Patents by Inventor Dev Sharma

Dev Sharma 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).

  • Publication number: 20220172410
    Abstract: An apparatus for incremental motion correction in medical imaging. The apparatus for motion correction in magnetic resonance imaging includes processing circuitry configured to estimate an intermediate image from a first section of k-space, the first section of the k-space corresponding to acquisition time points within a magnetic resonance scan of a subject, the corresponding acquisition time points within the magnetic resonance scan being associated with shots of the k-space determined to have minimal motion, estimate motion parameters of a second section of the k-space using the estimated intermediate image, combine data from the first section of the k-space with data from the second section of the k-space according to the estimated motion parameters, and reconstruct the combined data of the k-space to generate a final image.
    Type: Application
    Filed: December 2, 2020
    Publication date: June 2, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Andrew J. WHEATON, Anuj SHARMA, Samir Dev SHARMA
  • Publication number: 20210365800
    Abstract: A computing apparatus including a memory storing at least one instruction; and at least one processor configured to execute the at least one instruction to: obtain terminal user property information based on data received from a terminal and a knowledge graph; and compare the terminal user property information with content property information to search for a potential customer.
    Type: Application
    Filed: May 20, 2021
    Publication date: November 25, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Rajasimhan BASKAR, Sachin dev SHARMA
  • Publication number: 20210315475
    Abstract: An apparatus and method are provided to simultaneously provide good image quality and fast image reconstruction from magnetic resonance imaging (MRI) data by selecting an appropriate value for the regularization parameter used in compressed sensing (CS) image reconstruction. In CS reconstruction a high-resolution image can be reconstructed from randomized undersampled data by imposing sparsity in multi-scale transformation (e.g., wavelet) domain. Further, in the transformation domain, a threshold can be determined between signal and noise levels of the transform coefficients. A regularization parameter based on this threshold scales the regularization term, which imposes sparsity, relative to the data fidelity term in an objective function, thereby balancing the tradeoff between noise and smoothing.
    Type: Application
    Filed: May 6, 2021
    Publication date: October 14, 2021
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Andrew James WHEATON, Antonios MATAKOS, Samir Dev SHARMA
  • Patent number: 11064901
    Abstract: An apparatus and method are provided to simultaneously provide good image quality and fast image reconstruction from magnetic resonance imaging (MRI) data by selecting an appropriate value for the regularization parameter used in compressed sensing (CS) image reconstruction. In CS reconstruction a high-resolution image can be reconstructed from randomized undersampled data by imposing sparsity in multi-scale transformation (e.g., wavelet) domain. Further, in the transformation domain, a threshold can be determined between signal and noise levels of the transform coefficients. A regularization parameter based on this threshold scales the regularization term, which imposes sparsity, relative to the data fidelity term in an objective function, thereby balancing the tradeoff between noise and smoothing.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: July 20, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Andrew James Wheaton, Antonios Matakos, Samir Dev Sharma
  • Patent number: 10884087
    Abstract: A method and apparatuses are provided to perform chemical species separation in magnetic resonance (MR) imaging (MRI). At least three MR images corresponding respectively to different echo times are obtained and represent signals from multiple chemical species including a first species and a second species in a tissue. A plurality of dual-echo pairs is selected from the at least three MR images. For each pair, a set of dual-echo separated images including a B0 field map, a first image for the first species, and a second image for the second species is estimated. An initial set of combined images including at least one of: an initial combined B0 field map, first, and second image is generated by combining at least one of: two or more of the B0 field maps, two or more of the first images, and two or more of the second images.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: January 5, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Samir Dev Sharma
  • Publication number: 20200305756
    Abstract: An apparatus and method are provided to simultaneously provide good image quality and fast image reconstruction from magnetic resonance imaging (MRI) data by selecting an appropriate value for the regularization parameter used in compressed sensing (CS) image reconstruction. In CS reconstruction a high-resolution image can be reconstructed from randomized undersampled data by imposing sparsity in multi-scale transformation (e.g., wavelet) domain. Further, in the transformation domain, a threshold can be determined between signal and noise levels of the transform coefficients. A regularization parameter based on this threshold scales the regularization term, which imposes sparsity, relative to the data fidelity term in an objective function, thereby balancing the tradeoff between noise and smoothing.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 1, 2020
    Applicant: Canon Medical Systems Corporation
    Inventors: Andrew James Wheaton, Antonios Matakos, Samir Dev Sharma
  • Publication number: 20200278406
    Abstract: A method and apparatuses are provided to perform chemical species separation in magnetic resonance (MR) imaging (MRI). At least three MR images corresponding respectively to different echo times are obtained and represent signals from multiple chemical species including a first species and a second species in a tissue. A plurality of dual-echo pairs is selected from the at least three MR images. For each pair, a set of dual-echo separated images including a B0 field map, a first image for the first species, and a second image for the second species is estimated. An initial set of combined images including at least one of: an initial combined B0 field map, first, and second image is generated by combining at least one of: two or more of the B0 field maps, two or more of the first images, and two or more of the second images.
    Type: Application
    Filed: March 1, 2019
    Publication date: September 3, 2020
    Applicant: Canon Medical Systems Corporation
    Inventor: Samir Dev SHARMA
  • Patent number: 9612300
    Abstract: An object-based approach is used to initialize the magnetic field inhomogeneity estimation for chemical species separation, such as water-fat separation, and other imaging applications. For example, a susceptibility distribution in the subject being imaged is estimated from images reconstructed from single-echo or multi-echo k-space data and used to initialize the magnetic field inhomogeneity estimation. This approach can be applied to any complex-based chemical shift encoded chemical species separation technique and to other imaging applications, such as susceptibility-weighted imaging and quantitative susceptibility mapping. The field map can also be used to correct for image distortions and to generate magnetic field shimming values.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: April 4, 2017
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Samir Dev Sharma, Nathan Samuel Artz, Scott Brian Reeder
  • Publication number: 20150145514
    Abstract: An object-based approach is used to initialize the magnetic field inhomogeneity estimation for chemical species separation, such as water-fat separation, and other imaging applications. For example, a susceptibility distribution in the subject being imaged is estimated from images reconstructed from single-echo or multi-echo k-space data and used to initialize the magnetic field inhomogeneity estimation. This approach can be applied to any complex-based chemical shift encoded chemical species separation technique and to other imaging applications, such as susceptibility-weighted imaging and quantitative susceptibility mapping. The field map can also be used to correct for image distortions and to generate magnetic field shimming values.
    Type: Application
    Filed: November 25, 2013
    Publication date: May 28, 2015
    Applicant: Wisconsin Alumni Research Foundation
    Inventors: Samir Dev Sharma, Nathan Samuel Artz, Scott Brian Reeder
  • Patent number: 8756051
    Abstract: Communication network and method for providing communication facilities for a plurality of users. The communication network comprises an announcement generating element (14) for sending network related messages to any of the users. A further network element is connected to the announcement generating element, the further network element being arranged for determining a preferred language for a specific user (10) of the plurality of users, and sending network related messages to the specific user (10) in the preferred language.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: June 17, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Rogier August Caspar Jospeh Noldus, Arvind Dev Sharma, Ulf Ingemar Olsson
  • Patent number: 7886238
    Abstract: Systems and methods to optimize a layout based on the yield analysis is disclosed. The method includes generating an integrated circuit layout having two or more layers of wire interconnect to form net segments and having one or more via contact layers to couple net segments in the wire interconnect together. The method further includes performing a yield analysis of the net segments in the integrated circuit layout and displaying the net segments with a visual depiction of the yield analysis using multiple levels of opacity to reflect yield scores of the net segments in the integrated circuit layout.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: February 8, 2011
    Assignee: Cadence Design Systems, Inc.
    Inventors: Harsh Dev Sharma, Rajeev Srivastava, Srinivas R. Kommoori, Bharat Bhushan, Mithunjoy Parui, Albert Lee
  • Patent number: 7810063
    Abstract: According to various embodiments of the invention electronic circuit design information can be presented to a designer by determining an electronic circuit comprising at least two gates and by determining a distance of one gate relative to another gate in a stage. A visual indicator for the stage can be calculated based on the distances between at least two gates in the stage. The visual indicator can then be displayed. The visual indicator can be a color and the relative distance can be indicated by brightness, hue or saturation, etc. Alternatively, the visual indicator can be a pattern and the relative distance between at least two gates can be indicated by darkness of the pattern.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: October 5, 2010
    Assignee: Cadence Design Systems, Inc.
    Inventors: Harsh Dev Sharma, Po-chiang Albert Lee, Rajeev Srivastava, Srinivas R. Kommoori, Bharat Bhushan, Mithunjoy Parui
  • Patent number: 7779201
    Abstract: A system and method for determining a disk ownership model to be utilized by a storage system is disclosed. The storage system and method determines the individual disk ownership of each accessible disk to the storage system. If the number of disks utilizing a first ownership model is exceeded, the storage system utilizes the first ownership model. Otherwise, the storage system utilizes a second ownership model.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: August 17, 2010
    Assignee: NetApp, Inc.
    Inventors: Gaurav Agarwal, Susan M. Coatney, Steven S. Watanabe, Alan L. Rowe, Samuel M. Cramer, Gautam Dev Sharma
  • Patent number: 7600208
    Abstract: Disclosed are methods, systems and apparatus for automatically placing decoupling capacitors in an integrated circuit to compensate for voltage drops that might otherwise occur in a power grid. In one embodiment of the invention, the method includes generating one or more regions of the integrated circuit design, with each region having one or more cells, determining an amount of decoupling capacitance required in each region of the integrated circuit design by analyzing each cell in the region, and adding sufficient decoupling capacitor cells to the region to compensate for the potential voltage drop.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: October 6, 2009
    Assignee: Cadence Design Systems, Inc.
    Inventors: Harsh Dev Sharma, Rajeev Srivastava, Srivinas R. Kommoori, Bharat Bhushan, Mithunjoy Parui, Albert Lee
  • Publication number: 20090018816
    Abstract: Communication network and method for providing communication facilities for a plurality of users. The communication network comprises an announcement generating element (14) for sending network related messages to any of the users. A further network element is connected to the announcement generating element, the further network element being arranged for determining a preferred language for a specific user (10) of the plurality of users, and sending network related messages to the specific user (10) in the preferred language.
    Type: Application
    Filed: September 30, 2005
    Publication date: January 15, 2009
    Inventors: Rogier August Noldus, Arvind Dev Sharma, Ulf Ingemar Olsson
  • Patent number: 7260678
    Abstract: A system and method for determining a disk ownership model to be utilized by a storage system is disclosed. The storage system and method determines the individual disk ownership of each accessible disk to the storage system. If the number of disks utilizing a first ownership model is exceeded, the storage system utilizes the first ownership model. Otherwise, the storage system utilizes a second ownership model.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: August 21, 2007
    Assignee: Network Appliance, Inc.
    Inventors: Gaurav Agarwal, Susan M. Coatney, Steven S. Watanabe, Alan L. Rowe, Samuel M. Cramer, Gautam Dev Sharma
  • Patent number: 6678422
    Abstract: A method and apparatus for performing a multi-stage wavelet transform on a block of image data, using a smaller memory than would be required to implement an equivalent conventional multi-stage wavelet transform on the same block, and a method and apparatus for performing compression on a block of image data by performing a multi-stage wavelet transform on the block, quantizing coefficients resulting from the multi-stage wavelet transform, and performing entropy encoding on the quantized coefficients. Typically, the input image data is generated by a document scanner, and is compressed in a manner allowing fast decompression (by employing simple entropy encoding) and imposing low memory requirements.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: January 13, 2004
    Assignee: National Semiconductor Corporation
    Inventors: Chandan Dev Sharma, Bernd Meyer
  • Patent number: D804494
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: December 5, 2017
    Assignee: SAP SE
    Inventors: Jens Bombolowsky, Dev Sharma, Sabine Finke
  • Patent number: D808408
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: January 23, 2018
    Assignee: SAP SE
    Inventors: Jens Bombolowsky, Dev Sharma
  • Patent number: D810767
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: February 20, 2018
    Assignee: SAP SE
    Inventors: Dev Sharma, Sabine Finke, Jen Bombolowsky