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1. 发明授权

US5936244A Electron microscope and electron microscopy method 失效
标题翻译：电子显微镜和电子显微镜法
公开(公告)号：US5936244A
公开(公告)日：1999-08-10
申请号：US973898
申请日：1997-12-18
申请人： Yusuke Yajima , Yoshio Takahashi , Hiroshi Suzuki , Katsuhiro Kuroda
发明人： Yusuke Yajima , Yoshio Takahashi , Hiroshi Suzuki , Katsuhiro Kuroda
IPC分类号： H01J37/26 , H01J37/244
CPC分类号： H01J37/228 , H01J37/268 , H01J2237/2445 , H01J2237/2455
摘要： An electron microscope for observing a magnetization state of a specimen with high resolution and an electron microscopic method. The electron microscope comprises an electron beam irradiating device including a scanning coil 3 and an objective lens 4 to irradiate an electron beam 2 emitted from an electron source 1 on a desired part of a specimen 51, and a circularly polarized light detector including a quarter wave plate 8, a polarizer 9 and a photodetector 11 to detect circularly polarized light generated from the electron beam irradiated part of the specimen 51. Since the intensity of the circularly polarized light generated from the specimen irradiated with the electron beam depends on the direction of magnetization in the electron beam irradiated part and the detecting direction, the distribution of magnetization can be measured by observing a scanning image in the form of a luminance signal indicative of the intensity of the circularly polarized light while scanning the electron beam irradiated part on the surface of the specimen.
摘要翻译： PCT No.PCT / JP95 / 01273 Sec。 371 1997年12月18日第 102（e）日期1997年12月18日PCT提交1995年6月26日PCT公布。出版物WO97 / 01862 日期1997年1月16日用电子显微镜观察高分辨率的试样的磁化状态的电子显微镜。电子显微镜包括电子束照射装置，其包括扫描线圈3和物镜4，以将从电子源1发射的电子束2照射在样本51的期望部分上，以及包括四分之一波的圆偏振光检测器板8，偏振器9和光电检测器11，用于检测从样本51的电子束照射部分产生的圆偏振光。由于用电子束照射的样本产生的圆偏振光的强度取决于磁化方向在电子束照射部分和检测方向上，可以通过观察表示圆偏振光的强度的亮度信号的形式的扫描图像，同时扫描表面上的电子束照射部分来测量磁化分布标本。

2. 发明授权

US5666053A Charged particle beam apparatus for measuring magnetic field 失效
标题翻译：用于测量磁场的带电粒子束装置
公开(公告)号：US5666053A
公开(公告)日：1997-09-09
申请号：US391951
申请日：1995-02-21
申请人： Hiroshi Suzuki , Hiroyuki Shinada , Katsuhiro Kuroda , Yusuke Yajima , Yoshio Takahashi , Hideo Saito , Masato Nakajima
发明人： Hiroshi Suzuki , Hiroyuki Shinada , Katsuhiro Kuroda , Yusuke Yajima , Yoshio Takahashi , Hideo Saito , Masato Nakajima
IPC分类号： G01R33/028 , G01R33/02 , G01R33/10 , G21K5/04 , H01J37/26 , H01J37/28 , G01R33/00 , G06G7/48 , G21K1/00
CPC分类号： G01R33/0213 , H01J37/28 , H01J2237/221 , H01J2237/24564
摘要： A charged particle beam is transmitted through a specimen for producing an irregular pattern as a first image. Further, a magnetic field to be measured is arranged in space where a charged particle beam is passed between the specimen and an image plane thereby to produce a second image having an irregular pattern as in the foregoing case. The first image and the second image are processed to produce the deflection angle of the charged particle beam due to the magnetic field. This deflection angle is extracted from the entire positions of a cross section of the space where measurement is desired, thereby constructing projection data of a magnetic field by a charged particle beam. Furthermore, the magnetic field to be measured is rotated and the above-mentioned processing is performed from each direction to construct projection data. The projection data thus obtained and the computer tomography technique are used to determine a magnetic field at each point in space.
摘要翻译：带电粒子束通过用于产生不规则图案的样本作为第一图像传输。另外，在上述情况下，在被检测体和像面之间通过带电粒子束的空间中，配置有要测量的磁场，从而产生具有不规则图案的第二图像。处理第一图像和第二图像以产生由于磁场引起的带电粒子束的偏转角。从需要测量的空间的横截面的整个位置提取该偏转角，由此通过带电粒子束构成磁场的投影数据。此外，要测量的磁场被旋转，并且从每个方向执行上述处理以构造投影数据。由此获得的投影数据和计算机断层摄影技术用于确定空间中的每个点处的磁场。

3. 发明授权

US5572122A Apparatus including a specimen tilt mechanism for measuring electromagnetic field distribution in the specimen using a focused electron beam 失效
标题翻译：包括用于使用聚焦电子束测量样本中的电磁场分布的样本倾斜机构的装置
公开(公告)号：US5572122A
公开(公告)日：1996-11-05
申请号：US141077
申请日：1993-10-26
申请人： Yusuke Yajima , Yoshio Takahashi , Masakazu Ichikawa , Shigeyuki Hosoki
发明人： Yusuke Yajima , Yoshio Takahashi , Masakazu Ichikawa , Shigeyuki Hosoki
IPC分类号： G01N23/04 , G01R31/305 , G01R33/028 , G01R33/12 , G01R33/02 , G01R33/025
CPC分类号： G01R31/305
摘要： An apparatus for measuring an electromagnetic field distribution using a focused electron beam can measure the electromagnetic field distribution in a specimen with high resolution and high reliability. A focused electron beam radiation system irradiates a specimen with a focused electron beam. A specimen tilt mechanism tilts a specimen by 180.degree. about a tilt axis that is perpendicular to the optical axis of the focused electron beam. An electron beam position detector measures the direction and quantity of the deflection given to the focused electron beam when it is transmitted through the specimen. Further, a processing system calculates the direction and the intensity of an electric field, and the direction and the intensity of a magnetic field separately at a point on the specimen through which the focused electron beam is transmitted, from the data on the direction and the quantity of the deflection of the focused electron beam measured by the electron beam position detector before and after the turnover of the specimen by the specimen tilt mechanism. Thus, an electric field and a magnetic field in a specimen can be separately observed independently of each other.
摘要翻译：使用聚焦电子束测量电磁场分布的装置可以以高分辨率和高可靠性测量样品中的电磁场分布。聚焦电子束辐射系统用聚焦电子束照射样品。样品倾斜机构围绕垂直于聚焦电子束的光轴的倾斜轴将样品倾斜180度。电子束位置检测器测量当聚焦电子束透过样品时给予聚焦电子束的偏转的方向和数量。此外，处理系统从方向和方向上的数据分别计算电场的方向和强度，以及分别在聚焦电子束透过的样本上的点上的磁场的方向和强度电子束位置检测器在样品倾倒机构转换之前和之后测量的聚焦电子束的偏转量。因此，可以彼此独立地分别观察试样中的电场和磁场。

4. 发明授权

US5436449A Transmission electron microscope and method of observing magnetic phenomena using its apparatus 失效
标题翻译：透射电子显微镜及其装置观察磁现象的方法
公开(公告)号：US5436449A
公开(公告)日：1995-07-25
申请号：US131741
申请日：1993-10-05
申请人： Yoshio Takahashi , Yusuke Yajima
发明人： Yoshio Takahashi , Yusuke Yajima
IPC分类号： H01J37/20 , G01R33/02 , H01J37/26 , H01J37/295
CPC分类号： H01J37/268 , G01R33/0213 , H01J2237/24495 , H01J2237/24564 , H01J2237/2802
摘要： When observing a magnetization image on a magnetic thin film by means of a scanning transmission electron microscope, the effect of a stray magnetic field is made smaller than that of a magnetization in order to produce a clear magnetic structure of the magnetization image. To relatively reduce the effect of the stray magnetic field in comparison to that of the magnetization, the scanning transmission electron microscope is equipped with a specimen-holder driving means which can rotate the surface of a specimen 5 by more than 90 degrees with an axis parallel to the optical path of an electron beam 1 taken as a center and incline the surface of the specimen 5 around a center axis 22 perpendicular to an axis 24 rotated earlier over the surface of the specimen 5 with respect to a magnetic-recording track direction and also perpendicular to the axis parallel to the optical path of the electron beam 1. In the actual observation, however, a limit is put on the angle of rotation by which the surface of the specimen 5 is rotated with respect to the recording track direction.
摘要翻译：当通过扫描透射电子显微镜观察磁性薄膜上的磁化图像时，使杂散磁场的作用小于磁化的影响，以产生磁化图像的透明磁结构。为了相对地减小杂散磁场与磁化磁场的影响，扫描透射电子显微镜配备有试样保持器驱动装置，其能够使试样5的表面以轴线平行旋转超过90度以电子束1的光路作为中心，并且使试样5的表面围绕垂直于样品5的表面上相对于磁记录磁道方向转动的轴线24的中心轴线22倾斜，也垂直于与电子束1的光路平行的轴。然而，在实际观察中，限制被检体5的表面相对于记录轨道方向旋转的旋转角度。

5. 发明授权

US08428457B2 Optical passive network system and its operation method 失效
标题翻译：光无源网络系统及其运行方式
公开(公告)号：US08428457B2
公开(公告)日：2013-04-23
申请号：US12767750
申请日：2010-04-26
申请人： Masahiko Mizutani , Yusuke Yajima , Akihiko Tsuchiya
发明人： Masahiko Mizutani , Yusuke Yajima , Akihiko Tsuchiya
IPC分类号： H04J14/00 , H04B10/06 , H04B10/20
CPC分类号： H04Q11/0067 , H04B10/272 , H04J3/0682 , H04J3/1694 , H04J14/0247 , H04J14/0252 , H04Q2011/0079 , H04Q2011/009
摘要： In the configuration of an optical communication system interconnecting a parent station and a plurality of child stations via an optical fiber network equipped with an optical splitter, RE is provided having a measuring unit for measuring a transmission distance or time to a child station, a determining unit for determining a timing when a child station transmits a signal, in accordance with a transmission bandwidth request from the child station, and a signal processing unit for processing a signal received from a child station and transmitting the processed signal to the parent station. When a burst signal is received from each child station at the determined timing, a portion of the header of the burst signal is deleted, and a dummy signal is inserted into the deleted area and a gap area between received burst signals to convert the burst signals into a series of signals to be sent to the parent station.
摘要翻译：在通过配备有分光器的光纤网络将母站和多个子站互连的光通信系统的配置中，提供具有用于测量到子站的传输距离或时间的测量单元的确定单元，用于根据来自子站的传输带宽请求确定子站发送信号的定时;以及信号处理单元，用于处理从子站接收的信号，并将处理的信号发送到母站。当在所确定的定时从每个子站接收到突发信号时，突发信号的头部的一部分被删除，并且将虚拟信号插入到被删除的区域中，以及接收的突发信号之间的间隙区域以转换突发信号成为一系列要发送给母站的信号。

6. 发明授权

US07936992B2 Apparatus of adjusting optical signal transmission timing 有权
标题翻译：调整光信号传输定时的装置
公开(公告)号：US07936992B2
公开(公告)日：2011-05-03
申请号：US12434959
申请日：2009-05-04
申请人： Tohru Kazawa , Masaki Ohira , Yusuke Yajima , Akihiko Tsuchiya , Yoshinobu Morita
发明人： Tohru Kazawa , Masaki Ohira , Yusuke Yajima , Akihiko Tsuchiya , Yoshinobu Morita
IPC分类号： H04J14/00
CPC分类号： H04B10/272 , H04J3/0682 , H04J3/1694
摘要： In a light reception element such as an APD (Avalanche Photo Diode) used for receiving a high-speed and weak optical signal, it is possible to prevent the phenomenon of distortion of a signal inputted after a large-level light is received. A PON (Passive Optical Network) system includes an OLT (Optical Line Terminal) which can impartially and effectively transmit light reception data to each ONU (Optical Network Unit). According to a light reception amplitude received by each ONU, an inter-frame gap of an appropriate length is assigned for each ONU. The OLT includes a unit for measuring and accumulating the reception light amplitude and data on the inter-frame gap of an appropriate length decided in advance according to the characteristic of the light reception device and generates a grant value for assuring an inter-frame gap of an appropriate length by using the both information.
摘要翻译：在用于接收高速和弱光信号的APD（雪崩光电二极管）等光接收元件中，可以防止在接收到大电平光之后输入的信号的失真现象。 PON（Passive Optical Network，无源光网络）系统包括能够向每个ONU（Optical Network Unit，光网络单元）公正地有效地发送光接收数据的OLT（Optical Line Terminal）。根据每个ONU接收的光接收幅度，为每个ONU分配适当长度的帧间间隔。 OLT包括用于根据光接收装置的特性预先确定的适当长度的帧间隙上的接收光幅度和数据的测量和累加单元，并生成用于确保帧间间隔的帧间间隔的准许值通过使用这两个信息适当的长度。

7. 发明申请

US20100272436A1 OPTICAL PASSIVE NETWORK SYSTEM AND ITS OPERATION METHOD 失效
标题翻译：光无源网络系统及其操作方法
公开(公告)号：US20100272436A1
公开(公告)日：2010-10-28
申请号：US12767750
申请日：2010-04-26
申请人： Masahiko Mizutani , Yusuke Yajima , Akihiko Tsuchiya
发明人： Masahiko Mizutani , Yusuke Yajima , Akihiko Tsuchiya
IPC分类号： H04B17/02
CPC分类号： H04Q11/0067 , H04B10/272 , H04J3/0682 , H04J3/1694 , H04J14/0247 , H04J14/0252 , H04Q2011/0079 , H04Q2011/009
摘要： In the configuration of an optical communication system interconnecting a parent station and a plurality of child stations via an optical fiber network equipped with an optical splitter, RE is provided having a measuring unit for measuring a transmission distance or time to a child station, a determining unit for determining a timing when a child station transmits a signal, in accordance with a transmission bandwidth request from the child station, and a signal processing unit for processing a signal received from a child station and transmitting the processed signal to the parent station. When a burst signal is received from each child station at the determined timing, a portion of the header of the burst signal is deleted, and a dummy signal is inserted into the deleted area and a gap area between received burst signals to convert the burst signals into a series of signals to be sent to the parent station.
摘要翻译：在通过配备有分光器的光纤网络将母站和多个子站互连的光通信系统的配置中，提供具有用于测量到子站的传输距离或时间的测量单元的确定单元，用于根据来自子站的传输带宽请求确定子站发送信号的定时;以及信号处理单元，用于处理从子站接收的信号，并将处理的信号发送到母站。当在所确定的定时从每个子站接收到突发信号时，突发信号的头部的一部分被删除，并且将虚拟信号插入到被删除的区域中，以及接收的突发信号之间的间隙区域以转换突发信号成为一系列要发送给母站的信号。

8. 发明申请

US20100067901A1 Passive optical network system and fault determination method 有权
标题翻译：无源光网络系统和故障确定方法
公开(公告)号：US20100067901A1
公开(公告)日：2010-03-18
申请号：US12379634
申请日：2009-02-26
申请人： Masahiko Mizutani , Yusuke Yajima , Yoshihiro Ashi
发明人： Masahiko Mizutani , Yusuke Yajima , Yoshihiro Ashi
IPC分类号： H04B10/08 , H04J14/02
CPC分类号： H04B10/03 , H04B10/07955 , H04B10/272 , H04L25/0298 , H04Q11/0067 , H04Q2011/0081 , H04Q2011/0083
摘要： In a passive optical network system, a parent station includes a reception circuit that receives an optical signal from each of child stations using a threshold used to identify if the optical signal is 0 or 1; a bandwidth setting unit that determines a time at which each child station sends an optical signal; a storage unit that stores thresholds and intensities of optical signals received from the child stations; and a control unit that sets a threshold, stored corresponding to a sending time, in,the reception circuit to control a reception of an optical signal. The control unit has a function that compares an intensity of a signal received from each child station at an optical signal reception time with information stored in the storage unit to detect and determine a fault in the child station or in the optical fiber connected to the child station.
摘要翻译：在无源光网络系统中，母站包括接收电路，其使用用于识别光信号是0或1的阈值从每个子站接收光信号; 带宽设定单元，确定每个子站发送光信号的时间; 存储单元，其存储从所述子站接收的光信号的阈值和强度; 以及控制单元，其将接收电路中相应于发送时间存储的阈值设置为控制光信号的接收。控制单元具有将在光信号接收时刻从每个子站接收的信号的强度与存储在存储单元中的信息进行比较的功能，以检测和确定子站中或连接到该小孩的光纤中的故障站。

9. 发明申请

US20090317082A1 Passive Optical Network System, Optical Network Unit, and Optical Line Terminal 审中-公开
标题翻译：无源光网络系统，光网络单元和光线路终端
公开(公告)号：US20090317082A1
公开(公告)日：2009-12-24
申请号：US12486104
申请日：2009-06-17
申请人： Mitsunobu KIMURA , Yusuke Yajima , Masahiko Mizutani
发明人： Mitsunobu KIMURA , Yusuke Yajima , Masahiko Mizutani
IPC分类号： H04J14/00
CPC分类号： H04J3/1694 , H04N7/17309 , H04Q11/0067 , H04Q2011/0064
摘要： An optical line terminal (OLT), an optical network unit (ONT) and a passive optical network (PON) system are provided. A user of the ONU or a terminal connected with the ONU can accurately recognize the amount of a bandwidth allocated to the ONU without estimating the communication bandwidth. The OLT notifies each ONU of the amount of the bandwidth allocated to the ONU in response to a request transmitted from the ONU to the OLT. Each ONU receives bandwidth information from the OLT and displays thereon the bandwidth information or notifies the terminal connected with the ONU of the bandwidth information.
摘要翻译：提供了一种光线路终端（OLT），光网络单元（ONT）和无源光网络（PON）系统。 ONU或与ONU连接的终端的用户可以在不估计通信带宽的情况下，准确地识别分配给ONU的带宽量。 OLT根据从ONU向OLT发送的请求，通知每个ONU分配给ONU的带宽量。每个ONU从OLT接收带宽信息，并在其上显示带宽信息，或通知与ONU连接的终端带宽信息。

10. 发明申请

US20090169209A1 Network system, optical line terminating apparatus, and optical network apparatus 有权
标题翻译：网络系统，光线路终端装置和光网络装置
公开(公告)号：US20090169209A1
公开(公告)日：2009-07-02
申请号：US12073949
申请日：2008-03-12
申请人： Toshiki Sugawara , Hiroki Ikeda , Yusuke Yajima , Tohru Kazawa
发明人： Toshiki Sugawara , Hiroki Ikeda , Yusuke Yajima , Tohru Kazawa
IPC分类号： H04J14/00
CPC分类号： H04B10/27 , H04B10/272 , H04J3/0682
摘要： A general object of the present invention is to provide an optical communication system in which an optical transmission power of an optical communication apparatus is controlled to be a required minimum power that apparatuses of all subscribers in the optical communication system meet a prescribed error rate. An optical line terminating apparatus (OLT) transmits data to multiple optical network apparatuses (ONUs) at an optical intensity calculated based on information acquired from the multiple ONUs, which is related to optical intensities of signals that the multiple ONUs receive from the OLT, the optical intensity being calculated so that a minimum optical intensity of the optical intensities of the signals is greater than a predetermined value.
摘要翻译：本发明的一般目的是提供一种光通信系统，其中光通信装置的光传输功率被控制为光通信系统中所有用户的设备满足规定的错误率所需的最小功率。光线路终端装置（OLT）以基于从多个ONU获取的信息计算出的光强度向多个光网络装置（ONU）发送数据，其与多个ONU从OLT接收的信号的光强度相关，计算光强度，使得信号的光强度的最小光强度大于预定值。

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