Receiving device for spread spectrum communication system
    2.
    发明授权
    Receiving device for spread spectrum communication system 失效
    扩频通信系统接收装置

    公开(公告)号:US06731675B2

    公开(公告)日:2004-05-04

    申请号:US09812955

    申请日:2001-03-27

    IPC分类号: H04B1707

    CPC分类号: H04B1/7075

    摘要: A receiving device is provided with a DLL circuit of a reduced scale. An inverse spreading processing to ensure the synchronism with a received signal and a processing to inversely spread original data in the received signal are performed by a time-sharing operation using one inverse spreading circuit and one integrator. During a period in which synchronous data for detecting a slot duration included in the received signal is received, the synchronous data is alternately inversely spread by an early code and a late code and sample-hold circuits alternately sample and hold the integrated output. Further, based on the difference (error signal) between sample-hold signals, the early code, the late code and a reference code outputted from a code sequence generator are synchronized with the received signal. Then, the inverse spreading circuit and an integrator inversely spread the original data in the received signal based on the synchronized reference code and a detection output is generated by integrating the inverse spreading output.

    摘要翻译: 接收装置具有缩小规模的DLL电路。 通过使用一个反向扩展电路和一个积分器的分时操作来执行用于确保与接收信号的同步的逆扩展处理和在接收信号中反扩展原始数据的处理。 在接收到用于检测包含在接收信号中的时隙持续时间的同步数据的时段期间,同步数据通过早期代码交替地逆扩展,并且后期代码和采样保持电路交替地采样并保持积分输出。 此外,基于采样保持信号之间的差(误差信号),将早期码,晚代码和从码序列发生器输出的参考码与接收信号同步。 然后,逆扩展电路和积分器基于同步的参考码对接收信号中的原始数据进行反向扩展,并且通过积分逆扩展输出来产生检测输出。

    Mobile communication system with mobile station position detection
    3.
    发明授权
    Mobile communication system with mobile station position detection 失效
    移动通信系统与移动台位置检测

    公开(公告)号:US06980814B2

    公开(公告)日:2005-12-27

    申请号:US09907503

    申请日:2001-07-18

    IPC分类号: H04W64/00 H04Q7/20

    CPC分类号: H04W64/00

    摘要: A mobile communication system including a plurality of base stations arranged in a communication area, each emitting a radio wave inherent thereto and a mobile station moving in the communication area and communicating with respective base stations via the transmitted radio waves. There is previously stored a location correlation data group including correlation data representing correlation situations of a plurality of arriving radio waves produced by the transmitted radio waves at respective ones of a plurality of sampling locations within the communication area, the location correlation data corresponding to respective locations. Upon reception of radio waves at a current location of the mobile station, current correlation data is calculated representing correlation situations among received arriving radio waves for the respective mobile station. The location correlation data in the location correlation data group is compared with the current correlation data, and the current position of the mobile stations is determined in accordance with a result of the comparison, generating the determined current position data.

    摘要翻译: 一种移动通信系统,包括布置在通信区域中的多个基站,每个基站发射固有的无线电波,以及在通信区域中移动的移动站,并且经由所发送的无线电波与各个基站进行通信。 预先存储位置相关数据组,其包括表示在通信区域内的多个采样位置中的各个位置处由发射的无线电波产生的多个到达的无线电波的相关性的相关数据,对应于各个位置的位置相关数据 。 在移动站的当前位置接收到无线电波时,计算表示各个移动台的接收到的无线电波之间的相关情况的当前相关数据。 将位置相关数据组中的位置相关数据与当前相关数据进行比较,并根据比较结果确定移动站的当前位置,生成确定的当前位置数据。

    Communicating apparatus and communicating method
    4.
    发明授权
    Communicating apparatus and communicating method 失效
    通讯装置及通讯方式

    公开(公告)号:US07046698B1

    公开(公告)日:2006-05-16

    申请号:US09658877

    申请日:2000-09-08

    IPC分类号: H04J3/06

    CPC分类号: H04W56/0085 H04B7/2662

    摘要: A communicating apparatus performs an asynchronous communication with a base station. The communicating apparatus is provided with: a receiving device for receiving a down link signal, which is transmitted from the base station and in which a division signal is inserted for each of constant time intervals; a detecting device for detecting division signals out of the received down link signal, in phase to the constant time intervals; an adding device for adding the detected division signals over a predetermined time duration, which is longer than the constant time interval, with matching phases for each of the constant time intervals, so as to generate accumulated additional values; and a memory device for storing the accumulated additional values generated by the adding device, to thereby perform synchronization capturing with the base station on the basis of the accumulated additional values added over the predetermined time duration and stored in the memory device.

    摘要翻译: 通信装置与基站进行异步通信。 通信装置具有:接收装置,用于接收从基站发送的下行链路信号,并且对于每个恒定时间间隔插入分频信号; 检测装置,用于相对于所述恒定时间间隔检测所接收的下行链路信号中的分频信号; 一个加法装置,用于在比常数时间间隔长的预定持续时间内对每个恒定时间间隔的匹配相位增加检测到的除法信号,以产生累加的附加值; 以及存储装置,用于存储由加法装置产生的积累的附加值,从而基于在预定持续时间内添加并存储在存储装置中的累积附加值,与基站执行同步捕获。

    Apparatus and method for mobile communication
    5.
    发明授权
    Apparatus and method for mobile communication 失效
    移动通信的装置和方法

    公开(公告)号:US06813508B1

    公开(公告)日:2004-11-02

    申请号:US09671601

    申请日:2000-09-28

    IPC分类号: H04Q720

    CPC分类号: H04W36/32

    摘要: A mobile communication apparatus and method which extract surrounding base stations within a certain defined area centered at a present location of a mobile unit, carry out an arithmetic operation for obtaining a specified weighting coefficient with respect to each of the extracted surrounding base stations on the basis of a direction of each of the extracted surrounding base stations from the present location of the mobile unit and a traveling direction of the mobile unit carry out a further arithmetic operation for weighting a value of the electric field strength of a signal recieved from each of the surrounding base stations with the weighting coefficient of a corresponding surrounding base station to provide a weighted electric field strength of each of the extracted surrounding base station, and select the one base station from the extracted surrounding base stations depending on a value of the weighted electric field strength.

    摘要翻译: 在以移动单元的当前位置为中心的某个定义区域内提取周围基站的移动通信装置和方法,执行用于基于每个提取的周边基站获得规定的加权系数的算术运算 从所述移动单元的当前位置提取的每个所述周边基站的方向,并且所述移动单元的行进方向执行进一步的算术运算,用于对从每个所述移动单元接收到的每个所接收的信号的电场强度的值进行加权 周围基站具有对应的周边基站的加权系数,以提供每个提取的周边基站的加权电场强度,并且根据加权电场的值从提取的周围基站中选择一个基站 强度。

    Communication apparatus and communication method
    7.
    发明授权
    Communication apparatus and communication method 失效
    通信设备和通信方法

    公开(公告)号:US06546258B1

    公开(公告)日:2003-04-08

    申请号:US09639888

    申请日:2000-08-17

    IPC分类号: H04B1500

    CPC分类号: H04W48/20

    摘要: A communication apparatus for communicating with one base station among a plurality of base stations is provided with a present position detecting device for detecting a present position of the communication apparatus and outputting present position information indicative of the detected present position. The communication apparatus is also provided with an identification information obtaining device for obtaining identification information of respective one of the base stations on the basis of the present position information outputted by the present position detecting device. The communication apparatus is further provided with a specifying device for specifying said one base station on the basis of the identification information obtained by the identification information obtaining device.

    摘要翻译: 在多个基站中与一个基站通信的通信装置设置有用于检测通信装置的当前位置并输出表示检测到的当前位置的当前位置信息的当前位置检测装置。 通信装置还具有识别信息获取装置,用于根据当前位置检测装置输出的当前位置信息获得各个基站的识别信息。 该通信装置还具有根据由识别信息获取装置获得的识别信息来指定所述一个基站的指定装置。

    Beam current controller for laser ion source
    8.
    发明授权
    Beam current controller for laser ion source 有权
    光束电流控制器用于激光离子源

    公开(公告)号:US08872127B2

    公开(公告)日:2014-10-28

    申请号:US13398553

    申请日:2012-02-16

    申请人: Masahiro Okamura

    发明人: Masahiro Okamura

    摘要: The present invention relates to the design and use of an ion source with a rapid beam current controller for experimental and medicinal purposes. More particularly, the present invention relates to the design and use of a laser ion source with a magnetic field applied to confine a plasma flux caused by laser ablation.

    摘要翻译: 本发明涉及具有用于实验和药用目的的快速束流控制器的离子源的设计和使用。 更具体地,本发明涉及具有施加磁场的激光离子源的设计和使用,以限制由激光烧蚀引起的等离子体通量。

    Antenna system
    9.
    发明授权
    Antenna system 失效
    天线系统

    公开(公告)号:US06310582B1

    公开(公告)日:2001-10-30

    申请号:US09493658

    申请日:2000-01-28

    IPC分类号: H01A300

    CPC分类号: H01Q21/28 H01Q1/125 H01Q3/08

    摘要: When communication is performed simultaneously with two moving bodies such as a satellite, an antenna construction in which a plurality of antennas do not become an obstacle to each other's communication and the direction (the azimuth angle and the elevation angle) adjusting mechanism thereof can be realized with a simple construction. The two antennas have another movable portion (a rotation mechanism with respect to the axis) independently, while sharing the direction adjusting mechanism for the azimuth angle and the elevation angle. The rotation axis of the rotation mechanism of each antenna faces the same direction on the same plane, and each rotation mechanism is separately arranged in an area defined by a plane obtained by extending the axis of the azimuth angle adjusting mechanism toward the axial direction of the elevation angle adjusting mechanism. The azimuth angle and the elevation angle of respective antennas can be separately adjusted by the rotation mechanism with respect to the axis, hence the antennas can be directed to the communication targets existing in the two different directions simultaneously from the reception point.

    摘要翻译: 当与诸如卫星的两个移动体同时进行通信时,可以实现多个天线不会成为彼此通信的障碍物的天线结构以及其方向(方位角和仰角)调节机构 施工简单。 两个天线独立地具有另一个可移动部分(相对于轴线的旋转机构),同时共享用于方位角和仰角的方向调节机构。 每个天线的旋转机构的旋转轴线在相同的平面上面向相同的方向,并且每个旋转机构分开布置在由通过使方位角调节机构的轴线朝向轴向方向延伸而获得的平面所限定的区域中 仰角调整机构。 可以通过旋转机构相对于轴分别调整各个天线的方位角和仰角,从而可以从接收点同时将天线指向存在于两个不同方向上的通信对象。