With Solid-state Image Detector Patents (Class 378/98.8)
  • Patent number: 10898070
    Abstract: A microlens in radiography in providing healthcare services, including medical and dental fields. The microlens preferably is included as a component of a detector. The detector preferably comprises a converter, a plate, a filter, the microlens, and a collector including photosensitive areas. Low light images are received at the converter and transmitted directly or through the plate to the filter and then to the microlens. The microlens collects, refines and focuses the low light image that would have otherwise fallen onto the non-sensitive areas of the collector, thereby enabling low light detection efficiency at the sensitive areas, and thereby increasing the collector fill factor and quantum efficiency.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: January 26, 2021
    Assignee: REAL TIME IMAGING TECHNOLOGIES, LLC
    Inventor: Daniel Uzbelger Feldman
  • Patent number: 10868074
    Abstract: The present invention relates to a detector module comprising a direct conversion crystal (10) for converting incident photons into electrical signals, said direct conversion crystal having a cathode metallization (100) deposited on a first surface and an anode metallization (101) deposited on a second surface, an integrated circuit (12) in electrical communication with said direct conversion crystal, said integrated circuit having a smaller width than said direct conversion crystal thus forming a recess (120) in width direction at a side surface of the integrated circuit, an interposer (11, 11a) arranged between said direct conversion crystal and said integrated circuit for providing electrical communication there between, wherein said interposer is made as separate element that is glued, soldered or bonded with the anode metallization (101) of said direct conversion crystal facing said integrated circuit, and a multi-lead flex cable (13, 13a, 13b, 13c, 13d) providing a plurality of output paths, said multi-
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: December 15, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Christoph Herrmann, Roger Steadman Booker, Amir Livne
  • Patent number: 10707191
    Abstract: An image generator for use in a display device, the image generator comprising a plurality of ILED array chips each comprising a plurality of ILED emitters and arranged in an array such that each of a plurality of pixels of the image generator comprises an ILED emitter from each of a plurality of adjacent ILED array chips. The total area of ILED emitter material be less than 50% of the area of each pixel. The image generator may comprise secondary optics in optical communication with an output of the plurality of ILED emitters of an ILED array chip and configured to direct light from the ILED emitters towards an emission region of the associated pixel.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: July 7, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: William Henry, Padraig Hughes, Joseph O'Keeffe
  • Patent number: 10641718
    Abstract: A system and method for processing X-ray fluorescence data in a hand-held X-ray Fluorescence (XRF) analyzer are provided. The X-ray fluorescence (XRF) analyzer includes a radiation source assembly including a first centerline axis and configured to direct an X-ray beam to impinge on a sample to be tested. The XRF analyzer also includes a radiation detector assembly including a second centerline axis configured to sense X-ray fluorescence (XRF) emitted from the sample in response to the X-ray beam. The XRF analyzer further includes a processor configured to determine a property of the sample to be tested from the emitted XRF, and a proximity sensor configured to continuously measure a distance between the XRF analyzer and the sample to be tested, the distance being at least one of displayed to a user and used by the processor to determine the property.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: May 5, 2020
    Assignee: Bruker Handheld LLC
    Inventors: Brian Scott Parks, Robert Matthew Burton, Robert Francis Shannon, Jr., Jiyan Gu, Lance Thompson Doyle, Fredericus Vosman, Kenneth Dean Wheeler, Michael Scott Kirsch
  • Patent number: 10560684
    Abstract: Systems and methods for calibrating an array camera are disclosed. Systems and methods for calibrating an array camera in accordance with embodiments of this invention include the capturing of an image of a test pattern with the array camera such that each imaging component in the array camera captures an image of the test pattern. The image of the test pattern captured by a reference imaging component is then used to derive calibration information for the reference component. A corrected image of the test pattern for the reference component is then generated from the calibration information and the image of the test pattern captured by the reference imaging component. The corrected image is then used with the images captured by each of the associate imaging components associated with the reference component to generate calibration information for the associate imaging components.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: February 11, 2020
    Assignee: FotoNation Limited
    Inventor: Robert Mullis
  • Patent number: 10548554
    Abstract: Provided is a radiation imaging apparatus, including: an information acquisition unit configured to acquire information on a radiation image from a detection apparatus configured to take the radiation image by detecting radiation; a transfer request unit configured to transmit to the detection apparatus, based on the information, a transfer request signal for requesting transfer of a radiation image untransferred and stored in the detection apparatus; and an image acquisition unit configured to acquire the radiation image from the detection apparatus.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: February 4, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Keisuke Arima
  • Patent number: 10524757
    Abstract: A medical radiology system comprises an external x-ray source (1) and a CMOS image sensor (2) that is connected via a USB link (4) by way of USB peripheral of a device (3) for digitally processing the image data of the sensor. A tracking device is placed on the USB link (4) in order to continuously read and decode the data transmitted over this link in a way that is transparent to the device and to the sensor, and to detect, in the transmitted data stream, one particular datum (XAMC=1) representing a signal indicating detection, by the sensor, that a sufficient dose of radiation has been received. On detection of this particular datum, the tracking device sends an electrical signal Stop-X to the radiation source, in order to stop the emission of the radiation. The system is especially suitable for taking dental radiology images with an intra-oral CMOS sensor.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: January 7, 2020
    Assignee: TELEDYNE E2V SEMICONDUCTORS SAS
    Inventors: Florian Julien, Laurent Lussereau, Pascal Pellet, Yves Delzoppo
  • Patent number: 10456099
    Abstract: There is provided a configuration that allows implementation of both photon measurement and current measurement with practical measuring performance and circuit area, where a plurality of detector elements constituting one detector pixel are connected to photon measuring circuits on a one-to-one basis, thereby counting current pulse signals outputted from the detector elements, and a current measuring unit incorporates an integrator, an adder, and a sample-hold circuit provided for every detector pixel, and a converter for converting analogue signals to digital signals, one converter being provided for a plurality of detector pixels. The integrator integrates and the adder adds current pulse signals respectively outputted from the plurality of detector elements constituting one detector pixel, the sample-hold circuit integrates outputs from the adder, and the converter selectively converts analogue outputs from the integration circuit of any of the plurality of detector pixels.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: October 29, 2019
    Assignee: HITACHI, LTD.
    Inventor: Masafumi Onouchi
  • Patent number: 10440290
    Abstract: A radiographic image capturing apparatus, includes the following. A sensor panel includes scanning lines, signal lines, a two-dimensional array of radiation detecting elements each having a first electrode and a second electrode, bias lines each applying a reverse bias voltage to the corresponding radiation detecting element, and switching elements. The first electrode of each radiation detecting element is connected to the corresponding bias line. The second electrode of the radiation detecting element is connected to the corresponding signal line via the corresponding switch element. A determination unit determines any defect in the sensor panel based on a signal value read after varying a potential difference between each signal line and the corresponding bias line or a signal value read after turning-on or turning-off of each switching element during a readout operation from the corresponding radiation detecting element.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: October 8, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventor: Ryouhei Kikuchi
  • Patent number: 10429521
    Abstract: A small, low power, solid state particle counter may be configured to detect radiation. A scintillator may be doped to emit light in a predetermined energy range when impacted by radiation particles. A photodiode attached to or held against the scintillator may be configured to detect the emitted light in the predetermined energy range and output a current proportional to an amount of the emitted light.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: October 1, 2019
    Assignee: United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Susan Y. Wrbanek, John D. Wrbanek, Gustave C. Fralick
  • Patent number: 10431662
    Abstract: The disclosure relates to a thin film transistor and a method for making the same. The thin film transistor includes a substrate; a semiconductor layer on the substrate, wherein the semiconductor layer includes nano-scaled semiconductor materials; a source and a drain, wherein the source and the drain are on the substrate, spaced apart from each other, and electrically connected to the semiconductor layer; a dielectric layer on the semiconductor layer, wherein the dielectric layer includes a first sub-dielectric layer and a second sub-dielectric layer stacked on one another, and the first sub-dielectric layer is a first oxide dielectric layer grown by magnetron sputtering; and a gate in direct contact with the first sub-dielectric layer. The thin film transistor almost has no current hysteresis.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: October 1, 2019
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yu-Jia Huo, Yu-Dan Zhao, Xiao-Yang Xiao, Ying-Cheng Wang, Tian-Fu Zhang, Yuan-Hao Jin, Qun-Qing Li, Shou-Shan Fan
  • Patent number: 10388051
    Abstract: A picture synthesis method and apparatus, an instant messaging method and a picture synthesis server/device are disclosed. The method comprises: after at least two pictures to be synthesized are acquired, determining a visual center of each of the pictures to be synthesized; cutting the corresponding pictures to be synthesized in accordance with the visual center of each of the pictures to be synthesized and a first set specification; and synthesizing all of the cut pictures to be synthesized to obtain a synthesized picture. Due to full consideration of the visual center of each of the pictures to be synthesized, a visual effect of the finally obtained synthesized picture is ensured, thereby improving the user experience.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 20, 2019
    Assignee: Alibaba Group Holding Limited
    Inventor: Puchao Feng
  • Patent number: 10386505
    Abstract: According to one embodiment, a scintillator includes a first layer provided on a surface of a substrate and including thallium activated cesium iodide; and a second layer provided on the first layer and including thallium activated cesium iodide. The second layer includes crystals having a [001] orientation partially diverted from a direction perpendicular to the surface of the substrate. Half width at half maximum of a frequency distribution curve of an angle between the direction perpendicular to the surface of the substrate and the [001] orientation, which is obtained by measuring the angle using EBSD method, is 2.4 degree or less.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: August 20, 2019
    Assignee: CANON ELECTRON TUBES & DEVICES CO., LTD.
    Inventors: Atsuya Yoshida, Hiroshi Horiuchi
  • Patent number: 10371647
    Abstract: Provided is a radiation imaging apparatus, including: an information outputting unit configured to output state information on a state of the radiation imaging apparatus; a correction data acquiring unit configured to acquire offset correction data through use of image data acquired in an acquisition mode that is set based on the state information; and an image processing unit configured to correct image data acquired by imaging an object through use the offset correction data.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: August 6, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroki Asai
  • Patent number: 10271807
    Abstract: A real-time fluoroscopic imaging system includes a collimator and a detector which are rotationally movable independent of the support assembly, e.g., c-arm, to which they are mounted. Rotational movement of the collimator and the detector are coordinated such that the orientation of the detector with respect to the collimator does not change. The collimator may include a geared flange member to facilitate rotation, and may be a single molded piece formed of a plastic such as tungsten polymer material. The system may also include a plurality of interchangeable collimators characterized by different shapes. A display is provided to present an image to an operator, and image orientation logic displays a target anatomy in a selected orientation regardless of orientation of the target anatomy relative to the detector, and regardless of rotation of the detector.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: April 30, 2019
    Assignee: HOLOGIC, INC.
    Inventors: John Jenkins, Mark Guetersloh, Aleksey Danilkin, Tri Pham
  • Patent number: 10234573
    Abstract: A dual-mode, hand-held, digital probe, designed to rapidly localize tissues of interest through gamma detection, and provide high-resolution, real-time images of the suspect area by sensing beta radiation is presented. A position-sensitive solid-state photomultiplier is optically bonded with a hybrid scintillator including a thin Crystalline Microcolumnar Structure (CMS) CsI:T1 scintillator, vapor-deposited directly onto a monolithic (polycrystalline) LYSO scintillator.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: March 19, 2019
    Assignee: RADIATION MONITORING DEVICES, INC.
    Inventors: Vivek V. Nagarkar, Bipin Singh, Hamid Sabet, Haris Kudrolli
  • Patent number: 10225543
    Abstract: Systems and methods for calibrating an array camera are disclosed. Systems and methods for calibrating an array camera in accordance with embodiments of this invention include the capturing of an image of a test pattern with the array camera such that each imaging component in the array camera captures an image of the test pattern. The image of the test pattern captured by a reference imaging component is then used to derive calibration information for the reference component. A corrected image of the test pattern for the reference component is then generated from the calibration information and the image of the test pattern captured by the reference imaging component. The corrected image is then used with the images captured by each of the associate imaging components associated with the reference component to generate calibration information for the associate imaging components.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: March 5, 2019
    Assignee: FotoNation Limited
    Inventor: Robert Mullis
  • Patent number: 10212368
    Abstract: A solid-state imaging device includes a photodetecting unit and a signal readout unit, and further includes a control unit controlling an operation of each of the photodetecting unit and the signal readout unit. The photodetecting unit includes M×N pixels on a first principal surface of a semiconductor substrate having the first principal surface and a second principal surface opposite to each other. Each pixel includes a plurality of buried photodiodes, a capacitance portion a plurality of transfer switches, and an output switch.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: February 19, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Tomohiro Yamazaki, Takashi Suzuki
  • Patent number: 10188359
    Abstract: Disclosed are an intra-oral sensor, a cradle, and an intra-oral sensing system. More particularly, the present invention relates to an intra-oral sensor, a cradle, and an intra-oral sensing system, in which the intra-oral sensor can transmit projection data, can be charged with driving power, and can be sterilized at the same time when mounting the intra-oral sensor in the cradle, and can output the projection data including an identifier therein, thereby enabling an operator to easily recognize which part in a set of teeth is represented by image data corresponding to the projection data.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: January 29, 2019
    Assignees: Rayence Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Keun Young Kim, Tae Woo Kim, Sung Il Choi
  • Patent number: 10055819
    Abstract: The radiation imaging apparatus includes: a correction data acquiring unit configured to acquire, from image data captured in a predetermined imaging mode, offset correction data corresponding to the predetermined imaging mode; a switching unit configured to switch an acquisition mode for acquiring the image data, depending on the predetermined imaging mode; and an image processing unit configured to subtract the offset correction data from a radiation image of an object to perform an offset correction process.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: August 21, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroki Asai
  • Patent number: 9948339
    Abstract: A spatially distributed module and method of assembling the spatially distributed module in a vehicle include disposing a first sub-module of the module in a first location of the vehicle, and disposing a second sub-module of the module in a second location of the vehicle that is spatially separated from the first location. The first sub-module includes a processor and a memory device and the second sub-module includes a first set of one or more components. The method includes coupling the second sub-module to the first sub-module via a flexible connector such that the first set of the one or more components in the second sub-module use the processor and the memory device in the first sub-module. A length of the flexible connector is at least equal to a minimum distance between the first location and the second location.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: April 17, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yohay Buchbut, Nadav Lavi, Kobi J. Scheim
  • Patent number: 9907521
    Abstract: The invention relates to medical imaging and, more specifically, to intraoral dental radiology. The sensor according to the invention includes a series (SPHx) of detection photodiodes for detecting the arrival of an X-ray flash. The series of photodiodes occupies the location of a central column of the matrix of pixels. The signal of the missing pixel in each row can be reconstructed by interpolating the signals provided by the adjacent pixels of the row. The detection photodiodes are identical to the photodiodes of the active CMOS pixels. They are all electrically connected on one side to a reference potential and on the other side to a detection conductor (CD) extending along the series of photodiodes. This detection conductor is connected to a detection circuit (DX) delivering a signal for triggering the capture of an image when the detected current or the variation in this current exceeds a threshold showing that an X-ray flash has been initiated.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: March 6, 2018
    Assignee: TELEDYNE E2V SEMICONDUCTOR SAS
    Inventors: Caroline Papaix, Florian Julien, Nathalie Pascal, Stéphane Crespin
  • Patent number: 9872659
    Abstract: A real-time fluoroscopic imaging system includes a collimator and a detector which are rotationally movable independent of the support assembly, e.g., c-arm, to which they are mounted. Rotational movement of the collimator and the detector are coordinated such that the orientation of the detector with respect to the collimator does not change. The collimator may include a geared flange member to facilitate rotation, and may be a single molded piece formed of a plastic such as tungsten polymer material. The system may also include a plurality of interchangeable collimators characterized by different shapes. A display is provided to present an image to an operator, and image orientation logic displays a target anatomy in a selected orientation regardless of orientation of the target anatomy relative to the detector, and regardless of rotation of the detector.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: January 23, 2018
    Assignee: HOLOGIC, INC.
    Inventors: John Jenkins, Mark Guetersloh, Aleksey Danilkin, Tri Pham
  • Patent number: 9801593
    Abstract: Devices, methods, and systems including an intraoral x-ray imaging sensor. The intraoral x-ray imaging sensor having a substrate having an imaging area and a non-imaging area, a plurality of readout amplifiers located in the non-imaging area of the substrate, an array of pixels located on the imaging area of the substrate and arranged as a plurality of rows and columns, and pixel selector circuitry diagonally arranged in the imaging area of the substrate. Each pixel of the array of pixels is selectively coupled to one or more of the plurality of readout amplifiers.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: October 31, 2017
    Assignee: DENTAL IMAGING TECHNOLOGIES CORPORATION
    Inventors: Scott David Kravis, Bradley S. Carlson
  • Patent number: 9721334
    Abstract: A computer-implemented method, computer program product, and system for detecting work-piece defects. The computer-implemented method may include: receiving a first image of a training work-piece captured using a non-destructive imaging process and a second image of the training work-piece captured using a destructive imaging process; receiving an image of a work-piece captured using a non-destructive imaging process, wherein the work-piece is substantially similar to the training work-piece, and the non-destructive imaging process used to capture the work-piece is substantially similar to the non-destructive imaging process used to capture the training work-piece; matching the image of the work-piece to the first image of the training work-piece; and enhancing the image of the work-piece using the second image of the training work-piece, in response to the image of the work-piece matching the first image of the training work-piece.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: August 1, 2017
    Assignee: International Business Machines Corporation
    Inventors: Boliang Chen, Min Gong, Dong Sheng Li, Junchi Yan, Chao Zhang, Wei Peng Zhang
  • Patent number: 9589855
    Abstract: A common interconnect ring is provided at a periphery of a portion used to form a TFT array of an X-ray flat panel detector, and an X-ray flat panel detector TFT array substrate connected to signal lines and scanning lines via pairs of two protection diodes connected in parallel and having mutually-reverse polarities is manufactured. When inspecting the X-ray flat panel detector TFT array substrate, the same reference bias voltage as the amplifier of a detection circuit is applied from an external voltage application pad provided at the vicinity of a connection unit for the common interconnect ring and the protection diodes on the same side of the signal lines, a signal is provided to a scanning line connection pad to switch the thin film transistor ON, and an electrical signal flowing through the signal line is read from a signal line connection pad.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: March 7, 2017
    Assignee: Toshiba Electron Tubes & Devices Co., Ltd.
    Inventors: Hiroshi Iwata, Mitsushi Ikeda
  • Patent number: 9468414
    Abstract: An imaging system comprises: a plurality of pixels each for converting light, converted from radiation by a conversion unit, into an electrical signal; an extracting unit that extracts, based on an image formed based on output signals from the pixels, a pixel with noise generated by the radiation that has transmitted through the conversion unit to arrive at the pixels; and a correcting unit that performs correction to remove the noise with respect to an output signal from the extracted pixel, wherein the extracting unit extracts the pixel with the noise by performing division between first and second images, the first image being formed based on the output signals from the pixels in accordance with the radiation to the conversion unit during a first period, the second image being formed based on these output signals in accordance with that radiation during a second period after the first period.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: October 18, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takuya Ryu, Toshio Kameshima, Tomoyuki Yagi, Katsuro Takenaka, Sho Sato, Atsushi Iwashita, Eriko Sato, Hideyuki Okada
  • Patent number: 9450002
    Abstract: A detecting apparatus formed on a substrate, includes a plurality of pixels arranged in a matrix, and a signal line electrically connected to the pixels. Each of the pixels includes a sensing element that converts radiant ray or light to electric charges, an amplification thin film transistor that outputs an electric signal based on an amount of the electric charges, a capacitor that holds an electric signal output by the amplification thin film transistor, and a transfer thin film transistor that transfers an electric signal held in the capacitor to the signal line.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: September 20, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Minoru Watanabe, Chiori Mochizuki, Keigo Yokoyama, Masato Ofuji, Jun Kawanabe, Kentaro Fujiyoshi, Hiroshi Wayama
  • Patent number: 9451182
    Abstract: Provided are a wireless x-ray detector for automatic exposure detection and a method of driving the x-ray detector. The wireless x-ray detector includes: a first detection unit for detecting an x-ray incident in the x-ray detector; a second detection unit for detecting an x-ray that has passed through the first detection unit; and a gate driving unit for applying a gate pulse for controlling a switching device of the first detection unit, to the first detection unit, according to whether the second detection unit detects the x-ray that has passed through the first detection unit.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: September 20, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-soo Lee, Eung-bum Kim
  • Patent number: 9417333
    Abstract: A radiation imaging apparatus comprises: a detector that includes a detection unit in which pixels having a conversion element that converts radiation to an electric charge are arranged in a matrix shape, a drive circuit that drives the detection unit, and a read circuit that outputs an electric signal corresponding to the electric charge as image data; a radiation detection unit that detects a radiation irradiation state at a plurality of positions in the detection unit; and a control unit that controls operations of the drive circuit and the read circuit in accordance with a detection result obtained by the radiation detection unit, wherein the radiation detection unit detects a radiation irradiation state at least at a center region and a peripheral region in the detection unit, and a detection capability at the center region is set to a higher capability than a detection capability at the peripheral region.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: August 16, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Sho Sato, Toshio Kameshima, Tomoyuki Yagi, Katsuro Takenaka, Hideyuki Okada, Atsushi Iwashita, Eriko Sugawara
  • Patent number: 9383453
    Abstract: A radiation imaging apparatus comprises: a detector that includes a detection unit in which pixels having a conversion element that converts radiation to an electric charge are arranged in a matrix shape, a drive circuit that drives the detection unit, and a read circuit that outputs an electric signal corresponding to the electric charge as image data; a radiation detection unit that detects a radiation irradiation state at a plurality of positions in the detection unit; and a control unit that controls operations of the drive circuit and the read circuit in accordance with a detection result obtained by the radiation detection unit, wherein the radiation detection unit detects a radiation irradiation state at least at a center region and a peripheral region in the detection unit, and a detection capability at the center region is set to a higher capability than a detection capability at the peripheral region.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: July 5, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Sho Sato, Toshio Kameshima, Tomoyuki Yagi, Katsuro Takenaka, Hideyuki Okada, Atsushi Iwashita, Eriko Sugawara
  • Patent number: 9354330
    Abstract: A method for detecting radiation during the examination of a sample (1) comprises the steps of generating the radiation, more particularly X-ray radiation or proton radiation, by means of a source device (10), passing the radiation through the sample (1), and detecting the radiation by means of at least one photoelectric solid-state detector (20) containing a photoconduction section having a predetermined response threshold and a potential well section for taking up free charge carriers. The solid-state detector (20) is a GaN- or GaAs-based semiconductor detector and the potential well section contains a two-dimensional electron gas (2DEG). A setting of the radiation is provided in such a way that the solid-state detector (20) is operated separately from the response threshold of the photoconduction section and in a sensitivity range of the potential well section.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: May 31, 2016
    Assignees: Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH), Technische Universitaet Muenchen
    Inventors: Stefan Thalhammer, Markus Hofstetter, John Howgate, Martin Stutzmann
  • Patent number: 9351701
    Abstract: There is provided a calibration apparatus used for a photon counting type of radiation detector. In this apparatus, a radiation condition of a radiation is set such that particles of the radiation (X-rays) which are incident on a plurality of detection modules are piled up over each other at a probability which is equal to or less than a predetermined value. Under the setting of this radiation condition, detection sensitivities for the radiation are made uniform among the plurality of detection modules. Using this uniformed result, the detection sensitivities for the radiation are further made uniform every channel of each of the pixels formed by circuit groups including the plurality of detection modules, discrimination circuits and data calculation circuits and every discrimination circuit in each channel.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: May 31, 2016
    Assignee: TAKARA TELESYSTEMS CORP.
    Inventors: Tsutomu Yamakawa, Daisuke Hashimoto, Hideyuki Nagaoka, Tatsuya Nagano, Masahiro Tsujita
  • Patent number: 9354329
    Abstract: The invention relates to an X-ray camera (100) for the high-resolution detection of X-rays (1), comprising a plurality of radiation detectors (10), each of which has a carrier substrate (11), a detector layer (12), and contact electrodes (13). The detector layer (12) contains GaN, lies on the carrier substrate (11), and has a thickness of less than 50 ?m. The contact electrodes (13) form ohmic contacts with the detector layer (12). The X-ray camera also comprises a retaining device (20) on which the radiation detectors (10) are arranged along a specified reference line or reference surface (21). The invention also relates to a method for capturing an image of an object (2, 3) being examined using X-rays (1), said X-ray camera (100) being used in the method.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: May 31, 2016
    Assignee: Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (Gmbh)
    Inventors: Stefan Thalhammer, Markus Hofstetter, John Howgate, Martin Stutzmann
  • Patent number: 9329280
    Abstract: A radiation image pickup apparatus includes a pixel array having pixels each including a conversion element and a switch element, a drive circuit for controlling the switch element between a conducting state and a non-conducting state, a detection unit for outputting a detection signal varying with the intensity of irradiation of the pixel array, and an arithmetic unit for calculating a start threshold value used to detect start of irradiation based on the signal output from the detection unit during a period when radiation is not emitted onto the pixel array in which the switch elements are sequentially set in a conducting state on a row-by-row basis by the drive circuit and the signal output from the detection unit during a period when radiation is emitted onto the pixel array in which the switch elements are sequentially set in a conducting state on a row-by-row basis by the drive circuit.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: May 3, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshio Kameshima, Tomoyuki Yagi, Katsuro Takenaka, Sho Sato, Atsushi Iwashita, Eriko Sugawara, Hideyuki Okada
  • Patent number: 9313869
    Abstract: A radiation image detection apparatus includes a control unit, during a irradiation detection mode, stops supplying of an operating power to a data processing unit until irradiation of radiation is detected by an irradiation detection unit, and when the irradiation of radiation is detected by the irradiation detection unit, the control unit proceeds to a photographing mode and begins supplying the operating power to the data processing unit.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: April 12, 2016
    Assignee: FUJIFILM CORPORATION
    Inventors: Yasufumi Takahashi, Naoto Iwakiri
  • Patent number: 9305969
    Abstract: A solid-state imaging device 1A includes a CCD-type solid-state imaging element 10 having an imaging plane 12 formed of M×N pixels that are two-dimensionally arrayed in M rows and N columns, N signal readout circuits 20 arranged on one end side in the column direction for each of the columns with respect to the imaging plane 12, and N signal readout circuits 30 arranged on the other end side in the column direction for each of the columns with respect to the imaging plane 12, a semiconductor element 50 for digital-converting and then sequentially outputting as serial signals electrical signals output from the signal readout circuits 20 for each of the columns, and a semiconductor element 60 for digital-converting and then sequentially outputting as serial signals electrical signals output from the signal readout circuits 30 for each of the columns.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: April 5, 2016
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Motohiro Suyama, Akiomi Ujima, Kentaro Maeta, Hisanori Suzuki, Masaharu Muramatsu, Fumio Iwase
  • Patent number: 9285326
    Abstract: A computed-tomography apparatus that includes a CT scanner including an X-ray source and a detector covering respective angle ranges in the axial and transaxial planes of the CT scanner. The CT detector includes first detector elements disposed on a first surface to capture incident X-ray photons emitted from the X-ray source, and second detector elements sparsely disposed on a second surface different from the first surface, the second surface being farther away from the scanner than the first surface, the second detector elements being smaller in number than the first detector elements. Each of the second detector elements is reachable only by X-ray photons originating in a small angle range around a line connecting the X-ray source and a center of the surface of the detector element, the small angle range being determined by the predetermined distance separating the first and second surfaces and a size of the detector element.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: March 15, 2016
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Daniel Gagnon, Yu Zou, Xiaolan Wang
  • Patent number: 9223033
    Abstract: Embodiments of the present disclosure relate to a scintillator array including a reflector disposed between the scintillator pixels, and methods of forming the scintillator array and radiation detector. In an embodiment, the reflector can be used in the scintillator array without an adhesive. In another embodiment, the reflector can be disposed in a zigzag pattern between the scintillator pixels.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: December 29, 2015
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventor: Louis Perna
  • Patent number: 9204855
    Abstract: A portable X-ray imaging apparatus has an electronic cassette and a console capable of receiving an imaging order. The console has a wireless communication section, a trigger signal obtaining section, a connection determining section, a switching section, and a delivery requesting section. The wireless communication section receives radio waves and connects itself to an access point (AP). The trigger signal obtaining section obtains a trigger signal while the mobile radiography unit stands still. At the time of obtaining the trigger signal, the connection determining section determines one of the APs as an appropriate AP based on field intensity. The switching section switches the connection to the appropriate AP. Then, the delivery requesting section transmits a delivery request for the imaging order.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: December 8, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Keiji Tsubota, Naoyuki Nishino, Yasunori Ohta
  • Patent number: 9204849
    Abstract: To achieve a radiation detection panel capable of outputting a signal for generating an accurate pixel signal regardless of the performance of a conversion unit, a detection circuit that outputs a signal used for generating a pixel signal includes a first output circuit that outputs a signal due to afterglow, and a second output circuit that outputs a signal including both a signal based on radiation emission and a signal due to afterglow. Transistors using an oxide semiconductor material for a channel formation region are used as some transistors included in the first and second output circuits. In the radiation detection panel having this structure, the signal (a first signal or a second signal) can be held in each output circuit; therefore, after all output circuits hold the signal (the first signal or the second signal), the first signal and the second signal can be sequentially output from detection circuits.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: December 8, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiyuki Kurokawa, Takayuki Ikeda
  • Patent number: 9201149
    Abstract: An apparatus and method for radiation detection is herein described. The apparatus consists of two radiation-detection arrays: A primary radiation-detection array, based on scintillator-CMOS design, and a secondary radiation-detection array, mounted on the back of said primary array. A method of controlling the detection operation is described, where output of the secondary array is exploited for controlling the acquisition-start and acquisition-stop of the primary array. Further, the apparatus is equipped with fast memory for storage of correction tables, and with a processor for fast computation of the correction. A method of calibration is also describes with tables for: offset correction, gain correction, and for defect-pixel correction. These tables are evaluated by the fast processor and stored on the fast memory. A method of real-time evaluation of the signal corrections is described, which depends on the acquisition-start and acquisition-stop timings and which results a clean, artifact-free image.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: December 1, 2015
    Assignee: CMT MEDICAL TECHNOLOGIES LTD.
    Inventors: Ami Ben Hayun, Alex Shtengel, Guy Hevel
  • Patent number: 9192350
    Abstract: A portable radiation imaging apparatus configured to wirelessly communicate with a radiation generation apparatus includes a radiation image sensor including a two-dimensional arrangement of a plurality of detection elements configured to detect a radiation generated by the radiation generation apparatus, a wireless communication unit configured to receive a generation condition of the radiation generated by the radiation generation apparatus, a storage unit configured to store the received generation condition and radiation image data obtained by the radiation image sensor in association with each other, and a housing configured to accommodate the radiation image sensor, the wireless communication unit, and the storage unit.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: November 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Taro Hiroike
  • Patent number: 9171878
    Abstract: According to one embodiment, detector and DAS includes an X-ray detector, a board, a DAS, and a plurality of X-ray shielding plates. The X-ray detector detects X-rays and generates an electrical signal corresponding to the detected X-rays. The board is coupled to the X-ray detector and includes a wiring pattern to extract the electrical signal from the X-ray detector. The DAS is coupled to the board and included an electronic part to perform signal processing for the electrical signal. The X-ray shielding plates are provided for the board to prevent the electronic part from being exposed to X-rays transmitted through the X-ray detector. A portion of the wiring pattern is placed between the X-ray shielding plates.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: October 27, 2015
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems Corporation
    Inventors: Yoshiaki Yaoi, Takayuki Yamazaki, Michito Nakayama, Seiichiro Murai, Akihiko Taniguchi
  • Patent number: 9168016
    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: January 28, 2011
    Date of Patent: October 27, 2015
    Assignee: FUJIFILM CORPORATION
    Inventors: Yasunori Ohta, Naoyuki Nishino, Haruyasu Nakatsugawa
  • Patent number: 9161729
    Abstract: An apparatus for X-ray photography includes a first X-ray source, a first driving device, and an image detecting device. The first X-ray source has a light emitting end, provided with a block element. The first X-ray source generates an X-ray beam, and the block element is used for constraining a projection field of the X-ray beam, so that the X-ray beam has a first boundary. The X-ray beam is cast onto an object, and the object has a reference center and an imageable area. The first driving device is used for driving the first X-ray source to rotate around the object within an angle range with the reference center of the object as a center, so that when the first X-ray source is located at a first position, the first boundary passes through the reference center.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: October 20, 2015
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN
    Inventors: Ho-Hui Hsieh, Meei-Ling Jan, Tien-Hsiu Tsai
  • Patent number: 9159765
    Abstract: A soft X-ray detection apparatus includes a semiconductor substrate. The semiconductor substrate has a plurality of detection units disposed thereon, each including a conversion unit and a circuit unit. The conversion unit is formed from, for example, a photodiode. The conversion unit collects electric charge generated upon incidence of soft X-ray radiation. A first conductive type (e.g., N-channel type) amplifier transistor is disposed in the circuit unit. The amplifier transistor serves as an amplifier unit that amplifies and outputs a signal supplied from the conversion unit. A first conductive type transistor is not disposed between the conversion units that are immediately adjacent to each other. Alternatively, transistors included in the detection units that are immediately adjacent to each other are disposed so as to be in close proximity to each other.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: October 13, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hirofumi Totsuka
  • Patent number: 9144412
    Abstract: Among other things, a communication system and technique for transferring information between a stationary unit and a rotating unit of a computed tomography (CT) system is provided. A transmitter is configured to map digital data to an analog signal by selecting, from at least three signal configurations, a signal configuration associated with the digital data, and to generate an analog signal according to the selected signal configuration. A receiver of the communication system is configured to decode an analog signal by comparing characteristics of a signal sample to at least three possible signal configurations, and to identify a digital code word that corresponds to a signal configuration (of the at least three possible signal configurations) that matches characteristics of the signal sample. In this way, in a CT application, more than 1-bit of data may be communicated per analog signal, allowing more data to be communicated faster.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: September 29, 2015
    Assignee: Analogic Corporation
    Inventor: Louis R. Poulo
  • Patent number: 9128368
    Abstract: If a control unit of a radiation image capturing apparatus acquires dark image data before photographing and at the same time detects initiation of irradiation of radiation based on image data read out by carrying out a readout process of the image data, the control unit applies off-voltage to all the scanning lines and shifts to an electric charge accumulation mode, and after the irradiation is over, sequentially applies on-voltage to each of the scanning lines, causes the scanning lines to carry out readout process of main image data from each of radiation detection elements, and subsequently acquires offset data in a condition where radiation is not irradiated to correct the main image data read out by the photographing or main image data read out by a photographing carried out after the former photographing based on offset lag part calculated from the offset data and the dark image data.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: September 8, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventor: Hideaki Tajima
  • Patent number: 9124864
    Abstract: Systems and methods for calibrating an array camera are disclosed. Systems and methods for calibrating an array camera in accordance with embodiments of this invention include the capturing of an image of a test pattern with the array camera such that each imaging component in the array camera captures an image of the test pattern. The image of the test pattern captured by a reference imaging component is then used to derive calibration information for the reference component. A corrected image of the test pattern for the reference component is then generated from the calibration information and the image of the test pattern captured by the reference imaging component. The corrected image is then used with the images captured by each of the associate imaging components associated with the reference component to generate calibration information for the associate imaging components.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: September 1, 2015
    Assignee: Pelican Imaging Corporation
    Inventor: Robert Mullis