Patents by Inventor Brian James Grekowicz
Brian James Grekowicz 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: 9689993Abstract: An imaging system includes an analog-to-digital converter configured to convert an analog pixel value into a first digital pixel value. The imaging system also includes an index value source configured to receive the first digital pixel value from the analog-to-digital converter and to generate a digital index value based on a comparison of the first digital pixel value to a digital reference value. In addition, the imaging system includes a transmitter in communication with the index value source and configured to transmit the digital index value. Further, the imaging system includes an image processing component configured to receive the digital index value and to generate a second digital pixel value based at least in part on the received digital index value and a lookup table of the image processing component.Type: GrantFiled: May 10, 2016Date of Patent: June 27, 2017Assignee: GENERAL ELECTRIC COMPANYInventors: James Zhengshe Liu, Richard Larry Anderton, Brian James Grekowicz, Bela Janos Kiraly
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Patent number: 9488737Abstract: An imaging system includes an analog-to-digital converter configured to convert an analog pixel value into a first digital pixel value. The imaging system also includes an index value source configured to receive the first digital pixel value from the analog-to-digital converter and to generate a digital index value based on a comparison of the first digital pixel value to a digital reference value. In addition, the imaging system includes a transmitter in communication with the index value source and configured to transmit the digital index value. Further, the imaging system includes an image processing component configured to receive the digital index value and to generate a second digital pixel value based at least in part on the received digital index value and a lookup table of the image processing component.Type: GrantFiled: December 11, 2014Date of Patent: November 8, 2016Assignee: GENERAL ELECTRIC COMPANYInventors: James Zhengshe Liu, Richard Larry Anderton, Brian James Grekowicz, Bela Janos Kiraly
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Publication number: 20160249877Abstract: An imaging system includes an analog-to-digital converter configured to convert an analog pixel value into a first digital pixel value. The imaging system also includes an index value source configured to receive the first digital pixel value from the analog-to-digital converter and to generate a digital index value based on a comparison of the first digital pixel value to a digital reference value. In addition, the imaging system includes a transmitter in communication with the index value source and configured to transmit the digital index value. Further, the imaging system includes an image processing component configured to receive the digital index value and to generate a second digital pixel value based at least in part on the received digital index value and a lookup table of the image processing component.Type: ApplicationFiled: May 10, 2016Publication date: September 1, 2016Inventors: James Zhengshe Liu, Richard Larry Anderton, Brian James Grekowicz, Bela Janos Kiraly
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Publication number: 20150103973Abstract: An x-ray system with multiple dynamic range selections. The system including an x-ray source and a detector, wherein the detector includes a scintillator and a pixel. The pixel includes a photodiode and first and second capacitors connectable to the photodiode. The pixel is configured to be switched between a first state where only the first capacitor is connected to the photodiode and a second state where both capacitors are connected to the photodiode. The x-ray source directs x-rays to the detector and a region of interest positioned between the source and detector, the scintillator converts the x-rays to light, and the pixel photodiode converts the light to an electrical charge. The charge is stored in the first capacitor when the pixel is in the first state and in the first and second capacitors when the pixel is in the second state.Type: ApplicationFiled: October 11, 2013Publication date: April 16, 2015Applicant: General Electric CompanyInventors: James Zhengshe Liu, Jonathan Edvard Snyder, Richard Larry Anderton, David Ellis Barker, Brian James Grekowicz
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Publication number: 20150092922Abstract: An imaging system includes an analog-to-digital converter configured to convert an analog pixel value into a first digital pixel value. The imaging system also includes an index value source configured to receive the first digital pixel value from the analog-to-digital converter and to generate a digital index value based on a comparison of the first digital pixel value to a digital reference value. In addition, the imaging system includes a transmitter in communication with the index value source and configured to transmit the digital index value. Further, the imaging system includes an image processing component configured to receive the digital index value and to generate a second digital pixel value based at least in part on the received digital index value and a lookup table of the image processing component.Type: ApplicationFiled: December 11, 2014Publication date: April 2, 2015Inventors: James Zhengshe Liu, Richard Larry Anderton, Brian James Grekowicz, Bela Janos Kiraly
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Patent number: 8942444Abstract: An imaging system includes an analog-to-digital converter configured to convert an analog pixel value into a first digital pixel value. The imaging system also includes an index value source configured to receive the first digital pixel value from the analog-to-digital converter and to generate a digital index value based on a comparison of the first digital pixel value to a digital reference value. In addition, the imaging system includes a transmitter in communication with the index value source and configured to transmit the digital index value. Further, the imaging system includes an image processing component configured to receive the digital index value and to generate a second digital pixel value based at least in part on the received digital index value and a lookup table of the image processing component.Type: GrantFiled: August 17, 2012Date of Patent: January 27, 2015Assignee: General Electric CompanyInventors: James Zhengshe Liu, Richard Larry Anderton, Brian James Grekowicz, Bela Janos Kiraly
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Publication number: 20140050418Abstract: An imaging system includes an analog-to-digital converter configured to convert an analog pixel value into a first digital pixel value. The imaging system also includes an index value source configured to receive the first digital pixel value from the analog-to-digital converter and to generate a digital index value based on a comparison of the first digital pixel value to a digital reference value. In addition, the imaging system includes a transmitter in communication with the index value source and configured to transmit the digital index value. Further, the imaging system includes an image processing component configured to receive the digital index value and to generate a second digital pixel value based at least in part on the received digital index value and a lookup table of the image processing component.Type: ApplicationFiled: August 17, 2012Publication date: February 20, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: James Zhengshe Liu, Richard Larry Anderton, Brian James Grekowicz, Bela Janos Kiraly
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Patent number: 7113570Abstract: Methods, apparatus and systems for controlling x-ray exposure during a scan with a computed tomography system are provided. The system includes an x-ray source, a collimator, and a detector array. The collimator includes a first cam configured to shutter an x-ray fan beam, generated by the x-ray source, in a first direction, a second cam located on an opposite side of a focal point of the x-ray source from the first cam, the second cam configured to shutter the x-ray fan beam in a second direction, the second direction being opposite from the first direction, and a cam drive configured to position at least one of the first cam and the second cam during the scan.Type: GrantFiled: February 8, 2005Date of Patent: September 26, 2006Assignee: General Electric CompanyInventors: Thomas Louis Toth, Brian James Grekowicz
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Patent number: 6944260Abstract: Some configurations of the present invention provide a method for reconstructing an image of an object of a computed tomographic imaging system having a detector array and a radiation source, wherein an arc of the detector array is not concentric to a focal spot of the radiation source. The method includes scanning the object with the computed tomographic imaging system to obtain a fan beam dataset, rebinning the fan beam dataset into a set of parallel datasets; and reconstructing an image utilizing the set of parallel datasets.Type: GrantFiled: November 11, 2003Date of Patent: September 13, 2005Assignee: GE Medical Systems Global Technology Company, LLCInventors: Jiang Hsieh, Edward Henry Chao, Brian James Grekowicz, Jean-Baptiste Thibault