Patents Examined by Eric F. Winakur
  • Patent number: 11029199
    Abstract: A wearable computing device includes an electronic display with a configurable brightness level setting, a physiological metric sensor system including a light source configured to direct light into tissue of a user wearing the wearable computing device and a light detector configured to detect light from the light source that reflects back from the user. The device may further include control circuitry configured to activate the light source during a first period, generate a first light detector signal indicating a first amount of light detected by the light detector during the first period, deactivate the light source during a second period, generate a second light detector signal indicating a second amount of light detected by the light detector during the second period, generate a physiological metric based at least in part on the first light detector signal and the second light detector signal, and modify the configurable brightness level setting based on the second light detector signal.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: June 8, 2021
    Assignee: Fitbit, Inc.
    Inventors: FĂ©lix Antoine Turgeon, Sebastian Joseph Capella, Subramaniam Venkatraman, Shelten Gee Jao Yuen, Heiko Gernot Albert Panther
  • Patent number: 11020030
    Abstract: A device for non-contact measurement of blood oxygen saturation (SpO2) in a mammalian subject including a camera and one or more arrays of LEDs each having a first set of LEDs emitting near infrared (NIR), and the second set of LEDs emitting orange light located in an optical path adapted to transmit reflected light from a subject to the camera. A controller transmits a camera trigger to the camera, and is further coupled to transmit control signals to the one or more arrays of LEDs. A processor receives photoplethysmography (PPG) data signal values from the camera. The PPG data signal values are present in the reflected light and include pulsatile and non-pulsatile components. The processor determines SpO2 values from the PPG data signal values from the measured ratios of pulsatile to non-pulsatile components of the PPG signals.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: June 1, 2021
    Assignee: Arizona Board of Regents on behalf of Arizona State University
    Inventors: Nongjian Tao, Dangdang Shao
  • Patent number: 11022797
    Abstract: One embodiment is directed to a system comprising a head-mounted member removably coupleable to the user's head; one or more electromagnetic radiation emitters coupled to the head-mounted member and configured to emit light with at least two different wavelengths toward at least one of the eyes of the user; one or more electromagnetic radiation detectors coupled to the head-mounted member and configured to receive light reflected after encountering at least one blood vessel of the eye; and a controller operatively coupled to the one or more electromagnetic radiation emitters and detectors and configured to cause the one or more electromagnetic radiation emitters to emit pulses of light while also causing the one or more electromagnetic radiation detectors to detect levels of light absorption related to the emitted pulses of light, and to produce an output that is proportional to an oxygen saturation level in the blood vessel.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: June 1, 2021
    Assignee: Magic Leap, Inc.
    Inventors: Nicole Elizabeth Samec, Adrian Kaehler
  • Patent number: 11020059
    Abstract: A real-time automated method to diagnose and/or detect stroke and engage the patient, care-takers, emergency medical system and stroke neurologists in the management of this condition includes the steps of continuously measuring natural limb activity, conveying the measurements to a cloud based real-time data processing system, identifying patient specific alert conditions, and determining solutions for acting upon needs of the patient. The system by which the method is implemented includes at least one body worn sensor continuously measuring natural limb activity and a patient worn data transmission device conveying the measurements to a cloud based real-time data processing system that identifies patient specific alert conditions and determines solutions for acting upon needs of the patient.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: June 1, 2021
    Assignee: YALE UNIVERSITY
    Inventors: Kevin N. Sheth, Hitten P. Zaveri, Ronald R. Coifman
  • Patent number: 11020014
    Abstract: A photoplethysmogram device is provided comprising a light source configured to emit light to illuminate skin, a photo-detector configured to receive the light illuminating the skin and generate an electrical output as a function of an intensity of the received light, a skin temperature regulator configured to heat and/or cool a temperature of the skin adjacent to the photo-detector and light source to increase the signal-to-noise ratio (SNR) of the electrical output from the photo-detector, and a processor configured to generate, based on the electrical output, an output signal indicative of blood properties, including physiological parameters such as blood pressure, heart rate, stroke volume, cardiac output, total peripheral resistance, blood vessel elasticity, and arterial oxygen saturation.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: June 1, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Sidhant Gupta, Jonathan Bernard Lester, Jeremiah Wander, Jessica De Souza
  • Patent number: 11020019
    Abstract: An analyte monitoring system and methods for extending the life of a sensor in an analyte monitoring system. The analyte sensor may include an analyte sensor and a transceiver. The analyte sensor may include an indicator, a detector, and an amplifier. The indicator may be configured to exhibit one or more detectable properties based on an amount or concentration of an analyte in proximity to the indicator. The detector may be configured to detect one or more of the detectable properties and output an analyte signal indicative of the amount or concentration of the analyte in proximity to the indicator. The amplifier may be configured to amplify the analyte signal. The transceiver may be configured to adjust a gain of the amplifier. The transceiver may be configured to additionally or alternatively adjust a drive current of a light source of the analyte sensor.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: June 1, 2021
    Assignee: Senseonics, Incorporated
    Inventors: Andrew DeHennis, Abhi Chavan, Eitan Saba-Keren
  • Patent number: 11020027
    Abstract: An apparatus for estimating a glucose exposure may include: a spectrometer configured to measure a plurality of Raman spectra from an object; and a processor configured to extract depth-specific protein information from the plurality of Raman spectra and estimate the glucose exposure of the object based on the depth-specific protein information.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: June 1, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin Young Park, Un Jeong Kim, Yun S Park, Sung Mo Ahn
  • Patent number: 11020029
    Abstract: A sensor port is adapted to connect to either a sensor or a data source. A reader is configured to identify which of the sensor and the data source is connected to the sensor port. A data path is configured to communicate an analog signal associated with the sensor and digital data associated with the data source to a signal processor according to the identification made by the reader.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: June 1, 2021
    Assignee: Masimo Corporation
    Inventors: Ammar Al-Ali, Robert A. Smith, Rex J. McCarthy
  • Patent number: 11013412
    Abstract: A biological component measuring apparatus may include: a first light source configured to emit a first light of a first wavelength range onto an object; a second light source configured to emit a second light of a second wavelength range onto the object, the second wavelength range being different from the first wavelength range; a detector configured to detect the first light and the second light which are scattered from the object; and a processor configured to determine a scattering coefficient based on the detected first light, obtain blood vessel depth information based on the detected second light, and measure a biological component by correcting the scattering coefficient based on the blood vessel depth information.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: May 25, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kun Sun Eom, Joon Hyung Lee, Jeong Eun Hwang, Jung Yong Nam, Ki Young Chang
  • Patent number: 11013465
    Abstract: A biological feature detection apparatus and an electronic device are provided. The apparatus includes a light emitting unit and a light receiving unit. The light emitting unit is configured to emit light to a detection surface of a biological tissue, the light emitted by the light emitting unit is processed by the biological tissue and then transmitted to the light receiving unit, and the light receiving unit is configured to receive the light and perform a photoelectric conversion to generate an original electrical signal for biological feature detection; the light emitting unit and the light receiving unit are attached to the detection surface of the biological tissue. As such, the signal-to-noise ratio of the original electrical signal is improved and accuracy of biological feature detection is enhanced.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: May 25, 2021
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventors: Wangwang Yang, Zhiyao Liu, Chang Liu
  • Patent number: 11013460
    Abstract: A system for noninvasively measuring blood alcohol concentration using light includes one or more emitters each configured to emit light in the near infrared or infrared light spectrum at one or more wavelengths that respond to varied chromophore concentrations of ethanol and water in blood of a human subject. One or more detectors is configured to detect light emitted at the one or more wavelengths and output a representation of a photoplethysmography (PPG) waveform for one or more of the one or more wavelengths. A processing subsystem is coupled to the one or more emitters and the one or more detectors.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: May 25, 2021
    Assignee: Vivonics, Inc.
    Inventor: Ryan Myers
  • Patent number: 11013436
    Abstract: In some examples, a medical system includes a medical device. The medical device may include a housing configured to be implanted in a target site of a patient, a light emitter configured to emit a signal configured to cause a fluorescent marker to emit a fluoresced signal into the target site, and a light detector that may be configured to detect the fluoresced signal. The medical system may include processing circuitry configured to determine a characteristic of the fluorescent marker based on the emitted signal and the fluoresced signal. The characteristic of the fluorescent marker may be indicative of a presence of a compound in the patient, and the processing circuitry may be configured to track the presence of the compound of the patient based on the characteristic of the fluorescent marker.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: May 25, 2021
    Assignee: MEDTRONIC, INC.
    Inventors: John E. Burnes, James K. Carney, Jonathan L. Kuhn, Mark J. Phelps, Jesper Svenning Kristensen, Rodolphe Katra
  • Patent number: 11006869
    Abstract: A trans-abdominal non-invasive fetal blood oxygen saturation detection device comprises a trans-abdominal fetal oximeter and a signal detection assembly connected to the trans-abdominal fetal oximeter. The trans-abdominal oximeter comprises a signal processing controller. The signal detection assembly comprises a light-emitting light source device and a light receiving device, wherein the light-emitting light source device, the light receiving device and a reference signal detection device are all connected to the signal processing controller. The light-emitting light source device irradiates two or more different wavelengths of light into the abdominal cavity of a pregnant woman.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: May 18, 2021
    Assignee: BEIJING Weitexing Technology Co. Ltd
    Inventors: Wen Huang, Yixiang Wang
  • Patent number: 11006867
    Abstract: An embodiment of the present disclosure seeks to smooth a perfusion index measurement through use of a baseline perfusion index measurement and/or through the use of multiple PI calculations. The combination of the baseline perfusion index measurement reduces an error between a calculated measurement of PI and actual conditions.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 18, 2021
    Assignee: MASIMO CORPORATION
    Inventor: Ammar Al-Ali
  • Patent number: 11006866
    Abstract: The invention relates to a device for measuring the concentration of an analyte in the blood or tissue of a an animal or a human, particularly a premature infant, wherein for measuring said concentration the device comprises a means (30) comprising at least a first and a second permeability with respect to said analyte, wherein the first permeability for said analyte differs from the second permeability for the analyte. Further, the invention relates to a corresponding method.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: May 18, 2021
    Assignees: UNIVERSITAT ZURICH, EIDGENOSSISCHE MATERIALPRUFUNGS—UND FORSCHUNGSANSTALT
    Inventors: Lukas Baumann, Katrin Scholler, Markus Rothmaier, Lukas Scherer, Rene Rossi, Damien Paul Joseph Henri De Courten, Martin Wolf
  • Patent number: 11000189
    Abstract: Computer implemented methods, systems and devices are provided to monitor for potential heart failure (HF). Cardiac activity (CA) data is obtained and filtered to obtain respiration data indicative of a respiration pattern. The respiration data is analyzed to determine one or more respiration characteristics of interest (COI) that are recorded along with collection time information to form an HF monitoring log. Additionally or alternatively, the CA data is analyzed to detect an event of interest. The cardiac activity data is filtered to obtain respiration data indicative of a respiration pattern, and the respiration data is analyzed for respiration induced under detection of the event of interest from the CA data.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: May 11, 2021
    Assignee: PACESETTER, INC.
    Inventors: Stephanie C. Sun, Xiaoyi Min, Alan B. Vogel, Fujian Qu, Stuart Rosenberg
  • Patent number: 11001142
    Abstract: A system for non-invasively measuring an analyte in a vehicle driver and controlling a vehicle based on a measurement of the analyte. At least one solid-state light source is configured to emit different wavelengths of light. A sample device is configured to introduce the light emitted by the at least one solid-state light source into tissue of the vehicle driver. One or more optical detectors are configured to detect a portion of the light that is not absorbed by the tissue of the vehicle driver. A controller is configured to calculate a measurement of the analyte in the tissue of the vehicle driver based on the light detected by the one or more optical detectors, determine whether the measurement of the analyte in the tissue of the vehicle driver exceeds a pre-determined value, and provide a signal to a device configured to control the vehicle.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: May 11, 2021
    Assignee: Automotive Coalition For Traffic Safety, Inc.
    Inventors: Benjamin Ver Steeg, Trent Ridder, Len Cech, Joseph Kae Krause
  • Patent number: 10993644
    Abstract: A SpO2 measurement system includes at least one light transmitter configured to transmit a first wavelength light and a second wavelength light into tissue of a patient, wherein the second wavelength is shorter than the first wavelength, and a detection device that detects the first wavelength light and the second wavelength light emitted from the tissue of the patient. The SpO2 measurement system operates the at least one light transmitter in a high power mode during a first time period to determine a SpO2 value and a high power DC ratio based on the first wavelength light and the second wavelength light detected during operation in the high power mode. The SpO2 measurement operates the at least one light transmitter in a low power mode during a second time period to determine a low power DC ratio based on the first wavelength light and the second wavelength light detected during operation in the low power mode, and to determine a blood oxygenation status for the patient based on the low power DC ratio.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 4, 2021
    Assignee: General Electric Company
    Inventors: Matti Veli Tapani Huiku, Sakari Lamminmaki
  • Patent number: 10993630
    Abstract: A method of determining respiratory rate from a photoplethysmograph signal includes filtering the photoplethysmograph signal to create a filtered photoplethysmograph signal. The method also includes detecting peaks and valleys in the filtered photoplethysmograph signal to extract predetermined features from the filtered photoplethysmograph signal. The method also includes obtaining variation waveforms from the predetermined features. The method also includes removing outliers from each of variation waveforms. The method also includes interpolating for the outliers removed from each of the variation waveforms to acquire a frequency estimation of each of the variation waveforms. The method also includes determining a respiratory rate based on the frequency estimation of each of the variation waveforms. The method also includes determining a weighted average of the respiratory rate the variation waveforms to determine an estimated respiratory rate.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: May 4, 2021
    Assignee: Hill-Rom Services PTE. LTD.
    Inventors: Aye Aung, Yue Wang, Chau C. Ye, Suresha Venkataraya
  • Patent number: 10986980
    Abstract: Provided are an image processing device and a method for operating the same, and an endoscope processor device and a method for operating the same that accurately measure the blood vessel depth of blood vessels in an observation target. A data set including a plurality of items of measurement data in which blood vessel index values, such as blood vessel contrast and a plurality of blood vessel index value variation factors including the blood vessel depth are associated with each other is stored in a data set storage unit 97. A specific blood vessel index value variation factor other than the blood vessel depth is measured. The data set is narrowed to a sub-data set having the specific blood vessel index value variation factor. A blood vessel depth corresponding to a blood vessel index value calculated by the blood vessel index value calculation unit is found from the sub-data set.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: April 27, 2021
    Assignee: FUJIFILM Corporation
    Inventor: Shumpei Kamon