Patents Examined by Courtney D Thomas
  • Patent number: 10339673
    Abstract: Disclosed is a dual-energy ray imaging method and system. The method comprises: calculating the mass thicknesses of the materials in the overlapped area of two materials by using a calibrated surface fitting method, and then decomposing a pair of original high-energy and low-energy data for this pixel into two high-low-energy data sets corresponding to the two materials, and finally calculating and acquiring the composition result of different materials for each pixel. The disclosure is especially advantageous in that the problem of error recognition of materials due to the two overlapped materials can be eliminated and the stratified imaging of multiple materials can be achieved, thereby improving the accuracy of the substance recognition and reducing the rate of false positive and false negative which is very important to the applications in the field of security check and anti-smuggling.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: July 2, 2019
    Assignees: Tsinghua University, Nuctech Company Limited
    Inventors: Liang Li, Zhiqiang Chen, Kejun Kang, Li Zhang, Ziran Zhao, Yuxiang Xing, Yongshun Xiao, Jianping Gu, Juan Zheng
  • Patent number: 10330799
    Abstract: An X-ray image pickup system (10) includes an X-ray source (16), an image pickup panel (12), a scintillator (13), and an X-ray control unit (14E). The image pickup panel includes a photoelectric conversion element (26), a capacitor (50), a thin film transistor (24), and TFT control units (14A, 14B, 14F). To the photoelectric conversion element (26), scintillation light is projected. The capacitor (50) is connected to the photoelectric conversion element (26), and accumulates charges. The thin film transistor (24) is connected to the capacitor (50). The TFT control units (14A, 14B, 14F) control an operation of the thin film transistor (24). The thin film transistor (24) includes a semiconductor active layer (32) made of an oxide semiconductor. The X-ray control unit (14E) intermittently projects X-ray to the X-ray source (16). The TFT control units (14A, 14B, 14F) cause the thin film transistor (24) to operate when the X-ray is not projected, so as to read out the charges accumulated in the capacitor (50).
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: June 25, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shigeyasu Mori, Kazuhide Tomiyasu
  • Patent number: 10327718
    Abstract: Disclosed is a dental X-ray imaging device having a curved detector. The dental X-ray imaging device according to the present invention comprises: an X-ray source for radially emitting X-rays; and a curved detector formed in a cylindrical two-dimensional curved shape or a round three-dimensional curved shape, which is arranged to be spaced apart at a predetermined distance from the X-ray source and has substantially the same radius of curvature as the predetermined distance.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: June 25, 2019
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Tae Woo Kim, Byung Hun Park, Sung Il Choi
  • Patent number: 10314552
    Abstract: A bed apparatus according to one embodiment, includes a top plate, a first slide actuator, an elevating actuator, and a second slide actuator. The first slide actuator supports the top plate to be slidable in the longitudinal direction. The elevating actuator supports the first slide actuator to be movable in the vertical direction, and is installed on the floor. The second slide actuator is provided between the first slide actuator and the elevating actuator and supports the first slide actuator such that the first slide actuator is slidable interlockingly with the vertical movement of the elevating actuator.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: June 11, 2019
    Assignee: Toshiba Medical Systems Corporation
    Inventor: Masayuki Wakahara
  • Patent number: 10315048
    Abstract: The present disclosure provides a radiation method for radiating a fluence map having a zero-fluence region under a movement of MLC (Multi-Leaf Collimator) includes a determining step of determining at least one basic fluence map from the fluence map. The basic fluence map includes a first non-zero fluence region and a second non-fluence region having the zero-fluence region therebetween. The radiation method includes a first radiating step including radiating the first non-zero fluence region, along with moving a first group of leaf pairs and moving a vertical jaw to shade the first group of leaf pairs, and a second radiating step including radiating the second non-zero fluence region, along with moving a second group of leaf pairs and withdrawing the vertical jaw to expose the second group of leaf pairs.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: June 11, 2019
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventor: Weiyuan Wang
  • Patent number: 10302578
    Abstract: Methods and system for decomposing a high-energy dual-energy X-ray CT material are disclosed. In the method, two types of effect such as Compton effect and electron pairing effect which dominates are reserved and the influence of the other effect such a photoelectric effect is removed so as to improve the accuracy of the material decomposition. The unique advantage of the present disclosure is to effectively remove the error of the calculated atomic number Z due to directly selecting two effects during processes of material decomposition in the conventional dual-energy CT method. This may greatly improve the accuracy of dual-energy CT identification of the material, and it is important to improve the conventional dual-use CT imaging system applications, such as clinical therapy, security inspection, industrial non-destructive testing, customs anti-smuggling and other fields.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: May 28, 2019
    Assignees: Tsinghua University, Nuctech Company Limited
    Inventors: Liang Li, Zhiqiang Chen, Kejun Kang, Li Zhang, Ziran Zhao, Yuxiang Xing, Jianmin Li, Yulan Li, Tiao Zhao
  • Patent number: 10299743
    Abstract: According to some aspects, an x-ray apparatus for imaging and/or radiation therapy is provided, the x-ray apparatus comprises an electron source capable of generating electrons, at least one first target arranged to receive electrons from the electron source, the at least one first target comprising material that, in response to being irradiated by the electrons, emits broad spectrum x-ray radiation, at least one second target arranged to receive at least some of the broad spectrum x-ray radiation, the at least one second target comprising material that, in response to irradiation by broad spectrum x-ray radiation from the first target, emits monochromatic x-ray radiation, and at least one detector positioned to detect at least some of the monochromatic x-ray radiation emitted from the at least one second target.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: May 28, 2019
    Assignee: Imagine Scientific, Inc.
    Inventor: Eric H. Silver
  • Patent number: 10300303
    Abstract: An image-guided therapy delivery system includes a therapy generator configured to generate a therapy beam directed to a time-varying therapy locus within a therapy recipient, an imaging input configured to receive imaging information about a time-varying target locus within the therapy recipient, and a therapy controller. The therapy generator includes a therapy output configured to direct the therapy beam according to a therapy protocol. The therapy controller is configured to automatically generate a predicted target locus using information indicative of an earlier target locus extracted from the imaging information, a cyclic motion model, and a specified latency, and automatically generate an updated therapy protocol to align the time-varying therapy locus with the predicted target locus.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: May 28, 2019
    Assignees: Elekta LTD., Elekta, Inc.
    Inventors: Rupert Archie Brooks, Michel Moreau, Leila Pishdad
  • Patent number: 10295700
    Abstract: A system for a downhole tool includes an X-ray generator that outputs X-ray radiation into a surrounding sub-surface formation using electrical power received from a power supply and a detector device adjacent the X-ray generator. The detector device includes a first detector with a first radiation sensitivity that outputs a first measurement signal based on interaction between a first portion of the X-ray radiation and the first detector. The detector device also includes a second detector with a second radiation sensitivity adjacent the first detector, where the second detector outputs a second measurement signal based on interaction between a second portion of the X-ray radiation and the second detector.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: May 21, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Sicco Beekman, Christian Stoller
  • Patent number: 10297050
    Abstract: Disclosed is a method for positioning a target in a three-dimensional CT image and a CT system for security inspection. The method includes: displaying a three-dimensional CT image; receiving a selection by a user of at least one area of the three-dimensional CT image at a viewing angle; generating at least one set of three-dimensional objects in a depth direction based on the selection; and determining a target object from the set. With the above technical solutions, the user may be facilitated in marking a suspected object in a CT image in a quick manner.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: May 21, 2019
    Assignee: NUCTECH COMPANY LIMITED
    Inventors: Zhiqiang Chen, Li Zhang, Shuo Wang, Yunda Sun, Qingping Huang, Zhi Tang
  • Patent number: 10292674
    Abstract: A method and a system are disclosed for image acquisition, in which the protocol for controlling the CT scanner is computed automatically. The system includes a facility, which includes at least one CT scanner; a central PACS system in which image data and assigned metadata are stored as image data information, acquired with the facility; and an analysis unit, in terms of programming technology and/or circuit technology, for analyzing the captured image data information to automatically compute therefrom, the specific operating conditions and the facility-specific protocol parameters for the CT scanner protocol.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: May 21, 2019
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventors: Stefan Kaepplinger, Robert Lapp, Rainer Raupach
  • Patent number: 10285664
    Abstract: Disclosed herein are an X-ray imaging apparatus for photographing a marker provided in an X-ray detector with a camera to acquire information about the distance between the X-ray detector and an X-ray source or information about the pose of the X-ray detector at low cost The X-ray imaging apparatus may include an X-ray source that generates X-rays and irradiates the X-rays. A photographing device installed in the X-ray source photographs a marker image. A controller outputs, when a marker of a plurality of markers constituting a multi-marker array formed in a surface of an X-ray detector is not detected from the marker image, a notice informing that no marker is detected. The controller detects a single marker from another marker image photographed after the notice informing that the marker is not detected is outputted.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: May 14, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Ha Song, Jae Hyun Lim
  • Patent number: 10285252
    Abstract: Provided is a dual-energy ray scanning system, which includes a ray source for alternately emitting a high energy ray and a low energy ray; a filter includes a low energy filtering element and a low energy transmitting element; a control device for synchronously controlling the ray source and the filter, and the low energy filtering element includes a plurality of filter sheets, the low energy transmitting element comprises a plurality of transmission sheets, the filter sheets and the transmission sheets are arranged alternately and surround the ray source to form a cavity, and the ray source is located on a central axis of the cavity.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: May 7, 2019
    Assignee: NUCTECH COMPANY LIMITED
    Inventors: Yu Hu, Shangmin Sun, Juan Zheng, Bicheng Liu
  • Patent number: 10272266
    Abstract: The present invention relates to correlating a position of a radiation beam with a position of a target to be irradiated which is contained in a structure having a repetitive motion comprising a plurality of successive motion cycles. External position data is acquired, which describes a position the structure during different motion cycles and/or time periods. Target data is acquired, which describe a position of the target during the motion cycles and/or time periods. A correlation model is generated, which correlates the external position and the target position. A predicted target position during a motion cycle is determined based on the correlation model and acquire external position data. Primary verification data is determined that describes an difference between actual and predicted target position. When the prediction is accurate, a further prediction and verification of the target position in later motion cycles can be performed.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: April 30, 2019
    Assignee: Brainlab AG
    Inventors: Stephan Froehlich, Kajetan Berlinger, Richard Wohlgemuth
  • Patent number: 10265034
    Abstract: Disclosed herein is a mobile x-ray imaging apparatus having an improved structure to reinforce security of an x-ray detector. A mobile x-ray imaging apparatus includes an x-ray source configured to generate and radiate x-rays, one or more x-ray detectors provided to detect the x-rays radiated from the x-ray source, a storage unit having one or more slots in which the one or more x-ray detectors are stored, and one or more locking units installed in the storage unit to limit withdrawal of the one or more x-ray detectors stored in the one or more slots, wherein the one or more locking units may include a pressing member provided to be pressable and one or more rotating members configured to directly receive a pressing force of the pressing member and provided to rotate and protrude toward an inside of the one or more slots.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: April 23, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae Won Nam, Ku Il Jang, Chang Jin Yang
  • Patent number: 10251617
    Abstract: An X-ray fluoroscopic imaging apparatus controls movement of shield plates so that a length of a first pre-image in an x direction is larger than a length of a strip image. A capturing position of the first pre-image is adjusted so that an upper end of the first pre-image matches an upper end of a capturing range of a long image. Thus, where a long region is set on the basis of the first pre-image at present, it is possible to check whether a desired X-ray image is included in a strip image. It is possible to correct a position of an imaging system to an appropriate position as an imaging start point by referring to an X-ray image included in the first pre-image having a large amount of information. Therefore, it is possible to acquire a long image appropriate for diagnosis through slot imaging using this apparatus.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: April 9, 2019
    Assignee: Shimadzu Corporation
    Inventor: Tasuku Saito
  • Patent number: 10238358
    Abstract: Systems and methods of estimating radiation dose include obtaining at least one radiation exposure value from a location marked on a patient model. A radiation exposure of the patient is estimated using a dose model which includes the patient model. At least one correction factor is calculated based upon the radiation exposure value and the estimation of radiation exposure using the dose model. The at least one correction factor is applied to the dose model and a refined estimation of radiation exposure is produced based upon the at least one correction factor and the dose model.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: March 26, 2019
    Assignee: General Electric Company
    Inventor: Lionel Francois Desponds
  • Patent number: 10229336
    Abstract: An inspection method and system for inspecting whether there is any liquor in goods is provided. The method includes: acquiring a radiation image of goods being inspected; processing on the radiation image to obtain an ROI; inspecting on the ROI using a liquor goods inspection model to determine if the ROI of the radiation image contains liquor goods. The above solution performs liquor inspection on scanned images of goods, especially containers, so as to intelligently assist the image inspectors.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: March 12, 2019
    Assignee: Nuctech Company Limited
    Inventors: Zhiqiang Chen, Li Zhang, Ziran Zhao, Yaohong Liu, Duokun Zhang, Jianping Gu, Qiang Li, Jian Zhang
  • Patent number: 10219766
    Abstract: An x-ray imaging apparatus and a method of controlling the x-ray imaging apparatus are provided. The x-ray imaging apparatus includes x-ray detectors, and a user interface configured to display sizes of the x-ray detectors, and display a modality in which an x-ray detector, among the x-ray detectors, is usable, while a size of the x-ray detector is displayed.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: March 5, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong Seo Park, Sung Nam Kim, Ji Hye Kim, Jong Hyun Shin, Eun Jae Lee
  • Patent number: 10217596
    Abstract: The present disclosure relates to multi-layer X-ray sources having decreased hydrogen within the layer stack and/or tungsten carbide inter-layers between the primary layers of X-ray generating and thermally-conductive materials. The resulting multi-layer target structures allow increased X-ray production, which may facilitate faster scan times for inspection or examination procedures.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: February 26, 2019
    Assignee: General Electric Company
    Inventors: Yong Liang, Vance Scott Robinson