Patents by Inventor Birpal Singh Sachdev

Birpal Singh Sachdev 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: 20200306495
    Abstract: A system for delivering sensory stimulation comprises a sensor configured to measure brain activity information of a patient during a sleep session; a sensory stimulator configured to deliver sensory simulation to the patient during the sleep session; and a computer system. One or more physical processors are programmed with computer program instructions which, when executed cause the computer system to: determine a first stimulation profile, a second stimulation profile, or a combination stimulation profile thereof based on obtained sleep cycle information and/or obtained cognitive domain information; and provide input to the sensory stimulator based on the determined stimulation profile, the provided input causing the sensory stimulator to deliver the sensory simulations to the patient based on the determined stimulation profile during the detected slow wave sleep in the patient.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 1, 2020
    Inventors: Gary Nelson GARCIA MOLINA, Jesse SALAZAR, Surya Subrahmanya Sreeram VISSAPRAGADA VENKATA SATYA, Antonio AQUINO, Birpal Singh SACHDEV
  • Publication number: 20200306494
    Abstract: Typically, high NREM stage N3 sleep detection accuracy is achieved using a frontal electrode referenced to an electrode at a distant location on the head (e.g., the mastoid, or the earlobe). For comfort and design considerations it is more convenient to have active and reference electrodes closely positioned on the frontal region of the head. This configuration, however, significantly attenuates the signal, which degrades sleep stage detection (e.g., N3) performance. The present disclosure describes a deep neural network (DNN) based solution developed to detect sleep using frontal electrodes only. N3 detection is enhanced through post-processing of the soft DNN outputs. Detection of slow-waves and sleep micro-arousals is accomplished using frequency domain thresholds. Volume modulation uses a high-frequency/low-frequency spectral ratio extracted from the frontal signal.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 1, 2020
    Inventors: Gary Nelson Garcia MOLINA, Ulf GROSSEKATHĂ–FER, Stojan TRAJANOVSKI, Jesse SALAZAR, Tsvetomira Kirova TSONEVA, Sander Theodoor PASTOOR, Antonio AQUINO, Adrienne HEINRICH, Birpal Singh SACHDEV
  • Publication number: 20190254591
    Abstract: The present disclosure pertains to a system and method for providing sensory stimulation (e.g., tones and/or other sensory stimulation) during sleep. The delivery of the sensory stimulation is timed based on a combination of output from a trained time dependent sleep stage model and output from minimally obtrusive sleep monitoring devices (e.g. actigraphy devices, radar devices, video actigraphy devices, an under mattress sensor, etc.). The present disclosure describes determining whether a user is in deep sleep based on this information and delivering sensory stimulation responsive to the user being in deep sleep. In some embodiments, the system comprises one or more sensory stimulators, one or more hardware processors, and/or other components.
    Type: Application
    Filed: February 19, 2019
    Publication date: August 22, 2019
    Inventors: Gary Nelson GARCIA MOLINA, Birpal Singh SACHDEV, William GAUSSA, David WHITE
  • Publication number: 20190216353
    Abstract: The present disclosure pertains to a system configured to deliver sensory stimulation to a user to enhance a target cognitive domain during a sleep session. Example target cognitive domains include memory consolidation, vigilance, verbal fluency, sleepiness, and/or other target cognitive domains. The stimulation is adjusted based on the target cognitive domain to be enhanced. Responsive to one or more brain activity parameters indicating the user is in sufficiently deep sleep, the system is configured to cause one or more sensory stimulators to provide sensory stimulation to the user according to a stimulation strategy associated with the target cognitive domain. The system is configured to determine the effect of the sensory stimulation provided to the user using a quantification method associated with the stimulation strategy and the target cognitive domain. The system includes one or more sensory stimulators, one or more sensors, one or more hardware processors, and/or other components.
    Type: Application
    Filed: November 15, 2018
    Publication date: July 18, 2019
    Inventors: Gary Nelson GARCIA MOLINA, David WHITE, Birpal Singh SACHDEV, William GAUSSA
  • Patent number: 10327711
    Abstract: Systems and methods for monitoring subjects after discharge from a hospital use a dynamic baseline to determine whether a caregiver needs to be notified regarding exacerbation of a medical state of a subject. The subjects are chronic obstructive pulmonary disease (COPD) patients. The dynamic baseline is determined by aggregating (for example averaging) multiple values of a sequence of values for a metric that quantifies one or both of a patient symptom (e.g. the number of overnight apnea occurrences) and/or lung function of a subject (e.g. forced expiratory volume in 1 second). Multiple metrics may be combined to generate the value that is monitored for a subject.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: June 25, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Birpal Singh Sachdev, Robert William Murdoch
  • Patent number: 9295797
    Abstract: A pressurized flow of breathable gas is delivered to the airway of a subject in accordance with a therapy regime. Responsive to the subject resuming respiration after a respiratory event, delivery of the pressurized flow of breathable gas is resumed at an inhalation in the therapy regime. As such, the therapy regime is effectively re-synchronized with the respiration of the subject subsequent to a respiratory event.
    Type: Grant
    Filed: September 5, 2011
    Date of Patent: March 29, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Andrew L. Shissler, Peter Douglas Hill, Birpal Singh Sachdev
  • Publication number: 20160029971
    Abstract: Systems and methods for monitoring subjects after discharge from a hospital use a dynamic baseline to determine whether a caregiver needs to be notified regarding exacerbation of a medical state of a subject. The subjects are chronic obstructive pulmonary disease (COPD) patients. The dynamic baseline is determined by aggregating (for example averaging) multiple values of a sequence of values for a metric that quantifies one or both of a patient symptom (e.g. the number of overnight apnea occurrences) and/or lung function of a subject (e.g. forced expiratory volume in 1 second). Multiple metrics may be combined to generate the value that is monitored for a subject.
    Type: Application
    Filed: March 5, 2014
    Publication date: February 4, 2016
    Inventors: Birpal Singh SACHDEV, Robert William MURDOCH
  • Publication number: 20130199532
    Abstract: A pressurized flow of breathable gas is delivered to the airway of a subject in accordance with a therapy regime. Responsive to the subject resuming respiration after a respiratory event, delivery of the pressurized flow of breathable gas is resumed at an inhalation in the therapy regime. As such, the therapy regime is effectively re-synchronized with the respiration of the subject subsequent to a respiratory event.
    Type: Application
    Filed: September 5, 2011
    Publication date: August 8, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Andrew L. Shissler, Peter Douglas Hill, Birpal Singh Sachdev
  • Publication number: 20130116942
    Abstract: A method of estimating leak flow in a gas delivery system is provided that includes determining an average total flow Qtot (or summation or integral of total flow) of the gas delivery system for each of N breaths, determining P?1 and P?2 for each of the N breaths, wherein P is a leak pressure of the gas delivery system, ?1 is a first predetermined value, ?2 is a second predetermined value, and P?1 and P?2 are averages for the breath (summation or integrals may also be used), setting up a system of N equations, one for each of the N breaths, wherein each of the equations has the form Qtot=Gorf.P?1+Gvg.P?2 and uses the determined Qtot, P?1 and P?2 for the associated breath, solving the system of N equations for Gorf and Gvg, and using Gorf and Gvg to calculate instantaneous leak Qleak using Qleak=Gorf.P?1+Gvg.
    Type: Application
    Filed: July 5, 2011
    Publication date: May 9, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Peter Douglas Hill, Birpal Singh Sachdev