Patents by Inventor Norbert Erhardt

Norbert Erhardt 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: 20260118287
    Abstract: Techniques and apparatuses are described that perform x-ray device calibration and imaging. In an example aspect the techniques and apparatuses include techniques and apparatuses to calibrate an x-ray device by performing a generalized calibration routine that is applicable to any rotation center of the x-ray device to measure calibration parameters of the x-ray device that describe at least mechanics of the x-ray device, imaging a volume by projecting an x-ray beam through the volume onto a detector based on a desired scanning trajectory or the calibration parameters to produce a plurality of x-ray images, generating an estimated projection geometry corresponding to the imaging using the calibration parameters and the desired scanning trajectory, and generating a reconstruction of the volume corresponding to the plurality of x-ray images using the estimated projection geometry and a motion artefact compensation.
    Type: Application
    Filed: October 28, 2024
    Publication date: April 30, 2026
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Markus HUELSBUSCH, Suanne Maur, Norbert Erhardt, David Guenther
  • Publication number: 20260047815
    Abstract: Aspects relate to generating cephalometric x-ray images by placing a source array including a plurality of individual x-ray sources, at a first location of one side of an object to be irradiated, placing a detector including a plurality of detector areas corresponding to the plurality of individual x-ray sources at another location on another side of the object opposite the first side, and projecting through the object, during a plurality of distinct time periods, x-rays from individual x-ray sources corresponding to the distinct time periods, and combining images generated by the projections to generate a combined cephalometric x-ray image.
    Type: Application
    Filed: August 16, 2024
    Publication date: February 19, 2026
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Michael ELVERS, Susanne MAUR, Markus HUELSBUSCH, Norbert ERHARDT
  • Patent number: 9176372
    Abstract: The invention relates to an X-ray device comprising an x-ray sensitive camera for creating tomograms, especially panoramic tomograms. Means for creating 3D shots of a partial volume of the mandibular arch are also provided, said 3D shots being created especially by a second image receiver for creating a 2D shot and means for taking a plurality of 2D shots from different directions and creating a 3D shot therefrom, preferably according to conebeam technology with the associated reconstruction algorithms. The x-ray sensitive camera comprises a first x-ray sensitive image receiver for creating a tomogram, and a second x-ray sensitive image receiver for creating plane shots.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: November 3, 2015
    Assignee: Sirona Dental Systems GmbH
    Inventors: Norbert Erhardt, Werner Gunther
  • Patent number: 8953740
    Abstract: The invention relates to an X-ray device comprising an x-ray sensitive camera for creating tomograms, especially panoramic tomograms. Means for creating 3D shots of a partial volume of the mandibular arch are also provided, said 3D shots being created especially by a second image receiver for creating a 2D shot and means for taking a plurality of 2D shots from different directions and creating a 3D shot therefrom, preferably according to conebeam technology with the associated reconstruction algorithms. The x-ray sensitive camera comprises a first x-ray sensitive image receiver for creating a tomogram, and a second x-ray sensitive image receiver for creating plane shots.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: February 10, 2015
    Assignee: Sirona Dental Systems GmbH
    Inventors: Norbert Erhardt, Werner Gunther
  • Publication number: 20120189096
    Abstract: The invention relates to an X-ray device comprising an x-ray sensitive camera for creating tomograms, especially panoramic tomograms. Means for creating 3D shots of a partial volume of the mandibular arch are also provided, said 3D shots being created especially by a second image receiver for creating a 2D shot and means for taking a plurality of 2D shots from different directions and creating a 3D shot therefrom, preferably according to conebeam technology with the associated reconstruction algorithms. The x-ray sensitive camera comprises a first x-ray sensitive image receiver for creating a tomogram, and a second x-ray sensitive image receiver for creating plane shots.
    Type: Application
    Filed: April 3, 2012
    Publication date: July 26, 2012
    Applicant: SIRONA DENTAL SYSTEMS GmbH
    Inventors: Norbert Erhardt, Werner Günther
  • Patent number: 8152373
    Abstract: The invention relates to an X-ray device comprising an x-ray sensitive camera for creating tomograms, especially panoramic tomograms. Means for creating 3D shots of a partial volume of the mandibular arch are also provided, said 3D shots being created especially by a second image receiver for creating a 2D shot and means for taking a plurality of 2D shots from different directions and creating a 3D sot therefrom, preferably according to conebeam technology with the associated reconstruction algorithms. The x-ray sensitive camera comprises a first x-ray sensitive image receiver for creating a tomogram, and a second x-ray sensitive image receiver for creating plane shots.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: April 10, 2012
    Assignee: Sirona Dental Systems GmbH
    Inventors: Norbert Erhardt, Werner Gunther
  • Publication number: 20100303204
    Abstract: The invention relates to an X-ray device comprising an x-ray sensitive camera for creating tomograms, especially panoramic tomograms. Means for creating 3D shots of a partial volume of the mandibular arch are also provided, said 3D shots being created especially by a second image receiver for creating a 2D shot and means for taking a plurality of 2D shots from different directions and creating a 3D sot therefrom, preferably according to conebeam technology with the associated reconstruction algorithms. The x-ray sensitive camera comprises a first x-ray sensitive image receiver for creating a tomogram, and a second x-ray sensitive image receiver for creating plane shots.
    Type: Application
    Filed: August 16, 2010
    Publication date: December 2, 2010
    Applicant: SIRONA DENTAL SYSTEMS GMBH
    Inventors: Norbert Erhardt, Werner Gunther
  • Patent number: 7798708
    Abstract: The invention relates to an x-ray device (50) comprising an x-ray sensitive camera (55) for creating tomograms, especially panoramic tomograms. Means for creating 3D shots of a partial volume of the mandibular arch are also provided, said 3D shots being created especially by a second image receiver (5) for creating a 2D shot and means for taking a plurality of 2D shots from different directions and creating a 3D shot therefrom, preferably according to conebeam technology with the associated reconstruction algorithms. The x-ray-sensitive camera (55) comprises a first x-ray sensitive image receiver (4) for creating a tomogram, and a second x-ray sensitive image receiver (5) for creating plane shots.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: September 21, 2010
    Assignee: Sirona Dental Systems GmbH
    Inventors: Norbert Erhardt, Werner Günther
  • Publication number: 20060233301
    Abstract: The invention relates to an x-ray device (50) comprising an x-ray sensitive camera (55) for creating tomograms, especially panoramic tomograms. Means for creating 3D shots of a partial volume of the mandibular arch are also provided, said 3D shots being created especially by a second image receiver (5) for creating a 2D shot and means for taking a plurality of 2D shots from different directions and creating a 3D shot therefrom, preferably according to conebeam technology with the associated reconstruction algorithms. The x-ray-sensitive camera (55) comprises a first x-ray sensitive image receiver (4) for creating a tomogram, and a second x-ray sensitive image receiver (5) for creating plane shots.
    Type: Application
    Filed: March 24, 2004
    Publication date: October 19, 2006
    Inventors: Norbert Erhardt, Werner Günther