Patents by Inventor Wei Qu
Wei Qu 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: 9018802Abstract: The invention disclosed is a pulsed power supply for plasma electrolytic deposition (PED) for generating pulsed direct current for controlled interruption of the arcing process of PED, comprising a power distribution and relay logic (PDRL) module; a positive AC/DC (alternating current/direct current) power module; a negative AC/DC power module; a power pulse output module; and a computer control and data acquisition module, wherein the power pulse output module further comprises a pulse controller and an insulated-gate bipolar transistor (IGBT) power switch, and wherein the PDRL module is operatively coupled to both the positive and negative AC/DC power modules and the respective positive and negative power modules are then operatively coupled to both the power pulse output module and the computer control and data acquisition module, and wherein the computer control and data acquisition module controls both the respective positive and negative power modules and the power pulse output module to generate pulsedType: GrantFiled: July 6, 2010Date of Patent: April 28, 2015Assignee: National Research Council of CanadaInventors: Jian Sun, Weiman Qian, Wei Qu, Shiqiang Hui
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Patent number: 8685575Abstract: The invention disclosed is a catalyst composition for an air cathode for use in an electrochemical cell, in particular in alkaline electrolyte metal-air e.g. zinc-air, fuel cells. The catalyst composition comprises an active material CoTMMP and silver, supported on carbon wherein the ratio of silver to CoTMPP is 1:1 to 2.4:1. Optional ingredients include a hydrophobic and a hydrophobic bonding agent, MnO2, WC/Co or both. The catalyst composition is supported on microporous support layer and nickel foam or mesh to form an air cathode.Type: GrantFiled: October 15, 2010Date of Patent: April 1, 2014Assignee: National Research Council of CanadaInventors: Vladimir Neburchilov, Haijiang Wang, Wei Qu
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Patent number: 8488013Abstract: A system enables secure, safe remote access and control of stand-alone medical imaging systems whilst maintaining physical separation and independence from the medical imaging systems, to prevent medical system infection by a software virus and data corruption. A system provides remote control and interaction with a medical imaging system and includes a transmitter. The transmitter wirelessly transmits command signals via a first secure communication link to a receiver unit coupled to a medical imaging system. The command signals enable control of the medical imaging system from a remote location. At least one computer receives video data from a camera located near the medical imaging system and monitors medical images and associated data presented on a display of the medical imaging system in response to command signals wirelessly communicated to the receiver unit. A monitor presents the received video data to a user.Type: GrantFiled: January 12, 2009Date of Patent: July 16, 2013Assignee: Siemens Medical Solutions USA, Inc.Inventors: Yuanyuan Jia, Wei Qu
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Publication number: 20130004881Abstract: The invention disclosed relates to an oxidized metal matrix composite coated substrate, comprising a substrate made of a material selected from the group consisting of a chromia-forming Fe, Ni and/or Co based alloy containing an amount of Cr ranging from 16 to 30 wt %, and an oxide-dispersion strengthened Cr-based alloy and a plain Cr-based alloy, and an oxidized metal matrix composite coating comprising at least two metals and reactive element oxide particles in the form of a tri-layer scale on the substrate surface comprising an inner chromia layer, an intermediate layer of a spinel solid solution formed by Cr and one or more of the deposited metals selected from the group consisting of Ni, Co, Cu, Mn, Fe and Zn and a mixture thereof, and an electrically conductive top layer comprising oxides of one or more deposited metals selected from the group consisting of Ni, Co, Cu, Fe, Mn, Zn and a mixture thereof, which is substantially free from Cr ions, and wherein one or more of such layers contain particles ofType: ApplicationFiled: March 15, 2011Publication date: January 3, 2013Inventors: Nima Shaigan, Wei Qu
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Publication number: 20120202126Abstract: The invention disclosed is a catalyst composition for an air cathode for use in an electrochemical cell, in particular in alkaline electrolyte metal-air e.g. zinc-air, fuel cells. The catalyst composition comprises an active material CoTMMP and silver, supported on carbon wherein the ratio of silver to CoTMPP is 1:1 to 2.4:1. Optional ingredients include a hydrophobic and a hydrophobic bonding agent, MnO2, WC/Co or both. The catalyst composition is supported on microporous support layer and nickel foam or mesh to form an air cathode.Type: ApplicationFiled: October 15, 2010Publication date: August 9, 2012Inventors: Vladimir Neburchilov, Haijiang Wang, Wei Qu
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Patent number: 8204289Abstract: A system identifies a particular image associated with a particular cardiac characteristic from within a sequence of cardiac images including image noise artifacts and obtained over a heart beat cycle. The system comprises at least one repository including, first data comprising heart cycle information derived from ECG data, second data comprising data representing multiple images acquired over at least one heart cycle and third data comprising data associated with timing of contrast agent flow. An image data processor identifies a particular image exhibiting a particular cardiac characteristic from within a sequence of cardiac images by processing the first, second and third data to identify an image having a substantially maximum likelihood of exhibiting the particular cardiac characteristic. A storage processor retrieves data representing the particular image from storage.Type: GrantFiled: January 19, 2009Date of Patent: June 19, 2012Assignee: Siemens Medical Solutions USA, Inc.Inventors: Wei Qu, Yuanyuan Jia
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Publication number: 20120119591Abstract: The invention disclosed is a pulsed power supply for plasma electrolytic deposition (PED) for generating pulsed direct current for controlled interruption of the arcing process of PED, comprising a power distribution and relay logic (PDRL) module; a positive AC/DC (alternating current/direct current) power module; a negative AC/DC power module; a power pulse output module; and a computer control and data acquisition module, wherein the power pulse output module further comprises a pulse controller and an insulated-gate bipolar transistor (IGBT) power switch, and wherein the PDRL module is operatively coupled to both the positive and negative AC/DC power modules and the respective positive and negative power modules are then operatively coupled to both the power pulse output module and the computer control and data acquisition module, and wherein the computer control and data acquisition module controls both the respective positive and negative power modules and the power pulse output module to generate pulsedType: ApplicationFiled: July 6, 2010Publication date: May 17, 2012Inventors: Jian Sun, Weiman Qian, Wei Qu, Shiqiang Hui
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Patent number: 8144957Abstract: An anatomical feature boundary identification system for use in processing medical images including X-ray images having a substantial noise content, employs at least one repository. The at least one repository stores data representing multiple different candidate template boundary shapes for individual particular anatomical features of multiple different types of anatomical features. A computation processor coupled to the at least one repository, determines a converged boundary shape of a particular anatomical feature by iteratively substantially minimizing a first difference between, data representing a weighted combination of multiple different candidate template boundary shapes of a particular anatomical feature and data representing a boundary shape of the particular anatomical feature derived from image data of the particular anatomical feature.Type: GrantFiled: December 1, 2008Date of Patent: March 27, 2012Assignee: Siemens Medical Solutions USA, Inc.Inventors: Wei Qu, Yuanyuan Jia
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Patent number: 8114039Abstract: A system and method are disclosed for providing a ventilated orthotic cranioplasty helmet for treating positional plagiocephaly in infants. Specifically, a system and method are disclosed in which patient-specific parameters such as head size, patient age, degree of patient sweating, diameter of patient's hair, average length of patient's hair, and sweat range are input into a computer implemented algorithm along with a user-proposed ventilation hole array to determine an optimal ventilation hole arrangement. The computer may be connected either directly or indirectly to an automated hole drilling machine to drill the hole array in the specified portion of the helmet. The same computer implemented algorithm can be used to revise the ventilation hole array to accommodate changes in patient physiology during treatment to thereby achieve an optimal ventilation hole design throughout the treatment process.Type: GrantFiled: September 2, 2008Date of Patent: February 14, 2012Assignee: Siemens Medical Solutions USA, Inc.Inventor: Wei Qu
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Patent number: 8077953Abstract: End-diastolic and end-systolic image frames are automatically selected on a real-time basis from a sequence of X-ray ventricular angiogram images by modeling the angiogram images by a dynamic graphical model and estimating a posterior probability density of the ventricular area in each angiogram image frame using Bayesian probability density propagation and adaptive background modeling. Then, a variation curve plot of expectation values of the posterior probability density of the ventricular area of each angiogram image frame is generated in which peaks and valleys in the variation curve correspond to end-diastolic and end-systolic angiogram image frames, respectively.Type: GrantFiled: February 5, 2008Date of Patent: December 13, 2011Assignee: Siemens Medical Solutions USA, Inc.Inventors: Wei Qu, Sukhveer Singh, Michael J. Keller
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Publication number: 20110105931Abstract: A system uses integrated spatio-temporal analysis in X-ray angiography, for example, by using spatial information within each image frame and temporal information between image frames to provide robust and accurate estimation of stroke area and volume, two and three dimensional ejection fraction and to accommodate patient heart variation. A system determines patient heart related parameters for use in patient heart imaging examination. An image data processor processes data representing multiple cardiac images of a patient over multiple heart beat cycles of the patient to derive data representing a distribution curve of a heart section area over multiple heart beat cycle times and indicating heart section area change over a heart beat cycle. An area processor determines a heart section area in response to user command. Also a computation processor determines a heart function parameter in response to the determined heart section area and the indicated heart section area change.Type: ApplicationFiled: October 8, 2008Publication date: May 5, 2011Applicant: Siemens Medical Solutions USA, Inc.Inventors: Wei Qu, Jinghua Chen, Yuanyuan Jia, Sukhveer Singh, Michael J. Keller
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Publication number: 20090279765Abstract: A system identifies a particular image associated with a particular cardiac characteristic from within a sequence of cardiac images including image noise artifacts and obtained over a heart beat cycle. The system comprises at least one repository including, first data comprising heart cycle information derived from ECG data, second data comprising data representing multiple images acquired over at least one heart cycle and third data comprising data associated with timing of contrast agent flow. An image data processor identifies a particular image exhibiting a particular cardiac characteristic from within a sequence of cardiac images by processing the first, second and third data to identify an image having a substantially maximum likelihood of exhibiting the particular cardiac characteristic. A storage processor retrieves data representing the particular image from storage.Type: ApplicationFiled: January 19, 2009Publication date: November 12, 2009Applicant: Siemens Medical Solutions USA, Inc.Inventors: Wei Qu, Yuanyuan Jia
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Publication number: 20090190813Abstract: An anatomical feature boundary identification system for use in processing medical images including X-ray images having a substantial noise content, employs at least one repository. The at least one repository stores data representing multiple different candidate template boundary shapes for individual particular anatomical features of multiple different types of anatomical features. A computation processor coupled to the at least one repository, determines a converged boundary shape of a particular anatomical feature by iteratively substantially minimizing a first difference between, data representing a weighted combination of multiple different candidate template boundary shapes of a particular anatomical feature and data representing a boundary shape of the particular anatomical feature derived from image data of the particular anatomical feature.Type: ApplicationFiled: December 1, 2008Publication date: July 30, 2009Applicant: Siemens Medical Solutions USA, Inc.Inventors: Wei Qu, Yuanyuan Jia
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Publication number: 20090189988Abstract: A system enables secure, safe remote access and control of stand-alone medical imaging systems whilst maintaining physical separation and independence from the medical imaging systems, to prevent medical system infection by a software virus and data corruption. A system provides remote control and interaction with a medical imaging system and includes a transmitter. The transmitter wirelessly transmits command signals via a first secure communication link to a receiver unit coupled to a medical imaging system. The command signals enable control of the medical imaging system from a remote location. At least one computer receives video data from a camera located near the medical imaging system and monitors medical images and associated data presented on a display of the medical imaging system in response to command signals wirelessly communicated to the receiver unit. A monitor presents the received video data to a user.Type: ApplicationFiled: January 12, 2009Publication date: July 30, 2009Applicant: Siemens Medical Solutions USA, Inc.Inventors: Yuanyuan Jia, Wei Qu
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Publication number: 20090118654Abstract: A system and method are disclosed for providing a ventilated orthotic cranioplasty helmet for treating positional plagiocephaly in infants. Specifically, a system and method are disclosed in which patient-specific parameters such as head size, patient age, degree of patient sweating, diameter of patient's hair, average length of patient's hair, and sweat range are input into a computer implemented algorithm along with a user-proposed ventilation hole array to determine an optimal ventilation hole arrangement. The computer may be connected either directly or indirectly to an automated hole drilling machine to drill the hole array in the specified portion of the helmet. The same computer implemented algorithm can be used to revise the ventilation hole array to accommodate changes in patient physiology during treatment to thereby achieve an optimal ventilation hole design throughout the treatment process.Type: ApplicationFiled: September 2, 2008Publication date: May 7, 2009Applicant: Siemens Medical Solutions USA, Inc.Inventor: Wei Qu
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Publication number: 20090105578Abstract: An interactive medical user interface system presents a user interactive image window, including a distribution curve of an organ section area over a heart beat cycle time and supports a desired clinical workflow. An interactive medical image processing and user interface system for use in patient organ imaging includes an image data processor. The image data processor processes data representing multiple images of an organ of a patient over the heart beat cycle of the patient to derive data representing a distribution curve of an organ section area over a heart beat cycle time. A user interface generates data representing a composite user interface display image including, a first user interactive image window presenting the distribution curve and a second image window presenting an image of the organ corresponding to a location on the distribution curve interactively selected by a user via the first user interactive image window.Type: ApplicationFiled: September 3, 2008Publication date: April 23, 2009Applicant: Siemens Medical Solutions USA, Inc.Inventor: Wei Qu
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Publication number: 20090028412Abstract: End-diastolic and end-systolic image frames are automatically selected on a real-time basis from a sequence of X-ray ventricular angiogram images by modeling the angiogram images by a dynamic graphical model and estimating a posterior probability density of the ventricular area in each angiogram image frame using Bayesian probability density propagation and adaptive background modeling. Then, a variation curve plot of expectation values of the posterior probability density of the ventricular area of each angiogram image frame is generated in which peaks and valleys in the variation curve correspond to end-diastolic and end-systolic angiogram image frames, respectively.Type: ApplicationFiled: February 5, 2008Publication date: January 29, 2009Applicant: Siemens Medical Solutions USA, Inc.Inventors: Wei Qu, Sukhveer Singh, Michael J. Keller
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Publication number: 20080154555Abstract: Automatic use (102) of a disjoint probabilistic analysis of captured temporally parsed data (101) regarding at least a first and a second item serves to facilitate disambiguating state information as pertains to the first item from information as pertains to the second item. This can also comprise, for example, using a joint probability as pertains to the temporally parsed data for the first item and the temporally parsed data for the second item, by using, for example, a Bayesian-based probabilistic analysis of the temporally parsed data.Type: ApplicationFiled: October 13, 2006Publication date: June 26, 2008Applicant: MOTOROLA, INC.Inventors: Wei Qu, Dan Schonfeld, Magdi A. Mohamed
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Publication number: 20080089578Abstract: Temporally parsed data regarding at least a first item is captured (101). This temporally parsed data comprises data that corresponds to substantially simultaneous sequential samples of the first item with respect to at least a first and a second different points of view. Conditional probabilistic analysis of at least some of this temporally parsed data is then automatically used (102) to disambiguate state information as pertains to this first item. This conditional probabilistic analysis comprises analysis of at least some of the temporally parsed data as corresponds in a given sample to both the first point of reference and the second point of reference.Type: ApplicationFiled: December 21, 2006Publication date: April 17, 2008Applicant: MOTOROLA, INC.Inventors: Wei Qu, Dan Schonfield, Magdi A. Mohamed
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Publication number: 20080033900Abstract: An autonomic performance tuning system with a fuzzy control model is provided for autonomic tuning the number of threads in application server at runtime. It dynamically monitors and measures behaviours of an application server, feeds these measures into the fuzzy control model and uses the results derived from the fuzzy control model to adaptively tune the number of threads in the application server. This process is executed in a feedback-loop manner to provide optimal performance at all time. It frees administrators from manually tuning the number of threads and enables application server self-tuning and self-optimization.Type: ApplicationFiled: August 1, 2007Publication date: February 7, 2008Inventors: Yan Zhang, Wei Qu