Patents by Inventor Jonathan Richard Schmidt
Jonathan Richard Schmidt 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: 8100584Abstract: Methods and systems are generally described for measuring a voltage used by an imaging system to generate radiation used in imaging. In embodiments, different datasets are acquired using different degrees of attenuation of the radiation. The differently attenuated datasets are processed to derive a ratio of the differential attenuation. The attenuation ratio is processed to derive a measure of the voltage used by the imaging system to generate the radiation used to acquire the different datasets.Type: GrantFiled: October 21, 2009Date of Patent: January 24, 2012Assignee: General Electric CompanyInventors: Ariel Friedlander, Jonathan Richard Schmidt, Thomas Louis Toth
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Publication number: 20110091017Abstract: Methods and systems are generally described for measuring a voltage used by an imaging system to generate radiation used in imaging. In embodiments, different datasets are acquired using different degrees of attenuation of the radiation. The differently attenuated datasets are processed to derive a ratio of the differential attenuation. The attenuation ratio is processed to derive a measure of the voltage used by the imaging system to generate the radiation used to acquire the different datasets.Type: ApplicationFiled: October 21, 2009Publication date: April 21, 2011Applicant: General Electric CompanyInventors: Ariel Friedlander, Jonathan Richard Schmidt, Thomas Louis Toth
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Patent number: 7593502Abstract: Methods and apparatus for an imaging system are provided. The imaging system includes a gantry having a stationary member coupled to a rotating member. The rotating member has an opened area proximate an axis about which the rotating member rotates. An x-ray source provided on the rotating member. An x-ray detector may be disposed on the rotating member and configured to receive x-rays from the x-ray source. A rotary transformer having circumferentially disposed primary and secondary windings may form part of a contactless power transfer system that rotates the rotatable portion of the gantry at very high speeds, the primary winding being disposed on the stationary member and the secondary winding being disposed on the rotating member.Type: GrantFiled: October 13, 2006Date of Patent: September 22, 2009Assignee: General Electric CompanyInventors: Jason Stuart Katcha, Bruce Matthew Dunham, Robert Senzig, Jonathan Richard Schmidt, Thomas Louis Toth, David Michael Hoffman, Phil E. Pearson, Jr., Jiang Hsieh
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Patent number: 7522705Abstract: Apparatus includes a fixed computed tomography (CT) system including a storage device configured to share power delivery with an input power line in order to reduce peak load requirements of the input power line.Type: GrantFiled: November 14, 2006Date of Patent: April 21, 2009Assignee: General Electric CompanyInventors: Jason Stuart Katcha, Jonathan Richard Schmidt
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Patent number: 7447297Abstract: A method includes performing an at least partially automated method to synchronize an x-ray source focal spot (FS) position to a FS deflection feedback signal.Type: GrantFiled: August 4, 2006Date of Patent: November 4, 2008Assignee: General Electric CompanyInventors: Bruce Matthew Dunham, Jonathan Richard Schmidt
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Patent number: 7409043Abstract: A method for controlling focal spot size changes of an x-ray source in an imaging system includes measuring focal spot sizes as a function of a plurality of x-ray source operating parameters, determining a calibration table or transfer function utilizing the measured focal spot sizes as a function of the plurality of x-ray tube operating parameters, and utilizing the calibration table or transfer function to control focal spot size variations during operation of the imaging system.Type: GrantFiled: May 23, 2006Date of Patent: August 5, 2008Assignee: General Electric CompanyInventors: Bruce Matthew Dunham, Jonathan Richard Schmidt, Sergio Lemaitre
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Publication number: 20080112537Abstract: Apparatus includes a fixed computed tomography (CT) system including a storage device configured to share power delivery with an input power line in order to reduce peak load requirements of the input power line.Type: ApplicationFiled: November 14, 2006Publication date: May 15, 2008Inventors: Jason Stuart Katcha, Jonathan Richard Schmidt
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Publication number: 20080095314Abstract: Methods and apparatus for an imaging system are provided. The imaging system includes a gantry having a stationary member coupled to a rotating member. The rotating member has an opened area proximate an axis about which the rotating member rotates. An x-ray source provided on the rotating member. An x-ray detector may be disposed on the rotating member and configured to receive x-rays from the x-ray source. A rotary transformer having circumferentially disposed primary and secondary windings may form part of a contactless power transfer system that rotates the rotatable portion of the gantry at very high speeds, the primary winding being disposed on the stationary member and the secondary winding being disposed on the rotating member.Type: ApplicationFiled: October 13, 2006Publication date: April 24, 2008Inventors: Jason Stuart Katcha, Bruce Matthew Dunham, Robert Senzig, Jonathan Richard Schmidt, Thomas Louis Toth, David Michael Hoffman, Phil E. Pearson, Jiang Hsieh
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Publication number: 20080031419Abstract: A method includes performing an at least partially automated method to synchronize an x-ray source focal spot (FS) position to a FS deflection feedback signal.Type: ApplicationFiled: August 4, 2006Publication date: February 7, 2008Inventors: Bruce Matthew Dunham, Jonathan Richard Schmidt
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Publication number: 20070274457Abstract: A method for controlling focal spot size changes of an x-ray source in an imaging system includes measuring focal spot sizes as a function of a plurality of x-ray source operating parameters, determining a calibration table or transfer function utilizing the measured focal spot sizes as a function of the plurality of x-ray tube operating parameters, and utilizing the calibration table or transfer function to control focal spot size variations during operation of the imaging system.Type: ApplicationFiled: May 23, 2006Publication date: November 29, 2007Inventors: Bruce Matthew Dunham, Jonathan Richard Schmidt, Sergio Lemaitre
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Patent number: 7197113Abstract: In accordance with one embodiment, a contactless power transfer system is provided that comprises a stationary member including a power input configured to receive power at first voltage from a power supply. The system further includes a rotating member rotatably coupled to the stationary member and a rotary transformer. The rotary transformer has primary and secondary sides, with the primary side being disposed on the stationary member. The primary side has a primary winding that receives power at the first voltage from the power input. The secondary side is disposed on the rotating member and produces power at a second voltage. The secondary side has a rotating core and separate secondary sub-windings, each of which has forward and return paths that are circumferentially disposed about the rotating core. The forward and return paths of each of the sub-windings rotate proximate to, and are disposed a substantially equal distance from, the primary winding disposed on the stationary member.Type: GrantFiled: December 1, 2005Date of Patent: March 27, 2007Assignee: General Electric CompanyInventors: Jason Stuart Katcha, Jonathan Richard Schmidt
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Patent number: 7054411Abstract: A multichannel, contactless power transfer system includes a primary power inverter disposed on a stationary side of the system, and an auxiliary power inverter disposed on the stationary side of the system. A rotary transformer has a primary side thereof disposed on the stationary side of the system and a secondary side disposed on a rotating side of the system. The rotary transformer is configured to couple primary power from an output of the primary power inverter to a primary power voltage output on the rotating side of the system, and is further configured to couple auxiliary power from an output of the auxiliary power inverter to at least one auxiliary voltage output on the rotating side of the system.Type: GrantFiled: April 1, 2004Date of Patent: May 30, 2006Assignee: General Electric CompanyInventors: Jason Stuart Katcha, Jonathan Richard Schmidt, Marcela Gonzalez, Phil E. Pearson, Jr.
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Patent number: 5761257Abstract: The present invention, in one form, is a method for detecting reference channel blockage in a computed tomography system. The system includes an x-ray source, a detector and a reference channel. When scanning an object of interest, the x-ray source is supplied with an x-ray source current and projects an x-ray beam toward the detector and the reference channel. The detector, when impinged by the x-ray beam, generates projection data for reconstructing an image of the object of interest. The reference channel is configured to generate an actual reference channel signal when impinged by the x-ray beam. An expected reference signal is determined in accordance with the x-ray source current. The expected reference signal is then utilized to normalize the projection data.Type: GrantFiled: December 2, 1996Date of Patent: June 2, 1998Assignee: General Electric CompanyInventors: Thomas Louis Toth, Jonathan Richard Schmidt