Patents by Inventor Michael Grunberg
Michael Grunberg 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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Patent number: 11850361Abstract: A respiratory treatment apparatus generates an indication of inspiration or expiration based on a measure of motor current of a flow generator. In an example, first and second current signals are derived from the measurement. The first derived current signal may be a long term measure or average of current and the second derived current signal may be a short term measure or average of current. A processor 120 determines an indication of inspiration or expiration as a function of the first and second derived current signals. The function of the first derived current signal and the second derived current signal may be a comparison of the derived current signals. The derived signals may be determined by filtering. The indication of inspiration or expiration may serve as a trigger or cycle control for changing treatment pressure in synchrony with patient respiration without measured signals from pressure, flow or speed sensors.Type: GrantFiled: June 7, 2021Date of Patent: December 26, 2023Assignee: RESMED MOTOR TECHNOLOGIES INC.Inventors: David James Fleming, Michael Grunberg
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Publication number: 20220062570Abstract: A respiratory treatment apparatus generates an indication of inspiration or expiration based on a measure of motor current of a flow generator. In an example, first and second current signals are derived from the measurement. The first derived current signal may be a long term measure or average of current and the second derived current signal may be a short term measure or average of current. A processor 120 determines an indication of inspiration or expiration as a function of the first and second derived current signals. The function of the first derived current signal and the second derived current signal may be a comparison of the derived current signals. The derived signals may be determined by filtering. The indication of inspiration or expiration may serve as a trigger or cycle control for changing treatment pressure in synchrony with patient respiration without measured signals from pressure, flow or speed sensors.Type: ApplicationFiled: June 7, 2021Publication date: March 3, 2022Applicant: RESMED MOTOR TECHNOLOGIES INC.Inventors: David James FLEMING, Michael GRUNBERG
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Patent number: 11207480Abstract: A method of a control system controls an inductance motor in a device that may include an impeller using a pressure compensation control system. The control system may be implemented in a respiratory pressure therapy device. The control system may include a sensor configured to provide a pressure signal indicative of the pressure of a flow of fluid produced by the device. A measured pressure may be compared to a set pressure to determine a pressure error. A slip frequency may be adjusted as a function of the pressure error in an attempt to eliminate or minimise the pressure error.Type: GrantFiled: March 20, 2020Date of Patent: December 28, 2021Assignee: ResMed Motor Technologies Inc.Inventors: David James Fleming, Michael Grunberg, Aleksandr S. Nagorny, Siavash Sadeghi
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Patent number: 11052206Abstract: A respiratory treatment apparatus generates an indication of inspiration or expiration based on a measure of motor current of a flow generator. In an example, first and second current signals are derived from the measurement. The first derived current signal may be a long term measure or average of current and the second derived current signal may be a short term measure or average of current. A processor (120) determines an indication of inspiration or expiration as a function of the first and second derived current signals. The function of the first derived current signal and the second derived current signal may be a comparison of the derived current signals. The derived signals may be determined by filtering. The indication of inspiration or expiration may serve as a trigger or cycle control for changing treatment pressure in synchrony with patient respiration without measured signals from pressure, flow or speed sensors.Type: GrantFiled: May 13, 2013Date of Patent: July 6, 2021Assignee: ResMed Motor Technologies Inc.Inventors: David James Fleming, Michael Grunberg
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Publication number: 20200215282Abstract: A method of a control system controls an inductance motor in a device that may include an impeller using a pressure compensation control system. The control system may be implemented in a respiratory pressure therapy device. The control system may include a sensor configured to provide a pressure signal indicative of the pressure of a flow of fluid produced by the device. A measured pressure may be compared to a set pressure to determine a pressure error. A slip frequency may be adjusted as a function of the pressure error in an attempt to eliminate or minimise the pressure error.Type: ApplicationFiled: March 20, 2020Publication date: July 9, 2020Applicant: RESMED MOTOR TECHNOLOGIES INC.Inventors: David James Fleming, Michael Grunberg, Aleksandr S. Nagorny, Siavash Sadeghi
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Patent number: 10625035Abstract: A method of a control system (2200) controls an inductance motor in a blower including an impeller and volute using a pressure compensation control system. The control system may be implemented in a respiratory pressure therapy device. The control system may include a sensor configured to provide a pressure signal indicative of the pressure of a flow of fluid produced by the blower. A measured pressure may be compared to a set pressure to determine a pressure error. A slip frequency may be adjusted as a function of the pressure error in an attempt to eliminate or minimise the pressure error.Type: GrantFiled: September 16, 2015Date of Patent: April 21, 2020Assignee: ResMed Motor Technologies Inc.Inventors: David James Fleming, Michael Grunberg, Aleksandr S. Nagorny, Siavash Sadeghi
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Publication number: 20170363096Abstract: A method of a control system (2200) controls an inductance motor in a blower including an impeller and volute using a pressure compensation control system. The control system may be implemented in a respiratory pressure therapy device. The control system may include a sensor configured to provide a pressure signal indicative of the pressure of a flow of fluid produced by the blower. A measured pressure may be compared to a set pressure to determine a pressure error. A slip frequency may be adjusted as a function of the pressure error in an attempt to eliminate or minimise the pressure error.Type: ApplicationFiled: September 16, 2015Publication date: December 21, 2017Applicant: ResMed Motor Technologies Inc.Inventors: David James Fleming, Michael Grunberg, Aleksandr S. Nagorny, Siavash Sadeghi
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Publication number: 20150136136Abstract: A respiratory treatment apparatus generates an indication of inspiration or expiration based on a measure of motor current of a flow generator. In an example, first and second current signals are derived from the measurement. The first derived current signal may be a long term measure or average of current and the second derived current signal may be a short term measure or average of current. A processor (120) determines an indication of inspiration or expiration as a function of the first and second derived current signals. The function of the first derived current signal and the second derived current signal may be a comparison of the derived current signals. The derived signals may be determined by filtering. The indication of inspiration or expiration may serve as a trigger or cycle control for changing treatment pressure in synchrony with patient respiration without measured signals from pressure, flow or speed sensors.Type: ApplicationFiled: May 13, 2013Publication date: May 21, 2015Inventors: David James Fleming, Michael Grunberg