-
公开(公告)号：US6147571A
公开(公告)日：2000-11-14
申请号：US147562
申请日：1999-01-20
申请人： Shoichi Kitazawa , Toru Yamada , Toshio Ishizaki , Koichi Ogawa , Makoto Fujikawa , Tadanori Fujisawa , Kaoru Ishida , Yoshitaka Nagatomi
发明人： Shoichi Kitazawa , Toru Yamada , Toshio Ishizaki , Koichi Ogawa , Makoto Fujikawa , Tadanori Fujisawa , Kaoru Ishida , Yoshitaka Nagatomi
CPC分类号： H01P1/20345 , H01P1/2135 , H03H7/0123 , H03H7/175 , H03H2001/0085 , H03H2250/00 , H03H7/463
摘要： A dual-band multilayer bandpass filter having a first filter unit (18) for filtering a first signal having a first frequency and a second filter unit (19) for filtering a second signal having a second frequency. First and second filter units are arranged in stacked ceramic layers. A first blocking element (20a, 20b; 25a, 25b; 25a', 25b'; 46a, 46b) is coupled to the first filter unit (18) for blocking the second signal from being applied to the first filter unit (18). A second blocking element (21a, 21b; 26a, 26b; 25c, 25d; 27a, 27b) is coupled to the second filter unit (19) for blocking the first signal from being applied to the second filter unit (19).
摘要翻译： PCT No.PCT / JP97 / 02660 Sec。 371日期1999年1月20日 102（e）1999年1月20日PCT PCT 1997年7月31日PCT公布。 第WO98 / 05120号公报 日期1998年2月5日一种具有用于对具有第一频率的第一信号进行滤波的第一滤波器单元（18）和用于滤波具有第二频率的第二信号的第二滤波器单元（19）的双频带多层带通滤波器。 第一和第二滤波器单元布置在堆叠的陶瓷层中。 第一阻挡元件（20a，20b; 25a，25b; 25a'，25b'; 46a，46b）耦合到第一滤波器单元（18），用于阻止第二信号施加到第一滤波器单元（18）。 第二阻挡元件（21a，21b; 26a，26b; 25c，25d; 27a，27b）被耦合到第二滤波器单元（19），用于阻止第一信号施加到第二滤波器单元（19）。
-
2.发明授权
公开(公告)号：US6166613A
公开(公告)日：2000-12-26
申请号：US896908
申请日：1997-07-18
CPC分类号： H01P7/088
摘要： A voltage-controlled resonator is fabricated by laminating, one on top of the other, a first dielectric which has a resonant circuit and on the upper surface of which a variable-capacitance element is mounted, and a second dielectric which has a through-hole formed in a position thereof corresponding to the position of the variable-capacitance element and which has a dual function of shielding and resonant frequency tuning. With this structure, the height of the resonator can be further reduced compared with the prior art while retaining the shielding effect, and moreover, further precise resonant frequency tuning can be accomplished as compared with the prior art.
摘要翻译： 一个压控谐振器通过层叠一个第一介电体制成，第一电介质具有谐振电路，其上表面上安装有可变电容元件，第二电介质具有通孔 形成在与可变电容元件的位置对应的位置，并具有屏蔽和共振频率调谐的双重功能。 利用这种结构，与现有技术相比，谐振器的高度可以进一步降低，同时保持屏蔽效果，此外，与现有技术相比，可以实现更精确的谐振频率调谐。
-
公开(公告)号：US06340953B1
公开(公告)日：2002-01-22
申请号：US09527232
申请日：2000-03-16
IPC分类号： H01Q1302
摘要： An antenna device comprising a plurality of directional antennas which are aligned on the same axis in one direction and which are also arranged in a manner that the main radiation directions of the plurality of directional antennas deviate from each other in a direction orthogonal to the direction. Hence, a drop in directivity due to the array factor can be prevented and radiation characteristics in the plane orthogonal to the direction is expanded.
摘要翻译： 一种天线装置，包括在一个方向上在同一轴上对准的多个定向天线，并且还以多个定向天线的主辐射方向在与该方向正交的方向上彼此偏离的方式布置。 因此，可以防止由于阵列因子引起的方向性的下降，并且扩大与方向正交的平面中的辐射特性。
-
公开(公告)号：US09084568B2
公开(公告)日：2015-07-21
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。
-
公开(公告)号：US20130170530A1
公开(公告)日：2013-07-04
申请号：US13823428
申请日：2011-09-02
申请人： Yoshishige Yoshikawa , Koichi Ogawa
发明人： Yoshishige Yoshikawa , Koichi Ogawa
IPC分类号： H04L1/00
CPC分类号： H04L1/0036 , H04B7/0682 , H04B7/084
摘要： A radio communication device of the present invention comprises a first antenna, a second antenna, a phase varying section which varies a phase of a first RF signal received by or transmitted from the first antenna, and a phase control means which causes the phase varying section to vary a phase amount which is a varied amount of the phase of the first RF signal received by or transmitted from the first antenna. Thus, it is possible to prevent that a size of a device configuration increases and avoid that a reception electric field level is lowered in a localized area.
摘要翻译： 本发明的无线电通信装置包括第一天线，第二天线，改变由第一天线接收或发送的第一RF信号的相位的相变部分，以及相位控制装置，其使相位变化部分 改变作为由第一天线接收或从第一天线发送的第一RF信号的相位的变化量的相位量。 因此，可以防止设备配置的大小增加，并避免局部区域中的接收电场电平降低。
-
公开(公告)号：US20070182634A1
公开(公告)日：2007-08-09
申请号：US10577685
申请日：2004-10-28
IPC分类号： H01Q1/38
CPC分类号： H01Q3/242 , H01Q3/28 , H01Q3/36 , H01Q13/06 , H01Q21/205
摘要： Four antenna units arranged adjacent to each other are respectively connected to switches, and are connected to load impedance elements via the switches, or connected to an output terminal and a comparator via a switch. Another ends of the load impedance elements are grounded. The comparator judges which antenna unit receives a radio signal having the maximum signal level among the antenna units. A controller controls the switches and the switch so that the antenna unit that receives the radio communication signal having the maximum signal level is connected to the output terminal and the other antenna units are connected to the load impedance elements.
摘要翻译： 彼此相邻布置的四个天线单元分别连接到开关，并且经由开关连接到负载阻抗元件，或者经由开关连接到输出端子和比较器。 负载阻抗元件的另一端接地。 比较器判断哪个天线单元在天线单元中接收到具有最大信号电平的无线电信号。 控制器控制开关和开关，使得接收具有最大信号电平的无线电通信信号的天线单元连接到输出端，而其它天线单元连接到负载阻抗元件。
-
公开(公告)号：US07161555B2
公开(公告)日：2007-01-09
申请号：US10937621
申请日：2004-09-10
申请人： Takeshi Ohno , Koichi Ogawa
发明人： Takeshi Ohno , Koichi Ogawa
CPC分类号： H01Q9/0485 , H01Q21/0075 , H01Q21/061
摘要： A dielectric antenna of the present invention includes a pillar-shaped dielectric section for radiating an electromagnetic wave being fed thereto. The dielectric section includes a depressed portion in an upper portion thereof. The vertical cross section of the depressed portion has such a shape that the height of the dielectric section gradually increases toward the side surface of the dielectric section. For example, the depressed portion is a notch having a V-shaped vertical cross section. Alternatively, the depressed portion includes a flat surface portion.
摘要翻译： 本发明的电介质天线包括：柱状电介质部，用于照射供给的电磁波。 电介质部分包括在其上部的凹陷部分。 凹陷部的垂直截面具有这样的形状：电介质部分的高度朝向电介质部分的侧表面逐渐增加。 例如，凹部是具有V形垂直截面的凹口。 或者，凹部包括平坦表面部分。
-
8.发明授权Dielectric loaded antenna apparatus with inclined radiation surface and array antenna apparatus including the dielectric loaded antenna apparatus 有权具有倾斜辐射面的介质负载天线装置和包括介质负载天线装置的阵列天线装置公开(公告)号：US07088290B2
公开(公告)日：2006-08-08
申请号：US10649723
申请日：2003-08-28
申请人： Takeshi Ohno , Koichi Ogawa
发明人： Takeshi Ohno , Koichi Ogawa
CPC分类号： H01Q1/1221 , H01Q1/38 , H01Q3/24 , H01Q9/0485 , H01Q13/06 , H01Q13/10 , H01Q19/06 , H01Q21/064
摘要： A dielectric loaded antenna apparatus has a column-shaped loaded dielectric which is loaded on an end portion of a feeding line of the dielectric loaded antenna apparatus. The loaded dielectric has an inclined radiation surface which is inclined from a surface perpendicular to an axial direction of the loaded dielectric. A cross section of the loaded dielectric perpendicular to the axial direction of the loaded dielectric has a shape of one of a circle, ellipse and polygon. The feeding line is a waveguide which includes a radiation waveguide and a feeding waveguide. The radiation waveguide has an axis parallel to the axial direction of the loaded dielectric and includes an opening for feeding an electromagnetic wave to the loaded dielectric. The feeding waveguide feeds the electromagnetic wave to the radiation waveguide.
摘要翻译： 介质负载天线装置具有装载在介质负载天线装置的馈电线的端部上的列状负载电介质。 负载的电介质具有倾斜的辐射表面，其从垂直于所加载的电介质的轴向方向的表面倾斜。 垂直于负载的电介质的轴向的负载介质的横截面具有圆形，椭圆形和多边形之一的形状。 馈电线是包括辐射波导和馈电波导的波导。 辐射波导具有平行于负载的电介质的轴向的轴线，并且包括用于将电磁波馈送到负载的电介质的开口。 馈电波导将电磁波馈送到辐射波导。
-
9.发明授权Radiation detection device for nuclear medicine diagnosis device and detecting method therefor 有权核医学诊断装置用辐射检测装置及其检测方法公开(公告)号：US07045789B2
公开(公告)日：2006-05-16
申请号：US10381601
申请日：2001-10-01
申请人： Koichi Ogawa , Takuzo Takayama
发明人： Koichi Ogawa , Takuzo Takayama
CPC分类号： G01T1/2985 , A61B6/037 , A61B6/4258
摘要： In case of performing so-called “PET acquisition”, a nuclear medical diagnosis apparatus according to the present invention does not set only gamma rays which imparted predetermined energy values (for example, energy values of and above a Compton edge), as subjects for coincidental counting acquisition (coincidence acquisition), but it discriminates also further gamma rays which caused a photoelectric effect after having undergone Compton scattering once in a radiation detection unit, so as to set them as subjects for the coincidental counting acquisition. Concretely, if the added value of energy values observed in two detection elements is “near 511 keV”, the existence of the further gamma ray is presumed, and the acquisition thereof is possible. Besides, that one of the two detection elements as to which energy near the Compton edge is observed can be specified as the incident position of the gamma ray on the radiation detection unit.
摘要翻译： 在进行所谓的“PET采集”的情况下，根据本发明的核医学诊断装置不能仅设定赋予预定能量值（例如，康普顿边缘以上的能量值）的伽马射线，作为 巧合计数采集（重合获取），但是在放射线检测单元中经历了康普顿散射一次之后，还鉴别出引起光电效应的另外的伽马射线，从而将它们设置为重合计数采集的对象。 具体地说，如果在两个检测元件中观察到的能量值的附加值为“接近511keV”，则推测存在另外的伽马射线，并且其获取是可能的。 此外，观察到康普顿边缘附近的能量的两个检测元件中的一个可以被指定为伽马射线在放射线检测单元上的入射位置。
-
10.发明授权Apparatus for measuring specific absorption rate based on near magnetic field for use in radio apparatus 失效用于在无线电设备中使用的用于测量基于近磁场的比吸收率的装置公开(公告)号：US06919845B2
公开(公告)日：2005-07-19
申请号：US10419813
申请日：2003-04-22
申请人： Akihiro Ozaki , Koichi Ogawa , Yoshio Koyanagi , Yutaka Saito , Shoichi Kajiwara , Yoshitaka Asayama , Atsushi Yamamoto
发明人： Akihiro Ozaki , Koichi Ogawa , Yoshio Koyanagi , Yutaka Saito , Shoichi Kajiwara , Yoshitaka Asayama , Atsushi Yamamoto
CPC分类号： G01R29/0857 , G01R29/0814 , H04B1/3838
摘要： In an apparatus for measuring a specific absorption rate (SAR) for use in a radio apparatus, a first near magnetic field of a radio wave radiated from a reference radio apparatus is measured in free space, and an SAR of the radio wave radiated from the reference radio apparatus by using a predetermined phantom according to a predetermined measurement method. A transformation factor α is calculated by dividing the measured SAR by a square value of the measured first near magnetic field, and a second near magnetic field of a radio wave radiated from a radio apparatus to be measured is measured in free space. Then an SAR of the radio wave radiated from the radio apparatus to be measured is estimated and calculated by multiplying a square value of the measured second near magnetic field by the calculated transformation factor α.
摘要翻译： 在无线电设备中用于测量特定吸收率（SAR）的设备中，在自由空间中测量从参考无线电设备辐射的无线电波的第一近似磁场，并且从所述无线电设备辐射的无线电波的SAR 参考无线电设备，根据预定的测量方法使用预定的体模。 通过将测量的SAR除以测量的第一近似磁场的平方值，并且在自由空间中测量从待测量的无线电设备辐射的无线电波的第二近似磁场来计算变换因子α。 然后通过将测量的第二近似磁场的平方值乘以计算出的变换因子α来估计和计算从待测量的无线电设备辐射的无线电波的SAR。
-
-
-
-
-
-
-
-
-
搜索结果
114 条记录 (耗时 0.049 秒)
