Patents by Inventor Thomas Rosevear
Thomas Rosevear 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).
-
Patent number: 6175773Abstract: An improved high resolution method and apparatus are described for sensing and determining the spatial coordinates of a movable object with respect to a energized conductive surface. The coordinates of the object are precisely measured with respect to a two-dimensional coordinate system independent of the third orthogonal dimension, thereby avoiding significant measurement errors due to variations of the object position in the third orthogonal dimension. The system also ascertains the coordinate position of the object in this third dimension, which can then be utilized as an independent control variable in the system. Further, the system can accommodate a number of energized conductive surfaces over which the object may be positioned and can determine the spatial coordinates of the object with respect to any such surface.Type: GrantFiled: November 23, 1998Date of Patent: January 16, 2001Assignee: LG Electronics, Inc.Inventors: Leonard Reiffel, Wayne D Jung, Thomas Rosevear, Thomas Jakobs
-
Patent number: 6047042Abstract: An exposure control system for radiographic, fluoroscopic, or other diagnostic imaging includes an exposure sensor array and a control element. The exposure sensor array has a plurality of sensor elements directed to defined locations uniformly distributed over the imaging field and may make direct or indirect measurements of exposure rate or imaging converter brightness. A structure or region of diagnostic interest to examining personnel is identified, and only sensors which correspond to locations within the area of interest are selected for use in exposure control. Predefined examination parameters suitable for particular anatomical patient regions are stored. Upon request by examining personnel to perform an examination of an anatomical patient region, the parameters are retrieved for use. The parameters include a preselection of sensors typically suitable for examinations of such region.Type: GrantFiled: March 25, 1998Date of Patent: April 4, 2000Assignee: Continental X-Ray CorporationInventors: Oscar Khutoryansky, Thomas Rosevear, Yevgeniy Maltsev, Thomas Simak, Gregory Pasman, James A. Princehorn
-
Patent number: 5917882Abstract: A radiographic/fluoroscopic imaging system provides rapid transition from fluoroscopic to radiographic imaging mode by maintaining the X-ray tube high voltage, increasing the filament current, allowing X-ray tube current to increase toward the desired radiographic current, and terminating exposure when the desired X-ray dose has been achieved. Rapid transition from radiographic to fluoroscopic imaging mode is provided by reducing x-ray tube high voltage to produce an equivalent fluoroscopic-level x-ray output at high initial current, dropping filament current, and enabling ABS control of the high-voltage. As x-ray tube current drops, ABS correspondingly increase high voltage to maintain the desired output. The imaging system obtains movement-related information by analyzing a video signal (such as from fluoroscopic image or an image from an optical camera trained on the patient), or from operator movement requests.Type: GrantFiled: November 29, 1996Date of Patent: June 29, 1999Assignee: Continental X-Ray CorporationInventors: Oscar Khutoryansky, Thomas Rosevear, Cyril Tomsic, Yevgeniy Maltsev, Thomas Simak, James Taylor
-
Patent number: 5917883Abstract: A radiographic/fluoroscopic imaging system provides rapid transition from fluoroscopic to radiographic imaging mode by maintaining the X-ray tube high voltage, increasing the filament current, allowing X-ray tube current to increase toward the desired radiographic current, and terminating exposure when the desired X-ray dose has been achieved. Rapid transition from radiographic to fluoroscopic imaging mode is provided by reducing x-ray tube high voltage to produce an equivalent fluoroscopic-level x-ray output at high initial current, dropping filament current, and enabling ABS control of the high-voltage. As x-ray tube current drops, ABS correspondingly increase high voltage to maintain the desired output. The imaging system obtains movement-related information by analyzing a video signal (such as from fluoroscopic image or an image from an optical camera trained on the patient), or from operator movement requests.Type: GrantFiled: June 27, 1997Date of Patent: June 29, 1999Assignee: Continental X-Ray CorporationInventors: Oscar Khutoryansky, Thomas Rosevear, Cyril Tomsic, Yevgeniy Maltsev, Thomas Simak, James Taylor
-
Patent number: 5901197Abstract: Methods for extending the life of an X-ray tube having at least two filaments which are individually energizable in which the filaments are successively energized either for a predetermined number of exposures or based on a predetermined passage of time, and methods for predicting imminent failure of still functioning filaments.Type: GrantFiled: August 20, 1997Date of Patent: May 4, 1999Assignee: Continental X-Ray CorporationInventors: Oscar Khutoryansky, Thomas Rosevear, Cyril Tomsic, Emil Rosenzweig
-
Patent number: 5870450Abstract: A universal radiographic/fluoroscopic room includes a digital imaging platform adapted to occupy operating and non-operating positions. A park function automatically moves the digital imaging platform between the operating and non-operating positions without requiring operator effort. The digital imaging platform has local and remote control panels having substantially duplicate functions. The remote control panel allows the operator to control operation of the digital imaging platform from a location shielded from X-ray exposure. Methods and apparatus are provided to ensure safe, predictable, and consistent operation from all control panels. The operator selects any available operating mode, including auto-bucky, auto-wall, auto-table, auto-table/wall, servo-tomo, conventional stepping, stepped-digital, auto-step, and auto-step-center modes, using a control panel.Type: GrantFiled: June 26, 1997Date of Patent: February 9, 1999Assignee: Continental X-Ray CorporationInventors: Oscar Khutoryansky, Dennis Bleser, Allan Kojro, Thomas Simak, Thomas Rosevear
-
Patent number: 5841653Abstract: An improved high resolution method and apparatus are described for sensing and determining the spatial coordinates of a movable object with respect to a energized conductive surface. The coordinates of the object are precisely measured with respect to a two-dimensional coordinate system independent of the third orthogonal dimension, thereby avoiding significant measurement errors due to variations of the object position in the third orthogonal dimension. The system also ascertains the coordinate position of the object in this third dimension, which can then be utilized as an independent control variable in the system. Further, the system can accommodate a number of energized conductive surfaces over which the object may be positioned and can determine the spatial coordinates of the object with respect to any such surface.Type: GrantFiled: May 27, 1994Date of Patent: November 24, 1998Assignee: Goldstar Electron Co., Ltd.Inventors: Leonard Reiffel, Wayne D Jung, Thomas Rosevear, Thomas Jakobs
-
Patent number: 5768336Abstract: A universal radiographic/fluoroscopic "room" is constructed according to the present invention by combining a versatile group of X-ray examination system components, electrical and mechanical drive components, and sensing components, under the supervision of a flexible control system, to form a universal diagnostic medical imaging system capable of performing radiographic, fluoroscopic, tomographic, and stepped examinations in several different operator-selectable configurations. The operator selects any available operating mode, including auto-bucky, auto-wall, auto-table, auto-table/wall, servo-tomo, conventional stepping, stepped-digital, auto-step, and auto-step-center modes, using a a control panel. The control system automatically determines which system components are required to perform that type of examination, moves the components into operational or storage positions as required, and prepares each component for operation. The operator need not manually reconfigure the equipment.Type: GrantFiled: October 11, 1996Date of Patent: June 16, 1998Assignee: Continental X-Ray CorporationInventors: Oscar Khutoryansky, Dennis Bleser, Allan Kojro, Thomas Simak, Thomas Rosevear
-
Patent number: 5751788Abstract: A universal radiographic/fluoroscopic "room" is constructed according to the present invention by combining a versatile group of X-ray examination system components, electrical and mechanical drive components, and sensing components, under the supervision of a flexible control system, to form a universal diagnostic medical imaging system capable of performing radiographic, fluoroscopic, tomographic, and stepped examinations in several different operator-selectable configurations. The operator selects any available operating mode, including auto-bucky, auto-wall, auto-table, auto-table/wall, servo-tomo, conventional stepping, stepped-digital, auto-step, and auto-step-center modes, using a a control panel. The control system automatically determines which system components are required to perform that type of examination, moves the components into operational or storage positions as required, and prepares each component for operation. The operator need not manually reconfigure the equipment.Type: GrantFiled: October 11, 1996Date of Patent: May 12, 1998Assignee: Continental X-Ray CorporationInventors: Oscar Khutoryansky, Dennis Bleser, Allan Kojro, Thomas Simak, Thomas Rosevear
-
Patent number: 5734694Abstract: A universal radiographic apparatus that allows an operator to select between conventional radiographic mode and linear tomographic mode. In conventional radiographic mode of operation, several automatic modes are provided. An x-ray tube mounted to a tube crane positioned above an elevating table can be accurately controlled in longitudinal and vertical movement, as well as in x-ray tube angulation. In linear tomographic mode, a table bucky is moved laterally in opposition to movement of the tube crane, with angulation keeping the tube aimed at the bucky. In conventional radiographic mode, the system supports an auto bucky mode, where the table bucky automatically tracks tubecrane motion, or an auto table mode, where the tube crane tracks table vertical motion to maintain a fixed SID. In an auto wall mode, the tube crane tracks vertical movement of an associated wall bucky.Type: GrantFiled: October 9, 1996Date of Patent: March 31, 1998Assignee: Continental X-Ray CorporationInventors: Oscar Khutoryansky, Dennis Bleser, Allan Kojro, Thomas Simak, Thomas Rosevear
-
Patent number: 5680430Abstract: A method for controlling output of an x-ray source to optimize x-ray energy arriving at an associated x-ray receptor during linear tomographic examination. The method comprises the steps of selecting tomographic sweep parameters, predicting a set of x-ray source control parameters based, at least in part, upon the selected tomographic sweep parameters, and controlling x-ray source output in accordance with the set of x-ray source control parameters to optimize x-ray energy arriving at the associated x-ray receptor. Apparatus for controlling output of an x-ray source is also disclosed.Type: GrantFiled: April 23, 1996Date of Patent: October 21, 1997Assignee: Continental X-Ray CorporationInventors: Oscar Khutoryansky, Thomas Rosevear, Thomas Simak, Cyril Tomsic
-
Patent number: 5636259Abstract: A universal radiographic/fluoroscopic "room" is constructed according to the present invention by combining a versatile group of X-ray examination system components, electrical and mechanical drive components, and sensing components, under the supervision of a flexible control system, to form a universal diagnostic medical imaging system capable of performing radiographic, fluoroscopic, tomographic, and stepped examinations in several different operator-selectable configurations. The operator selects any available operating mode, including auto-bucky, auto-wall, auto-table, auto-table/wall, servo-tomo, conventional stepping, stepped-digital, auto-step, and auto-step-center modes, using a control panel. The control system automatically determines which system components are required to perform that type of examination, moves the components into operational or storage positions as required, and prepares each component for operation. The operator need not manually reconfigure the equipment.Type: GrantFiled: May 18, 1995Date of Patent: June 3, 1997Assignee: Continental X-Ray CorporationInventors: Oscar Khutoryansky, Dennis Bleser, Allan Kojro, Thomas Simak, Thomas Rosevear
-
Patent number: 5572567Abstract: A universal radiographic apparatus that allows an operator to select between conventional radiographic mode and linear tomographic mode. In conventional radiographic mode of operation, several automatic modes are provided. An x-ray tube mounted to a tube crane positioned above an elevating table can be accurately controlled in longitudinal and vertical movement, as well as in x-ray tube angulation. In linear tomographic mode, a table bucky is moved laterally in opposition to movement of the tube crane, with angulation keeping the tube aimed at the bucky. In conventional radiographic mode, the system supports an auto bucky mode, where the table bucky automatically tracks tubecrane motion, or an auto table mode, where the tube crane tracks table vertical motion to maintain a fixed SID. In an auto wall mode, the tube crane tracks vertical movement of an associated wall bucky.Type: GrantFiled: December 8, 1994Date of Patent: November 5, 1996Assignee: Continental X-Ray Corp.Inventors: Oscar Khutoryansky, Dennis Bleser, Allan Kojro, Thomas Simak, Thomas Rosevear
-
Patent number: 5317502Abstract: An improved high resolution method and apparatus are described for sensing and determining the spatial coordinates of a movable object with respect to a energized conductive surface. The coordinates of the object are precisely measured with respect to a two-dimensional coordinate system independent of the third orthogonal dimension, thereby avoiding significant measurement errors due to variations of the object position in the third orthogonal dimension. The system also ascertains the coordinate position of the object in this third dimension, which can then be utilized as an independent control variable in the system. Further, the system can accommodate a number of energized conductive surfaces over which the object may be positioned and can determine the spatial coordinates of the object with respect to any such surface.Type: GrantFiled: December 24, 1992Date of Patent: May 31, 1994Assignee: Goldstar Electron Co., Ltd.Inventors: Leonard Reiffel, Wayne D. Jung, Thomas Rosevear, Thomas Jakobs
-
Patent number: 5251123Abstract: An improved high resolution method and apparatus are described for sensing and determining the spatial coordinates of a movable object with respect to a energized conductive surface. The coordinates of the object are precisely measured with respect to a two-dimensional coordinate system independent of the third orthogonal dimension, thereby avoiding significant measurement errors due to variations of the object position in the third orthogonal dimension. The system also ascertains the coordinate position of the object in this third dimension, which can then be utilized as an independent control variable in the system. Further, the system can accommodate a number of energized conductive surfaces over which the object may be positioned and can determine the spatial coordinates of the object with respect to any such surface.Type: GrantFiled: August 13, 1991Date of Patent: October 5, 1993Assignee: I C Operating, Inc.Inventors: Leonard Reiffel, Wayne D. Jung, Thomas Rosevear, Thomas Jakobs