Patents by Inventor Foroohar Foroozan

Foroohar Foroozan 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).

  • Publication number: 20240315570
    Abstract: A respiration rate prediction system and method can include: emitting light into tissue with a light emitter; detecting the light from the tissue with a photodetector as a hemodynamic signal; determining a respiration rate estimate and a signal condition feature from the hemodynamic signal; determining a signal quality indicator from the signal condition feature; deciding whether to determine a respiration rate prediction with a machine learning algorithm based on the signal quality indicator; determining the respiration rate prediction and a confidence score for the respiration rate prediction, the confidence score based on the respiration rate estimate and the signal condition feature being inputs into the machine learning algorithm; and outputting the respiration rate prediction from the machine learning algorithm based on the confidence score.
    Type: Application
    Filed: March 20, 2023
    Publication date: September 26, 2024
    Applicant: Analog Devices, Inc.
    Inventors: Jing Liu, Foroohar Foroozan
  • Patent number: 12042256
    Abstract: One embodiment is a method comprising collecting photoplethysmography (“PPG”) data associated with a user using a biometric monitoring device; extracting a signal quality metric (“SQM”) from the collected PPG data; classifying the PPG data signal based on the extracted SQM into one of a plurality of signal quality levels; and determining based on the classification whether to increase, decrease, or maintain a power level of an LED of the biometric monitoring device.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: July 23, 2024
    Assignee: Analog Devices International Unlimited Company
    Inventors: Foroohar Foroozan, Di Xue, Wei Ken Fang, Giuseppe Scelsi, Yih Yi Wu
  • Publication number: 20220370015
    Abstract: Accuracy of vital signs monitoring systems depend on the quality of the measurements by the sensors. Crude techniques are applied to discard measurements which have a low signal-to-noise ratio or are saturated. A more accurate and flexible technique enables more measurements to be kept, more meaningful signal quality information to be extracted, more accurate vital signs extraction and more systems to readily embed signal quality assessment in the signal processing pipeline. Improvements include preprocessing of the signal that is independent of variations of underlying hardware, use of features with low computational complexity and high predictive power, cross-channel feature extraction, application of a trained machine learning model, and flexible translation of signal quality classification information into a continuous metric for signal quality.
    Type: Application
    Filed: May 9, 2022
    Publication date: November 24, 2022
    Applicant: Analog Devices, Inc.
    Inventors: Miles BENNETT, Foroohar FOROOZAN, Di XUE
  • Patent number: 11462054
    Abstract: Embodiments of the present disclosure describe mechanisms for a radar-based indoor localization and tracking system. One example can include monitoring unit that includes a radar source, a camera unit, and one or more processors coupled to the radar element and the camera unit. The monitoring unit is configured to generate point cloud data associated with an object; execute Point Cloud Library (PCL) preprocessing based, at least, on the point cloud data; execute Density-Based Spatial Clustering of Applications with Noise (DBSCAN) clustering; execute multi-object tracking on the object; and execute an image PCL overlay based on the point cloud data to generate real-time data associated with the object.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: October 4, 2022
    Assignee: ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANY
    Inventors: Foroohar Foroozan, Wassim Rafrafi
  • Publication number: 20220304590
    Abstract: System and apparatus for pulse oximetry. Systems, methods, and devices are presented for placement of the hardware on a body part where detracting signals are strong. In one example, detracting signals include signals from respiration. In various examples, the body part the oximeter is placed on is a wrist, chest, or arm. A computationally efficient pipeline is presented that allows for reliable and robust SpO2 estimation.
    Type: Application
    Filed: March 28, 2022
    Publication date: September 29, 2022
    Applicant: Analog Devices, Inc.
    Inventors: Charles MATHY, Sunrita PODDAR, Di XUE, Miles BENNETT, Foroohar FOROOZAN, Edward Joseph DANYLIW, Neal Tait KURFISS
  • Publication number: 20210117659
    Abstract: Embodiments of the present disclosure describe mechanisms for a radar-based indoor localization and tracking system. One example can include monitoring unit that includes a radar source, a camera unit, and one or more processors coupled to the radar element and the camera unit. The monitoring unit is configured to generate point cloud data associated with an object; execute Point Cloud Library (PCL) preprocessing based, at least, on the point cloud data; execute Density-Based Spatial Clustering of Applications with Noise (DBSCAN) clustering; execute multi-object tracking on the object; and execute an image PCL overlay based on the point cloud data to generate real-time data associated with the object.
    Type: Application
    Filed: October 21, 2020
    Publication date: April 22, 2021
    Applicant: Analog Devices International Unlimited Company
    Inventors: Foroohar FOROOZAN, Wassim RAFRAFI
  • Publication number: 20200337574
    Abstract: One embodiment is a method comprising collecting photoplethysmography (“PPG”) data associated with a user using a biometric monitoring device; extracting a signal quality metric (“SQM”) from the collected PPG data; classifying the PPG data signal based on the extracted SQM into one of a plurality of signal quality levels; and determining based on the classification whether to increase, decrease, or maintain a power level of an LED of the biometric monitoring device.
    Type: Application
    Filed: April 20, 2020
    Publication date: October 29, 2020
    Applicant: Analog Devices International Unlimited Company
    Inventors: Foroohar FOROOZAN, Di XUE, Wei Ken FANG, Giuseppe SCELSI, Yih Yi WU
  • Patent number: 10258314
    Abstract: Systems and methods for ultrasound imaging capable of achieving spatial resolutions that can resolve objects smaller than 300 ?m are described. Ultrasound is transmitted to and steered over a volume-of-interest that contains a microbubble contrast agent to individually excite microbubbles. Signal data is acquired in response to the transmitted ultrasound, and a plurality of images are reconstructed by beamforming the acquired signal data. The spatial resolution of the beamformed images can be further increased using techniques that determine the position of the microbubble within each image to a greater level of accuracy than the point spread function (“PSF”) of the ultrasound system. The images can also be combined to produce a single high resolution image of the volume-of-interest using, for instance, a maximum pixel projection technique.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: April 16, 2019
    Assignee: SUNNYBROOK RESEARCH INSTITUTE
    Inventors: Kullervo Hynynen, Meaghan O'Reilly, Foroohar Foroozan
  • Publication number: 20170367684
    Abstract: Systems and methods for medical imaging, specifically ultrasound imaging capable of achieving spatial resolutions that can resolve point objects smaller than 100 ?m irrespective of them to be well-resolved, using the principles of compressive sensing and sparse recovery are described. Ultrasound system uses the transmit transducers sequentially to sonicate the medium and the data is acquired over the receive transducers. The acquired signals are then sampled by the low-dimensional acquisition system. The signals are recovered using an optimization method before a frequency domain beamforming technique is applied. The time reversal focused frequency matrix is formed to focus the energy of different frequency bands into a single frequency.
    Type: Application
    Filed: January 5, 2016
    Publication date: December 28, 2017
    Inventor: Foroohar FOROOZAN
  • Publication number: 20160106395
    Abstract: Systems and methods for ultrasound imaging capable of achieving spatial resolutions that can resolve objects smaller than 300 ?m are described. Ultrasound is transmitted to and steered over a volume-of-interest that contains a microbubble contrast agent to individually excite microbubbles. Signal data is acquired in response to the transmitted ultrasound, and a plurality of images are reconstructed by beamforming the acquired signal data. The spatial resolution of the beamformed images can be further increased using techniques that determine the position of the microbubble within each image to a greater level of accuracy than the point spread function (“PSF”) of the ultrasound system. The images can also be combined to produce a single high resolution image of the volume-of-interest using, for instance, a maximum pixel projection technique.
    Type: Application
    Filed: May 2, 2014
    Publication date: April 21, 2016
    Applicant: SUNNYBROOK HEALTH SCIENCES CENTER
    Inventors: Kullervo Hynynen, Meaghan O'Reilly, Foroohar Foroozan