Patents by Inventor David F. Wilson
David F. Wilson 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: 11971056Abstract: A head unit device for controlling motion of an object includes a chamber filled with a shear thickening fluid (STF) and a piston. The piston is housed within the chamber and exerts pressure against the STF from a force applied to the piston from the object. The STF is configured to have a decreasing viscosity in response to a first range of shear rates and an increasing viscosity in response to a second range of shear rates. The piston includes at least one piston bypass between opposite sides of the piston that controls flow of the STF between the opposite sides of the piston to selectively react with a shear threshold effect of the first range of shear rates or the second range of shear rates.Type: GrantFiled: October 29, 2021Date of Patent: April 30, 2024Assignee: Moshun, LLCInventors: Timothy John Boundy, Steven Michael Barger, Terence Michael Lydon, Richard Michael Lang, Wilfredo Gonzalez, Jr., Darren Michael Boundy, Eric McHugh, David Schuda, George L Wilson, IV, Gary W. Grube, Jason K. Resch, Mario F. DeRango, John Edward Buchalo, Richard A. Herbst, Kurt Estes, Evan Anderson
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Publication number: 20240127943Abstract: A pathogen detection and display system is configured to discover and display the location of substances of interest, particularly pathogens that can spread infection. The detection and display system can be used in healthcare facilities on surfaces, medical equipment and devices, patients, and staff, for example.Type: ApplicationFiled: December 15, 2023Publication date: April 18, 2024Applicant: Cardeya CorporationInventors: Charles R. Sperry, Lawrence J. Pillote, Vincent A. Piucci, Dennis F. McNamara, JR., James M. Wilson, III, Lisa Ruth Stowe, Brett M. Sitzlar, Barbara A. Piucci, David C. Chase
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Patent number: 11947407Abstract: A computer system, method, and non-transitory computer-readable medium are provided. A request including unauthenticated data is created and securely transmitted to a remote device, metadata corresponding to the request is updated to indicate successful validation, a response file is validated, and a discrepancy is detected between the unauthenticated data and the authenticated data. Correction data is obtained, and a transaction based on the request and the correction data is executed. A second processor of the remote device verifies that an unauthorized user has not modified the authenticated data, generates a database table based on one or more fields of the authenticated data, extracts one or more predetermined data values from the authenticated data and the database table, and validates the unauthenticated data in the request based on comparing the one or more predetermined data values from the authenticated data and the database table to the unauthenticated data in the request.Type: GrantFiled: January 12, 2023Date of Patent: April 2, 2024Assignee: FEDERAL HOME LOAN MORTGAGE CORPORATION (FREDDIE MAC)Inventors: David M. Wilson, Ann Epstein, Kathleen W. Scanlon, David F. Owens, Rajasekhar Penugonda, Raghu Kurlagunda
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Patent number: 10749380Abstract: A wireless status indicator for a wireless power transfer system includes an object configured to wirelessly generate power responsive to a magnetic flux field of a wireless power transmitter and to generate a status indication of the wireless power transfer system. A wireless power transfer system comprises a wireless power status indicator configured to wirelessly generate power responsive to a wireless power signal and to generate a status indication of the wireless power transfer system. A related method includes generating power by a wireless status indicator and generating a status indication responsive to a wireless power signal. The wireless status indicator is a separate stand-alone device than a wireless power transmitter and wireless power receiver involved in the wireless power transfer. The status indication corresponds to a state of wireless power transfer.Type: GrantFiled: September 23, 2014Date of Patent: August 18, 2020Assignee: Integrated Device Technology, Inc.Inventor: David F. Wilson
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Patent number: 10493168Abstract: Oxygen levels in biological tissue or systems can be measured by the phosphorescence quenching method using phosphorescent porphyrin probes, also referred to as a dendritic oxygen probes, with controllable quenching parameters and defined biodistributions. Provided are a “next generation” of oxygen sensors with substantially improved phosphorescence emission for better imaging capabilities, ease of use, increasing the quantum efficiency (phosphorescence intensity) and extending their range of applicability including constructing a class of oxygen sensors for making measurements in organic media. In addition, provided are methods for synthesizing new porphyrin constructs in which the porphyrin is made less flexible and more planar, changing with decrease internal quenching, and thereby increasing the phosphorescence emission used for oxygen sensing.Type: GrantFiled: January 30, 2017Date of Patent: December 3, 2019Assignee: Oxygen Enterprises, LtdInventors: Sergei A. Vinogradov, David F. Wilson, Tatiana V. Esipova
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Patent number: 10132650Abstract: A wireless power transmitter may include a transmit coil configured to generate a wireless power signal for wireless power transfer, at least one secondary sensing coil configured to generate a signal responsive to a magnetic flux field generated during the wireless power transfer, and control logic configured to detect at least one condition of a wireless power transfer system responsive to detecting distortion in the magnetic flux field from the at least one signal received from the secondary sensing coil. A related method may include generating with a wireless power transmitter a wireless power signal, generating with a plurality of secondary sensing coils one or more signals responsive to a magnetic flux field generated during the wireless power transfer, and detecting at least one condition of a wireless power transfer system responsive to the one or more signals generated by the plurality of secondary sensing coils.Type: GrantFiled: January 22, 2015Date of Patent: November 20, 2018Assignee: Integrated Device Technology, Inc.Inventors: Gustavo J. Mehas, David F. Wilson, Nicholaus W. Smith
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Publication number: 20170137449Abstract: Oxygen levels in biological tissue or systems can be measured by the phosphorescence quenching method using phosphorescent porphyrin probes, also referred to as a dendritic oxygen probes, with controllable quenching parameters and defined biodistributions. Provided are a “next generation” of oxygen sensors with substantially improved phosphorescence emission for better imaging capabilities, ease of use, increasing the quantum efficiency (phosphorescence intensity) and extending their range of applicability including constructing a class of oxygen sensors for making measurements in organic media. In addition, provided are methods for synthesizing new porphyrin constructs in which the porphyrin is made less flexible and more planar, changing with decrease internal quenching, and thereby increasing the phosphorescence emission used for oxygen sensing.Type: ApplicationFiled: January 30, 2017Publication date: May 18, 2017Inventors: Sergei A. Vinogradov, David F. Wilson, Tatiana V. Esipova
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Patent number: 9556213Abstract: Oxygen levels in biological tissue or systems can be measured by the phosphorescence quenching method using phosphorescent porphyrin probes, also referred to as a dendritic oxygen probes, with controllable quenching parameters and defined biodistributions. Provided are a “next generation” of oxygen sensors with substantially improved phosphorescence emission for better imaging capabilities, ease of use, increasing the quantum efficiency (phosphorescence intensity) and extending their range of applicability including constructing a class of oxygen sensors for making measurements in organic media. In addition, provided are methods for synthesizing new porphyrin constructs in which the porphyrin is made less flexible and more planar, changing with decrease internal quenching, and thereby increasing the phosphorescence emission used for oxygen sensing.Type: GrantFiled: February 27, 2013Date of Patent: January 31, 2017Inventors: Sergei A. Vinogradov, David F. Wilson
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Publication number: 20160218559Abstract: A wireless power transmitter may include a transmit coil configured to generate a wireless power signal for wireless power transfer, at least one secondary sensing coil configured to generate a signal responsive to a magnetic flux field generated during the wireless power transfer, and control logic configured to detect at least one condition of a wireless power transfer system responsive to detecting distortion in the magnetic flux field from the at least one signal received from the secondary sensing coil. A related method may include generating with a wireless power transmitter a wireless power signal, generating with a plurality of secondary sensing coils one or more signals responsive to a magnetic flux field generated during the wireless power transfer, and detecting at least one condition of a wireless power transfer system responsive to the one or more signals generated by the plurality of secondary sensing coils.Type: ApplicationFiled: January 22, 2015Publication date: July 28, 2016Inventors: Gustavo J. Mehas, David F. Wilson, Nicholaus W. Smith
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Publication number: 20160087471Abstract: A wireless status indicator for a wireless power transfer system includes an object configured to wirelessly generate power responsive to a magnetic flux field of a wireless power transmitter and to generate a status indication of the wireless power transfer system. A wireless power transfer system comprises a wireless power status indicator configured to wirelessly generate power responsive to a wireless power signal and to generate a status indication of the wireless power transfer system. A related method includes generating power by a wireless status indicator and generating a status indication responsive to a wireless power signal. The wireless status indicator is a separate stand-alone device than a wireless power transmitter and wireless power receiver involved in the wireless power transfer. The status indication corresponds to a state of wireless power transfer.Type: ApplicationFiled: September 23, 2014Publication date: March 24, 2016Inventor: David F. Wilson
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Patent number: 9044179Abstract: Provided is a durable oxygen sensitive probe of sufficient strength to withstand direct tissue pressures in vivo, the probe comprising a sensor chamber within a biocompatible, gas-permeable membrane containing an oxygen sensitive analyte solution producing oxygen quenchable phosphorescence when excited. Further provided is a tissue oxygen detection and measurement system comprising the probe, and methods for use of the probe and the system to directly, rapidly and accurately measure tissue oxygen levels in a patient without reliance on blood vessels or fluid protection of the probe.Type: GrantFiled: January 4, 2007Date of Patent: June 2, 2015Assignee: The Trustees of the University of PennslyvaniaInventors: David F. Wilson, Gregory J. Schears
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Publication number: 20130224874Abstract: Oxygen levels in biological tissue or systems can be measured by the phosphorescence quenching method using phosphorescent porphyrin probes, also referred to as a dendritic oxygen probes, with controllable quenching parameters and defined biodistributions. Provided are a “next generation” of oxygen sensors with substantially improved phosphorescence emission for better imaging capabilities, ease of use, increasing the quantum efficiency (phosphorescence intensity) and extending their range of applicability including constructing a class of oxygen sensors for making measurements in organic media. In addition, provided are methods for synthesizing new porphyrin constructs in which the porphyrin is made less flexible and more planar, changing with decrease internal quenching, and thereby increasing the phosphorescence emission used for oxygen sensing.Type: ApplicationFiled: February 27, 2013Publication date: August 29, 2013Inventors: Sergei A. Vinogradov, David F. Wilson
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Patent number: 8135449Abstract: A method of real-time imaging of dissolved oxygen concentration, comprising adding an oxygen-quenched phosphorescent composition to a sample, exciting phosphorescence in the composition by illuminating the sample with pulses of light, detecting phosphorescence intensity as a function of position in the sample at first and second times following exciting pulses of light, determining oxygen concentration from the phosphorescence detected at the first and second times, generating an image of the oxygen concentration as a function of position, and repeating the exciting, detecting, determining, and image generating steps to produce a series of images showing the oxygen concentration varying over time.Type: GrantFiled: August 26, 2005Date of Patent: March 13, 2012Assignee: Oxygen Enterprises, Ltd.Inventors: David F. Wilson, Sergei A. Vinogradov
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Publication number: 20120058919Abstract: Provided is a method and growth chamber for the rapid and accurate detection of growth and metabolism of a cellular microorganism in isolation within one or a plurality of wells containing a population of microorganisms in a non-liquid, culture medium, wherein the cells are distributed at not greater than one cell per well at plating. Further provided is a gelled culture medium containing a non-toxic, water-soluble, phosphorescent compound which measures oxygen content (partial oxygen pressure) of a microorganism also contained therein, by oxygen-dependent quenching of phosphorescence; or the gel contains a fluorescent pH indicator that demonstrates growth of the microorganism by pH-dependent intensity change or wavelength shift in the emission spectrum.Type: ApplicationFiled: October 13, 2011Publication date: March 8, 2012Inventor: David F. Wilson
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Patent number: 7992573Abstract: A system is provided comprising an optically-guided catheter having a proximal end, a distal end, and at least one lumen. A light-emitting means is coupled to the catheter, the catheter is inserted into place in the patient, and light is emitted as a point or points from a selected location, usually the distal tip, of the catheter to which it is coupled. The system further comprises an external detection device that detects the transdermally projected light, emitted by the light-emitting point from within the patient, thereby indicating precise placement of the catheter within the patient.Type: GrantFiled: October 4, 2005Date of Patent: August 9, 2011Assignee: The Trustees of the University of PennsylvaniaInventors: David F. Wilson, Gregory J. Schears
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Publication number: 20110105869Abstract: Provided is a durable tissue pH/pCO2 and/or tissue oxygen sensitive probe of sufficient strength to withstand direct tissue pressures in vivo, the probe comprising one or more sensor chambers within a biocompatible, gas-permeable membrane containing together in a single chamber, or in separate chambers, respectively, a pH sensitive fluorophor from which pCO2 level(s) are calculated when the fluorophor is excited and the resulting fluorescence is measured and/or an oxygen sensitive phosphor solution producing oxygen quenchable phosphorescence when excited. Further provided is a tissue pH/pCO2 and/or tissue oxygen detection and measurement system comprising the probe, and methods for use of the probe and the system to directly, rapidly and accurately measure tissue pH/pCO2 and/or tissue oxygen levels in a patient without reliance on blood vessels or fluid protection of the probe.Type: ApplicationFiled: November 9, 2010Publication date: May 5, 2011Applicant: The Trustees of the University of PennsylvaniaInventors: David F. Wilson, Sergei Vinogradov
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Patent number: 7937109Abstract: A mobile computing device comprises a housing, a memory, a first current source driver, an audio interface and a processing circuit. The housing is configured to be held in a hand during use. The memory is configured to store audio data. The audio interface comprises a first terminal, a second terminal, and a common ground terminal for the first and second terminals. The processing circuit is configured to control the first current source driver to provide a first audio signal on the first terminal based on the audio data.Type: GrantFiled: January 24, 2008Date of Patent: May 3, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventor: David F. Wilson
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Patent number: 7925307Abstract: An electronic device comprises an earpiece speaker, a loudspeaker, and a processing circuit. The processing circuit is configured to receive a wireless telephony audio signal, to separate the audio signal into a first portion and a second portion, the first portion having higher frequency components than the second portion, wherein the processing circuit is configured to provide the first portion of the audio signal to the earpiece speaker and the second portion of the audio signal to the loudspeaker.Type: GrantFiled: October 31, 2006Date of Patent: April 12, 2011Assignee: Palm, Inc.Inventors: Ronald J. Horowitz, David F. Wilson
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Patent number: 7757695Abstract: Light from a small laser diode is inserted in a distal end of a catheter and passed through an optical fiber that is either included in the lumen or incorporated into the wall of an invasive catheter tube during manufacture. The light is selected to be of a wavelength that is minimally absorbed by tissue, preferably in the range from about 620 nm to 1100 nm. 780 nm is preferably used as this is where the tissue absorption is near a minimum. The light passes out the end of the fiber (at the proximal end of the catheter) and through the tissue to the outside of the patient's skin where it is measured. The light pattern is observed by night vision goggles that filter out other frequencies of light. The detected light permits location of the end of the fiber, the positional accuracy depending on the thickness of tissue between the fiber tip and the exterior of the body. The method is highly accurate for small children and for catheters within a few centimeters of the skin surface of adults.Type: GrantFiled: September 7, 2007Date of Patent: July 20, 2010Assignee: The Trustees of the University of PennsylvaniaInventors: David F. Wilson, Gregory J. Schears
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Publication number: 20090280522Abstract: Provided is a method and system for the rapid and accurate detection of growth and metabolism of a cellular microorganism in a population of microorganisms in a non-liquid, culture medium. Further provided is a gelled culture medium containing a non-toxic, water-soluble, phosphorescent compound which measures oxygen content (partial pressure) of a microorganism also contained therein, by oxygen-dependent quenching of phosphorescence; or the gel contains a fluorescent pH indicator that demonstrates growth of the microorganism by pH-dependent intensity change or wavelength shift in the emission spectrum. Further provided is a system and method for killing undesirable microorganisms or colonies in the culture medium without harming the surrounding microorganisms.Type: ApplicationFiled: July 16, 2009Publication date: November 12, 2009Applicant: Oxygen Enterprises, LTDInventor: David F. Wilson