公开(公告)号：US07254214B2

公开(公告)日：2007-08-07

申请号：US10969052

申请日：2004-10-21

申请人： Takashi Shoji

发明人： Takashi Shoji

IPC分类号： H05G1/64

CPC分类号： A61B6/585 ,  A61B6/4291 ,  A61B6/502 ,  A61B6/542 ,  H04N5/32

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20070086567A1

公开(公告)日：2007-04-19

申请号：US11581487

申请日：2006-10-17

申请人： Yoshiyuki Kataoka ,  Hisayuki Kohno ,  Masatsugu Kuraoka ,  Takashi Shoji ,  Yasujiro Yamada

发明人： Yoshiyuki Kataoka ,  Hisayuki Kohno ,  Masatsugu Kuraoka ,  Takashi Shoji ,  Yasujiro Yamada

IPC分类号： G01N23/223 ,  G01T1/36

CPC分类号： G01N23/223 ,  G01N2223/076

摘要： A scanning X-ray fluorescence spectrometer includes a quantitatively analyzing device (18) which calculates the concentration of hexavalent chrome based on the fact that the peak spectroscopic angle, at which the maximum intensity is attained in Cr-Kα line (22), changes depending on the ratio of the concentration of the hexavalent chrome vs. the concentration of the intensity of the total chrome. A plurality of detecting device (23) having different resolutions as a combination of a divergence slit (11), a spectroscopic device (6), a receiving slit (20) and a detector (8) is provided such that when the change of the peak spectroscopic angle is to be detected, a detecting device (23B) having a higher resolution than that of the detecting device (23A), which is selected when the concentration or the intensity of the total chrome is to be determined, is selected.

摘要翻译： 扫描X射线荧光光谱仪包括：计算六价铬浓度的定量分析装置（18），其基于在Cr-Kalpha线（22）中获得的最大强度的峰值分光角随着取决于 关于六价铬的浓度与总铬的强度的浓度的比率。 具有分散狭缝（11），分光装置（6），接收狭缝（20）和检测器（8）的组合的具有不同分辨率的多个检测装置（23）被设置成使得当 要检测峰值分光角度，选择当要确定总铬的浓度或强度时选择的具有比检测装置（23A）高的分辨率的检测装置（23B） 。

公开(公告)号：US20060219926A1

公开(公告)日：2006-10-05

申请号：US11393838

申请日：2006-03-31

申请人： Takashi Shoji ,  Masakazu Nakajo

发明人： Takashi Shoji ,  Masakazu Nakajo

IPC分类号： G01T1/24

CPC分类号： A61B6/4266 ,  A61B6/4291 ,  A61B6/4452 ,  A61B6/5235 ,  H04N5/32 ,  H04N5/3415

摘要： Radiation detector units provided with solid-state radiation detectors are supported on a supporting section, such that the radiation detector units are located at different distances from a radiation source and arrayed in a one-dimensional direction or two-dimensional directions. One of the radiation detector units is taken as a reference unit. Image size enlargement or reduction processing is performed on each of image signals outputted from the radiation detector units other than the reference unit and in accordance with a ratio between a distance from the radiation source to the reference unit and a distance from the radiation source to each of the radiation detector units other than the reference unit. Image composing processing is performed on the image signal outputted from the reference unit and processed image signals obtained from the image size enlargement or reduction processing.

公开(公告)号：US20050111617A1

公开(公告)日：2005-05-26

申请号：US10968073

申请日：2004-10-20

申请人： Takashi Shoji

发明人： Takashi Shoji

IPC分类号： G01T1/00 ,  A61B6/00 ,  G01T1/02 ,  G01T1/29 ,  G01T7/00 ,  G03B42/02 ,  A61B6/04 ,  G01J1/00 ,  G01T1/24

CPC分类号： G01T1/2928 ,  A61B6/4233 ,  A61B6/4291 ,  A61B6/4411 ,  A61B6/502 ,  A61B6/542 ,  G01T1/026

摘要： 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.

摘要翻译： 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。

公开(公告)号：USD437179S1

公开(公告)日：2001-02-06

申请号：US29119107

申请日：2000-02-24

申请人： Norikazu Ozaki ,  Takashi Shoji ,  Hisayoshi Matoba

设计人： Norikazu Ozaki ,  Takashi Shoji ,  Hisayoshi Matoba

公开(公告)号：US5949767A

公开(公告)日：1999-09-07

申请号：US630435

申请日：1996-04-10

申请人： Takashi Shoji

发明人： Takashi Shoji

IPC分类号： H04B1/707 ,  H04J1/05 ,  H04J13/00 ,  H04B7/208

CPC分类号： H04J13/00 ,  H04J1/05 ,  H04B1/707

摘要： 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.

摘要翻译： 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。

公开(公告)号：US5822725A

公开(公告)日：1998-10-13

申请号：US742349

申请日：1996-11-01

申请人： Masahiro Komatsu ,  Takashi Shoji

发明人： Masahiro Komatsu ,  Takashi Shoji

IPC分类号： G10L11/02 ,  H04B14/04 ,  H04M1/00 ,  G10L5/00

CPC分类号： G10L25/78 ,  G10L2025/932 ,  G10L25/21 ,  Y02B60/50

摘要： 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.

摘要翻译： 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。

公开(公告)号：US4900912A

公开(公告)日：1990-02-13

申请号：US293856

申请日：1989-01-05

申请人： Takashi Shoji

发明人： Takashi Shoji

IPC分类号： B41J2/44 ,  H01S5/068 ,  H01S5/0683 ,  H04B10/00 ,  H04B10/07 ,  H04B10/293 ,  H04B10/564 ,  H04B10/572 ,  H05B33/08

CPC分类号： H05B33/0851 ,  H01S5/0683

摘要： A driver circuit for driving a semiconductor light-emitting device such as a semiconductor laser includes a voltage-controlling amplifier for controlling a light-emitting current which enables the semiconductor light-emitting device to emit light. The output voltage of the voltage-controlling amplifier is dependent on a light-quantity command voltage signal applied thereto. Since the light-emitting current can be directly varied by the voltage-controlling amplifier, the quantity of the emitted light can vary with a sufficiently fast response to follow the light-quantity command signal. The quantity of the emitted light is maintained at the level of the light-quantity command signal under feedback control by a current-controlling amplifier.

摘要翻译： 用于驱动诸如半导体激光器的半导体发光器件的驱动电路包括用于控制使半导体发光器件发光的发光电流的电压控制放大器。 电压控制放大器的输出电压取决于施加到其上的光量指令电压信号。 由于可以通过电压控制放大器直接改变发光电流，所以发射光的量可以随着光量指令信号的足够快的响应而变化。 发射光的量由电流控制放大器在反馈控制下保持在光量指令信号的电平。

公开(公告)号：US4849980A

公开(公告)日：1989-07-18

申请号：US137222

申请日：1987-12-23

申请人： Takashi Shoji ,  Takenori Tomita ,  Hideo Watanabe

发明人： Takashi Shoji ,  Takenori Tomita ,  Hideo Watanabe

IPC分类号： H01S5/06 ,  H01S5/068 ,  H01S5/0683 ,  H04N1/40 ,  H04N1/405

CPC分类号： H04N1/40037 ,  H01S5/06832 ,  H04N1/4005 ,  H01S5/0617 ,  H01S5/06812

摘要： A laser beam recording method and apparatus are constituted for recording an image by obtaining a laser beam whose optical intensity is modulated by controlling a drive current for a semiconductor laser on the basis of a light emission level instructing signal corresponding to an image signal, and scanning the laser beam on a photosensitive material. The optical output is stabilized by detecting the optical intensity of the laser beam and feeding back a feedback signal corresponding to the detected optical intensity to the light emission level instructing signal. A filter circuit formed so that the gain gradually increases from near to a cutoff frequency of a circuit for the optical output stabilization toward a higher frequency side is disposed in a stage prior to the circuit for the optical output stabilization. Or, a bias current of a value smaller than the value of the drive current that produces the laser beam of the minimum optical intensity capable of exciting the photosensitive material is always fed to the semiconductor laser.

摘要翻译： 一种激光束记录方法和装置，用于通过基于与图像信号对应的发光电平指示信号，通过控制半导体激光器的驱动电流来获得其强度被调制的激光束来记录图像，并且扫描 激光束在感光材料上。 通过检测激光束的光强度并将对应于检测到的光强度的反馈信号反馈给光发射电平指令信号来稳定光输出。 滤波器电路被形成为使得增益从用于光输出稳定化到较高频率侧的电路的接近到截止频率的逐渐增加设置在用于光输出稳定的电路之前的阶段。 或者，总是向半导体激光器馈送小于产生能够激发感光材料的最小光强度的激光束的驱动电流的值的偏置电流。

公开(公告)号：US4831461A

公开(公告)日：1989-05-16

申请号：US187205

申请日：1988-04-27

申请人： Yasunori Ohta ,  Shumpeita Torii ,  Tsutomu Kimura ,  Takenori Tomita ,  Toru Itakura ,  Takashi Shoji ,  Masaaki Konno ,  Hisao Seto

发明人： Yasunori Ohta ,  Shumpeita Torii ,  Tsutomu Kimura ,  Takenori Tomita ,  Toru Itakura ,  Takashi Shoji ,  Masaaki Konno ,  Hisao Seto

IPC分类号： B65H5/06 ,  H04N1/12

CPC分类号： B65H5/062 ,  H04N1/121

摘要： A sheet feed mechanism in a light scanning apparatus includes two pairs of rollers for gripping and feeding a sheet-like medium such as a stimulable phosphor sheet or a photographic film in a subscanning direction. The two pairs of rollers are spaced a distance smaller than the length of the sheet-like medium in the subscanning direction. While the sheet-like medium is being fed by the sheet feed mechanism in the subscanning direction, the sheet-like medium is scanned by a light beam deflected in a main scanning direction substantially normal to the subscanning direction, for thereby two-dimensionally scanning the sheet-like medium.

摘要翻译： 光扫描装置中的片材进给机构包括两对辊，用于夹持和馈送诸如可激发的荧光体片或摄影底片的副扫描方向的片状介质。 两对辊间隔的距离小于副扫描方向上的片状介质的长度。 当片状介质由副供纸机构沿副扫描方向供给时，片状介质由大致垂直于副扫描方向的主扫描方向偏转的光束扫描，从而二维扫描 片状介质。