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公开(公告)号：US6163027A
公开(公告)日：2000-12-19
申请号：US158888
申请日：1998-09-23
CPC分类号： A61B6/102 , G01T1/1648
摘要： A scintillation camera having a detector with a surface and designed to form a tomographic image of a subject from radiation emitted from radio isotope administered to the subject and detected by the detector. The camera comprises a data acquiring device for acquiring data required to reconstruct a tomographic image of the subject, and a detector holder for holding the detector at a predetermined distance from the body surface of the subject while the data acquiring device is acquiring the data. The detector holder includes a sensor located between the subject and the detection surface of the detector, a sensor control circuit for controlling the sensor and detecting ON/OFF state of the sensor, and a detector moving device for moving the detector toward and away from the subject in accordance with the ON/OFF state detected by the sensor control circuit.
摘要翻译： 一种闪烁照相机，其具有具有表面的检测器，并被设计成由施用于被检体并由检测器检测的放射性同位素发射的辐射形成受检者的断层图像。 相机包括：数据获取装置，用于获取重建被摄体的断层图像所需的数据;以及检测器保持器，用于在数据获取装置获取数据时将检测器保持在距离被检体的身体表面预定距离处。 检测器支架包括位于被检体和检测器的检测表面之间的传感器，用于控制传感器并检测传感器的ON / OFF状态的传感器控制电路，以及用于将检测器朝向和远离 根据由传感器控制电路检测到的ON / OFF状态。
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公开(公告)号：US5925882A
公开(公告)日：1999-07-20
申请号：US845239
申请日：1997-04-21
CPC分类号： A61B6/102 , G01T1/1648
摘要： A scintillation camera having a detector with a surface and designed to form a tomographic image of a subject from radiation emitted from radioisotope administered to the subject and detected by the detector. The camera comprises a data acquiring device for acquiring data required to reconstruct a tomographic image of the subject, and a detector holder for holding the detector at a predetermined distance from the body surface of the subject while the data acquiring device is acquiring the data. The detector holder includes a sensor located between the subject and the detection surface of the detector, a sensor control circuit for controlling the sensor and detecting ON/OFF state of the sensor, and a detector moving device for moving the detector toward and away from the subject in accordance with the ON/OFF state detected by the sensor control circuit.
摘要翻译： 一种闪烁照相机，其具有具有表面的检测器，并被设计成从施用于被检体的放射性同位素发射的辐射形成受检者的断层图像，并由检测器检测。 相机包括：数据获取装置，用于获取重建被摄体的断层图像所需的数据;以及检测器保持器，用于在数据获取装置获取数据时将检测器保持在距离被检体的身体表面预定距离处。 检测器支架包括位于被检体和检测器的检测表面之间的传感器，用于控制传感器并检测传感器的ON / OFF状态的传感器控制电路，以及用于将检测器朝向和远离 根据由传感器控制电路检测到的ON / OFF状态。
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公开(公告)号：US5625191A
公开(公告)日：1997-04-29
申请号：US142050
申请日：1993-10-28
CPC分类号： A61B6/102 , G01T1/1648
摘要： A scintillation camera having a detector with a surface and designed to form a tomographic image of a subject from radiation emitted from radio isotope administered to the subject and detected by the detector. The camera comprises a data acquiring device for acquiring data required to reconstruct a tomographic image of the subject, and a detector holder for holding the detector at a predetermined distance from the body surface of the subject while the data acquiring device is acquiring the data. The detector holder includes a sensor, which may for example be an ultrasonic sensor, a pressure sensor, a tension sensor or an optical sensor, located between the subject and the detection surface of the detector, a sensor control circuit for controlling the sensor and detecting ON/OFF state of the sensor, and a detector moving device for moving the detector toward and away from the subject in accordance with the ON/OFF state detected by the sensor control circuit.
摘要翻译： 一种闪烁照相机，其具有具有表面的检测器，并被设计成由施用于被检体并由检测器检测的放射性同位素发射的辐射形成受检者的断层图像。 相机包括：数据获取装置，用于获取重建被摄体的断层图像所需的数据;以及检测器保持器，用于在数据获取装置获取数据时将检测器保持在距离被检体的身体表面预定距离处。 检测器支架包括传感器，传感器可以是位于被检体和检测器的检测表面之间的超声波传感器，压力传感器，张力传感器或光学传感器，用于控制传感器和检测的传感器控制电路 传感器的ON / OFF状态，以及根据由传感器控制电路检测到的ON / OFF状态使检测器朝向和远离被检体移动的检测器移动装置。
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公开(公告)号：US06590215B2
公开(公告)日：2003-07-08
申请号：US09827439
申请日：2001-04-05
IPC分类号： G01T124
CPC分类号： H04N5/3456 , A61B6/037 , H04N5/32
摘要： A method for detecting an active pixel in a sensor having a plurality of addressable pixels, comprising detecting a trigger event that causes a pixel to go active and setting a corresponding resettable latch from an initial unset logic state to a set logic state and establishing a time window during which another pixel which becomes active is assumed to originate from the same trigger event. For all pixels that become active within the time window a corresponding analog value of the pixel is sampled and held in response to a logic signal indicative of another pixel currently being active, and an incident time of the pixel going active is established. Each of the latches in the segment is sparsely read so as successively to identify latches which are in the set logic state each corresponding to an active pixel having a known address in the sensor segment. The known address of each active pixel is associated with the incident time of the pixel going active and the respective sampled and held analog value. The process is repeated respect of successive active pixels, after which the latches are reset.
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5.发明授权Apparatus for calibrating photon-counting type of radiation detector and method of calibrating the same 有权用于校准光子计数类型的放射线检测器的装置及其校准方法公开(公告)号：US09351701B2
公开(公告)日：2016-05-31
申请号：US14111945
申请日：2012-04-20
CPC分类号： A61B6/585 , A61B6/025 , A61B6/032 , A61B6/14 , A61B6/4233 , A61B6/4241 , A61B6/482 , G01T1/171 , G01T1/243
摘要： 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.
摘要翻译： 提供了一种用于光子计数类型的辐射检测器的校准装置。 在该装置中，放射线的放射状态被设定为使得入射到多个检测模块上的辐射（X射线）的粒子以等于或小于预定的概率堆叠在彼此上 值。 在该放射状态的设定下，在多个检测模块之间使辐射的检测灵敏度一致。 使用这种均匀的结果，每个通道包括多个检测模块，鉴别电路和数据计算电路以及每个通道中的每个鉴别电路，由每个由像素组成的像素的每个通道进一步使辐射的检测灵敏度均匀。
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公开(公告)号：US08433033B2
公开(公告)日：2013-04-30
申请号：US12083777
申请日：2006-10-19
申请人： Yasuo Harata , Kazuyuki Araki , Koichi Ogawa , Tsutomu Yamakawa , Takashi Sue
发明人： Yasuo Harata , Kazuyuki Araki , Koichi Ogawa , Tsutomu Yamakawa , Takashi Sue
摘要： A panoramic imaging apparatus is provided, which is able to freely display a focus-optimized internal structural image of the tooth row depending on a position using image data acquired by only one-time X-ray panoramic imaging from an arbitrary section along a patient's tooth row.The panoramic imaging apparatus comprise an X-ray source (31) and a detector (32) outputting a digital electrical signal depending on an incident X-ray at a constant frame rate. This apparatus further comprises means (24) for moving a pair of the X-ray source and the detector around an object in a state where the X-ray source and the detector are opposed to each other with the object located therebetween, means (54) for sequentially storing, as frame data, the electrical signal outputted by the detector, means (56) for producing a panoramic image of a desired section of the object based on the frame data, and means (56, 57, 58) for producing a partial sectional image using the frame data, the partial sectional image being an image of a partial region specified on the panoramic image and being focused depending on a desired position in an imaging space.
摘要翻译： 提供了一种全景成像装置，其能够根据使用从患者牙齿的任意部分仅通过一次X射线全景成像获得的图像数据的位置自由地显示齿列的焦点优化内部结构图像 行。 全景成像装置包括X射线源（31）和检测器（32），其以恒定的帧速率输出取决于入射的X射线的数字电信号。 该装置还包括用于在X射线源和检测器彼此相对的状态下使一对X射线源和检测器围绕物体移动的装置（24），其中物体位于它们之间，装置（54） ），用于将由检测器输出的电信号作为帧数据顺序存储，用于基于帧数据产生对象的期望部分的全景图像的装置（56），以及用于产生所述对象的装置（56,57,58） 使用帧数据的部分剖面图像，部分截面图像是在全景图像上指定的部分区域的图像，并且根据成像空间中的期望位置进行聚焦。
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公开(公告)号：US20120328071A1
公开(公告)日：2012-12-27
申请号：US13387827
申请日：2010-08-05
申请人： Akitoshi Katsumata , Koichi Ogawa , Tsutomu Yamakawa , Masahiro Tsujita , Tatsuya Nagano , Kazuhide Kitou
发明人： Akitoshi Katsumata , Koichi Ogawa , Tsutomu Yamakawa , Masahiro Tsujita , Tatsuya Nagano , Kazuhide Kitou
CPC分类号： A61B6/14 , A61B6/037 , A61B6/4028 , A61B6/469 , A61B6/5223
摘要： A radiation imaging apparatus is provided. The apparatus has moving means moving a pair of an X-ray tube and a detector relatively to an object. The apparatus further has means which acquire digital frame data outputted from the detector. The frame data are acquired from the same portion being imaged of the same object at different time points. The apparatus has means which use the frame data to produce a plurality of three-dimensional optimally focused images at the respective time points, an actual position and shape of the portion being imaged being reflected in the images, and means which estimate changes of the plural three-dimensional optimally focused images.
摘要翻译： 提供了一种放射线成像装置。 该装置具有相对于物体移动一对X射线管和检测器的移动装置。 该装置还具有获取从检测器输出的数字帧数据的装置。 从在不同时间点对同一对象成像的相同部分获取帧数据。 该装置具有使用帧数据在各个时间点产生多个三维最佳聚焦图像的装置，被成像部分的实际位置和形状被反映在图像中，以及估计多个图像的变化的装置 三维最佳聚焦图像。
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公开(公告)号：US08008980B2
公开(公告)日：2011-08-30
申请号：US12584168
申请日：2009-09-01
IPC分类号： H03B1/00
CPC分类号： H03H9/0547 , H03H9/1021 , Y10T29/49005
摘要： A surface mount crystal oscillator comprises a crystal blank, an IC chip having an oscillation circuit integrated thereon, and a hermetic package for accommodating the crystal blank and IC chip therein. The hermetic package comprises a substantially rectangular ceramic substrate formed with a metal film which makes a round on one main surface thereof, and a concave metal cover having an open end face bonded to the metal film. The IC chip is secured to the one main surface of the ceramic substrate through ultrasonic thermo-compression bonding using bumps, the crystal blank is disposed above the IC chip, and the ceramic substrate has the one main surface formed as a flat surface.
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公开(公告)号：US07985293B2
公开(公告)日：2011-07-26
申请号：US11882301
申请日：2007-07-31
申请人： Yoshiaki Sasage , Tsutomu Yamakawa
发明人： Yoshiaki Sasage , Tsutomu Yamakawa
IPC分类号： C04B24/24
CPC分类号： C04B28/02 , C04B20/1018 , C04B2111/72 , C04B24/383 , C04B2103/402 , C04B2103/406 , C04B2103/50 , C04B14/06
摘要： A hydraulic composition is provided. This composition exhibits an improved workability in its coating with a trowel, and accordingly, an improved working efficiency with no adverse effects on its physical properties. The hydraulic composition comprises at least one surfactant selected from anionic surfactants having foaming ability (group A), at least one surfactant selected from surfactants which are nonionic antifoaming agents (group B), and a water-soluble cellulose ether. The surfactants of group A and group B are respectively added at 0.000005 to 0.004% by weight (solid content) in relation to the powder ingredients in the hydraulic composition, and the water-soluble cellulose ether is added at 0.02 to 1.2% by weight of the hydraulic composition.
摘要翻译： 提供水硬性组合物。 该组合物在用t刀涂料中表现出改进的可加工性，因此提高了工作效率，对其物理性质没有不利影响。 水硬性组合物包含至少一种选自具有发泡性的阴离子表面活性剂（A组），至少一种选自非离子消泡剂（B组）的表面活性剂和水溶性纤维素醚的表面活性剂的表面活性剂。 相对于水硬性组合物中的粉末成分，A组和B组的表面活性剂分别以0.000005〜0.004重量％（固体含量）添加，水溶性纤维素醚的添加量为0.02〜1.2重量％ 水硬组合物。
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公开(公告)号：US07588635B2
公开(公告)日：2009-09-15
申请号：US12032078
申请日：2008-02-15
申请人： Tsutomu Yamakawa , Yoshiaki Sasage
发明人： Tsutomu Yamakawa , Yoshiaki Sasage
CPC分类号： C04B28/02 , C04B28/14 , C04B40/0039 , C04B2111/62 , C04B14/06 , C04B24/383 , C04B2103/12 , C04B2103/22 , C04B2103/302 , C04B2103/50 , C04B14/28 , C04B22/064
摘要： Hydraulic compositions comprising a setting accelerator, a water-soluble cellulose ether having a degree of alkyl substitution of 1.6 to 2.5 which is a water-soluble alkyl cellulose or a water-soluble hydroxyalkyl alkyl cellulose, and water are useful as self-leveling compositions having an excellent self-leveling capability, a minimal change with time of fluidity, and a short setting time, or as cement mortar compositions having a long open time and a short setting time.
摘要翻译： 包含凝固促进剂，烷基取代度为1.6〜2.5的水溶性纤维素醚（水溶性烷基纤维素或水溶性羟烷基烷基纤维素）和水的水溶性组合物和水可用作自流平组合物，其具有 优异的自流平能力，流动性随时间的变化小，凝固时间短，或作为具有长打开时间和短凝固时间的水泥砂浆组合物。
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