X-ray Or Gamma-ray System Patents (Class 250/370.09)
  • Patent number: 10321883
    Abstract: A mobile X-ray apparatus includes: an X-ray radiation device; a controller configured to control the X-ray radiation device; a power supply configured to supply operating power to the X-ray radiation device and the controller via a lithium ion battery and control overcurrent occurring during X-ray emission by the X-ray radiation device; and a charger configured to charge the power supply. Each of the controller, the power supply, and the charger is embodied in a physically separate module, and each of the power supply and the charger is encased in a metal case.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: June 18, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Myeong-je Kim
  • Patent number: 10306168
    Abstract: To provide a novel semiconductor device, a semiconductor device capable of operating at a high speed, or a semiconductor device with reduced area, or a semiconductor device with low power consumption. The semiconductor device which has a function of taking a moving image includes a pixel portion including a plurality of pixels, a first circuit, and a second circuit. Each of the plurality of pixels has a function of converting irradiation light to generate first data and a function of generating second data corresponding to a difference between the first data in a first frame period and the first data in a second frame period. The first circuit has a function of converting the second data into a digital signal and outputting the digital signal as compressed data of the moving image. The second circuit has a function of controlling output of the compressed data.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: May 28, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Takuro Ohmaru
  • Patent number: 10295681
    Abstract: According to one embodiment, a radiation detector includes a stacked body. The stacked body includes a first scintillator layer, a first conductive layer, a second conductive layer and an organic semiconductor layer. The second conductive layer is provided between the first scintillator layer and the first conductive layer. The organic semiconductor layer is provided between the first conductive layer and the second conductive layer. The organic semiconductor layer includes a first element. The first element includes at least one selected from the group consisting of boron, gadolinium, helium, lithium, and cadmium.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: May 21, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Satomi Taguchi, Atsushi Wada, Isao Takasu, Naoto Kume, Mitsuyoshi Kobayashi
  • Patent number: 10292669
    Abstract: To improve performance in Photon Counting CT, pixel miniaturization, a reduction in circuit dead time, and dealing with scattered radiation and charge sharing are important. In addition, because the number of circuits increases, a reduction in power consumption of each circuit is important. Under these constraints, circuitry that deals with the scattered radiation is provided. Each pixel includes a circuit that determines whether radiation has been detected by another, adjacent pixel at the same time, and counters that count the radiation are switched on the basis of the result of the determination. On the basis of this result, counts of non-coincident events are primarily used, and coincident counts are used after being corrected, for reconstruction data.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: May 21, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Takafumi Ishitsu, Isao Takahashi, Kazuma Yokoi
  • Patent number: 10276611
    Abstract: A photosensor substrate includes: a substrate 31; gate lines arranged on the substrate 31 and extend in a first direction; source lines Si arranged on the substrate 31 and extend in a second direction; transistors arranged in correspondence to points of intersection between the source lines and the gate lines, respectively, and are connected therewith; an insulating layer that covers the transistors; photoelectric conversion elements 4 arranged in correspondence to the points of intersection between the source lines and the gate lines, and are connected with the transistors via first contact holes CH3 in the insulating layer, and bias lines 8 that extend in the second direction, and are connected with the photoelectric conversion elements 4. The source lines are connected with the transistors via second contact holes CH2 in the insulating layer, and have a line width greater than a line width of the bias lines 8.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: April 30, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Fumiki Nakano, Tadayoshi Miyamoto
  • Patent number: 10254417
    Abstract: In a radiation detector, a Schottky electrode is formed such that an interdiffusion coefficient between the material of an outermost surface electrode formed on the Schottky electrode and the material of the Schottky electrode is smaller than an interdiffusion coefficient between the material of the outermost surface electrode and Al (aluminum). Consequently, the material of the outermost surface electrode does not diffuse into the Schottky electrode, and Schottky functions can be maintained, and at the same time, the material of the Schottky electrode does not diffuse into the outermost surface electrode, and the outermost surface electrode can be prevented from alloying.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: April 9, 2019
    Assignee: Shimadzu Corporation
    Inventors: Satoshi Tokuda, Toshinori Yoshimuta, Hiroyuki Kishihara, Yukihisa Wada
  • Patent number: 10254315
    Abstract: A current sensor comprises: a plurality of magnetoresistance elements whose resistance value changes by application of an current-induced magnetic field from a current-to-be-measured; and a selection circuit that selects one magnetoresistance element from these plurality of magnetoresistance elements and outputs a signal of a selected magnetoresistance element. In the plurality of magnetoresistance elements, relationships between a magnitude of the applied current-induced magnetic field and the resistance value are different from each other.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: April 9, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshihiro Higashi, Yoshihiko Fuji, Hideaki Fukuzawa, Tetsuro Wamura, Motomichi Shibano
  • Patent number: 10231678
    Abstract: A radiation detector (16) having a first detector layer (24) and a second detector layer (26) encircles an examination region (14). Detectors of the first layer include scintillators (72) and light detectors (74), such as avalanche photodiodes. The detectors of the second detector layer (26) include scintillators (62) and optical detectors (64). The scintillators (72) of the first layer have a smaller cross-section than the scintillators (62) of the second layers. A group, e.g., nine, of the first layer scintillators (72) overlay each second group scintillator (62). In a CT mode, detectors of the first layer detect transmission radiation to generate a CT image with a relatively high resolution and the detectors of the second layer detect PET or SPECT radiation to generate nuclear data for reconstruction into a lower resolution emission image. Because the detectors of the first and second layers are aligned, the transmission and emission images are inherently aligned.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: March 19, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Christoph Herrmann
  • Patent number: 10219759
    Abstract: A method includes performing a contrast enhanced computed tomography (CT) scan of tissue of interest of a subject, with an imaging system having a radiation source and a detector array, in which a peak contrast enhancement of the tissue of interest, a full range of motion of the tissue of interest, and an entire volume of interest of the tissue of interest are concurrently imaged during a single rotation of the radiation source and the detector array of the imaging system over an entire or a predetermined sub-portion of a breathing cycle.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: March 5, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Paul Harvey Klahr, Ekta Dhawal Dharaiya, Scott Kenneth Pohlman, Randall Peter Luhta
  • Patent number: 10224353
    Abstract: Disclosed are an array substrate, a manufacturing method thereof, a sensor and a detection device. The array substrate includes: a base substrate; a thin-film transistor (TFT) being disposed on the base substrate and including a source electrode and an active layer; a passivation layer disposed on the TFT; a first metal layer disposed on the passivation layer; an insulating layer disposed on the first metal layer; a through hole structure running through the insulating layer, the first metal layer and the passivation layer; and a detection unit being disposed on the insulating layer and including a second metal layer, wherein the second metal layer makes direct contact with the source electrode via the through hole structure.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: March 5, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., KA IMAGING INC.
    Inventor: Chia Chiang Lin
  • Patent number: 10201065
    Abstract: A radiographic image capturing apparatus has a radiation source device including a radiation source for outputting radiation, and a detector device including a radiation detector for detecting radiation that is transmitted through a subject when the subject is irradiated with radiation by the radiation source, and converting the detected radiation into a radiographic image. At least one of the radiation source device and the detector device has an electric power supply limiting unit for limiting supply of electric power, and the electric power supply limiting unit controls supply of electric power between the radiation source device and the detector device, depending on timing of an image capturing process.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: February 5, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Yasunori Ohta, Naoyuki Nishino, Haruyasu Nakatsugawa
  • Patent number: 10185039
    Abstract: A detector module for an x-ray detector is disclosed. In an embodiment, the detector module includes a plurality of sensor boards arranged adjacent to one another on a module carrier. Each sensor board is arranged in a stack formation and includes a sensor layer with a sensor surface, to which a bias voltage can be applied in order to detect x-ray radiation. A voltage supply line is arranged in the stack formation along a lateral surface of the stack formation of each sensor board in order to apply the bias voltage. Moreover, an x-ray detector is disclosed for recording an image of an object irradiated by x-ray radiation, the x-ray detector including a plurality a number of detector modules arranged adjacent to one another.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: January 22, 2019
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Thorsten Ergler, Thomas Reichel, Kurt Stadlthanner, Jan Wrege
  • Patent number: 10163969
    Abstract: This invention relates to a direct conversion X-ray sensor and to a method of manufacturing the same. This X-ray sensor includes an array substrate including a pixel electrode formed so as to protrude from a surface thereof at a pixel region; a photoconductive substrate including an upper electrode, and a photoconductive layer formed on a surface of the upper electrode so as to be in contact with the pixel electrode and having a PIN diode structure; and a bonding material filling a space around a contact region of the pixel electrode and the photoconductive layer so as to bond the array substrate and the photoconductive substrate.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: December 25, 2018
    Assignees: Rayence Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Sung Kyn Heo, Ho Seok Lee
  • Patent number: 10159457
    Abstract: An X-ray diagnostic apparatus comprises: an X-ray detector including a first detector and a second detector capable of simultaneously detecting X-rays irradiated from an X-ray tube; and processing circuitry configured to correct, by using information of a second image that is based on an output from the second detector, a first image that is based on an output from the first detector.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: December 25, 2018
    Assignee: Canon Medical Systems Corporation
    Inventors: Akihito Takahashi, Haruki Iwai
  • Patent number: 10156641
    Abstract: A radiation image sensing apparatus includes an image sensing, a circuit component, a supporting plate including first and second faces and configured to support the image sensing panel with the first face and support the circuit component with the second face, a connecting portion configured to connect the image sensing panel and the circuit component, and a housing configured to enclose the image sensing panel, the circuit component, the supporting plate and the connecting portion. An outer periphery of the supporting plate includes a concave portion and a projecting portion, and the connecting portion connects the image sensing panel and the circuit component through outside the concave portion. The outer edge of the concave portion is positioned inside an outer edge of the image sensing panel upon orthogonal projection onto the first face.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: December 18, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Youjirou Hiratsuka, Takahiro Koyanagi, Hiroto Kondo
  • Patent number: 10136868
    Abstract: Some embodiments are associated with an X-ray source configured to generate X-rays directed toward an object, wherein the X-ray source is to: (i) generate a first energy X-ray pulse, (ii) switch to generate a second energy X-ray pulse, and (iii) switch back to generate another first energy X-ray pulse. A detector may be associated with multiple image pixels, and the detector includes, for each pixel: an X-ray sensitive element to receive X-rays; a first storage element and associated switch to capture information associated with the first energy X-ray pulses; and a second storage element and associated switch to capture information associated with the second energy X-ray pulse. A controller may synchronize the X-ray source and detector.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: November 27, 2018
    Assignee: General Electric Company
    Inventors: Yun Zou, John Michael Sabol, Brian David Yanoff, Hao Lai, Biju Jacob, Katelyn Rose Nye, Feng Chen
  • Patent number: 10132944
    Abstract: A method for calibrating an ionizing radiation detector, with the aim of determining a correction factor in order to establish an amplitude-energy correspondence. The invention first relates to a method for calibrating a device for detecting ionizing radiation, the detector comprising a semiconductor or scintillator detection material capable of generating a signal S of amplitude A upon interaction between ionizing radiation and the detection material, the method including the determination of a weighting factor at the amplitude A.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: November 20, 2018
    Assignees: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, IDEMIA IDENTITY & SECURITY FRANCE
    Inventors: Sylvain Stanchina, Guillaume Montemont
  • Patent number: 10126434
    Abstract: A radiation image sensing apparatus includes an image sensing, a circuit component, a supporting plate including first and second faces and configured to support the image sensing panel with the first face and support the circuit component with the second face, a connecting portion configured to connect the image sensing panel and the circuit component, and a housing configured to enclose the image sensing panel, the circuit component, the supporting plate and the connecting portion. An outer periphery of the supporting plate includes a concave portion and a projecting portion, and the connecting portion connects the image sensing panel and the circuit component through outside the concave portion. The outer edge of the concave portion is positioned inside an outer edge of the image sensing panel upon orthogonal projection onto the first face.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: November 13, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Youjirou Hiratsuka, Takahiro Koyanagi, Hiroto Kondo
  • Patent number: 10119859
    Abstract: A radiation imaging apparatus includes a radiation detection panel, a housing configured to accommodate the radiation detection panel, and a buffer member. The housing has an opening in a corner. The buffer member includes a first portion fixed inside the housing and a second portion protruding from the opening of the housing to an outside of the housing. An elastic modulus of the second portion of the buffer member is lower than an elastic modulus of a portion of the housing which forms the opening.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: November 6, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masataka Suzuki, Hidetomo Suwa, Kensuke Kobayashi
  • Patent number: 10105114
    Abstract: An electronic cassette comprises a main battery which is detachably attached to a battery loading unit, and a sub-battery which supplies electricity to a bias power circuit and so on in substitution for the main battery. A power source selector changes the power source to the sub-battery from the main battery when it is judged that a replacement operation of the main battery is started. Since supply of the electricity to the bias power circuit is continued, and the bias voltage continues being applied to a photoelectric converter without a break, there is no need to perform a photoelectric conversion stabilizing process and an offset correction image detecting process after turning on of the main power. Therefore, a start-up time TR2 is largely shortened from a start-up time TR1.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: October 23, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Sho SHimizukawa, Makoto Kitada, Jun Enomoto
  • Patent number: 10101476
    Abstract: Provided are an X-ray data processing apparatus and a method and a program therefor which can eliminate the influence of the phenomenon that the statistical variation of a count value after distribution is estimated differently from that at another position and can prevent the influence of correction from remaining. An X-ray data processing apparatus 200 that corrects the count value of X-ray intensity detected by a pixel array type detector includes a storage unit 220 to store a correspondence relationship of the shape and the position of a virtual pixel with respect to the shape and the position of an actual pixel, and a distribution unit 260 to distribute the count value of the actual pixel to the virtual pixel using a correspondence relationship in which randomness is provided to the stored correspondence relationship, and outputs the count value distributed to the virtual pixel as a correction result.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: October 16, 2018
    Assignee: RIGAKU CORPORATION
    Inventors: Takuto Sakumura, Yasukazu Nakaye
  • Patent number: 10096642
    Abstract: Provided are a photoelectric conversion device, a method of manufacturing the photoelectric conversion device, and an X-ray image detector. A photoelectric conversion device at least includes a photodiode device. The photodiode device includes a lower electrode and an upper electrode, and a photoelectric conversion layer put between the lower and upper electrodes, where the photoelectric conversion layer includes a patterned edge surface, is smaller in size than the lower electrode and is placed on a surface of the lower electrode. The photodiode device further includes a protecting film covering at least the patterned edge surface of the photoelectric conversion layer. The protecting film except for an area where a contact hole is formed and the lower electrode are formed with a same-shaped pattern.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: October 9, 2018
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventor: Takayuki Ishino
  • Patent number: 10070832
    Abstract: An electronic cassette comprises a main battery which is detachably attached to a battery loading unit, and a sub-battery which supplies electricity to a bias power circuit and so on in substitution for the main battery. A power source selector changes the power source to the sub-battery from the main battery when it is judged that a replacement operation of the main battery is started. Since supply of the electricity to the bias power circuit is continued, and the bias voltage continues being applied to a photoelectric converter without a break, there is no need to perform a photoelectric conversion stabilizing process and an offset correction image detecting process after turning on of the main power. Therefore, a start-up time TR2 is largely shortened from a start-up time TR1.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: September 11, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Sho SHimizukawa, Makoto Kitada, Jun Enomoto
  • Patent number: 10073180
    Abstract: A radiation imaging apparatus includes a housing having a first plate portion and a second plate portion which oppose each other, a sensor panel arranged between the first plate portion and the second plate portion, and having a sensor array in which a plurality of sensors are arrayed, a scintillator arranged between the sensor panel and the second plate portion, a supporting portion arranged between the scintillator and the second plate portion, and configured to support the scintillator, and a buffer portion arranged between the sensor panel and the first plate portion. In orthographic projection to the first plate portion, an inner edge of the buffer portion is fitted between an outer edge of an imaging area of the sensor array and an outer edge of the scintillator.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: September 11, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masaaki Kobayashi, Kensuke Kobayashi, Youjirou Hiratsuka, Ryo Suzaki
  • Patent number: 10068679
    Abstract: Provided is a scintillator panel realizing reduced image unevenness and the like by virtue of having a cushioning layer between a support and a phosphor. The cushioning layer absorbs irregularities on the phosphor layer when the scintillator panel is compression bonded to a planar light-receiving element and thereby allows the phosphor layer to be in contact with the planar light-receiving element without any gaps in the interface. The scintillator panel includes, in the order named, a support, a cushioning layer disposed on a surface of the support, and a phosphor layer deposited on the surface of the cushioning layer, the cushioning layer having a specific thickness, the phosphor layer being configured to be placed into uniform contact with a surface of a planar light-receiving element when the phosphor layer is pressed against the planar light-receiving element by the application of a pressure from the support side.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: September 4, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Tadashi Arimoto, Hiromichi Shindou, Atsushi Hasegawa
  • Patent number: 10070082
    Abstract: A radiation imaging apparatus that has a plurality of pixels capable of outputting an image signal in accordance with an irradiation of radiation comprises a photoelectric conversion unit which has a first capacitance and a second capacitance as charge accumulation capacitances and a gain correction unit configured to correct a pixel value in relation to a dose of the irradiated radiation based on an image signal outputted in accordance with a charge accumulated by the photoelectric conversion unit. The gain correction unit changes an interval of gain correction points at which to perform correction in accordance with a switch from a first capacitance to a second capacitance.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: September 4, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Akira Tsukuda
  • Patent number: 10061036
    Abstract: A radiation detector includes a substrate, a plurality of device sections each disposed separately from the substrate and each including a photoelectric conversion device, a buried layer formed in a region between the device sections, and a wavelength conversion layer that is formed on the plurality of device sections and converts entered radiation into light. Any of the device sections includes a first surface that faces the wavelength conversion layer, and a second surface that faces the substrate, and an upper end of the buried layer is disposed at a position higher than the second surface of the any of the device sections.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: August 28, 2018
    Assignee: SONY CORPORATION
    Inventors: Takahiro Igarashi, Yusuke Oyama, Shusaku Yanagawa
  • Patent number: 10061042
    Abstract: A radiation imaging apparatus includes a housing including an incident surface of radiation, an imaging panel stored in the housing and including an effective region for detecting radiation incident through the incident surface, a buffer member arranged between the incident surface and the imaging panel, and an electrically conductive member fixed to the buffer member. An edge of the electrically conductive member surrounds an edge of the effective region in a planar view with respect to the incident surface.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: August 28, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masataka Suzuki, Motoki Tagawa, Hiroto Kondo, Shinichi Nishimura, Takashi Sato
  • Patent number: 10054651
    Abstract: A data detection device is used in combination with a magnetic resonance imaging (MRI) apparatus. A magnetic field detection unit (34) serves to detect a temporally varying magnetic field generated by the MRI apparatus, and a timestamping unit (35) generates magnetic field detection timestamps in dependence of the detected temporally varying magnetic field. This allows determining a temporal relation to acquired MRI data.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: August 21, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Bjoern Weissler, Manfred Bruno Zinke
  • Patent number: 10048216
    Abstract: An X-ray analyzer includes: an excitation source for exciting a sample to radiate a characteristic X-ray; an X-ray detector that detects the characteristic X-ray; a collimator; at least one window that is provided between the sample and the X-ray detector and allows the characteristic X-ray to pass through; and a cooling unit that cools the window, wherein the window is laminated with one or more layer of an aluminum film and one or more layer of an insulating film, wherein a total thickness of the aluminum film of the at least one window is equal to or greater than 150 nm and is less than 300 nm, and wherein a size of the collimator is set such that a quantity of radiant heat to the X-ray detector of the atmospheric temperature when the window is not present is equal to or less than 10 ?W.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: August 14, 2018
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Keiichi Tanaka, Kazuo Chinone
  • Patent number: 10045748
    Abstract: An x-ray detector for obtaining x-ray images of an object is provided that is capable of increasing the ability of the detector to withstand shock and other types of forces acting on the enclosure to prevent and/or limit damage to the internal components of the detector. The enclosure includes an internal filler/force distribution layer formed from a lightweight, rigid material such as rigid foam and/or a suitable structure, such as a honeycomb or other lattice structure. The material is formed or shaped to fill a layer or portion of the interior of the detector that is otherwise empty space defined between the various internal components of the detector. The position and shape of the force distribution layer determines the path of load distribution across or through the enclosure away from the internal components of the detector and is optimized for shock absorption and/or load distribution.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 14, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Nicholas Konkle, Kevin Lee, Connor Douglas McColl, Kevin Kinsey
  • Patent number: 10039516
    Abstract: A radiographic imaging system and digital detector detect extraneous signals during DR detector image readout and compensate or remove extraneous signal artifacts from radiographic images. Novel capture and post processing procedures prevent undesirable noise artifacts from appearing in final radiographic images.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: August 7, 2018
    Assignee: Carestream Health, Inc.
    Inventors: Karin Topfer, John DeHority, Jeffrey R. Hawver
  • Patent number: 10043846
    Abstract: A radiographic detection substrate, a manufacture method thereof, and a radiographic detection device are provided. The radiographic detection substrate includes a substrate; and a thin film transistor and a signal storage unit which are formed on the substrate; the thin film transistor includes a gate electrode, an insulating layer, an active layer, a source electrode, a drain electrode and a passivation layer which are sequentially formed on the substrate; the signal storage unit includes a storage capacitor, the storage capacitor includes a first electrode and a second electrode, the first electrode is formed on the insulating layer and lapped with the drain electrode, the second electrode is connected to a ground line; the passivation layer is formed on the source electrode, the drain electrode, the first electrode and the ground line.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: August 7, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Wei Guo, Xingdong Liu
  • Patent number: 10036814
    Abstract: An x-ray image detector includes a light image sensor having a depth, a front side comprising a sensing surface, and a back side. The x-ray image detector further includes a substrate plate on the back side and surrounding the depth of the light image sensor such that the substrate plate forms a lip around the light image sensor. The lip is level with the front side of the light image sensor. The x-ray image detector further includes a scintillator over the sensing surface of the light image sensor and at least a portion of the lip.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: July 31, 2018
    Assignee: General Electric Company
    Inventors: James Zhengshe Liu, Habib Vafi, Paul Richard Granfors
  • Patent number: 10036816
    Abstract: An X-ray detector includes an anti-scatter grid, an electrode and a converter element for converting X-rays into electrical charges in a stacking arrangement. In an embodiment, the stacking arrangement is externally enclosed by a protective element. The protective element extends in the stacking direction such that an enclosed area is at least arranged between the anti-scatter grid and the converter element and along the entire height of the converter element in the stacking direction. An adhesive element is arranged between the anti-scatter grid and the electrode.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: July 31, 2018
    Assignee: Siemens Healthcare GMBH
    Inventors: Caroline Blenk, Thorsten Ergler, Miguel Labayen De Inza, Jan Wrege
  • Patent number: 10038022
    Abstract: A light detector including an invisible light converting substrate, a light sensing element, a first protection layer, a thin film transistor, a first conductive pattern and a second protection layer is provided. The light sensing element and the thin film transistor are disposed on the invisible light converting substrate. The first protection layer covers the invisible light converting substrate and a second electrode of the light sensing element. The first protection layer has a via overlapped with the second electrode of the light sensing element. The first conductive pattern is disposed on the first protection layer and electrically connected to the second electrode of the light sensing element through the via of the first protection layer. The first conductive pattern is electrically connected between the second electrode of the light sensing element and a source of the thin film transistor.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: July 31, 2018
    Assignee: Au Optronics Corporation
    Inventors: Te-Ming Chen, Tsung-Han Chen, Sheng-Chen Wu, Geng-Qun Zhou, Ying-Hsien Chen
  • Patent number: 10032813
    Abstract: Fabrication and use of an X-ray detector scan interface having separate enable and reset lines for each line (e.g., row) of pixels is described. In certain implementations, the respective enable and reset lines are connected such that activation of an enable line for a given line of pixels is concurrent with activation of a reset line for a different (e.g., preceding) row of pixels. In this manner, readout of one row of pixels is performed in conjunction with resetting the row of pixels readout in the preceding operation. In another technical implementation, a non-rectangular detector is divided into quadrants, with alternating quadrants configured for scan module or data module operations such that no quadrant has overlapping scan and data interconnections at the connection finger regions.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: July 24, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: James Zhengshe Liu, Habib Vafi, Jingyi Liang, Nicholas Ryan Konkle
  • Patent number: 10033955
    Abstract: An X-ray detector includes a plurality of photodiodes arranged in a matrix shape and respectively connected to switching devices, a plurality of gate lines formed in a first direction and connected to the switching devices; a plurality of data lines, wherein N data lines are formed in each second-direction column of the matrix shape, wherein N is greater than 1; and a read-out circuit connected to the plurality of data lines and configured to read out photocurrents from the plurality of photodiodes and convert the photocurrents into X-ray image data, wherein each of switching devices included in each second-direction column of the matrix shape is connected to one of the N data lines.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: July 24, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Hisashi Kimura
  • Patent number: 10022102
    Abstract: In an X-ray imaging apparatus, a detection panel has monitor pixels for monitoring X-rays. A signal processor samples a dose signal of a dose per unit time of X-rays according to an output of the monitor pixels. A start detector checks whether irradiation of X-rays is started according to a result of comparison between the dose signal and a start threshold. An AEC device acquires cumulative dose from a start time of the start of irradiation of X-rays until acquisition time after a predetermined time according to the dose signal. According to the cumulative dose, a predicted time point of a reach of the cumulative dose to a target dose is estimated. A stop signal is transmitted to a radiation source controller at the predicted time point, to stop the irradiation of X-rays.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: July 17, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Yoshihiro Okada
  • Patent number: 10018736
    Abstract: A direct-conversion counting x-ray detector includes an analog front end. The analog front end is one-stage. The one stage includes a preamplifier and a pulse shaping unit.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: July 10, 2018
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventors: Martin Groepl, Edgar Goederer, Thomas Suttorp
  • Patent number: 10007011
    Abstract: A system for acquisition of tomographic measurement data from measurement signals (S) of positron emission tomography (PET) or single-photon emission computed tomography (SPECT) detectors, the system comprising: a front-end electronic assembly (2) configured to convert the measurement signals (S) into digital and analog signals (DAS); a measurement electronics assembly (3) comprising time to digital converter (TDC) modules (31) configured to determine times (T) of pulses in digital signals (DS).
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: June 26, 2018
    Assignee: UNIWERSYTET JAGIELLONSKI
    Inventors: Grzegorz Korcyl, Pawel Moskal, Marcin Kajetanowicz, Marek Palka
  • Patent number: 10009990
    Abstract: An imaging apparatus comprises a detecting unit for converting radiation or light into an electric signal provided with a plurality of pixels arranged in a matrix, each of the pixels including a conversion element and a switching element, a drive circuit unit for controlling a conducting state of the switching element, and a control circuit unit for controlling the drive circuit unit based on the electric signal converted by the detecting unit. The control circuit unit controls the drive circuit unit to perform steps including the drive circuit unit setting the switching elements at the conducting state row by row to acquire an offset image based on the signal accumulated in the plurality of pixels for subtraction processing of the image.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: June 26, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Katsuro Takenaka, Toshio Kameshima, Tomoyuki Yagi, Sho Sato, Atsushi Iwashita, Eriko Sugawara
  • Patent number: 9995832
    Abstract: A radiation detector includes: a radiation detecting module including a photoconductive layer containing at least one heavy metal; a voltage controller configured to detect current flowing through the photoconductive layer and control application of a voltage to the photoconductive layer based on the detected current; and a sealing part configured to seal the photoconductive layer and surround a portion of the radiation detecting module.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: June 12, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Kim, Jae-Chul Park
  • Patent number: 9980685
    Abstract: A radiation imaging apparatus comprising a plurality of sensors arrayed to form a plurality of rows and a plurality of columns on a substrate and a driving unit configured to drive the plurality of sensors row by row, wherein the driving unit performs a first operation of driving the plurality of sensors while selecting the plurality of rows in a first order, and a second operation of driving the plurality of sensors while selecting the plurality of rows in a second order different from the first order after the first operation, such that a time difference is produced between a sensor in each row and a sensor in a neighboring row from the selection in the first order to the selection in the second order.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: May 29, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Atsushi Iwashita, Toshio Kameshima, Tomoyuki Yagi, Katsuro Takenaka, Hideyuki Okada, Eriko Sato, Takuya Ryu, Kosuke Terui
  • Patent number: 9983320
    Abstract: A detector assembly is provided that includes a semiconductor detector, a collimator and a processing unit. The semiconductor detector has a first surface and a second surface opposed to each other. The first surface includes pixels (which in turn comprise corresponding pixelated anodes), and the second surface includes a cathode electrode. The collimator includes openings, with each opening associated with a single corresponding pixel of the semiconductor detector. The processing unit is configured to identify detected events within virtual sub-pixels distributed along a length and width of the semiconductor detector. Each pixel includes (e.g., has associated therewith) a plurality of corresponding virtual sub-pixels, with absorbed photons are counted as events in a corresponding virtual sub-pixel. Absorbed photons are counted as events within a thickness of the semiconductor detector at a distance corresponding to an energy window width used to identify the events as photon impacts.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: May 29, 2018
    Assignee: General Electric Company
    Inventors: Arie Shahar, Jean-Paul Bouhnik
  • Patent number: 9977135
    Abstract: A radiation imaging apparatus comprises a sensor portion including a pixel array configured to acquire an image signal corresponding to radiation, and a plurality of detection elements arranged in the pixel array and configured to detect the radiation, and a readout circuit configured to read out the image signal from the sensor portion, wherein the readout circuit includes a signal processing circuit arranged to combine and process signals from the plurality of detection elements if determining the presence or absence of radiation irradiation, and to process a signal for each detection element or combine and process signals from a number of detection elements from among the plurality of detection elements, the number being less than the number of detection elements that include the plurality of detection elements, if determining a radiation dose.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: May 22, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Keigo Yokoyama, Minoru Watanabe, Masato Ofuji, Jun Kawanabe, Kentaro Fujiyoshi, Hiroshi Wayama
  • Patent number: 9967479
    Abstract: The invention relates to pixel circuit and an operating method thereof, comprising a front-end circuit comprising a single photodiode and having an output, said front-end circuit being configured for delivering on said output a photoreceptor signal derived from a light exposure of said single photodiode; a transient detector circuit configured for detecting a change in said photoreceptor signal delivered on said output; an exposure measurement circuit configured for measuring said photoreceptor signal delivered on said output upon detection by the transient detector circuit of a change in the photoreceptor signal. The invention also relates to an image sensor comprising a plurality of pixel circuits.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: May 8, 2018
    Assignee: CHRONOCAM
    Inventors: Daniel Matolin, Christoph Posch
  • Patent number: 9960195
    Abstract: The present invention provides method for manufacturing a TFT backplane and a structure of a TFT backplane.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: May 1, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Wenhui Li, Yifan Wang, Chihyu Su, Xiaowen Lv
  • Patent number: 9945971
    Abstract: A method of modeling an aquatic environment or locating an acoustic source in the aquatic environment. A range-dependent medium is approximated in terms of a series of range-independent regions and obtaining single-scattering solutions across the vertical interfaces between regions. One or more acoustic waves are propagated from a known acoustic source through the range-dependent medium to one or more known seismoacoustic receivers to model iteratively the various solid and liquid layers of the range-dependent medium. Alternatively, one or more acoustic waves are reverse-propagated from one or more known seismoacoustic receivers through the range-dependent medium to determine whether an acoustic source is present within a user-defined range.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: April 17, 2018
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventor: Michael D. Collins
  • Patent number: 9942474
    Abstract: High speed video capture and depth estimation using array cameras is disclosed. Real world scenes typically include objects located at different distances from a camera. Therefore, estimating depth during video capture by an array camera can result in smoother rendering of video from image data captured of real world scenes. One embodiment of the invention includes cameras that capture images from different viewpoints, and an image processing pipeline application that obtains images from groups of cameras, where each group of cameras starts capturing image data at a staggered start time relative to the other groups of cameras. The application then selects a reference viewpoint and determines scene-dependent geometric corrections that shift pixels captured from an alternate viewpoint to the reference viewpoint by performing disparity searches to identify the disparity at which pixels from the different viewpoints are most similar. The corrections can then be used to render frames of video.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: April 10, 2018
    Assignee: FotoNation Cayman Limited
    Inventors: Kartik Venkataraman, Yusong Huang, Ankit K. Jain, Priyam Chatterjee