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    • 62. 发明授权
    • Photodetector having an electrostatic recording body and photodetecting method thereof
    • 具有静电记录体的光检测器及其光电检测方法
    • US07301135B2
    • 2007-11-27
    • US10153792
    • 2002-05-24
    • Takashi Shoji
    • Takashi Shoji
    • H01L31/00
    • H01L31/0272G03G15/758G03G2215/00957G11B9/08H01L31/09
    • An electrostatic recording body is constructed by laminating a glass substrate transmissive of recording light, a first conductive layer transmissive of recording light, a photoconductive layer exhibiting conductivity by receiving recording light, an insulating dielectric layer, and a second conductive layer transmissive of readout light, in this order. DC voltage is applied to the electrostatic recording body by a power source to charge both conductive layers, and an object is irradiated with light from a recording light irradiating means, thereby recording a electrostatic latent image at an interface between the photoconductive layer and the dielectric layer. Then, the conductive layers are short-circuited and charged at the same potential, thereby redistributing electrical charges. Exposure is performed by scanning with readout light from a readout exposure means, and current flowing out of the electrostatic recording body is detected by a current detecting means, thus reading out the electrostatic latent image.
    • 静电记录体是通过层叠透射记录光的玻璃基板,透过记录光的第一导电层,通过接收记录光而显示导电性的光电导层,绝缘电介质层和透过读出光的第二导电层构成的, 按此顺序 通过电源对静电记录体施加直流电压以对两个导电层充电,并且用来自记录光照射装置的光照射物体,从而在光电导层和电介质层之间的界面处记录静电潜像 。 然后,导电层以相同的电位被短路并充电,从而重新分配电荷。 通过用读取曝光装置的读出光进行扫描来进行曝光,并且通过电流检测装置检测从静电记录体流出的电流,从而读出静电潜像。
    • 63. 发明授权
    • X-ray imaging device
    • X射线成像装置
    • US07254214B2
    • 2007-08-07
    • US10969052
    • 2004-10-21
    • Takashi Shoji
    • Takashi Shoji
    • H05G1/64
    • A61B6/585A61B6/4291A61B6/502A61B6/542H04N5/32
    • An X-ray imaging device is equipped with a solid state detector, for recording image information by being irradiated with X-rays that bear image information and for outputting image signals that represent the recorded image information, and an X-ray dosage detector for detecting the dosage of irradiated X-rays. The X-ray dosage detector is provided between an X-ray source and the solid state detector, thereby enabling accurate measurement of the X-ray dosage, without being influenced by the solid state detector. In addition, the X-ray dosage detector is equipped with a photoconductive layer. Therefore, the X-ray dosage detector can be made thinner than conventional X-ray dosage detectors, which are constituted by a fluorescent plate, a light collecting field, a light transmitting plate, and a light shielding plate. Accordingly, decreases in resolution of images detected by the solid state detector can be prevented.
    • X射线成像装置配备有固态检测器,用于通过照射具有图像信息的X射线并输出表示记录图像信息的图像信号来记录图像信息,以及X射线剂量检测器,用于检测 照射X射线的剂量。 X射线剂量检测器设置在X射线源和固态检测器之间,从而能够精确地测量X射线剂量,而不受固态检测器的影响。 此外,X射线剂量检测器配备有光电导层。 因此,X射线剂量检测器可以比由荧光板,聚光场,透光板和遮光板构成的常规X射线剂量检测器薄。 因此,可以防止由固态检测器检测到的图像的分辨率的降低。
    • 66. 发明申请
    • Mammography apparatus and detecting unit
    • 乳房X线摄影仪和检测单元
    • US20050111617A1
    • 2005-05-26
    • US10968073
    • 2004-10-20
    • Takashi Shoji
    • Takashi Shoji
    • G01T1/00A61B6/00G01T1/02G01T1/29G01T7/00G03B42/02A61B6/04G01J1/00G01T1/24
    • G01T1/2928A61B6/4233A61B6/4291A61B6/4411A61B6/502A61B6/542G01T1/026
    • Detection accuracy of X-ray dosages, to be applied to control the amount of irradiated X-rays, is improved in a mammography apparatus that employs solid state detectors as X-ray image detecting means, and that is capable of interchangeably utilizing solid state detectors of various sizes, without adversely influencing detection of images by the solid state detector. A solid state detector, for recording image information by receiving irradiation of X-rays that bear the image information, and for outputting image signals that represent the recorded image information, an X-ray dosage detector, for detecting the amount of irradiated X-rays, and a moving grid, for removing scattered radiation, are housed within a detecting unit, stacked in this order. The detecting unit is configured to be removably attachable to an imaging table of a mammography apparatus. Thereby, interchangeable use of detecting units having solid state detectors of various sizes housed therein is enabled.
    • 在采用固态检测器作为X射线图像检测装置的乳房X线照相装置中,改善了用于控制照射的X射线量的X射线剂量的检测精度,并且能够互换地利用固态检测器 各种尺寸,不会对固态检测器对图像的检测产生不利影响。 一种固态检测器,用于通过接受承载图像信息的X射线的照射来记录图像信息,并且用于输出表示记录图像信息的图像信号,X射线剂量检测器,用于检测照射的X射线量 ,并且用于去除散射的辐射的移动网格被容纳在检测单元内,以此顺序堆叠。 检测单元构造成可移除地附接到乳房X线照相术装置的成像台。 从而能够互换使用具有容纳在其中的各种尺寸的固态检测器的检测单元。
    • 68. 发明授权
    • Reception unit for receiving a frequency division multi-accessed signal
based on plural spread signals and method for receiving the same
    • 接收单元,用于基于多个扩展信号接收频分多址信号及其接收方法
    • US5949767A
    • 1999-09-07
    • US630435
    • 1996-04-10
    • Takashi Shoji
    • Takashi Shoji
    • H04B1/707H04J1/05H04J13/00H04B7/208
    • H04J13/00H04J1/05H04B1/707
    • A reception unit for receiving a frequency division multi-accessed signal based on not more than n (n is an integer) spread signals derived from spreading a carrier includes a conversion device for converting a received signal into a quantizable intermediate frequency band signal. Also included is a device for converting the intermediate frequency band signal into a digital signal and outputting a digital intermediate frequency band signal, n units of frequency converters respectively corresponded with n spread signals one by one for frequency converting the digital intermediate frequency band signal so that a center frequency of a corresponding spread signal among the n spread signals becomes 0 Hz, and n units of FIR filters respectively corresponding with the n spread signals one by one for passing only a corresponding spread signal among the frequency converted digital intermediate frequency band signals. A selector is provided for selecting and outputting signals outputted from the n units of FIR filters, a controller is provided for controlling frequency conversion conducted by the n units of frequency converters and filtering conducted by the n units of FIR filters, and a device is provided for inverse-spreading an output signal of the selector.
    • 一种接收单元,用于基于不大于n(n是整数)接收分频多址信号,用于从扩展载波导出的扩展信号包括用于将接收信号转换成可量化中频带信号的转换装置。 还包括用于将中频带信号转换为数字信号并输出​​数字中频带信号的装置,分别对应于n个扩频信号的n个频率转换器,用于频率转换数字中频带信号,使得 n个扩展信号中对应的扩展信号的中心频率成为0Hz,分别对应于n个扩展信号的n个单位的FIR滤波器,用于仅在频率转换后的数字中频带信号中仅通过相应的扩展信号。 提供了一种用于选择和输出从n个FIR滤波器输出的信号的选择器,提供控制器用于控制由n个单元的变频器进行的变频和由n个FIR滤波器进行的滤波,并且提供一个装置 用于反向扩展选择器的输出信号。
    • 69. 发明授权
    • VOX discrimination device
    • VOX识别装置
    • US5822725A
    • 1998-10-13
    • US742349
    • 1996-11-01
    • Masahiro KomatsuTakashi Shoji
    • Masahiro KomatsuTakashi Shoji
    • G10L11/02H04B14/04H04M1/00G10L5/00
    • G10L25/78G10L2025/932G10L25/21Y02B60/50
    • In a radio communication system such as a digital automobile telephone, a VOX controller stops a transmission of a frame having no voice data to perform power savings, and a VOX device discriminates whether the voice data are present or absent in each frame. In a reference power measuring circuit, all or selected pilot signals of a received frame are oppositely rotated using theoretical values of the pilot signals to uniform their phases, and in-phase vector synthesis is conducted. The vector synthesis result is averaged by the number of the synthesis symbols, and an absolute value of the averaged vector value becomes the desired signal reference power X. In a fading compensation circuit, by using the previous and next pilot signals of a data part, each fading vector is calculated. In a power measuring circuit, the data upon which the fading compensation has been conducted are oppositely rotated to uniform their phases, and in-phase vector synthesis is carried out. The vector synthesis result is averaged by the number of the synthesis symbols, and an absolute value of the averaged vector value become a received signal power Y. In a discrimination circuit, the desired signal reference power X and the received signal power Y are compared with each other to carry out a VOX discrimination.
    • 在诸如数字汽车电话的无线电通信系统中,VOX控制器停止没有语音数据的帧的传输以执行功率节省,并且VOX设备鉴别每个帧中是否存在语音数据。 在参考功率测量电路中,使用导频信号的理论值使接收帧的全部或选定的导频信号相反地旋转,使其相位均匀,并进行同相矢量合成。 矢量合成结果由合成符号的数目进行平均,平均矢量值的绝对值成为期望的信号参考功率X.在衰落补偿电路中,通过使用数据部分的前一个和下一个导频信号, 计算每个衰落矢量。 在功率测量电路中,进行衰落补偿的数据相反地旋转以使其相位均匀,并进行同相矢量合成。 矢量合成结果通过合成符号的数目进行平均,平均矢量值的绝对值成为接收信号功率Y.在鉴别电路中,将期望的信号参考功率X和接收信号功率Y与 彼此进行VOX歧视。