Patents by Inventor Yelei LI

Yelei LI 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).

  • Patent number: 10959626
    Abstract: A user-wearable device utilizes energy harvesting technology to lengthen battery life or eliminates the need to charge the wearable device. In one embodiment, a user-wearable device combines energy harvesting technology with low power sensors and high efficiency processing methods to realize a self-charging or battery-less biometric monitoring system. The wearable biometric monitoring system provides accurate biometric measurements while enhancing user experience by extending the battery life or completely eliminating the need for the user to charge the device.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: March 30, 2021
    Inventors: Yelei Li, Matthew C. Wiggins
  • Patent number: 10849531
    Abstract: A method for detecting arrhythmia, including receiving, via at least one motion sensor, channels of raw motion signals for a user; monitoring the channels for motion activity; generating segments from the raw motion signals; determining heartbeat event locations from the generated segments; performing false alarm detection on the raw motion signals and heartbeat event locations to generated refined abnormal candidates.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: December 1, 2020
    Inventors: Yelei Li, Matthew Wiggins
  • Patent number: 10722182
    Abstract: Provided is a system for measuring biological signals of a user, which includes a sensor module configured to acquire ballistocardiogram (BCG) signals of a user via a present channel, where the present channel is at least one channel of the sensor module, a decomposition module configured to decompose the BCG signals to decomposed signals, a reconstruction module configured to reconstruct at least a portion of the decomposed signals to reconstructed signals, a processing module configured to process the reconstructed signals to at least one of a heart rate, respiration rate, phases of respiration, and blood pressure, and a display module configured to display at least one output corresponding to the at least one of the heart rate, the respiration rate, phases of respiration, and the blood pressure on a display device.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: July 28, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yelei Li, Matthew C. Wiggins
  • Publication number: 20200178818
    Abstract: As a non-limiting example, various aspects of this disclosure provide embodiments of real-time heartbeat events detection using low-power, low-noise motion sensor.
    Type: Application
    Filed: February 11, 2020
    Publication date: June 11, 2020
    Inventor: Yelei Li
  • Patent number: 10667724
    Abstract: As a non-limiting example, various aspects of this disclosure provide embodiments of continuous background heartrate and heartbeat events detection using a motion sensor during various phases of activity by a user.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: June 2, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yelei Li
  • Publication number: 20200138306
    Abstract: A method of measuring biological signals of a person including obtaining physiological signals; converting the physiological signals to an energy entropy signal, determining one or more statistical features based on the energy entropy signal, and selecting and combining two or more of the features.
    Type: Application
    Filed: November 1, 2019
    Publication date: May 7, 2020
    Inventors: Yelei Li, Xin Sui
  • Patent number: 10617311
    Abstract: As a non-limiting example, various aspects of this disclosure provide embodiments of real-time heartbeat events detection using low-power, low-noise motion sensor.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: April 14, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yelei Li
  • Patent number: 10617364
    Abstract: Provided is an electronic device to monitor a user's biological measurements, where a sensor is configured to acquire a raw signal from a user, and the electronic device determines a snoring signal from the raw signal by appropriately processing the raw signal.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: April 14, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yelei Li, Matthew C. Wiggins, Anabel M. De Proft
  • Patent number: 10478129
    Abstract: A computer-implemented method for estimating biophysiological rates using the Hilbert transform includes receiving a quasiperiodic data stream from a biophysiological sensor, and removing at least a portion of an offset from the quasiperiodic data stream to provide a smoothed data stream by filtering the quasiperiodic data stream through a bandpass filter and phase compensating the filtered quasiperiodic data stream. The method also includes transforming the smoothed data stream into an analytic data stream using a Hilbert transform approximation and calculating the time derivative of the phase angle of the analytic data stream, where the time derivative is a frequency of the quasiperiodic data stream. The method further includes providing an output data stream derived from the frequency.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: November 19, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Matthew C. Wiggins, Asif Khalak, Yelei Li
  • Publication number: 20190313947
    Abstract: A method for detecting arrhythmia, including receiving, via at least one motion sensor, channels of raw motion signals for a user; monitoring the channels for motion activity; generating segments from the raw motion signals; determining heartbeat event locations from the generated segments; performing false alarm detection on the raw motion signals and heartbeat event locations to generated refined abnormal candidates.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 17, 2019
    Inventors: Yelei LI, Matthew WIGGINS
  • Patent number: 10426411
    Abstract: Provided is an electronic device to monitor a user's biological measurements, where a sensor is configured to acquire a first signal from a user, and a diagnostic processor is configured to pre-process the first signal to generate a second signal, segment the second signal to form signal segments, determine at least one event location for each of the signal segments, match adjacent signal segments for feature alignment, and provide a third signal using results of the feature alignment.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: October 1, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yelei Li
  • Patent number: 10405803
    Abstract: A computer-implemented method for estimating a cardiovascular feature, such as heart interbeat intervals, using time-delay embedding includes receiving a quasiperiodic observational data stream from a biophysiological sensor, selecting a first delay value, and generating a first vector with a first dimensionality in a multidimensional coordinate space from the observational data stream through time-delay embedding. The method also includes selecting a first plane with a second dimensionality equal to one less than the first dimensionality and which passes through an origin of the coordinate space, identifying a plurality of crossings of the first vector through the first plane in one direction, and correlating a time value corresponding to each of the crossings. The method further includes calculating a plurality of periods between the time values corresponding to consecutive crossings, where the periods represent a stream of interbeat intervals.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: September 10, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yelei Li, Asif Khalak
  • Publication number: 20190046054
    Abstract: As a non-limiting example, various aspects of this disclosure provide embodiments of real-time heartbeat events detection using low-power, low-noise motion sensor.
    Type: Application
    Filed: October 6, 2017
    Publication date: February 14, 2019
    Inventor: Yelei Li
  • Publication number: 20190046077
    Abstract: As a non-limiting example, various aspects of this disclosure provide embodiments of continuous background heartrate and heartbeat events detection using a motion sensor during various phases of activity by a user.
    Type: Application
    Filed: October 6, 2017
    Publication date: February 14, 2019
    Inventor: Yelei Li
  • Publication number: 20190000332
    Abstract: A user-wearable device utilizes energy harvesting technology to lengthen battery life or eliminates the need to charge the wearable device. In one embodiment, a user-wearable device combines energy harvesting technology with low power sensors and high efficiency processing methods to realize a self-charging or battery-less biometric monitoring system. The wearable biometric monitoring system provides accurate biometric measurements while enhancing user experience by extending the battery life or completely eliminating the need for the user to charge the device.
    Type: Application
    Filed: February 5, 2018
    Publication date: January 3, 2019
    Inventors: Yelei Li, Matthew C. Wiggins
  • Publication number: 20180116606
    Abstract: Provided is an electronic device to monitor a user's biological measurements, where a sensor is configured to acquire a raw signal from a user, and the electronic device determines a snoring signal from the raw signal by appropriately processing the raw signal.
    Type: Application
    Filed: December 6, 2016
    Publication date: May 3, 2018
    Inventors: Yelei Li, Matthew C. Wiggins, Anabel M. De Proft
  • Publication number: 20180000426
    Abstract: Provided is an electronic device to monitor a user's biological measurements, where a sensor is configured to acquire a first signal from a user, and a diagnostic processor is configured to pre-process the first signal to generate a second signal, segment the second signal to form signal segments, determine at least one event location for each of the signal segments, match adjacent signal segments for feature alignment, and provide a third signal using results of the feature alignment.
    Type: Application
    Filed: September 13, 2016
    Publication date: January 4, 2018
    Inventor: Yelei Li
  • Publication number: 20170308666
    Abstract: Provided is a method and system for helping a user reach a health goal. Various embodiments of the disclosure disclose receiving various data that relate to the user and comparing the received data to monitored user health data to provide recommendations on steps to take to achieve the health goal. The various embodiments also determine when the user has achieved the user's desired health goal.
    Type: Application
    Filed: April 25, 2017
    Publication date: October 26, 2017
    Inventors: Euan S. Thomson, Divya Shah, Tejash Prakash Shah, Yelei Li, Alireza Aliamiri
  • Publication number: 20170273635
    Abstract: Provided is a system for measuring biological signals of a user, which includes a sensor module configured to acquire ballistocardiogram (BCG) signals of a user via a present channel, where the present channel is at least one channel of the sensor module, a decomposition module configured to decompose the BCG signals to decomposed signals, a reconstruction module configured to reconstruct at least a portion of the decomposed signals to reconstructed signals, a processing module configured to process the reconstructed signals to at least one of a heart rate, respiration rate, phases of respiration, and blood pressure, and a display module configured to display at least one output corresponding to the at least one of the heart rate, the respiration rate, phases of respiration, and the blood pressure on a display device.
    Type: Application
    Filed: May 31, 2016
    Publication date: September 28, 2017
    Inventors: Yelei Li, Matthew C. Wiggins
  • Publication number: 20160341663
    Abstract: Techniques for forming nanoribbon or bulk graphene-based SPR sensors are provided. In one aspect, a method of forming a graphene-based SPR sensor is provided which includes the steps of: depositing graphene onto a substrate, wherein the substrate comprises a dielectric layer on a conductive layer, and wherein the graphene is deposited onto the dielectric layer; and patterning the graphene into multiple, evenly spaced graphene strips, wherein each of the graphene strips has a width of from about 50 nanometers to about 5 micrometers, and ranges therebetween, and wherein the graphene strips are separated from one another by a distance of from about 5 nanometers to about 50 micrometers, and ranges therebetween. Alternatively, bulk graphene may be employed and the dielectric layer is used to form periodic regions of differing permittivity. A testing apparatus and method of analyzing a sample using the present SPR sensors are also provided.
    Type: Application
    Filed: August 1, 2016
    Publication date: November 24, 2016
    Inventors: Phaedon Avouris, Damon B. Farmer, Yelei Li, Hugen Yan