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).

  • Patent number: 9018802
    Abstract: 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 pulsed
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: April 28, 2015
    Assignee: National Research Council of Canada
    Inventors: Jian Sun, Weiman Qian, Wei Qu, Shiqiang Hui
  • Patent number: 8685575
    Abstract: 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: Grant
    Filed: October 15, 2010
    Date of Patent: April 1, 2014
    Assignee: National Research Council of Canada
    Inventors: Vladimir Neburchilov, Haijiang Wang, Wei Qu
  • Patent number: 8488013
    Abstract: 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: Grant
    Filed: January 12, 2009
    Date of Patent: July 16, 2013
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Yuanyuan Jia, Wei Qu
  • Publication number: 20130004881
    Abstract: 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 of
    Type: Application
    Filed: March 15, 2011
    Publication date: January 3, 2013
    Inventors: Nima Shaigan, Wei Qu
  • Publication number: 20120202126
    Abstract: 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: Application
    Filed: October 15, 2010
    Publication date: August 9, 2012
    Inventors: Vladimir Neburchilov, Haijiang Wang, Wei Qu
  • Patent number: 8204289
    Abstract: 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: Grant
    Filed: January 19, 2009
    Date of Patent: June 19, 2012
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Wei Qu, Yuanyuan Jia
  • Publication number: 20120119591
    Abstract: 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 pulsed
    Type: Application
    Filed: July 6, 2010
    Publication date: May 17, 2012
    Inventors: Jian Sun, Weiman Qian, Wei Qu, Shiqiang Hui
  • Patent number: 8144957
    Abstract: 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: Grant
    Filed: December 1, 2008
    Date of Patent: March 27, 2012
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Wei Qu, Yuanyuan Jia
  • Patent number: 8114039
    Abstract: 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: Grant
    Filed: September 2, 2008
    Date of Patent: February 14, 2012
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Wei Qu
  • Patent number: 8077953
    Abstract: 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: Grant
    Filed: February 5, 2008
    Date of Patent: December 13, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Wei Qu, Sukhveer Singh, Michael J. Keller
  • Publication number: 20110105931
    Abstract: 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: Application
    Filed: October 8, 2008
    Publication date: May 5, 2011
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Wei Qu, Jinghua Chen, Yuanyuan Jia, Sukhveer Singh, Michael J. Keller
  • Publication number: 20090279765
    Abstract: 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: Application
    Filed: January 19, 2009
    Publication date: November 12, 2009
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Wei Qu, Yuanyuan Jia
  • Publication number: 20090190813
    Abstract: 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: Application
    Filed: December 1, 2008
    Publication date: July 30, 2009
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Wei Qu, Yuanyuan Jia
  • Publication number: 20090189988
    Abstract: 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: Application
    Filed: January 12, 2009
    Publication date: July 30, 2009
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Yuanyuan Jia, Wei Qu
  • Publication number: 20090118654
    Abstract: 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: Application
    Filed: September 2, 2008
    Publication date: May 7, 2009
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventor: Wei Qu
  • Publication number: 20090105578
    Abstract: 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: Application
    Filed: September 3, 2008
    Publication date: April 23, 2009
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventor: Wei Qu
  • Publication number: 20090028412
    Abstract: 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: Application
    Filed: February 5, 2008
    Publication date: January 29, 2009
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Wei Qu, Sukhveer Singh, Michael J. Keller
  • Publication number: 20080154555
    Abstract: 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: Application
    Filed: October 13, 2006
    Publication date: June 26, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Wei Qu, Dan Schonfeld, Magdi A. Mohamed
  • Publication number: 20080089578
    Abstract: 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: Application
    Filed: December 21, 2006
    Publication date: April 17, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Wei Qu, Dan Schonfield, Magdi A. Mohamed
  • Publication number: 20080033900
    Abstract: 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: Application
    Filed: August 1, 2007
    Publication date: February 7, 2008
    Inventors: Yan Zhang, Wei Qu