Patents by Inventor Rod Duncan
Rod Duncan 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: 11925435Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device provides for more efficient transmission and capture of images. It integrates OCT scanning with RGB-based scanning. In operation, the device is used for recording topological characteristics of teeth, dental impressions, or stone models by digital methods and for use in CAD/CAM of dental restorative prosthetic devices. To that end, the RGB-based scan obtains surface data (e.g., a margin), while the OCT scan penetrates the surface. The two scanners operate from within the same physical housing and preferably at the same time such that only one scanning pass (to obtain all necessary data) is required. The 3D data obtained from the OCT scan is registered with the 3D data obtained from the RGB-based scan by virtue of being captured using a common return path.Type: GrantFiled: June 9, 2022Date of Patent: March 12, 2024Assignee: D4D Technologies, LLCInventors: Ye Li, Justin G. Graham, Rod A. Duncan, Greg R. Basile, Grant E. Kenworthy, Henley S. Quadling, Mark S. Quadling, Glen Freeman
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Publication number: 20230233295Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device has a reduced form factor as compared to prior devices, and it provides for more efficient transmission and capture of images.Type: ApplicationFiled: April 3, 2023Publication date: July 27, 2023Inventors: Ye Li, Gregory R. Basile, Rod A. Duncan, Justin G. Graham, Grant E. Kenworthy, Henley S. Quadling, Mark S. Quadling, Andrei Tchouprakov, Lasse H. Toimela
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Patent number: 11648095Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device has a reduced form factor as compared to prior devices, and it provides for more efficient transmission and capture of images.Type: GrantFiled: August 9, 2018Date of Patent: May 16, 2023Assignee: D4D Technologies, LLCInventors: Ye Li, Gregory R. Basile, Rod A. Duncan, Justin G. Graham, Grant E. Kenworthy, Henley S. Quadling, Mark S. Quadling, Andrei Tchouprakov, Lasse H. Toimela
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Publication number: 20220296103Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device provides for more efficient transmission and capture of images. It integrates OCT scanning with RGB-based scanning. In operation, the device is used for recording topological characteristics of teeth, dental impressions, or stone models by digital methods and for use in CAD/CAM of dental restorative prosthetic devices. To that end, the RGB-based scan obtains surface data (e.g., a margin), while the OCT scan penetrates the surface. The two scanners operate from within the same physical housing and preferably at the same time such that only one scanning pass (to obtain all necessary data) is required. The 3D data obtained from the OCT scan is registered with the 3D data obtained from the RGB-based scan by virtue of being captured using a common return path.Type: ApplicationFiled: June 9, 2022Publication date: September 22, 2022Inventors: Ye Li, Justin G. Graham, Rod A. Duncan, Greg R. Basile, Grant E. Kenworthy, Henley S. Quadling, Mark S. Quadling, Glen Freeman
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Patent number: 11382517Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device provides for more efficient transmission and capture of images. It integrates OCT scanning with RGB-based scanning. In operation, the device is used for recording topological characteristics of teeth, dental impressions, or stone models by digital methods and for use in CAD/CAM of dental restorative prosthetic devices. To that end, the RGB-based scan obtains surface data (e.g., a margin), while the OCT scan penetrates the surface. The two scanners operate from within the same physical housing and preferably at the same time such that only one scanning pass (to obtain all necessary data) is required. The 3D data obtained from the OCT scan is registered with the 3D data obtained from the RGB-based scan by virtue of being captured using a common return path.Type: GrantFiled: March 11, 2019Date of Patent: July 12, 2022Assignee: D4D Technologies, LLCInventors: Ye Li, Justin G. Graham, Rod A. Duncan, Greg R. Basile, Grant E. Kenworthy, Henley S. Quadling, Mark S. Quadling, Glen Freeman
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Patent number: 10888968Abstract: A milling machine calibration technique, and article of manufacture are described. The article comprises a calibration fixture, together with a calibration pin. The calibration fixture preferably is shaped as a cube, and each of the side faces of the cube comprise a set of indentations (dimples or features) that are configured in a predetermined pattern. A preferred pattern is a “5-dimple” pattern. To find a mapping between axis coordinates (of a mill spindle) and the mill mandrel at some orientation, the calibration fixture is inserted into the mandrel, and the calibration pin is inserted into a collet. Using an x-axis directional position error-based probing mechanism, the system then registers the exact position of each of the five (5) dimples on the surface of the die. Using the positional information so determined, spindle-mandrel spatial relationships for one or more orientations of the mandrel are then identified for calibration purposes.Type: GrantFiled: August 30, 2018Date of Patent: January 12, 2021Assignee: D4D Technologies, LLCInventors: Lasse H. Toimela, Rod A. Duncan
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Publication number: 20200288981Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device provides for more efficient transmission and capture of images. It integrates OCT scanning with RGB-based scanning. In operation, the device is used for recording topological characteristics of teeth, dental impressions, or stone models by digital methods and for use in CAD/CAM of dental restorative prosthetic devices. To that end, the RGB-based scan obtains surface data (e.g., a margin), while the OCT scan penetrates the surface. The two scanners operate from within the same physical housing and preferably at the same time such that only one scanning pass (to obtain all necessary data) is required. The 3D data obtained from the OCT scan is registered with the 3D data obtained from the RGB-based scan by virtue of being captured using a common return path.Type: ApplicationFiled: March 11, 2019Publication date: September 17, 2020Inventors: Ye Li, Justin G. Graham, Rod A. Duncan, Greg R. Basile, Grant E. Kenworthy, Henley S. Quadling, Mark S. Quadling, Glen Freeman
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Publication number: 20200070296Abstract: A milling machine calibration technique, and article of manufacture are described. The article comprises a calibration fixture, together with a calibration pin. The calibration fixture preferably is shaped as a cube, and each of the side faces of the cube comprise a set of indentations (dimples or features) that are configured in a predetermined pattern. A preferred pattern is a “5-dimple” pattern. To find a mapping between axis coordinates (of a mill spindle) and the mill mandrel at some orientation, the calibration fixture is inserted into the mandrel, and the calibration pin is inserted into a collet. Using an x-axis directional position error-based probing mechanism, the system then registers the exact position of each of the five (5) dimples on the surface of the die. Using the positional information so determined, spindle-mandrel spatial relationships for one or more orientations of the mandrel are then identified for calibration purposes.Type: ApplicationFiled: August 30, 2018Publication date: March 5, 2020Inventors: Lasse H. Toimela, Rod A. Duncan
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Publication number: 20190046302Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device has a reduced form factor as compared to prior devices, and it provides for more efficient transmission and capture of images.Type: ApplicationFiled: August 9, 2018Publication date: February 14, 2019Inventors: Ye Li, Gregory R. Basile, Rod A. Duncan, Justin G. Graham, Grant E. Kenworthy, Henley S. Quadling, Mark S. Quadling, Andrei Tchouprakov, Lasse H. Toimela
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Publication number: 20160330355Abstract: A technique to enable an existing monochrome camera in an intra-oral scanner to capture color images without making hardware changes to the camera. This operation is achieved by retrofitting a “tip” assembly of the scanner with red, green and blue light emitting diodes (LEDs), and then driving those diodes to illuminate the scene being captured by the scanner. Electronics in or associated with the scanner are operative to synchronize the LEDs to the frame capture of the monochrome camera in the device. A color image is created by combining the red-, green- and blue-illuminated images. Thus, color imagery is created from a monochrome camera and, in particular, by illuminating the screen with specific colors while the camera captures images. In this manner, single colored images are captured and combined into full color images. The system captures the color images with full resolution and sensitivity, thus producing higher quality full color images.Type: ApplicationFiled: March 9, 2016Publication date: November 10, 2016Inventors: Andrei Tchouprakov, Greg Basile, Mark S. Quadling, Henley S. Quadling, Rod Duncan, Ye Li, Grant Kenworthy
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Patent number: 9364300Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device captures images of an object of interest, e.g., patient teeth or associated anatomy, by projecting the light source as a first series of frames, and a second series of frames. The first series of frames projects first pattern data, and the second series of frames projects second data. The second series of frames are interleaved between frames in the first series of frames. The frames in the first series are partially-illuminated and are used to capture data for a 3D model. The frames in the second series are preferably fully-illuminated and are used to generate a live preview of the object. By displaying the live preview frames in juxtaposition to the 3D model, the operator is provided with visual feedback of the object.Type: GrantFiled: June 29, 2015Date of Patent: June 14, 2016Assignee: D4D Technologies, LLCInventors: Andrei Tchouprakov, Radu Gheorghe, Roman Sokolov, Mark Quadling, Henley Quadling, Rod Duncan, Ye Li
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Publication number: 20150297324Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device captures images of an object of interest, e.g., patient teeth or associated anatomy, by projecting the light source as a first series of frames, and a second series of frames. The first series of frames projects first pattern data, and the second series of frames projects second data. The second series of frames are interleaved between frames in the first series of frames. The frames in the first series are partially-illuminated and are used to capture data for a 3D model. The frames in the second series are preferably fully-illuminated and are used to generate a live preview of the object. By displaying the live preview frames in juxtaposition to the 3D model, the operator is provided with visual feedback of the object.Type: ApplicationFiled: June 29, 2015Publication date: October 22, 2015Inventors: Andrei Tchouprakov, Radu Gheorghe, Roman Sokolov, Mark Quadling, Henley Quadling, Rod Duncan, Ye Li
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Patent number: 9066772Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device captures images of an object of interest, e.g., patient teeth or associated anatomy, by projecting the light source as a first series of frames, and a second series of frames. The first series of frames projects first pattern data, and the second series of frames projects second data. The second series of frames are interleaved between frames in the first series of frames. The frames in the first series are partially-illuminated and are used to capture data for a 3D model. The frames in the second series are preferably fully-illuminated and are used to generate a live preview of the object. By displaying the live preview frames in juxtaposition to the 3D model, the operator is provided with visual feedback of the object.Type: GrantFiled: February 4, 2014Date of Patent: June 30, 2015Assignee: D4D Technologies, LLCInventors: Andrei Tchouprakov, Radu Gheorghe, Roman Sokolov, Mark Quadling, Henley Quadling, Rod Duncan, Ye Li
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Publication number: 20140248576Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device captures images of an object of interest, e.g., patient teeth or associated anatomy, by projecting the light source as a first series of frames, and a second series of frames. The first series of frames projects first pattern data, and the second series of frames projects second data. The second series of frames are interleaved between frames in the first series of frames. The frames in the first series are partially-illuminated and are used to capture data for a 3D model. The frames in the second series are preferably fully-illuminated and are used to generate a live preview of the object. By displaying the live preview frames in juxtaposition to the 3D model, the operator is provided with visual feedback of the object.Type: ApplicationFiled: February 4, 2014Publication date: September 4, 2014Applicant: D4D Technologies, LLCInventors: Andrei Tchouprakov, Radu Gheorghe, Roman Sokolov, Mark Quadling, Henley Quadling, Rod Duncan, Ye Li
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Publication number: 20140189991Abstract: A milling machine for a dental item comprises a six (6) axis motion system. A workpiece is fixed in space. Each of a pair of opposed tool spindles operates in 3 DOF, with an x-axis (laterally, left or right) being along an axis of each working tool, a rotational (theta (?)) axis (rotationally in or out), and a z-axis (up or down). On each respective side of the block, the x-axis rides on a ?-axis, and the ?-axis rides on the z-axis. Each z-axis supports a first carriage adapted to move up or down along the z-axis, and the first carriage supports a motor having a shaft. The shaft's rotational axis is the ?-axis. A second carriage is mounted on the shaft for rotation about the ?-axis. A spindle assembly is mounted on the second carriage for lateral (left or right) movement along the x-axis carried by the ?-axis.Type: ApplicationFiled: October 8, 2013Publication date: July 10, 2014Applicant: D4D Technologies, LLCInventors: Rod Duncan, Mark Quadling, Henley Quadling, Chris Partee, Adam Tibbitts
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Patent number: 7789601Abstract: A mill blank mandrel may rigidly secure machinable material for a machining process. The mandrel may be freely and easily inserted in a corresponding mandrel socket and secured without the use of a tool. The mandrel may be detected and verified when inserted in the mandrel socket.Type: GrantFiled: June 14, 2004Date of Patent: September 7, 2010Assignee: D4D Technologies, LLCInventors: Jeffrey Prince, Rod Duncan, Branko Bem
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Patent number: 7670272Abstract: An improved milling machine makes use of individually controlled x-axis, y-axis, and z-axis carriages. These carriages provide positive and precise control of the position of the cutting tools and the blank to be cut. The tools are located in spindles that are moved in the x-axis. A work piece or blank is manipulated in the y-axis and the z-axis. The tools are offset in the x-axis. Lights on a work space door are used to signal the condition of the mill machine and the milling operation. A tool changer allows the tools to be changed to accommodate other materials. A camera or other sensor is used to detect the location and wear on the tools.Type: GrantFiled: January 27, 2009Date of Patent: March 2, 2010Assignee: D4D Technologies, LLCInventors: Mark S. Quadling, Henley S. Quadling, Rod Duncan
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Publication number: 20090148252Abstract: An improved milling machine makes use of individually controlled x-axis, y-axis, and z-axis carriages. These carriages provide positive and precise control of the position of the cutting tools and the blank to be cut. The tools are located in spindles that are moved in the x-axis. A work piece or blank is manipulated in the y-axis and the z-axis. The tools are offset in the x-axis. Lights on a work space door are used to signal the condition of the mill machine and the milling operation. A tool changer allows the tools to be changed to accommodate other materials. A camera or other sensor is used to detect the location and wear on the tools.Type: ApplicationFiled: January 27, 2009Publication date: June 11, 2009Applicant: D4D TECHNOLOGIES, LLCInventors: Mark S. Quadling, Henley S. Quadling, Rod Duncan
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Patent number: D862697Type: GrantFiled: August 10, 2017Date of Patent: October 8, 2019Assignee: D4D Technologies, LLCInventors: Grant E. Kenworthy, Rod A. Duncan, George R. Kline
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Patent number: D918209Type: GrantFiled: March 8, 2019Date of Patent: May 4, 2021Assignee: D4D Technologies, LLCInventors: Grant E. Kenworthy, Rod A. Duncan, Lasse H. Toimela