公开(公告)号：US20110130688A1

公开(公告)日：2011-06-02

申请号：US13055405

申请日：2009-07-17

申请人： Kozo Nakamura ,  Isao Onishi ,  Juntaro Matsuyama ,  Kenji Tobita ,  Ryoichi Sakai ,  Koji Ogawa ,  Koichi Miyasaka ,  Eiichi Minagawa

发明人： Kozo Nakamura ,  Isao Onishi ,  Juntaro Matsuyama ,  Kenji Tobita ,  Ryoichi Sakai ,  Koji Ogawa ,  Koichi Miyasaka ,  Eiichi Minagawa

IPC分类号： A61N7/00

CPC分类号： A61B8/0875 ,  A61B5/0053 ,  A61B5/4504 ,  A61B5/6828 ,  A61B8/40 ,  A61B8/4218

摘要： Provided is a bone inspecting system for placing the lower legs (L) of an examinee (P) on a proximal support block (26) and a distal support block (28) mounted on a turning base (24). The proximal support block supports the heads of fibula, and the distal support block supports the lateral malleolus or medial malleolus of a tibial distal end of the examinee. The turning base is supported turnably on a turning axis positioned near the knees of the examinee, with respect to a main base (22), and is moved up and down by an elevating mechanism (30) disposed near the ankles. The turning base (24) is turned by the elevating mechanism while bearing the lower legs thereon, thereby positioning the lower legs horizontally.

摘要翻译： 提供了一种骨检查系统，用于将受检者（P）的下腿（L）放置在安装在转动底座（24）上的近侧支撑块（26）和远侧支撑块（28）上。 近端支撑块支撑腓骨头，并且远端支撑块支撑受检者的胫骨远端的外侧踝或内侧踝。 转动基座相对于主基座（22）可转动地支撑在位于受检者的膝盖附近的转动轴上，并且通过设置在脚踝附近的升降机构（30）上下移动。 通过升降机构转动转动基座（24），同时在其上支撑下腿，从而水平地定位下腿。

公开(公告)号：US07806823B2

公开(公告)日：2010-10-05

申请号：US10951322

申请日：2004-09-27

申请人： Ryoichi Sakai ,  Akimitsu Harada ,  Kozo Nakamura ,  Isao Ohnishi ,  Jyuntaro Matsuyama ,  Toshiro Uehara

发明人： Ryoichi Sakai ,  Akimitsu Harada ,  Kozo Nakamura ,  Isao Ohnishi ,  Jyuntaro Matsuyama ,  Toshiro Uehara

IPC分类号： A61F5/00

CPC分类号： A61B8/0875 ,  A61B5/0048 ,  A61B5/4504 ,  A61B8/485

摘要： An echo tracking processor unit detects a bone surface section based on an echo signal and tracks a position of the bone surface section. An interpolation line generator unit generates an interpolation line connecting tracking points which represent the tracked bone surface section. A translational displacement corrector unit removes a translational displacement component between an interpolation line corresponding to a time phase of a no-load state stored in a memory and an interpolation line corresponding to a time phase in a loaded state output from the interpolation line generator unit. A strain calculator unit calculates an amount of strain of bone for each time phase and outputs to a characteristic curve generator unit. The characteristic curve generator unit generates a characteristic curve related to the strain of bone based on a load value output from a load measurement device and the amount of strain of bone output from the strain calculator unit.

摘要翻译： 回波跟踪处理器单元基于回波信号检测骨表面部分并跟踪骨表面部分的位置。 内插线发生器单元产生连接表示跟踪骨表面部分的跟踪点的内插线。 平移位移校正单元去除与存储在存储器中的空载状态的时间相位相对应的内插线和与从内插线发生器单元输出的加载状态中的时间相对应的内插线之间的平移位移分量。 应变计算器单元计算每个时间相位的骨骼的应变量，并输出到特征曲线发生器单元。 特征曲线发生器单元基于从负载测量装置输出的负载值和从应变计算器单元输出的骨的应变量，生成与骨骼的应变有关的特性曲线。

公开(公告)号：US20080086055A1

公开(公告)日：2008-04-10

申请号：US11869238

申请日：2007-10-09

申请人： Ryoichi Sakai ,  Akimitsu Harada

发明人： Ryoichi Sakai ,  Akimitsu Harada

IPC分类号： A61B8/00

CPC分类号： A61B8/0875 ,  A61B8/485

摘要： An angle calculating unit calculates a bending angle of a bone based on a plurality of surface points. A characteristic data calculating unit determines an indication value which reflects a load applied on the bone, a bone length of the bone, and a position of a fractured part. The characteristic data calculating unit calculates, as characteristic data reflecting a mechanical characteristic of the bone, a proportionality constant indicating a ratio between the indication value and the bending angle of the bone.

摘要翻译： 角度计算单元基于多个表面点计算骨的弯曲角度。 特征数据计算单元确定反映施加在骨骼上的负荷，骨骼的骨长度和骨折部位的位置的指示值。 特征数据计算单元计算反映骨骼的机械特性的特征数据，表示骨骼的指示值和弯曲角度之间的比例的比例常数。

公开(公告)号：US5424667A

公开(公告)日：1995-06-13

申请号：US962974

申请日：1992-10-15

申请人： Ryoichi Sakai ,  Iwao Akiyama ,  Yasumasa Fujisawa

发明人： Ryoichi Sakai ,  Iwao Akiyama ,  Yasumasa Fujisawa

IPC分类号： H03B28/00 ,  G06F1/03 ,  H03L7/18 ,  H03B19/00

CPC分类号： G06F1/0328 ,  G06F2101/04

摘要： A DDS type variable frequency signal generator generates a jitter free and stable output signal regardless of the address interval. If the total number of addressable memory locations of a memory storing digital data is divisible without remainder by an initial address interval, then the memory is read every initial address interval with a clock signal of a predetermined frequency. If the total number of addressable memory locations is not divisible without remainder by the initial address interval, then the address interval is modified to a value that is divisible without remainder into the total number of addressable memory locations and the clock frequency is modified in accordance with this modification of the address interval. The memory is read every modified address interval with the modified clock signal.

摘要翻译： 无论地址间隔如何，DDS型可变频率信号发生器产生无抖动和稳定的输出信号。 如果存储数字数据的存储器的可寻址存储器位置的总数可被除以初始地址间隔的余数，则以每个初始地址间隔读取具有预定频率的时钟信号的存储器。 如果可寻址存储器位置的总数不能被除以初始地址间隔的余数，则地址间隔被修改为可以被除去的值，而没有余数到可寻址存储器位置的总数中，并且时钟频率根据 这个地址间隔的修改。 每个修改的地址间隔读取存储器与修改的时钟信号。

公开(公告)号：US4772859A

公开(公告)日：1988-09-20

申请号：US58011

申请日：1987-06-04

申请人： Ryoichi Sakai

发明人： Ryoichi Sakai

IPC分类号： H03F1/30 ,  H03F3/08 ,  H03F3/34 ,  H04B10/158 ,  H03F3/04

CPC分类号： H04B10/693 ,  H03F1/302 ,  H03F3/08

摘要： A temperature compensated amplifier network for a fiber optical receiver includes a photodiode having an optical input and a current output, and a cascadable transimpedance amplifier having N stages, each stage having a common base-emitter voltage. An emitter-follower transistor is coupled to the last stage of the transimpedance amplifier network and has a base-emitter voltage of the same magnitude but of opposite polarity from the base-emitter voltage of each of the amplifier stages. Any DC drift of the amplifier stages is therefore offset by a compensating drift in the opposite direction by the output emitter-follower.

摘要翻译： 用于光纤光接收器的温度补偿放大器网络包括具有光输入和电流输出的光电二极管，以及具有N级的级联跨阻抗放大器，每级具有公共基极 - 发射极电压。 射极跟随器晶体管耦合到跨阻抗放大器网络的最后级，并且具有与每个放大器级的基极 - 发射极电压相同的量级但是具有相反极性的基极 - 发射极电压。 放大器级的任何直流漂移因此被输出发射极跟随器的相反方向的补偿漂移所抵消。

公开(公告)号：US4727318A

公开(公告)日：1988-02-23

申请号：US780957

申请日：1985-09-27

申请人： Ryoichi Sakai ,  Hisashi Tamamura

发明人： Ryoichi Sakai ,  Hisashi Tamamura

IPC分类号： G01R31/26 ,  G01R31/22

CPC分类号： G01R31/2603 ,  G01R31/2607

摘要： An electronic device measurement apparatus measures a characteristic of an electronic device under test (DUT) by applying a sine-wave voltage to the DUT, detecting the voltage across the DUT as well as the current flowing through the DUT and displaying a characteristic curve in accordance with the detected voltage and current. The sine-wave voltage is generated in phase with an AC line voltage but the amplitude thereof is independent of the line voltage, and consequently the circuits in the measurement apparatus are not affected by variations in phase and amplitude in the line. Moreover, the generated sine-wave voltage is symmetrical, whereby display distortion is substantially eliminated. A voltage limiter and a current limiter are provided for limiting the voltage and current to be applied to the DUT to values determined by a display window, for protecting a current detecting resistor and a voltage divider connected to the DUT.

摘要翻译： 电子设备测量装置通过向DUT施加正弦波电压来测量被测电子设备（DUT）的特性，检测DUT上的电压以及流过DUT的电流，并按照 检测电压和电流。 正弦波电压与交流线路电压同相产生，但其幅度与线路电压无关，因此测量装置中的电路不受线路中相位和振幅的变化的影响。 此外，产生的正弦波电压是对称的，由此基本上消除了显示失真。 提供限压器和限流器，用于将要施加到DUT的电压和电流限制到由显示窗确定的值，以保护电流检测电阻器和连接到DUT的分压器。