Imaging System Patents (Class 250/370.08)
  • Patent number: 10314557
    Abstract: A radiography apparatus and a method for controlling the radiography apparatus are provided. The radiography apparatus includes a radiographer configured to acquire a first radiation image of a subject before a contrast reagent is injected into the subject, and acquire a second radiation image of the subject after the contrast reagent is injected into the subject. The radiography apparatus further includes an image processor configured to calculate a difference between data of a pixel of the first radiation image and data of a pixel of the second radiation image, for each of pixels of the first radiation image, and acquire an image of the subject based the difference for each of the pixels of the first radiation image.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: June 11, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seok Min Han, Dong-Goo Kang, Young Hun Sung
  • Patent number: 10278665
    Abstract: A method controls an X-ray apparatus which contains a base station and at least one X-ray detector, wherein status information about the at least one X-ray detector is obtained. The status information is deposited in a database of the base station and the X-ray apparatus is controlled on the basis of the status information from the database.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: May 7, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: Steffen Benndorf, Franziska Dinse, Michael Fuhrmann, Jens Hofmann
  • Patent number: 10271814
    Abstract: A control apparatus includes a changing unit which changes the sequence of a plurality of imaging examination information, based on a user operation, displayed based on an imaging sequence on an imaging control screen, and a control unit which controls at least one of a radiation detector and a radiation generation unit which are associated with imaging examination information as an imaging target based on the sequence changed by the changing unit.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: April 30, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tomohiro Kawanishi
  • Patent number: 10274618
    Abstract: A radiography apparatus includes: a radiation detector that includes a plurality of pixels, each of which includes a thin film transistor and which are two-dimensionally arranged, and data lines through which charge accumulated in the connected pixels is transmitted as an electric signal; and a first sample-and-hold unit and a second sample-and-hold unit that sample and hold the electric signal transmitted through the data line. In a case in which the charge accumulated in the pixel is read out, the radiography apparatus performs control such that the thin film transistor is turned off and the first sample-and-hold unit samples and holds a first electric signal transmitted through the data line; and the thin film transistor is turned on and the second sample-and-hold unit samples and holds a second electric signal transmitted through the data line.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: April 30, 2019
    Assignee: FUJIFILM CORPORATION
    Inventor: Kenji Nakamura
  • Patent number: 10261213
    Abstract: A radiation detector useable in a downhole tool configured to be positioned in a borehole includes a printed circuit board and at least one detector element coupled to the printed circuit board. The at least one detector element includes a semiconductor direct conversion material for directly converting gamma rays into electrical signals. The semiconductor direct conversion material includes a cathode surface and an anode surface. In addition, the at least one detector element includes a cathode operatively connected to the cathode surface, and an anode operatively coupled to the anode surface. The radiation detector also includes a voltage source coupled to the printed circuit board and configured to provide a voltage to the at least one detector element.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: April 16, 2019
    Assignee: General Electric Company
    Inventors: Helene Claire Climent, Stewart Blake Brazil
  • Patent number: 10222489
    Abstract: The present approach relates to the use of reference pixels provided between the primary pixels of a detector panel. Coincidence circuitry or logic may be employed so that the measured signal arising from the same X-ray event may be properly, that is the signal measured at both a reference and primary pixel may be combined so as to provide an accurate estimate of the measured signal, at an appropriate location on the detector panel.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: March 5, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Geng Fu, Xue Rui, Yannan Jin, Jianjun Guo, Peter Michael Edic, Brian David Yanoff
  • Patent number: 10199408
    Abstract: An imaging device includes: a first pixel cell including a first photoelectric conversion film having a first surface and a second surface opposite to the first surface, a first electrode on the first surface, a second electrode on the first surface, surrounding the first electrode, and a first counter electrode on the second surface, facing the first electrode and the second electrode; and a second pixel cell including a second photoelectric conversion film having a third surface and a fourth surface opposite to the third surface, a third electrode on the third surface, a fourth electrode on the third surface, surrounding the third electrode, and a second counter electrode on the fourth surface, facing the third electrode and the fourth electrode, wherein the second electrode and the fourth electrode are electrically separated from each other.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: February 5, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Yasuo Miyake
  • Patent number: 10165999
    Abstract: Improvement of a frame rate and suppression of power consumption are intended. A radiological-image acquisition device (100) includes a plurality of pixels, a capacitive element (1a) that accumulates electric charge corresponding to a dose (X) of radiation, and a read control unit (read element control unit 22, reset element control unit 23) that reads, from at least one pixel (active pixel 10) that is not subjected to initialization in two or more frames, an output (output voltage Vout) corresponding to the electric charge.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: January 1, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kunihiko Iizuka, Shigenari Taguchi, Katsuhisa Kashiwagi
  • Patent number: 10156643
    Abstract: According to one embodiment, a radiation detector includes a substrate, control lines, data lines, a photoelectric conversion part provided in a region drawn by the control and data lines, and including thin film transistors and photoelectric conversion elements electrically connected to the corresponding control and data lines, a control circuit electrically connected to the control lines, a signal detection circuit electrically connected to the data lines, at least one reference potential part electrically connected to the signal detection circuit, and a determination part electrically connected to the signal detection circuit. The signal detection circuit detects a first current integral value via the data lines and detects a second current integral value from the at least one reference potential part. The determination part determines an incidence start time of a radiation on the basis of a difference between the detected first and second current integral values.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: December 18, 2018
    Assignee: Toshiba Electron Tubes & Devices Co., Ltd.
    Inventor: Hiroshi Onihashi
  • Patent number: 10134563
    Abstract: Disclosed is a method of using a charged particle microscope for inspecting a sample mounted on a sample holder. The microscope is equipped with a solid state detector for detecting secondary particles emanating from the sample in response to irradiation of the sample with the primary beam, with the solid state detector in direct optical view of the sample. In some embodiments, the sample is mounted on a heater with a fast thermal response time. The method comprises contactless measurement of the temperature of the sample and/or sample holder using the solid state detector.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: November 20, 2018
    Assignee: FEI Company
    Inventors: Jacob Simon Faber, Lubomir Tuma, Timothy Burnett, Libor Novak
  • Patent number: 10111627
    Abstract: According to one embodiment, a radiation diagnostic apparatus includes an X-ray tube, radiation detecting elements, signal processing substrates, and processing circuitry. The signal processing substrates performs processing including at least A/D conversion processing on outputted signals of the radiation detecting elements and outputs processed signals as the outputted signals subjected to the processing. The processing circuitry identifies a non-observing element or a non-observing substrate based on information on an imaging region included in imaging conditions of an object, the non-observing element being a radiation detecting element of the radiation detecting elements which corresponds to a region other than the imaging region, and the non-observing substrate being a signal processing substrate of the signal processing substrates which corresponds to the non-observing element.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: October 30, 2018
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventor: Kenji Tomomura
  • Patent number: 10048391
    Abstract: An imaging detector module (112) of an imaging system includes at least one detector pixel (114) and self-diagnosing circuitry (116). The self-diagnosing circuitry includes a microprocessor (202) and at least measurement device (210). The microprocessor controls the at least measurement device to measure at least one parameter of the at least one detector pixel, wherein a value of the at least one parameter is indicative of a health state of the imaging system. A method includes employing self-diagnosing circuitry embedded in an imaging detector module to measure at least one parameter of at least one detector pixel of the imaging detector module. A value of the at least one parameter is indicative of a health state of the imaging detector. The method further includes generating, with the self diagnosing circuitry, a signal indicating a health state of the imaging detector module based on the measured at least one parameter.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: August 14, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Roger Steadman Booker, Gereon Vogtmeier
  • Patent number: 9931092
    Abstract: In an X-ray imaging system, first X-ray irradiation and second X-ray irradiation are performed in performing X-ray imaging once. A preview producing circuit subjects first image data outputted from a sensor panel after the first X-ray irradiation is finished to binning processing or thinning processing to produce a preview image. The produced image is transmitted through a communication I/F to a console while the sensor panel performs an accumulation operation in the second X-ray irradiation. The preview image is displayed on a monitor of the console in the second X-ray irradiation.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: April 3, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Takashi Tajima
  • Patent number: 9927537
    Abstract: A positron emission tomography (PET) photosensor output circuit configured to be operably coupled to a PET photosensor system is provided that includes a plurality of regional circuit portions and a summing portion. Each regional circuit portion is configured to be operably coupled to a corresponding photosensor system region and includes an input portion, a first branch, and a second branch. The first branch includes a delay unit and a switch. The second branch includes a sensor unit configured to place the switch in a closed position when a signal received via the input portion satisfies a threshold and to place the switch in an open position when the signal received via the input portion does not satisfy the threshold. The summing portion is configured to receive corresponding regional circuit outputs from the regional circuit portions, and to combine the regional circuit outputs to provide a summed output.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: March 27, 2018
    Assignee: General Electric Company
    Inventor: Chang Lyong Kim
  • Patent number: 9865644
    Abstract: With an image sensor in which the amplifier circuit is disposed at each pixel, there is such an issue that the threshold voltage of the transistor fluctuates so that the signal voltage fluctuates because a voltage is continuously applied between the source and the gate of the transistor at all times when using the amorphous thin film semiconductor as the transistor that constitutes an amplifier circuit. The gate-source potential of the TFT that constitutes the amplifier circuit is controlled so that the gate terminal voltage becomes smaller than the source terminal voltage in an integrating period where the pixels accumulate the signals, and controlled so that the gate terminal voltage becomes larger than the source terminal voltage in a readout period where the pixels output the signals.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: January 9, 2018
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventor: Hiroyuki Sekine
  • Patent number: 9859316
    Abstract: The present invention has an object of improving the operation stability of a semiconductor device that detects radiations without decreasing the yield thereof. A semiconductor device includes an active matrix substrate (50) including a plurality of TFTs (10) and a plurality of pixel electrode (20); a photoelectric conversion substrate (62) located to face the active matrix substrate (50); an upper electrode (64) provided on a surface of the photoelectric conversion substrate (62) opposite to the active matrix substrate (50); and a plurality of connection electrodes (72) provided between the active matrix substrate (50) and the photoelectric conversion substrate(62), the plurality of connection electrodes (72) being formed of metal material.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: January 2, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Atsushi Tomyo
  • Patent number: 9798019
    Abstract: An X-ray detector may include a plurality of pixels on a substrate, a first insulating layer configured to cover the plurality of pixels, an electrode block configured to penetrate the first insulating layer and be in contact with the plurality of pixels, a second insulating layer on the electrode block, and a metal wire configured to penetrate the second insulating layer and be in contact with the electrode block. Each of the plurality of pixels may include a first electrode on the substrate, a photoelectronic conversion device on the first electrode, and a second electrode on the photoelectronic conversion device.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: October 24, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Sang-uk Kim
  • Patent number: 9753159
    Abstract: A radiographic imaging control device is provided with a radiation detector, amplifiers and a controller. A plurality of pixels are arrayed in the radiation detector, each pixel including a sensor portion that generates charges in accordance with irradiated radiation and a switching element that is for reading out the charges generated at the sensor portion. Each amplifier is provided in correspondence with a respective pixel of the radiation detector, is equipped with a resetter that resets charges remaining at an integration capacitor, and amplifies an electronic signal according to the charges read out by the switching element from the corresponding pixel by a pre-specified amplification factor. In accordance with pre-specified conditions, the controller controls so as to alter a bias current supplied to the amplifiers in at least some periods of resetting by the resetter.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: September 5, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Naoto Iwakiri, Kouichi Kitano
  • Patent number: 9734858
    Abstract: It is possible to provide a new information recording/reproduction method and a device which can realize a small-size large-capacity memory having a characteristic equivalent to or higher than a hologram memory. The optical information recording/reproduction device includes: recording light generator (51) which generates a recording light (55) in a polarization state having two mutually orthogonal polarization components with a phase difference at an arbitrary polarization base; reproduction light generator (61) which generates a reproduction light (65) in a polarization state having only a single polarization component at a arbitrary polarization basis; recording medium (71) in which optical information is recorded by recording light (55) and the recorded optical information is reproduced by reproduction light; and optical information detector (polarimeter 81) which retrieves information light (72) after being applied to recording medium (71) and detects the light as optical information.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: August 15, 2017
    Assignee: UTSUNOMIYA UNIVERSITY
    Inventors: Daisuke Barada, Kiyonobu Tamura, Takashi Fukuda
  • Patent number: 9698184
    Abstract: With an image sensor in which the amplifier circuit is disposed at each pixel, there is such an issue that the threshold voltage of the transistor fluctuates so that the signal voltage fluctuates because a voltage is continuously applied between the source and the gate of the transistor at all times when using the amorphous thin film semiconductor as the transistor that constitutes an amplifier circuit. The gate-source potential of the TFT that constitutes the amplifier circuit is controlled so that the gate terminal voltage becomes smaller than the source terminal voltage in an integrating period where the pixels accumulate the signals, and controlled so that the gate terminal voltage becomes larger than the source terminal voltage in a readout period where the pixels output the signals.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: July 4, 2017
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventor: Hiroyuki Sekine
  • Patent number: 9661240
    Abstract: A pixel includes a conversion element detecting radiation, and a switch between the element and a signal line. A readout unit reads out a signal on the signal line. The readout unit includes a reset unit that resets a potential of the signal line. A period during which the readout unit reads out a signal on the signal line includes a first period during which the signal line is reset, and a signal on the signal line in a state that the switch is not turned on is read out, and a second period during which the signal line is reset, and a signal on the signal line due to the switch being turned on is read out. The processing unit calculates a difference between the signals read out in the second and first periods.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: May 23, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kentaro Fujiyoshi, Minoru Watanabe, Keigo Yokoyama, Masato Ofuji, Jun Kawanabe, Hiroshi Wayama
  • Patent number: 9647019
    Abstract: A TFT and manufacturing method thereof, an array substrate and manufacturing method thereof, an X-ray detector and a display device are disclosed. The manufacturing method includes: forming a gate-insulating-layer thin film (3?), a semiconductor-layer thin film (4?) and a passivation-shielding-layer thin film (5?) successively; forming a pattern (5?) that includes a passivation shielding layer through one patterning process, so that a portion, sheltered by the passivation shielding layer, of the semiconductor-layer thin film forms a pattern of an active layer (4a?); and performing an ion doping process to a portion, not sheltered by the passivation shielding layer, of the semiconductor-layer thin film to form a pattern comprising a source electrode (4c?) and a drain electrode (4b?). The source electrode (4c?) and the drain electrode (4b?) are disposed on two sides of the active layer (4a?) respectively and in a same layer as the active layer (4a?).
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: May 9, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Huichao Gao, Zongmin Tian, Peng Li
  • Patent number: 9635325
    Abstract: An imaging system may include an image sensor having an array of image pixels with a photosensitive region that generates image signals in response to light. The array may include photoluminescent material that absorbs light of a first range of wavelengths and emits light of a second range of wavelengths onto the photosensitive region. The first range of wavelengths may correspond to ultraviolet light, and the second range of wavelengths may correspond to visible light. The photoluminescent material may be formed over some or all of the image pixels. The array may include color filter elements that transmit light of a given color to the photosensitive region. The photoluminescent material may be adjusted to have a peak emission intensity at a color of light that corresponds to the given color of light transmitted by a given color filter element.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: April 25, 2017
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Swarnal Borthakur
  • Patent number: 9615811
    Abstract: A radiation imaging apparatus performs radiation image obtaining processing in accordance with an exposure instruction, and obtains a radiation image. Then the radiation imaging apparatus performs offset correction for the obtained radiation image, and displays it. The radiation imaging apparatus determines, in accordance with a predetermined criterion, whether or not offset images obtained by offset image obtaining processing are stable over time. Then, if it is determined that the offset images are not stable, offset correction is performed by using an offset image obtained by performing offset image obtaining processing, following the obtaining of the radiation image. If it is determined that the offset images are stable, the offset correction is performed by using an offset image obtained before the obtaining of the radiation image.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: April 11, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shinji Yamanaka
  • Patent number: 9585567
    Abstract: An imaging work station (20) includes one or more processors programmed to receive (170) an image depicting a distribution of a radiotracer in a brain or other region of interest. The radiotracer includes at least one of [18F]-Flutemetamol, [18F]-Florbetaben, and [18F]-Florbetapir which highlights amyloid deposits. The image and a template or an MRI image of the region of interest which includes a segmented anatomical feature, such as gray matter, are registered (180) to a common space. A volume representation of the image which depicts the distribution of the radiotracer in the segmented gray matter and suppresses the radiotracer outside of the segmented anatomical feature in white matter is extracted (210).
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: March 7, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Frank Olaf Thiele, Fabian Wenzel
  • Patent number: 9575191
    Abstract: Embodiments of a solid state photomultiplier are provided herein. In some embodiments, a solid state photomultiplier may include a microcell configured to generate an analog signal when exposed to optical photons, a quench resistor electrically coupled to the microcell in series; and a first switch disposed between the quench resistor and an output of the solid state photomultiplier, the first switch electrically coupled to the microcell via the quench resistor and configured to selectively couple the microcell to the output.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: February 21, 2017
    Assignee: General Electric Company
    Inventors: Sergei Ivanovich Dolinsky, David Leo McDaniel
  • Patent number: 9571786
    Abstract: Interpolating frames of a video may provide a technique for one or more of frame rate conversion, temporal upsampling for generating slow motion video, image morphing, virtual view synthesis, and/or other video applications. A system may be configured to interpolated frames of a video by leveraging frequency domain representations of individual frames. The frequency domain representations may be decomposed into set of discrete functions that make up the frequency domain representations. Corresponding functions from sets of functions associated with frames with which an interpolated frame is to be determined may be identified. Phase differences between corresponding functions may be determined. Interpolated functions between the corresponding functions may be determined based on the determined phased differences. Information describing spatial domain representations of interpolated frames may be determined based on the interpolated functions.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: February 14, 2017
    Assignees: ETH ZURICH, DISNEY ENTERPRISES, INC.
    Inventors: Henning Zimmer, Alexander Sorkine Hornung, Simone Meyer, Max Grosse, Oliver Wang
  • Patent number: 9536921
    Abstract: A radiation image-pickup device includes: a plurality of pixels each configured to generate signal charge based on radiation; and a field effect transistor used to read the signal charge from each of the plurality of pixels, wherein the field effect transistor includes a semiconductor layer including an active layer and a low concentration impurity layer formed to be adjacent to the active layer, and a first and a second gate electrode disposed to face each other with the active layer interposed therebetween, and one or both of the first and the second gate electrodes are provided in a region not facing the low concentration impurity layer.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: January 3, 2017
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Yasuhiro Yamada
  • Patent number: 9526470
    Abstract: A radiation detection device has: a scintillator for converting radiation into fluorescence; a photoelectric conversion unit for converting the fluorescence into an electric signal; and a reset light source unit for exposing reset light to the photoelectric conversion unit. A system control unit has an optical reset disabling unit for, based on a reset disabling instruction, disabling the exposure of the reset light output from the reset light source unit.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: December 27, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Nishino, Yasunori Ohta, Kouichi Kitano, Naoto Iwakiri, Haruyasu Nakatsugawa
  • Patent number: 9513379
    Abstract: A radiographic image capture device includes a radiation detector, an application section and a controller. The radiation detector includes plural detection pixels that detect a radiation application state and plural imaging pixels that capture a radiographic image. The application section applies a bias voltage to each of the plural detection pixels and to each of the plural imaging pixels. The controller effects control such that, if the radiation application amount detected by the detection pixels is equal to or greater than a first threshold value during a first state in which the bias voltage is applied to the plural detection pixels, the application section is caused to transition to a second state in which the bias voltage applied to the detection pixels is reduced.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: December 6, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Naoyuki Nishino, Naoto Iwakiri, Haruyasu Nakatsugawa, Yasunori Ohta
  • Patent number: 9482747
    Abstract: A mobile ultrasonic diagnostic device comprising: a battery; an adapter connection detection unit that detects the connection status of an AC adapter that supplies power to each constituent element of the device; and a processing determination unit (determination unit) that determines the processing for each constituent element on the basis of the connection status of the AC adapter. Each constituent element (a processing unit and constituent elements other than the processing unit) are processed on the basis of the processing determined by the processing determination unit (determination unit), and, as a result, the device can be safely used even if there is a possibility that power cannot be supplied from the battery.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: November 1, 2016
    Assignee: HITACHI, LTD.
    Inventors: Masa Yamamoto, Keigo Ninomiya
  • Patent number: 9472704
    Abstract: A radiation detector is disclosed, including a plurality of detector elements arranged adjacent to one another in a planar manner. In an embodiment, for the purpose of radiation detection, a semiconductor layer with an upper side and a lower side is present, the semiconductor layer on one of the sides including an electrode embodied so as to extend across a number of detector elements and electrodes subdivided into individual electrodes being arranged on the other side of the semiconductor layer so that by applying voltage between the electrodes of the two sides, an electrical field is generatable and each individual electrode is assigned an effective volume so as to collect charge in the semiconductor layer. In an embodiment, the individual electrodes are alternately connected to at least two different voltage potentials. Furthermore, a medical diagnostic system is disclosed, including at least one such radiation detector.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: October 18, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Björn Kreisler, Christian Schröter
  • Patent number: 9472559
    Abstract: It is an object to provide a memory device whose power consumption can be suppressed and a semiconductor device including the memory device. As a switching element for holding electric charge accumulated in a transistor which functions as a memory element, a transistor including an oxide semiconductor film as an active layer is provided for each memory cell in the memory device. The transistor which is used as a memory element has a first gate electrode, a second gate electrode, a semiconductor film located between the first gate electrode and the second gate electrode, a first insulating film located between the first gate electrode and the semiconductor film, a second insulating film located between the second gate electrode and the semiconductor film, and a source electrode and a drain electrode in contact with the semiconductor film.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: October 18, 2016
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yutaka Shionoiri, Hiroyuki Miyake, Kiyoshi Kato
  • Patent number: 9444001
    Abstract: A position sensitive detector includes a substrate, an absorber layer on the substrate, a barrier layer on the absorber layer, a contact layer on the barrier layer, and a first contact and a second contact on the contact layer. The barrier layer prevents a flow of majority carriers from the absorber layer to the contact layer. The position sensitive detector is sensitive to a lateral position between the first contact and the second contact of incident light on the contact layer.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: September 13, 2016
    Assignee: HRL Laboratories, LLC
    Inventors: Hasan Sharifi, Rajesh D. Rajavel, Terence J. De Lyon, Daniel Yap
  • Patent number: 9437770
    Abstract: A radiation detector is disclosed, including a plurality of detector elements arranged adjacent to one another in a planar manner. In an embodiment, for the purpose of radiation detection, a semiconductor layer with an upper side and a lower side is present, the semiconductor layer on one of the sides including an electrode embodied so as to extend across a number of detector elements and electrodes subdivided into individual electrodes being arranged on the other side of the semiconductor layer so that by applying voltage between the electrodes of the two sides, an electrical field is generatable and each individual electrode is assigned an effective volume so as to collect charge in the semiconductor layer. In an embodiment, the individual electrodes are alternately connected to at least two different voltage potentials. Furthermore, a medical diagnostic system is disclosed, including at least one such radiation detector.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: September 6, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Björn Kreisler, Christian Schröter
  • Patent number: 9383459
    Abstract: According to an embodiment, a photodetector includes a photodetecting element that has a pn junction and outputs a photocurrent corresponding to detected light, a voltage applying unit that applies a voltage to the photodetecting element, an obtaining unit that obtains the photocurrent detected by the photodetecting element, and a voltage controller. The voltage controller controls the voltage applying unit to apply, during a drive period, a drive voltage whose absolute value is not smaller than an avalanche breakdown voltage of the pn junction and which is in reverse bias with respect to the pn junction; and apply, during a standby period, any of a first standby voltage in forward bias, a second standby voltage with a voltage value of 0 V, and a third standby voltage whose absolute value is greater than 0 V, which is less than the drive voltage, and which is in reverse bias.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: July 5, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masaki Atsuta, Keita Sasaki, Hitoshi Yagi, Rei Hasegawa
  • Patent number: 9383458
    Abstract: The present invention provides radiation detector, radiographic imaging device and radiographic imaging system that may detect irradiated radiation while maintaining quality of radiographic image. The radiation detector has: pixels having a sensor portion that generates charges in accordance with light converted from irradiated radiation, TFT switch that outputs, to a signal line, charges read-out from the sensor portion, and radiation detection TFT switch that is not connected to a signal line; and radiation detection pixels that have the sensor portion, the TFT switch, and radiation detection TFT switch that is connected to a signal line and that outputs, to the signal line, charges read-out from the sensor portion. The radiation detection TFT switches are connected to radiation detection scan lines, and ON/OFF states are controlled by scan signals that are outputted from a radiation detection control circuit.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: July 5, 2016
    Assignee: FUJIFILM Corporation
    Inventor: Yoshihiro Okada
  • Patent number: 9316749
    Abstract: The present invention provides a radiation detector, a radiographic imaging device, a radiographic imaging system and a line capacitance adjusting method that may suppress image irregularities from occurring in the obtained radiographic images. Namely, the line capacitance difference between each of plural signal lines is reduced by adjusting elements (capacitors) connected to at least one of the plural signal lines.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: April 19, 2016
    Assignee: FUJIFILM Corporation
    Inventor: Yoshihiro Okada
  • Patent number: 9277896
    Abstract: A radiation detection apparatus includes conversion elements including a first electrode, a semiconductor layer, and a second electrode that are divided for each pixel; switching elements electrically connected to the first electrodes; and a first insulating layer that separates the conversion elements of adjacent pixels. The semiconductor layer is located between the first and second electrodes. A periphery of the semiconductor layer is located outside peripheries of the first and second electrodes. The semiconductor layer includes a first impurity semiconductor layer, a second impurity semiconductor layer, and an intrinsic semiconductor layer located between the first and second impurity semiconductor layers. Parameters of the apparatus are defined to set a residual charge 10 ?s after the switching element is turned on to be not higher than 2%.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: March 8, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masato Ofuji, Minoru Watanabe, Keigo Yokoyama, Jun Kawanabe, Kentaro Fujiyoshi, Hiroshi Wayama
  • Patent number: 9256306
    Abstract: A sensing apparatus including a first scan line, a second scan line, a readout line, a first sensing device and a second sensing device is provided. The first sensing device is coupled to the first scan line and the readout line, and senses a first energy, and outputs a first readout signal corresponding to the first energy to the readout line in response to a first scan signal on the first scan line. The first sensing device is reset in response to the first scan signal and a reference signal on the readout line. The first sensing device includes a first reset unit configured for resetting the first sensing device, where a first terminal of the first reset unit is coupled to the first scan line, and a control terminal of the first reset unit is coupled to the readout line. A driving method thereof is also provided.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: February 9, 2016
    Assignee: Industrial Technology Research Institute
    Inventors: Isaac Wing-Tak Chan, Chen-Wei Lin, Chih-Chieh Hsu
  • Patent number: 9257205
    Abstract: A detector module for a radiation detector in a radiation imaging apparatus is provided. The detector module includes a detecting element array including a plurality of detecting elements arranged in a matrix form in first and second directions orthogonal to each other, the detecting element array configured to allow radiation to penetrate through spaces defined between the detecting elements, an electronic circuit arranged on a radiation emission side of the detecting element array, and a radiation shielding body arranged on a radiation incident side of the detecting element array. The radiation shielding body includes a base material having radiation permeability and formed with a plurality of grooves extending in the first direction at respective positions corresponding to spaces between the detecting elements in the second direction, and a plurality of radiation shielding materials each inserted in a respective groove of the plurality of grooves.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: February 9, 2016
    Assignee: General Electric Company
    Inventors: Haruo Kurochi, Abdelaziz Ikhlef
  • Patent number: 9243959
    Abstract: An infrared detector capable of detecting an infrared spectrum having a wide bandwidth using a broadband light absorber. The infrared detector including a substrate, a light absorber disposed apart from the substrate at a distance, and a pair of thermal legs configured to support the light absorber such that the light absorber is spaced apart from the substrate by the distance. The light absorber includes at least one thermistor layer having a resistance value that varies according to temperature and at least two resonator layers disposed on at least one of upper and lower surfaces of the at least one thermistor layer.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: January 26, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sook-young Roh, Sung-hyun Nam, Hae-seok Park, Seok-ho Yun, Hyun-gue Hong
  • Patent number: 9204062
    Abstract: A thermal imaging camera may be used to capture a visible-light (VL) image and an infrared (IR) image. In some examples, the camera includes a range imaging camera module that captures the VL and an infrared camera module that captures the IR image. In such examples, the VL image may include a plurality of different portions that each correspond to a different portion of the scene and distance-to-target data associated with each of the different portions of the scene. The camera may align each of the plurality of different portions of the VL image based on the distance-to-target data associated with corresponding portions of the scene so as to correct a parallax error between the VL image and the IR image. The camera may then concurrently display the VL image in alignment with the IR image.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: December 1, 2015
    Assignee: Fluke Corporation
    Inventors: Peter A. Bergstrom, Thomas J. McManus, Kirk R. Johnson, Roger Schmidt
  • Patent number: 9197823
    Abstract: An X-ray detection device includes an X-ray detection panel having a plurality of gate-lines, a plurality of data-lines, a plurality of bias-lines, a plurality of pixel circuits, a gate driving circuit that sequentially provides a gate signal to the pixel circuits via the gate-lines when an X-ray detecting operation is performed, a readout integrated circuit that performs a readout operation of a detection signal that is output from the pixel circuits via the data-lines when the X-ray detecting operation is performed, a bias driving circuit that provides a forward-bias voltage or a reverse-bias voltage to the pixel circuits via the bias-lines, and an operation control circuit that controls a forward-biasing operation and an initializing operation to be simultaneously performed on the pixel circuits.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: November 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chul-Woo Shin, Kyung-Hun Yoon
  • Patent number: 9134432
    Abstract: A radiation imaging apparatus, comprising a sensor array in which a plurality of sensors configured to output signals corresponding to irradiated radiation, a detection unit configured to detect radiation, a driving unit configured to drive the sensor array, so as to initialize the plurality of sensors for each row repeatedly at least until the detection unit detects irradiation of radiation and to read out signals from the plurality of sensors for each row sequentially, and a processing unit configured to process signals from the sensor array, so as to correct a signal from the sensor on a row, of the plurality of sensors, which has been initialized during the irradiation of radiation, based on a timing of the initialization.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: September 15, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Iwashita, Toshio Kameshima, Tomoyuki Yagi, Katsuro Takenaka, Sho Sato, Eriko Sugawara, Hideyuki Okada
  • Publication number: 20150144797
    Abstract: Photomultipliers are disclosed which comprise circuitry for detecting photo electric events and generating short digital pulses in response. In one embodiment, the photomultipliers comprise solid state photomultipliers having an array of microcells. The microcells, in one embodiment, in response to incident photons, generate a digital pulse signal having a duration of about 2 ns or less.
    Type: Application
    Filed: November 22, 2013
    Publication date: May 28, 2015
    Applicant: General Electric Company
    Inventors: Sergei Ivanovich Dolinsky, Jianjun Guo
  • Patent number: 9035264
    Abstract: An X-ray detector and a heat dissipating method are provided. The heat dissipating method comprises providing an optical sensing panel over an internal support of the X-ray detector and providing a digital printed circuit board directly on a back cover, so that there is a gap between the digital printed circuit board and the optical sensing panel that is fixed by the internal support. The X-ray detector comprises an optical sensing panel bonded to the outer side of an internal support; and a digital printed circuit board bonded to the inner side of a back cover, wherein there is a gap between the digital printed circuit board and the optical sensing panel that is fixed by the internal support.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: May 19, 2015
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Tao Chen, Xiaojie Wang
  • Publication number: 20150130948
    Abstract: A semiconductor image sensor is repeatedly exposed to high-energy photons while a visible light obstructer is in place to block visible light from impinging on the sensor to generate a set of images from the exposures. A composite image is generated from the set of images with common noise substantially removed so the composite image includes image information corresponding to radiated pixels that absorbed at least some energy from the high-energy photons. The composite image is processed to determine a set of bright points in the composite image, each bright point being above a first threshold. The set of bright points is processed to identify lines with two or more bright points that include pixels therebetween that are above a second threshold and identify a presence of the high-energy particles responsive to a number of lines.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 14, 2015
    Applicant: BATTELLE ENERGY ALLIANCE, LLC
    Inventor: JOSHUA JOSEPH COGLIATI
  • Patent number: 9029794
    Abstract: An X-ray matrix imager is configured to operate based on a multiple-gate-line driving scheme and a shared-data-line driving scheme. The X-ray matrix imager includes a matrix with multiple pixels, multiple gate line sets, multiple data lines, multiple gate drivers, multiple row multiplexers, and multiple pull-down units. Each gate line sets includes a first gate line coupled to a first pixel and a second gate line coupled to a second pixel adjacent to the first pixel. Each data line is coupled to the multiple gate line sets for receiving charges accumulated on the pixels. Each row multiplexer is configured to selectively couple a corresponding gate driver to the first gate line or the second gate line in a corresponding gate line set. Each pull-down unit is configured to couple the first gate line to a constant voltage when the first gate line is not coupled to the corresponding gate driver.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: May 12, 2015
    Assignee: Varian Medical Systems, Inc.
    Inventors: Richard Weisfield, Ivan P. Mollov, Pieter Gerhard Roos
  • Patent number: 9025730
    Abstract: Systems and methods for braking and releasing one or more pivot joints used in an X-ray positioning device are described. The systems and methods use a support arm that extends between a main assembly of the x-ray positioning device and an X-ray imaging assembly with an X-ray source and an X-ray detector that are disposed nearly opposite to each other. The support arm includes one or more pivot joints (such as horizontal, lateral, and/or orbital pivot joints) that allow the imaging assembly to move with respect to the main assembly. The pivot joints can each be connected to an automated braking system that is capable of selectively locking and unlocking a corresponding pivot joint, as indicated by a user-controlled switching mechanism. The braking systems containing multiple pivot joints can be individually controlled by separate switching mechanisms or simultaneously controlled by a single switching mechanism. Other embodiments are described.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: May 5, 2015
    Assignee: General Electric Company
    Inventors: David Ellis Barker, John Matthew Simmons