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1. 发明授权

US07151948B2 Scheme for realizing path selection using optimum path selection threshold in radio communication 有权
公开(公告)号：US07151948B2
公开(公告)日：2006-12-19
申请号：US10465612
申请日：2003-06-20
申请人： Hiroyuki Ishii , Takayuki Ishiguro , Sung Uk Moon , Mayu Yamada
发明人： Hiroyuki Ishii , Takayuki Ishiguro , Sung Uk Moon , Mayu Yamada
IPC分类号： H04B7/00
CPC分类号： H04B1/7113 , H04B1/70755 , H04B1/7117 , H04L25/0218
摘要： A receiver of a mobile station or a base station in radio communications is formed by a correlation unit for generating a delay profile for specifying paths by taking correlations by using replica signals for a received pilot signal, and a path selection unit for comparing a power level of each path in the delay profile with a threshold determined according to an index value regarding a communication state, selecting paths for which a comparison result satisfies a prescribed condition as valid paths, and outputting a selected delay profile formed by the valid paths as a channel estimation value.

2. 发明授权

US07720478B2 Control device of mobile communication system 失效
标题翻译：移动通信系统控制装置
公开(公告)号：US07720478B2
公开(公告)日：2010-05-18
申请号：US10395088
申请日：2003-03-25
申请人： Takayuki Ishiguro , Mayu Yamada , Sung Uk Moon , Hiroyuki Ishii , Toshiyuki Futakata , Tomohiro Dohi
发明人： Takayuki Ishiguro , Mayu Yamada , Sung Uk Moon , Hiroyuki Ishii , Toshiyuki Futakata , Tomohiro Dohi
IPC分类号： H04W36/00
CPC分类号： H04W36/32 , H04W36/14 , Y02D70/00 , Y02D70/164
摘要： There is provided a control device enabling switching of communication of a mobile terminal with one system to communication with another system while reducing power consumption and workload of the mobile terminal. The control device is used in a communication system including a first mobile communication system, a second mobile communication system, and a mobile terminal being in communication with the first mobile communication system. The control device comprises a position measuring unit for measuring the position of the mobile terminal, a judgment unit for making a determination whether or not to switch the communication of the mobile terminal from the first mobile communication system to the second mobile communication system according to a position measurement result of the position measuring unit, and a switching unit for performing the above switching operation according to the determination of the judgment unit.
摘要翻译：提供了一种控制装置，其能够使移动终端与一个系统的通信切换，以与另一个系统通信，同时减少移动终端的功耗和工作量。控制装置用于包括与第一移动通信系统通信的第一移动通信系统，第二移动通信系统和移动终端的通信系统中。控制装置包括：位置测量单元，用于测量移动终端的位置;判断单元，用于根据第一移动通信系统确定是否将移动终端的通信从第一移动通信系统切换到第二移动通信系统位置测量单元的位置测量结果，以及根据判断单元的确定执行上述切换操作的切换单元。

3. 发明授权

US07035590B2 Mobile communication terminal, interference cancellation system, interference cancellation method, and base station 失效
标题翻译：移动通信终端，干扰消除系统，干扰消除方法和基站
公开(公告)号：US07035590B2
公开(公告)日：2006-04-25
申请号：US10310837
申请日：2002-12-06
申请人： Takayuki Ishiguro , Toshiyuki Futakata , Makoto Ito , Sung Uk Moon
发明人： Takayuki Ishiguro , Toshiyuki Futakata , Makoto Ito , Sung Uk Moon
IPC分类号： H04B1/10 , H04B15/00
CPC分类号： H04B1/71052
摘要： A mobile phone 1 receives a home cell signal sent from a base station B1 and a foreign cell signal sent from a base station B2 or from a mobile phone 21 in a foreign cell A2. The mobile phone 1 receives spreading codes C2–C4 sent from the base station B1, as home cell codes. The mobile phone 1 detects the interference between the home cell signal and the foreign cell signal. When the interference is detected, the mobile phone 1 receives a spreading code C1 sent from the base station B2 or from the mobile phone 21, as a foreign cell code. The mobile phone 1 cancels an interference signal by joint detection, using the home cell codes and the foreign cell code.
摘要翻译：移动电话1接收从基站B1发送的家庭小区信号和从基站B 2发送的外部小区信号，或者从外部小区A 2中的移动电话21接收到的外部小区信号。移动电话1接收从基站B1发送的扩展码C 2〜C 4作为本地信元码。移动电话1检测家庭信元信号和外部信元信号之间的干扰。当检测到干扰时，移动电话1接收从基站B 2或从移动电话21发送的扩展码C 1作为外部信元码。移动电话1通过联合检测来消除干扰信号，使用家庭小区码和国外小区码。

4. 发明授权

US07194265B2 Method and system for determining antenna of radio base station at moving target area during handover 失效
标题翻译：移动中移动目标区域确定无线电基站天线的方法和系统
公开(公告)号：US07194265B2
公开(公告)日：2007-03-20
申请号：US10449195
申请日：2003-06-02
申请人： Takayuki Ishiguro , Hiroyuki Ishii
发明人： Takayuki Ishiguro , Hiroyuki Ishii
IPC分类号： H04Q7/20
CPC分类号： H04W72/082 , H04B7/022 , H04B7/0805 , H04W36/0055 , H04W72/046 , H04W88/08
摘要： At a time of the handover, the communications with respect to the radio terminal related to the handover are carried out by using the same antenna as the antenna with respect to the other radio terminal that is already located in the moving target area, so that interferences due to the difference in the propagation paths can be suppressed to the minimum, and the receiving quality can be improved.
摘要翻译：在切换时，通过使用与天线相同的天线相对于已经位于移动目标区域中的其他无线终端来执行与切换有关的无线终端的通信，从而干扰由于传播路径的差异可以被抑制到最小，并且可以提高接收质量。

5. 发明授权

US07039406B2 Radio communication method, radio base station and radio terminal 失效
标题翻译：无线电通信方式，无线基站和无线终端
公开(公告)号：US07039406B2
公开(公告)日：2006-05-02
申请号：US10643966
申请日：2003-08-20
申请人： Takayuki Ishiguro , Hiroyuki Ishii
发明人： Takayuki Ishiguro , Hiroyuki Ishii
IPC分类号： H04Q7/20
CPC分类号： H04L1/0021 , H04L1/0001 , H04L1/1803 , H04L1/1812 , H04L2001/0096 , H04W24/00 , H04W36/00 , H04W88/08
摘要： In radio communication, the throughput reduction of a whole radio communication system caused by discarding retransmission data at the time of handover is prevented. The system includes a radio terminal for conducting data transmission and reception with a radio base station by executing one or more processes, a process executer in the radio base station for executing processes depending upon a number of processes executed in the radio terminal, and transmitting/receiving data to/from the radio terminal, a handover monitor in the radio base station for monitoring for the occurrence of handover or for the possibility of occurrence of handover in the radio terminal, and a process number controller in the radio base station for controlling the number of processes executed by the process executer according to a result of monitoring conducted by the handover monitor.
摘要翻译：在无线通信中，防止在切换时丢弃重发数据导致的整体无线通信系统的吞吐量降低。该系统包括用于通过执行一个或多个处理与无线电基站进行数据发送和接收的无线电终端，所述无线电基站中的过程执行器用于根据在无线终端中执行的处理的数量执行处理，以及发送/ 向无线电终端接收数据，在无线电基站中用于监视切换的发生或无线电终端中发生切换的可能性的无线电基站中的切换监视器，以及用于控制无线终端中的处理号码控制器由处理执行器根据切换监视器进行的监视的结果执行的处理的数量。

6. 发明授权

US07539173B2 Radio communication system, radio terminal, base station, control equipment and communication method 失效
标题翻译：无线电通信系统，无线电终端，基站，控制设备和通信方式
公开(公告)号：US07539173B2
公开(公告)日：2009-05-26
申请号：US10443776
申请日：2003-05-23
申请人： Takayuki Ishiguro , Hiroyuki Ishii
发明人： Takayuki Ishiguro , Hiroyuki Ishii
IPC分类号： H04B7/212 , H04J3/00
CPC分类号： H04W72/02 , H04W36/18 , H04W36/30 , H04W88/12
摘要： A radio communication system comprises a radio terminal and a plurality of base stations. The base stations communicate with the radio terminal by connecting radio links with mutually different frequencies. The base stations comprise a control signal transmitter configured to transmit control signals in a plurality of control signal time slots included in one frame. The radio terminal comprises a reception time slot determining unit configured to determine reception time slots for receiving the control signals transmitted from the plurality of base stations, from among the plurality of control signal time slots, a control signal receiver configured to receive the control signals in the reception time slots determined by the reception time slot determining unit, and a communication signal transmitter configured to transmit communication signal to the base station in an uplink communication signal time slot other than the control signal time slots.
摘要翻译：无线电通信系统包括无线电终端和多个基站。基站通过连接具有相互不同频率的无线电链路与无线电终端进行通信。基站包括控制信号发射器，其被配置为在包括在一个帧中的多个控制信号时隙中发送控制信号。无线终端包括：接收时隙确定单元，被配置为从多个控制信号时隙中确定用于接收从多个基站发送的控制信号的接收时隙，被配置为接收控制信号的控制信号接收器由接收时隙确定单元确定的接收时隙，以及通信信号发送器，被配置为在控制信号时隙以外的上行链路通信信号时隙中向基站发送通信信号。

7. 发明授权

US07558236B2 Communication method and system for improving control signal receiving quality during handover 失效
标题翻译：用于改善切换过程中控制信号接收质量的通信方法和系统
公开(公告)号：US07558236B2
公开(公告)日：2009-07-07
申请号：US10453687
申请日：2003-06-04
申请人： Takayuki Ishiguro
发明人： Takayuki Ishiguro
IPC分类号： H04W4/00
CPC分类号： H04W36/12 , H04W36/08 , H04W72/08
摘要： A control device for carrying out control of first and second radio base stations at a time of handover from a first radio base station to a second radio base station in radio communications between a radio terminal and a radio base station is provided to prevent the use of signals other than the control signals currently used in the areas before and after the moving, in the same channel as the control signals currently used in the moving target area, during the handover, such that it is possible to improve the receiving quality of the control signals at the radio terminal.
摘要翻译：提供一种控制装置，用于在无线电终端和无线电基站之间的无线电通信中从第一无线电基站到第二无线电基站的切换时执行第一和第二无线电基站的控制，以防止使用在与移动目标区域中当前使用的控制信号相同的信道中，在移动之前和之后的区域中当前使用的控制信号以外的信号，使得可以提高控制的接收质量信号在无线电终端。

8. 发明授权

US06961577B2 Radio communication system for reducing interferences with respect to other communication system using close frequency band 有权
公开(公告)号：US06961577B2
公开(公告)日：2005-11-01
申请号：US10153899
申请日：2002-05-24
申请人： Rie Nagato , Shinji Uebayashi , Takayuki Ishiguro , Osamu Nakamura
发明人： Rie Nagato , Shinji Uebayashi , Takayuki Ishiguro , Osamu Nakamura
IPC分类号： H04W16/10 , H04W16/14 , H04W72/04 , H04W72/08 , H04Q7/20
CPC分类号： H04W16/10 , H04B17/318 , H04M15/8044 , H04M2215/2026 , H04M2215/32 , H04M2215/42 , H04M2215/745 , H04W4/24 , H04W16/14 , H04W52/0238 , H04W64/006 , H04W72/0453 , H04W72/082 , Y02D70/164
摘要： A communication channel allocation method allocates a communication channel to communications between a mobile terminal device and a second radio base station using a second frequency band which is close to a first frequency band used by a first radio base station, by detecting a first distance between the second radio base station and the first radio base station, detecting a second distance between the second radio base station and the mobile terminal device when the first distance is less than a first threshold, and allocating a communication channel of a frequency far from the first frequency band in the second frequency band to the communications between the second radio base station and the mobile terminal device when the second distance is less than a second threshold.

9. 发明授权

US06617603B2 Surface defect tester 失效
公开(公告)号：US06617603B2
公开(公告)日：2003-09-09
申请号：US10084911
申请日：2002-03-01
申请人： Takayuki Ishiguro , Hiroshi Nakajima
发明人： Takayuki Ishiguro , Hiroshi Nakajima
IPC分类号： G01N2188
CPC分类号： G01N21/88
摘要： An image of a scanning position on a faceplate on a light receiving region defined by an arrangement of n light receiving elements such that an amount of light received by the light receiving region becomes a peak at a center of the light receiving region in an arranging direction of the light receiving elements and is gradually reduced substantially symmetrically toward both ends thereof in the same direction. Therefore, if there is no defect in the surface of the faceplate, levels of light receiving signals of the light receiving elements arranged substantially symmetrically in position on both sides of the light receiving region with respect to the center thereof as a reference are substantially equal and there is no substantial difference therebetween. When there is a recessed or protruded defect in a scan position of the faceplate surface, the image on the light receiving region is shifted in either direction from the center by light reflected by a side slope portion of the recessed or protruded defect and the difference of the levels of the light receiving signals in symmetrical positions becomes large. The defect is detected when the difference is larger than a predetermined value.

10. 发明申请

US20080239904A1 METHOD AND APPARATUS FOR INSPECTING A SURFACE OF A SPECIMEN 审中-公开
标题翻译：检测样本表面的方法和装置
公开(公告)号：US20080239904A1
公开(公告)日：2008-10-02
申请号：US12039758
申请日：2008-02-29
申请人： Minoru YOSHIDA , Takayuki Ishiguro , Shigeru Serikawa
发明人： Minoru YOSHIDA , Takayuki Ishiguro , Shigeru Serikawa
IPC分类号： G11B5/58
CPC分类号： G11B19/048
摘要： Inspection with respect to a defect on a surface of a substrate with an inherent or partial wave-like distortion is performed with high accuracy in consideration with the fluctuation caused by the wave-like distortion detected by the defect in excess of the signal level. The substrate is diagonally illuminated while being rotated and moved toward one axial direction to detect the specular reflected light and the scattered light. Based on the detected signal waveform, the state with respect to the inherent or partial wave-like distortion is determined. When the wave-like distortion exists in the substrate, the waveform is divided, and the threshold value is set for the divided regions. The signal higher than the threshold value will be output or displayed as the defect.
摘要翻译：考虑到由超过信号电平的缺陷检测的波形失真引起的波动，以高精度高精度地执行相对于具有固有或部分波状失真的基板表面的缺陷的检查。基板被旋转并沿一个轴向移动时被对角照明，以检测镜面反射光和散射光。基于检测到的信号波形，确定相对于固有或部分波状失真的状态。当在衬底中存在波状失真时，分割波形，并且为分割区域设定阈值。高于阈值的信号将被输出或显示为缺陷。

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