarapu RAMA
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Publication number: 20180254929Abstract: A method and a transmitter for transmitting a pay load sequence are provided. The transmitter includes a ternary sequence mapper configured to map a binary data sequence to a ternary sequence stored in the transmitter, and a pulse shaping filter configured to generate a first signal based on the mapped ternary sequence.Type: ApplicationFiled: May 4, 2018Publication date: September 6, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Soon PARK, Young Jun HONG, Sujit JOS, Young Soo KIM, Chandrashekhar Thejaswi PS, Kiran BYNAM, Manoj CHOUDHARY
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Publication number: 20180159705Abstract: The present invention describes a method and system for simultaneous transmission of data to coherent and non-coherent receivers. The method at the transmitter includes retrieving a base ternary sequence having a pre-defined length, obtaining one or more ternary sequences corresponding to data to be transmitted and transmitting the obtained one or more ternary sequences by the transmitter. The method steps at the receiver includes receiving one or more ternary sequences corresponding to the data transmitted, demodulating each of the received ternary sequences by correlating with all cyclic shifts of the base ternary sequence by the receiver if the receiver is a coherent receiver, demodulating each of the received ternary sequences by correlating with all cyclic shifts of the absolute of the base ternary sequence by the receiver if the receiver is a non-coherent receiver and detecting the transmitted data based on the cyclic shifts corresponding to maximum correlation values.Type: ApplicationFiled: February 5, 2018Publication date: June 7, 2018Applicant: Samsung Electronics Co., Ltd.Inventors: Sujit JOS, Chandrashekhar Thejaswi PS, Kiran BYNAM, Young Jun HONG, Chang Soon PARK, Manoj CHOUDHARY
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Publication number: 20180048583Abstract: Disclosed is a method and system to transmit independent data by at least two transmitters to corresponding at least two receivers. The method includes obtaining, at a first transmitter, a first ternary sequence from a first base ternary sequence corresponding to a first set of data-symbols, and obtaining, at a second transmitter, a second ternary sequence from a second base ternary sequence corresponding to a second set of data-symbols. The method also includes transmitting, from the first transmitter, the first ternary sequence to a first set of receivers associated with the first transmitter. The method transmits, from the second transmitter, the second ternary sequence to a second set of receivers associated with the second transmitter.Type: ApplicationFiled: October 13, 2016Publication date: February 15, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sujit JOS, Chandrashekhar Thejaswi PS, Chang Soon PARK, Kiran BYNAM, Young Jun HONG
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Publication number: 20170324602Abstract: A method to compensate a carrier frequency offset (CFO) in a receiver is disclosed. The method includes receiving discrete time samples, obtaining a sample vector from the received discrete time samples, obtaining tentative CFO estimates based on the sample vector, selecting a CFO having a greatest compensation coefficient from the tentative CFO estimates, and compensating the CFO in the received discrete time samples.Type: ApplicationFiled: April 14, 2017Publication date: November 9, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sujit JOS, Kiran BYNAM, Jinesh P NAIR, Ashutosh Deepak GORE, Chandrashekhar Thejaswi PS, Chang Soon PARK, Young Jun HONG, Youngsoo KIM
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Publication number: 20170230145Abstract: Disclosed is a method and apparatus to detect an intended packet by a sliding intermediate frequency (SIF) coherent ultra low power (ULP) wireless receiver. The method includes detecting a transition from a noise period to a signal period in a pair of input sequences received, dynamically adjusting a gain of the pair of input sequences in response to the signal period being initiated, distinguishing an intended packet from packets received in preambles included in the pair of input sequences, and compensating for a carrier frequency offset of the intended packet in the signal period.Type: ApplicationFiled: February 3, 2017Publication date: August 10, 2017Applicant: Samsung Electronics Co., Ltd.Inventors: Ashutosh Deepak GORE, Sujit JOS, Jinesh P. NAIR, Chang Soon PARK, Kiran BYNAM, Young Jun HONG
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Publication number: 20170214628Abstract: A method to detect a packet includes: receiving an input sequence including preambles; detecting a transition from a noise period to a signal period in the input sequence; dynamically adjusting a gain of the input sequence in response to the signal period being initiated; and distinguishing an intended packet from other packets, among packets received in the preambles.Type: ApplicationFiled: January 23, 2017Publication date: July 27, 2017Applicant: Samsung Electronics Co., Ltd.Inventors: Ashutosh Deepak GORE, Sujit JOS, Jinesh P. NAIR, Chang Soon PARK, Kiran BYNAM, Young Jun HONG
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Publication number: 20170063579Abstract: The present invention relates to a method and a device for transmitting a pay load sequence, and provides in one embodiment a transmitter comprising a first signal converter for converting a ternary payload sequence composed of elements ?1, 0, or 1 into a first signal, wherein the first signal converter comprises: a ternary sequence mapper for generating the ternary payload sequence by mapping a pre-designed sequence into a binary data sequence; and a converter for converting the ternary payload sequence into the first signal.Type: ApplicationFiled: October 29, 2014Publication date: March 2, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Soon PARK, Young Jun HONG, Sujit JOS, Young Soo KIM, Chandrashekhar Thejaswi PS, Kiran BYNAM, Manoj CHOUDHARY
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Publication number: 20170012766Abstract: A method of performing synchronization in a super regenerative receiver (SRR) includes setting a quench rate of the SRR to a value of 1.5 times a chip rate of an incoming signal, acquiring an expected preamble sequence of an arbitrary sample set among a plurality of possible sample sets, acquiring an expected start frame delimiter (SFD) sequence for all of the possible sample sets to achieve frame synchronization, computing respective correlation metrics for bits of the expected SFD sequence while the expected SFD sequence is acquired for all of the possible sample sets, calculating a decision metric based on the correlation metrics in response to an SFD sequence being detected for one or more of the possible sample sets, and identifying a best sample set for demodulating the incoming signal among all of the possible sample sets based on the decision metric to achieve pulse synchronization.Type: ApplicationFiled: July 7, 2016Publication date: January 12, 2017Applicant: Samsung Electronics Co., Ltd.Inventors: Kiran BYNAM, Sujit JOS, PS Chandrashekhar THEJASWI, ChangSoon PARK, Jinesh P. NAIR, Young-Jun HONG, Youngsoo KIM, Manoj CHOUDHARY