Patents by Inventor David Michael Davenport
David Michael Davenport 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: 10874324Abstract: Implementations are disclosed for monitoring a state or change in state of a physiological parameter based on measured impedance data. In certain implementations, no images are reconstructed from the impedance data. In certain implementations, a metric (e.g., distinguishability, likelihood ratios, and so forth) may be computed and compared to reference metrics or thresholds, such as for changes over time or in comparison to a standard to determine the presence or absence of a physiological state of interest or of a change in such state.Type: GrantFiled: October 20, 2015Date of Patent: December 29, 2020Assignee: GENERAL ELECTRIC COMPANYInventors: Gregory Boverman, Tzu-Jen Kao, Bruce Courtney Campbell Amm, Jeffrey Michael Ashe, David Michael Davenport
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Patent number: 10357178Abstract: A method includes applying a plurality of currents to a plurality of electrodes disposed on a surface surrounding an anatomical region in a subject. Further, the method includes measuring a plurality of voltages generated in response to the plurality of currents. The method also includes selecting a coarse-scale basis corresponding to a response function associated with the plurality of electrodes. Moreover, the method includes determining simultaneously an internal admittivity corresponding to the anatomical region and a contact impedance corresponding to the plurality of electrodes based on the plurality of voltages and the coarse-scale basis. The method also includes reconstructing the diagnostic image based on the internal admittivity.Type: GrantFiled: December 16, 2015Date of Patent: July 23, 2019Assignee: General Electric CompanyInventors: Gregory Boverman, David Michael Davenport, Jeffrey Michael Ashe, Bruce Courtney Campbell Amm
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Patent number: 10230491Abstract: A method for controlling data flow in a wireless body area network includes transmitting sensor data from a plurality of sensor nodes to a gateway via a first transmission channel. The method further includes transmitting beacon data from the gateway to the plurality of sensor nodes via the first transmission channel. The method also includes determining channel packet loss information of the first transmission channel based on at least one of a beacon packet loss information included in the sensor data and a sensor packet loss information included in the beacon data. The method further includes comparing the channel packet loss information with a packet loss threshold. The method also includes switching flow of the sensor data and the beacon data through a second transmission channel instead of the first transmission channel, if the channel packet loss information is greater than the packet loss threshold.Type: GrantFiled: December 15, 2015Date of Patent: March 12, 2019Assignee: GENERAL ELECTRIC COMPANYInventors: Stanislava Soro, Steven William Wik, SM Shajedul Hasan, David Michael Davenport
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Patent number: 9770171Abstract: A system for managing transfer of data in a medical body area network (MBAN) is presented. The system includes one or more sensor units disposed on a patient and configured to acquire data from the patient. Moreover, the system includes one or more detachable wireless communication and battery units, where the one or more detachable wireless communication and battery units are detachably coupled to a corresponding sensor unit. In addition, the system includes a patient monitoring device in bi-directional wireless communication with the one or more detachable wireless communication and battery units and configured to receive sensor data and maintain network connectivity between the one or more wireless communication and battery units and the patient monitoring device based on an operating condition of at least one wireless communication and battery unit of the one or more wireless communication and battery units.Type: GrantFiled: December 17, 2015Date of Patent: September 26, 2017Assignee: General Electric CompanyInventors: Steven William Wik, David Michael Davenport, SM Shajedul Hasan
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Patent number: 9706923Abstract: A system includes wireless sensor devices monitoring a patient, a gateway device providing dual-frequency adaptive protocol time synchronization signals to the sensor devices, the time synchronization signals including a communication frame structure having time slots including two beacon signal time slots and a plurality of data slots, where the sensor devices transmit respective patient data a first time interleaved within a first data slot and a second time interleaved within a second data slot, the first interleaved data transmission and the second interleaved data transmission are each transmitted at respective different frequencies provided to the sensor devices in beacon signals received from the gateway device. The first interleaved data transmission includes both current data and previous data from the at least two wireless sensor devices, and a frequency agility pattern separates adjacent channels by a respective predetermined frequency offset. A method and non-transitory medium are disclosed.Type: GrantFiled: February 25, 2014Date of Patent: July 18, 2017Assignee: General Electric CompanyInventors: Stanislava Soro, David Michael Davenport, Steven William Wik, S M Shajedul Hasan
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Publication number: 20170172415Abstract: A system for managing transfer of data in a medical body area network (MBAN) is presented. The system includes one or more sensor units disposed on a patient and configured to acquire data from the patient. Moreover, the system includes one or more detachable wireless communication and battery units, where the one or more detachable wireless communication and battery units are detachably coupled to a corresponding sensor unit. In addition, the system includes a patient monitoring device in bi-directional wireless communication with the one or more detachable wireless communication and battery units and configured to receive sensor data and maintain network connectivity between the one or more wireless communication and battery units and the patient monitoring device based on an operating condition of at least one wireless communication and battery unit of the one or more wireless communication and battery units.Type: ApplicationFiled: December 17, 2015Publication date: June 22, 2017Inventors: Steven William Wik, David Michael Davenport, SM Shajedul Hasan
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Publication number: 20170172451Abstract: A method includes applying a plurality of currents to a plurality of electrodes disposed on a surface surrounding an anatomical region in a subject. Further, the method includes measuring a plurality of voltages generated in response to the plurality of currents. The method also includes selecting a coarse-scale basis corresponding to a response function associated with the plurality of electrodes. Moreover, the method includes determining simultaneously an internal admittivity corresponding to the anatomical region and a contact impedance corresponding to the plurality of electrodes based on the plurality of voltages and the coarse-scale basis. The method also includes reconstructing the diagnostic image based on the internal admittivity.Type: ApplicationFiled: December 16, 2015Publication date: June 22, 2017Inventors: Gregory Boverman, David Michael Davenport, Jeffrey Michael Ashe, Bruce Courtney Campbell Amm
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Publication number: 20170170924Abstract: A method for controlling data flow in a wireless body area network includes transmitting sensor data from a plurality of sensor nodes to a gateway via a first transmission channel. The method further includes transmitting beacon data from the gateway to the plurality of sensor nodes via the first transmission channel. The method also includes determining channel packet loss information of the first transmission channel based on at least one of a beacon packet loss information included in the sensor data and a sensor packet loss information included in the beacon data. The method further includes comparing the channel packet loss information with a packet loss threshold. The method also includes switching flow of the sensor data and the beacon data through a second transmission channel instead of the first transmission channel, if the channel packet loss information is greater than the packet loss threshold.Type: ApplicationFiled: December 15, 2015Publication date: June 15, 2017Inventors: Stanislava Soro, Steven William Wik, SM Shajedul Hasan, David Michael Davenport
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Publication number: 20170155427Abstract: The invention is focused toward enhancing a patient's mobility by providing seamless information/data transfer between medical monitoring devices such as a patient monitor, telemetry hubs, or another mobile monitoring system. The information or data, which are transferred among the medical devices include, but are not limited to, patient demographic information, wireless network, or pairing information. A set of wireless sensors (e.g. ECG, NIBP, Temp, SpO2), which are located on a patient's body, are connected wirelessly to a patient monitor, which is not a mobile device. When a clinician needs to move the patient from one location to a another location, the clinician brings the mobile monitor close to the fixed monitor to transfer the patient and wireless network information to the mobile monitor automatically. This enables the transfer of connected on-body wireless sensors from one medical device to another medical device without physically detaching them from a patient's body.Type: ApplicationFiled: November 30, 2015Publication date: June 1, 2017Inventors: SM Shajedul Hasan, Steven William Wik, David Michael Davenport, Aghogho Atemu Obi, Stanislava Soro
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Publication number: 20170105648Abstract: Implementations are disclosed for monitoring a state or change in state of a physiological parameter based on measured impedance data. In certain implementations, no images are reconstructed from the impedance data. In certain implementations, a metric (e.g., distinguishability, likelihood ratios, and so forth) may be computed and compared to reference metrics or thresholds, such as for changes over time or in comparison to a standard to determine the presence or absence of a physiological state of interest or of a change in such state.Type: ApplicationFiled: October 20, 2015Publication date: April 20, 2017Inventors: Gregory Boverman, Tzu-Jen Kao, Bruce Courtney Campbell Amm, Jeffrey Michael Ashe, David Michael Davenport
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Publication number: 20170100059Abstract: A signal of a current-voltage sensor array in one embodiment is processed for output of data in a form for use by a care provider. The current-voltage sensor array in one embodiment is a non-invasive current-voltage sensor array adapted to surround a thorax of a patient. The output of data in one embodiment is provided in a lung function visualization output form that depicts functioning of a patient's lungs.Type: ApplicationFiled: October 9, 2015Publication date: April 13, 2017Applicant: GENERAL ELECTRIC COMPANYInventors: Tzu-Jen KAO, David Michael DAVENPORT, Jeffrey Michael ASHE, Bruce Courtney Campbell AMM
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Publication number: 20150238082Abstract: A system includes wireless sensor devices monitoring a patient, a gateway device providing dual-frequency adaptive protocol time synchronization signals to the sensor devices, the time synchronization signals including a communication frame structure having time slots including two beacon signal time slots and a plurality of data slots, where the sensor devices transmit respective patient data a first time interleaved within a first data slot and a second time interleaved within a second data slot, the first interleaved data transmission and the second interleaved data transmission are each transmitted at respective different frequencies provided to the sensor devices in beacon signals received from the gateway device. The first interleaved data transmission includes both current data and previous data from the at least two wireless sensor devices, and a frequency agility pattern separates adjacent channels by a respective predetermined frequency offset. A method and non-transitory medium are disclosed.Type: ApplicationFiled: February 25, 2014Publication date: August 27, 2015Applicant: General Electric CompanyInventors: Stanislava Soro, David Michael Davenport, Steven William Wik, SM Shajedul Hasan
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Patent number: 9041532Abstract: Systems and methods for managing patient monitoring devices are disclosed. Patient information is transmitted from a patient sensor operatively coupled to a patient to a patient monitor. The patient sensor and the patient monitor are communicatively coupled over a communications network available in a designated monitoring area. Further, loss of the patient sensor from the designated monitoring area is detected by one or more of the patient sensor, the patient monitor and a user. One or more loss prevention indicators are initiated at the patient sensor upon detecting the loss of the patient sensor. Additionally, the loss prevention indicators are communicated to indicate location of the lost patient sensor.Type: GrantFiled: November 5, 2013Date of Patent: May 26, 2015Assignee: General Electric CompanyInventors: SM Shajedul Hasan, David Michael Davenport, Steven William Wik
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Publication number: 20150123786Abstract: Systems and methods for managing patient monitoring devices are disclosed. Patient information is transmitted from a patient sensor operatively coupled to a patient to a patient monitor. The patient sensor and the patient monitor are communicatively coupled over a communications network available in a designated monitoring area. Further, loss of the patient sensor from the designated monitoring area is detected by one or more of the patient sensor, the patient monitor and a user. One or more loss prevention indicators are initiated at the patient sensor upon detecting the loss of the patient sensor. Additionally, the loss prevention indicators are communicated to indicate location of the lost patient sensor.Type: ApplicationFiled: November 5, 2013Publication date: May 7, 2015Applicant: General Electric CompanyInventors: SM Shajedul Hasan, David Michael Davenport, Steven William Wik
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Publication number: 20150023204Abstract: A system includes a first network member that includes a first channel and a second channel. The first channel is configured as a charging channel and is configured to at least one of wirelessly receive or transmit power. The first channel is also configured to transmit network pairing information for at least one of pairing or un-pairing the first network member and a second network member. The network pairing information is transmitted over the first channel at a first frequency. The second channel is configured as an operational channel, and is configured to communicate operational information between the first and second network members when the first and second network members are paired. The operational information is transmitted over the second channel at a second frequency that is different than the first frequency.Type: ApplicationFiled: July 19, 2013Publication date: January 22, 2015Applicant: General Electric CompanyInventors: Steven William Wik, David Michael Davenport, SM Shajedul Hasan
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Publication number: 20150002168Abstract: One system includes a pattern generator that generates one or more excitation patterns suitable for probing a hydration level of a tissue of a subject at one or more depths from a surface of the subject into an interrogation region. Each of the excitation patterns has a spatial sensitivity at one of the one or more predetermined depths. A data analysis module receives one or more measured responses of the subject at a plurality of electrodes to excitation applied by the plurality of electrodes based on the one or more excitation patterns and determines one or more hydration changes at the one or more depths within the subject based on the measured responses. Each of the measured responses corresponds to the one of the one or more predetermined depths for which the applied excitation pattern has spatial sensitivity.Type: ApplicationFiled: June 27, 2013Publication date: January 1, 2015Inventors: Tzu-Jen Kao, David Michael Davenport, Jeffrey Michael Ashe, Xiaohui Chen
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Patent number: 8675613Abstract: A wireless communication system includes a network controller configured to manage communication time periods in a wireless network, and a plurality of peripheral devices connected to the network controller through the wireless network. Each peripheral device is associated with a respective contiguous communication time period during which communications between the network controller and the peripheral device are allowed. The network controller is further configured to identify an open communication time period associated with one of the plurality of peripheral devices that has no communication between the network controller and the one of the plurality of peripheral devices and associate another of the plurality of peripheral devices that is associated with a different communication time period with the identified open communication time period.Type: GrantFiled: January 18, 2008Date of Patent: March 18, 2014Assignee: General Electric CompanyInventors: John Anderson Fergus Ross, David Michael Davenport
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Patent number: 8509129Abstract: A system for setting WLAN node operating parameters includes at least one access point (AP) radio and a plurality of nodes in wireless communication with the AP radio according to media access control (MAC) parameters. Each of the plurality of nodes has a quality of service (QoS) threshold for wireless communication with the AP radio that is a function of the MAC parameters and includes a controller configured to provide individualized control of the MAC parameters. The controller is programmed to measure current settings for at least a portion of the MAC parameters for the node, input the current settings for those MAC parameters of the node into a WLAN system model to generate a system model output, and adapt a setting of at least one of the MAC parameters for the node to meet the QoS threshold for the node based on the system model output.Type: GrantFiled: June 4, 2008Date of Patent: August 13, 2013Assignee: General Electric CompanyInventors: Budhaditya Deb, Michael James Hartman, David Michael Davenport, Matthew George Grubis
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Patent number: 8315224Abstract: Methods and systems and computer program products for reusing radio resources in a medical telemetry networks are provided. The method receives at a server, traffic information for a plurality of mobile transceivers, from a plurality of distributed receivers. The method identifies time slot assignments and frequency channel assignments of the plurality of mobile transceivers based on traffic information. The method then updates one or more time slot assignments and/or one or more frequency channel assignments based, at least in part, on traffic information. Finally, the method broadcasts updated instances of the time slot assignments and updated instances of frequency channel assignments.Type: GrantFiled: January 22, 2010Date of Patent: November 20, 2012Assignee: General Electric CompanyInventors: Ralph Thomas Hoctor, David Michael Davenport, Neal John Seidl, Matthew George Grubis, Sahika Genc
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Patent number: 8283930Abstract: A method and apparatus for determining the attenuation of an RF signal caused by a DPF at an unknown or different ambient temperature than the temperature used for DPF sensor calibration is disclosed. The method and apparatus determine the sensor attenuation just prior to determining the DPF attenuation by disconnecting the antennas and determining the attenuation of a loopback path. This sensor attenuation can then be deducted from the attenuation determined for the normal path that includes the attenuation caused by the loopback path, the cables, and the DPF. This method compensates for variation in the attenuation of the sensor caused by changes in ambient temperature of the sensor. Further temperature compensation is be achieved by determining additional factors to account for variations caused by changes in ambient temperature.Type: GrantFiled: September 29, 2009Date of Patent: October 9, 2012Assignee: General Electric CompanyInventors: David Michael Davenport, John Lofgren