Patents by Inventor Aditya Dalvi

Aditya Dalvi 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).

  • Blood processing apparatus with robust automated process control
    Patent number: 8501015
    Abstract: A centrifuge for separating blood having a camera observing fluid flow, and a controller controlling the flow. The location of an interface is detected by image processing steps, which may comprise the steps of “spoiling” the image, “diffusing” the image, “edge detection”, “edge linking”, “region-based confirmation”, and “interface calculation”. “Spoiling” reduces the number of pixels to be examined preferentially on orthogonal axis oriented with respect to the expected location of the interface or phase boundary. “Diffusing” smoothes out small oscillations in the interface boundary, making the location of the interface more distinct. “Edge detection” computes the rate of change in pixel intensity. “Edge linking” connects adjacent maxima. “Region-based confirmation” creates a pseudo image of the regions that qualify as distinct. “Final edge calculation” uses the points where the shade changes in the pseudo image, averages the radial displacement of these points for the interface position.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: August 6, 2013
    Assignee: Terumo BCT, Inc.
    Inventors: Christopher Fletcher, William Sweat, Jeremy Kolenbrander, Aditya Dalvi, John R. Linder
  • Blood processing apparatus with robust automated process control
    Patent number: 8449439
    Abstract: A centrifuge for separating blood having a camera observing fluid flow, and a controller controlling the flow. The location of an interface is detected by image processing steps, which may comprise the steps of “spoiling” the image, “diffusing” the image, “edge detection”, “edge linking”, “region-based confirmation”, and “interface calculation”. “Spoiling” reduces the number of pixels to be examined preferentially on orthogonal axis oriented with respect to the expected location of the interface or phase boundary. “Diffusing” smoothes out small oscillations in the interface boundary, making to the location of the interface more distinct. “Edge detection” computes the rate of change in pixel intensity. “Edge linking” connects adjacent maxima. “Region-based confirmation” creates a pseudo image of the regions that qualify as distinct. “Final edge calculation” uses the points where the shade changes in the pseudo image, averages the radial displacement of these points for the interface position.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: May 28, 2013
    Assignee: Terumo BCT, Inc.
    Inventors: Christopher Fletcher, William Sweat, Jeremy P. Kolenbrander, Aditya Dalvi, John R. Lindner
  • Blood processing apparatus with robust automated process control
    Patent number: 8337379
    Abstract: A centrifuge for separating blood having a camera observing fluid flow, and a controller controlling the flow. The location of an interface is detected by image processing steps, which may comprise the steps of “spoiling” the image, “diffusing” the image, “edge detection”, “edge linking”, “region-based confirmation”, and “interface calculation”. “Spoiling” reduces the number of pixels to be examined preferentially on orthogonal axis oriented with respect to the expected location of the interface or phase boundary. “Diffusing” smoothes out small oscillations in the interface boundary, making the location of the interface more distinct. “Edge detection” computes the rate of change in pixel intensity, or. “Edge linking” connects adjacent maxima. “Region-based confirmation” creates a pseudo image of the regions that qualify as distinct. “Final edge calculation” uses the points where the shade changes in the pseudo image, averages the radial displacement of these points for the interface position.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: December 25, 2012
    Assignee: Terumo BCT, Inc.
    Inventors: Christopher Fletcher, William Sweat, Jeremy Kolenbrander, Aditya Dalvi, John R. Linder
  • Blood Processing Apparatus with Robust Automated Process Control
    Publication number: 20080045394
    Abstract: A centrifuge for separating blood having a camera observing fluid flow, and a controller controlling the flow. The location of an interface is detected by image processing steps, which may comprise the steps of “spoiling” the image, “diffusing” the image, “edge detection”, “edge linking”, “region-based confirmation”, and “interface calculation”. “Spoiling” reduces the number of pixels to be examined preferentially on orthogonal axis oriented with respect to the expected location of the interface or phase boundary. “Diffusing” smoothes out small oscillations in the interface boundary, making the location of the interface more distinct. “Edge detection” computes the rate of change in pixel intensity, or. “Edge linking” connects adjacent maxima. “Region-based confirmation” creates a pseudo image of the regions that qualify as distinct. “Final edge calculation” uses the points where the shade changes in the pseudo image, averages the radial displacement of these points for the interface position.
    Type: Application
    Filed: July 2, 2007
    Publication date: February 21, 2008
    Applicant: GAMBRO BCT, INC.
    Inventors: Jeremy KOLENBRANDER, Aditya DALVI, Christopher FLETCHER, William SWEAT, John R. LINDNER