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  • Inventor(s):
    Michael Niemier, Mohammad T. Alam, Gary H. Bernstein, Xiaobo Sharon Hu, Wolfgang Porod
    Patent Number:
    US 8058906 B2
    Description:

    A non-majority magnetic logic gate device for use in constructing compact and power efficient logical magnetic arrays is presented. The non-majority magnetic logic gate device includes a substrate, symmetrically aligned magnetic islands (SAMIs), at least one misaligned magnetic island (MAMI), magnetic field inputs (MFIs), and at least one magnetic field output (MFO). The SAMIs and MAMI are electrically isolated from each other but are magnetically coupled to one another through their respecti…

    Date Issued:
    2011-11-15
    Resource Type
    Patent
  • Inventor(s):
    Zhou Yu, Bruno Kristiaan Bernard De Man, Jean-Baptiste Thibault, Debashish Pal, Lin Fu, Charles A. Bouman, Ken D. Sauer, Sathish Ramani, Jeffrey Allen Fessler, Somesh Srivastava
    Patent Number:
    US 8885975 B2
    Description:

    A method is provided for reconstructing an image of an object that includes image elements. The method includes accessing measurement data associated with the image elements, introducing an auxiliary variable to transform an original problem of reconstructing the image to a constrained optimization problem, and solving the constrained optimization problem using a method of multipliers to create a sequence of sub-problems and solve the sequence of sub-problems. Solving the sequence of sub-prob…

    Date Issued:
    2014-11-11
    Resource Type
    Patent
  • Inventor(s):
    Gary H. Bernstein, Patrick Fay, Wolfgang Porod, Qing Liu
    Patent Number:
    US 8021965 B2
    Description:

    The present invention provides a quilt packaging system for microchip, a method for making such a quilt packaging system, microchips that may be used in a such a quilt packaging system, and methods for making such microchips.

    Date Issued:
    2011-09-20
    Resource Type
    Patent
  • Inventor(s):
    Charles A. Bouman, Ken D. Sauer, Jean-Baptiste Thibault, Zhou Yu
    Patent Number:
    US 8135186 B2
    Description:

    Disclosed is an imaging system including a source generating an x-ray beam, a detector array receiving the x-ray beam and generating projection data, a translatable table configured for disposal of an object thereon and operable to translate in relation to the source and the detector array, the source and the detector array rotating about the translatable table to scan the object, and an image reconstructor electrically coupled to the detector array and configured to reconstruct an image in r…

    Date Issued:
    2012-03-13
    Resource Type
    Patent
  • Inventor(s):
    Jean-Baptiste Thibault, Jiang Hsieh, Bruno Kristiaan Bernard De Man, Samit Kumar Basu, Zhou Yu, Ken D. Sauer, Charles A. Bouman
    Patent Number:
    US 8175115 B2
    Description:

    A method for reconstructing an image of an object, the image comprising a plurality of image elements, is disclosed. The method includes accessing image data associated with the plurality of image elements, applying a first algorithm to the plurality of image elements, selecting a spatially non-homogenous set of the plurality of image elements, and applying an iterative algorithm to the set of image elements to reduce an amount of time necessary for reconstructing the image, or to improve an …

    Date Issued:
    2012-05-08
    Resource Type
    Patent
  • Inventor(s):
    Logeshwaran Vijayan, Sundaram Vanka, Partha Sarathy Murali, Phanimithra Gangalakurthi
    Patent Number:
    US 8031762 B2
    Description:

    A process for equalizing streams of OFDM subcarrier data computes the noise variance for each stream, and forms a stream weighting coefficient by equalizing the noise variance, such that for a first stream having a noise variance .sigma..sub.1 and a second stream having a noise variance of .sigma..sub.2, the first stream is scaled by .times..sigma..sigma..sigma. ##EQU00001## and the second stream is scaled by .times..sigma..sigma..sigma. ##EQU00002##

    Date Issued:
    2011-10-04
    Resource Type
    Patent
  • Inventor(s):
    Ken D. Sauer, Charles A. Bouman, Jiang Hsieh, Jean-Baptiste Thibault
    Patent Number:
    US 7983462 B2
    Description:

    A method for improving quality of an image is described. The method includes reconstructing a first image of a sample volume, segmenting the first image to generate a first region and a second region, reconstructing a second image of the sample volume, and generating a final image from a combination of the segmentation, the first image, and the second image.

    Date Issued:
    2011-07-19
    Resource Type
    Patent
  • Inventor(s):
    Logeshwaran Vijayan, Sundaram Vanka, Partha Sarathy Murali, Phanimithra Gangalakurthi
    Patent Number:
    US 8107518 B2
    Description:

    A process for equalizing streams of OFDM subcarrier data computes the noise variance for each stream, and forms a stream weighting coefficient by equalizing the noise variance, such that for a first stream having a noise variance .sigma..sub.1 and a second stream having a noise variance of .sigma..sub.2, the first stream is scaled by .times..sigma..sigma..sigma. ##EQU00001## and the second stream is scaled by .times..sigma..sigma..sigma. ##EQU00002##

    Date Issued:
    2012-01-31
    Resource Type
    Patent
  • Inventor(s):
    Jean-Baptiste Thibault, Ken D. Sauer, Charles A. Bouman, Jiang Hsieh
    Patent Number:
    US 7272205 B2
    Description:

    A method for calculating an element of a projection includes calculating an element A.sub.i,j of a projection matrix using at least two different rays through a voxel.

    Date Issued:
    2007-09-18
    Resource Type
    Patent
  • Inventor(s):
    Ken D. Sauer, Jean-Baptiste Thibault, Charles A. Bouman, Jiang Hsieh
    Patent Number:
    US 7251306 B2
    Description:

    A method of reconstructing an image includes performing an iterative CT X-ray image reconstruction using a model including a point spread function (PSF) to reconstruct an image.

    Date Issued:
    2007-07-31
    Resource Type
    Patent
  • Inventor(s):
    Jiang Hsieh, Jean-Baptiste Thibault, Ken D. Sauer, Charles A. Bouman
    Patent Number:
    US 7583780 B2
    Description:

    A method for reconstructing an image in a tomographic imaging system is described. The method includes improving a spatial resolution of the image by iteratively reconstructing the image.

    Date Issued:
    2009-09-01
    Resource Type
    Patent
  • Inventor(s):
    Jean-Baptiste Thibault, Charles A. Bouman, Jeffrey Allen Fessler, Ken D. Sauer
    Patent Number:
    US 7885371 B2
    Description:

    A method and system for image reconstruction of data acquired by a device such as computed tomography is provided. The method and system use a multi-stage statistical iterative reconstruction techniques to provide a three dimensional representation of the scanned object. In one embodiment, the first stage uses a projection-based reconstruction technique, such as Ordered Subset (OS) to converge on a solution for low frequency portion of the image. A subsequent stage uses a voxel-based reconstr…

    Date Issued:
    2011-02-08
    Resource Type
    Patent