Patents by Inventor Mihail Popescu
Mihail Popescu 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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Publication number: 20210378511Abstract: Methods and systems for an integrated sensor network are described. In one embodiment, sensor data may be accessed from a plurality of motion sensors and a bed sensor deployed in a living unit for a first time period. An activity pattern for the first time period may be identified based on at least a portion of sensor data associated with the first time period. The activity pattern may represent a physical and cognitive health condition of a person residing in the living unit. Additional sensor data may be accessed from the motion sensors and the bed sensor deployed for a second time period. A determination of whether a deviation of the activity pattern of the first time period has occurred for the second time period may be performed. An alert may be generated based on a determination that the derivation has occurred. In some embodiments, user feedback is captured on the significance of the alerts, and the alert method is customized based on this feedback. Additional methods and systems are disclosed.Type: ApplicationFiled: August 24, 2021Publication date: December 9, 2021Inventors: Marjorie Skubic, Marilyn J. Rantz, Mihail Popescu, Shuang Wang, Isaac J. Sledge, Rainer Dane A. Guevara, Elena Florea, James M. Keller
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Patent number: 11147451Abstract: Methods and systems for an integrated sensor network are described. In one embodiment, sensor data may be accessed from a plurality of motion sensors and a bed sensor deployed in a living unit for a first time period. An activity pattern for the first time period may be identified based on at least a portion of sensor data associated with the first time period. The activity pattern may represent a physical and cognitive health condition of a person residing in the living unit. Additional sensor data may be accessed from the motion sensors and the bed sensor deployed for a second time period. A determination of whether a deviation of the activity pattern of the first time period has occurred for the second time period may be performed. An alert may be generated based on a determination that the derivation has occurred. In some embodiments, user feedback is captured on the significance of the alerts, and the alert method is customized based on this feedback. Additional methods and systems are disclosed.Type: GrantFiled: January 18, 2019Date of Patent: October 19, 2021Assignee: The Curators of the University of MissouriInventors: Marjorie Skubic, Marilyn J. Rantz, Mihail Popescu, Shuang Wang, Isaac J. Sledge, Rainer Dane A. Guevara, Elena Florea, James M. Keller
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Publication number: 20190167103Abstract: Methods and systems for an integrated sensor network are described. In one embodiment, sensor data may be accessed from a plurality of motion sensors and a bed sensor deployed in a living unit for a first time period. An activity pattern for the first time period may be identified based on at least a portion of sensor data associated with the first time period. The activity pattern may represent a physical and cognitive health condition of a person residing in the living unit. Additional sensor data may be accessed from the motion sensors and the bed sensor deployed for a second time period. A determination of whether a deviation of the activity pattern of the first time period has occurred for the second time period may be performed. An alert may be generated based on a determination that the derivation has occurred. In some embodiments, user feedback is captured on the significance of the alerts, and the alert method is customized based on this feedback. Additional methods and systems are disclosed.Type: ApplicationFiled: January 22, 2019Publication date: June 6, 2019Inventors: Marjorie Skubic, Marilyn J. Rantz, Mihail Popescu, Shuang Wang, Isaac J. Sledge, Rainer Dane A. Guevara, Elena Florea, James M. Keller
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Publication number: 20190167102Abstract: Methods and systems for an integrated sensor network are described. In one embodiment, sensor data may be accessed from a plurality of motion sensors and a bed sensor deployed in a living unit for a first time period. An activity pattern for the first time period may be identified based on at least a portion of sensor data associated with the first time period. The activity pattern may represent a physical and cognitive health condition of a person residing in the living unit. Additional sensor data may be accessed from the motion sensors and the bed sensor deployed for a second time period. A determination of whether a deviation of the activity pattern of the first time period has occurred for the second time period may be performed. An alert may be generated based on a determination that the derivation has occurred. In some embodiments, user feedback is captured on the significance of the alerts, and the alert method is customized based on this feedback. Additional methods and systems are disclosed.Type: ApplicationFiled: January 18, 2019Publication date: June 6, 2019Inventors: Marjorie Skubic, Marilyn J. Rantz, Mihail Popescu, Shuang Wang, Isaac J. Sledge, Rainer Dane A. Guevara, Elena Florea, James M. Keller
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Publication number: 20190029569Abstract: A method for determining the risk of a person falling is provided. The method includes acquiring depth image data that comprises a plurality of frames that depict a person walking through a home, and extracting a foreground object from the depth image data. The method additionally includes generating a three-dimensional data object based on the foreground object, and identifying a walking sequence from the three-dimensional data object. The method further includes generating one or more gait parameters from the identified walking sequence, and comparing the one or more gait parameters against a standard clinical measure of the one or more gait parameters to determine a level of risk at which the person is of falling.Type: ApplicationFiled: August 22, 2018Publication date: January 31, 2019Inventors: Erik Edward Stone, Marjorie Skubic, Marilyn Rantz, Mihail Popescu
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Patent number: 10188295Abstract: Methods and systems for an integrated sensor network are described. In one embodiment, sensor data may be accessed from a plurality of motion sensors and a bed sensor deployed in a living unit for a first time period. An activity pattern for the first time period may be identified based on at least a portion of sensor data associated with the first time period. The activity pattern may represent a physical and cognitive health condition of a person residing in the living unit. Additional sensor data may be accessed from the motion sensors and the bed sensor deployed for a second time period. A determination of whether a deviation of the activity pattern of the first time period has occurred for the second time period may be performed. An alert may be generated based on a determination that the derivation has occurred. In some embodiments, user feedback is captured on the significance of the alerts, and the alert method is customized based on this feedback. Additional methods and systems are disclosed.Type: GrantFiled: June 1, 2010Date of Patent: January 29, 2019Assignee: The Curators of the University of MissouriInventors: Marjorie Skubic, Marilyn J. Rantz, Mihail Popescu, Shuang Wang, Isaac J. Sledge, Rainer Dane A. Guevara, Elena Florea, James M. Keller
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Patent number: 10080513Abstract: A method for determining the risk of a person falling is provided. The method includes acquiring depth image data that comprises a plurality of frames that depict a person walking through a home, and extracting a foreground object from the depth image data. The method additionally includes generating a three-dimensional data object based on the foreground object, and identifying a walking sequence from the three-dimensional data object. The method further includes generating one or more gait parameters from the identified walking sequence, and comparing the one or more gait parameters against a standard clinical measure of the one or more gait parameters to determine a level of risk at which the person is of falling.Type: GrantFiled: February 3, 2017Date of Patent: September 25, 2018Assignee: The Curators of the University of MissouriInventors: Erik Edward Stone, Marjorie Skubic, Marilyn Rantz, Mihail Popescu
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Publication number: 20170143240Abstract: A method for determining the risk of a person falling is provided. The method includes acquiring depth image data that comprises a plurality of frames that depict a person walking through a home, and extracting a foreground object from the depth image data. The method additionally includes generating a three-dimensional data object based on the foreground object, and identifying a walking sequence from the three-dimensional data object. The method further includes generating one or more gait parameters from the identified walking sequence, and comparing the one or more gait parameters against a standard clinical measure of the one or more gait parameters to determine a level of risk at which the person is of falling.Type: ApplicationFiled: February 3, 2017Publication date: May 25, 2017Inventors: Erik Edward Stone, Marjorie Skubic, Marilyn Rantz, Mihail Popescu
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Patent number: 9597016Abstract: A method for performing health risk assessments for a patient in a home or medical facility is provided. In various embodiments, the method comprises compiling depth image data from at least one depth camera associated with a particular patient, and generating at least one three-dimensional object based on the depth image data. The method additionally includes identifying a walking sequence from the at least one three-dimensional object, analyzing the walking sequence to generate one or more parameters, and performing at least one health risk assessment based on the one or more parameters to determine a health risk assessment score. The method further comprises sending an alert message to at least one caregiver when the at least one health risk assessment indicates the occurrence of an incident (i.e., the recorded depth image data) denoting that the patient has fallen or that there exists a high risk of the patient falling.Type: GrantFiled: January 31, 2014Date of Patent: March 21, 2017Assignee: The Curators of the University of MissouriInventors: Erik Edward Stone, Marjorie Skubic, Marilyn Rantz, Mihail Popescu
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Publication number: 20140148733Abstract: A method for performing health risk assessments for a patient in a home or medical facility is provided. In various embodiments, the method comprises compiling depth image data from at least one depth camera associated with a particular patient, and generating at least one three-dimensional object based on the depth image data. The method additionally includes identifying a walking sequence from the at least one three-dimensional object, analyzing the walking sequence to generate one or more parameters, and performing at least one health risk assessment based on the one or more parameters to determine a health risk assessment score. The method further comprises sending an alert message to at least one caregiver when the at least one health risk assessment indicates the occurrence of an incident (i.e., the recorded depth image data) denoting that the patient has fallen or that there exists a high risk of the patient falling.Type: ApplicationFiled: January 31, 2014Publication date: May 29, 2014Applicant: The Curators of the University of MissouriInventors: Erik Edward Stone, Marjorie Skubic, Marilyn Rantz, Mihail Popescu
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Patent number: 8120312Abstract: A power supply topology according to one embodiment includes a first path coupled to a controllable DC power source, a second path coupled to a rechargeable battery, and a third path coupled to a system load, the three paths coupled to a common node. The topology may further include a unidirectional switch coupled to the first path and a selectively unidirectional switch coupled to the second path. The topology may further include a power management control circuit including a wake up circuit having a comparison circuit and an output decision circuit. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.Type: GrantFiled: September 7, 2010Date of Patent: February 21, 2012Assignee: 02Micro International LimitedInventors: Constantin Bucur, Vlad Mihail Popescu-Stanesti, Marian Niculae, Daryl Nees
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Publication number: 20100302043Abstract: Methods and systems for an integrated sensor network are described. In one embodiment, sensor data may be accessed from a plurality of motion sensors and a bed sensor deployed in a living unit for a first time period. An activity pattern for the first time period may be identified based on at least a portion of sensor data associated with the first time period. The activity pattern may represent a physical and cognitive health condition of a person residing in the living unit. Additional sensor data may be accessed from the motion sensors and the bed sensor deployed for a second time period. A determination of whether a deviation of the activity pattern of the first time period has occurred for the second time period may be performed. An alert may be generated based on a determination that the derivation has occurred. In some embodiments, user feedback is captured on the significance of the alerts, and the alert method is customized based on this feedback. Additional methods and systems are disclosed.Type: ApplicationFiled: June 1, 2010Publication date: December 2, 2010Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURIInventors: Marjorie Skubic, Marilyn J. Rantz, Mihail Popescu, Shuang Wang, Isaac J. Sledge, Rainer Dane A. Guevara, Elena Florea, James M. Keller
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Patent number: 7791314Abstract: A power supply topology according to one embodiment includes a first path coupled to a controllable DC power source, a second path coupled to a rechargeable battery, and a third path coupled to a system load, the three paths coupled to a common node. The topology may further include a unidirectional switch coupled to the first path and a selectively unidirectional switch coupled to the second path. The topology may further include a power management control circuit including a wake up circuit having a comparison circuit and an output decision circuit. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.Type: GrantFiled: March 25, 2008Date of Patent: September 7, 2010Assignee: O2Micro International LimitedInventors: Constantin Bucur, Vlad Mihail Popescu-Stanesti, Marian Niculae, Daryl Nees
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Patent number: 7615965Abstract: A method according to one embodiment may include selecting at least one power supply, among a plurality of different power supplies, and coupling at least one available power supply to a load. The method may also include selecting at least one charging mode, among a plurality of different charging modes, to charge a rechargeable battery. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.Type: GrantFiled: August 27, 2004Date of Patent: November 10, 2009Assignee: O2Micro International LimitedInventors: Vlad Mihail Popescu-Stanesti, Jiwei Chen, Oleg Kobildjanov
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Patent number: 7615981Abstract: A DC to DC converter for converting an input DC voltage to an output DC voltage. The DC to DC converter may include at least one switch, an inductor coupled to the at least one switch, and a controller capable of providing a control signal. The at least one switch may be responsive to the control signal in a first state to enter an ON state for an ON time interval, the ON time interval based on the input DC voltage and a constant. An electronic device including such a DC to DC converter and related methods are also provided.Type: GrantFiled: September 17, 2004Date of Patent: November 10, 2009Assignee: O2Micro International LimitedInventors: Foot Shen Wong, Ming Kwang Han, Vlad Mihail Popescu-Stanesti
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Patent number: 7508176Abstract: A controller for a DC to DC converter. The controller may comprise linear mode circuitry and switch mode control circuitry. The linear mode control circuitry may be capable of providing a first control signal to a controlled device of the DC to DC converter. The controlled device may operate as a variable resistor in response to the first control signal to control an output voltage of the DC to DC converter. The switch mode control circuitry may be capable of providing a second control signal to the controlled device of the DC to DC converter. The controlled device may turn ON and OFF in response to the second control signal to control the output voltage of the DC to DC converter. One of the linear mode control circuitry and the switch mode control circuitry may be enabled. The controller may also include protection circuitry.Type: GrantFiled: October 13, 2005Date of Patent: March 24, 2009Assignee: O2Micro International LimitedInventors: Alexandru Hartular, Chun Lu, You-Yuh Shyr, Constantin Bucur, Vlad Mihail Popescu-Stanesti, Jiwei Chen, Oleg Kobildjanov
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Patent number: 7088076Abstract: A power management topology for portable electronic devices that includes a feed-enabled AC/DC adapter that receives feedback data from a charge controller associated with the portable device. The feedback data can include battery charging current, battery voltage, or power requirements of the portable device. Using the feedback data, the external AC/DC adapter can adjust the DC output to meet the charging requirement of the battery and/or the power requirements of the portable device.Type: GrantFiled: October 14, 2003Date of Patent: August 8, 2006Assignee: O2Micro International LimitedInventors: William L. Densham, Vlad Mihail Popescu-Stanesti, Constantin Spiridon
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Publication number: 20060028188Abstract: A controller for a DC to DC converter. The controller may comprise linear mode circuitry and switch mode control circuitry. The linear mode control circuitry may be capable of providing a first control signal to a controlled device of the DC to DC converter. The controlled device may operate as a variable resistor in response to the first control signal to control an output voltage of the DC to DC converter. The switch mode control circuitry may be capable of providing a second control signal to the controlled device of the DC to DC converter. The controlled device may turn ON and OFF in response to the second control signal to control the output voltage of the DC to DC converter. One of the linear mode control circuitry and the switch mode control circuitry may be enabled. The controller may also include protection circuitry.Type: ApplicationFiled: October 13, 2005Publication date: February 9, 2006Inventors: Alexandru Hartular, Chun Lu, You-Yuh Shyr, Constantin Bucur, Vlad Mihail Popescu-Stanesti, Jiwei Chen, Oleg Kobildjanov
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Publication number: 20050253560Abstract: A method according to one embodiment may include selecting at least one power supply, among a plurality of different power supplies, and coupling at least one available power supply to a load. The method may also include selecting at least one charging mode, among a plurality of different charging modes, to charge a rechargeable battery. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.Type: ApplicationFiled: August 27, 2004Publication date: November 17, 2005Inventors: Vlad Mihail Popescu-Stanesti, Jiwei Chen, Oleg Kobildjanov
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Publication number: 20050248417Abstract: An apparatus is provided for modifying a timing signal generated by a timing signal generator. The timing signal is modified indirectly by first modifying a power supply signal from a power supply upon which the timing signal generator is dependent to generate the timing signal. Initiating an introduction of at least one transient signal component of variable length by a transient insertion device into the power supply signal causes the timing signal generator to be disrupted and at least one transient signal component to be introduced within the timing signal. A particular implementation of the invention is an electrical circuit consisting of both active and passive electronic components.Type: ApplicationFiled: May 7, 2004Publication date: November 10, 2005Inventors: Mihail Popescu, John Downey, Peter Phelps, Andre Brissette