会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 23. 发明授权
    • Wireless communication method and system using beam direction-variable antenna
    • 无线通信方法和系统采用波束方向可变天线
    • US06879845B2
    • 2005-04-12
    • US09930134
    • 2001-08-16
    • Toshiro SuzukiKen TakeiSatoshi TakahashiHiroshi UsamiYuuji Ishida
    • Toshiro SuzukiKen TakeiSatoshi TakahashiHiroshi UsamiYuuji Ishida
    • H04B7/02H04W16/28H04M1/00
    • H04W16/28
    • In a time-division multiplexing wireless communication system, an antenna module has plural antenna elements. Receiver high-frequency circuit synthesizes signals from the antenna elements according to an antenna directivity having a desired beam pattern. Demodulator selects one of the received signals from wireless terminals according to the synthesized received signals, and determines transmission beam direction information for use in directing the beam in the selected direction. Weighting circuit generates weight coefficients for setting of the beam patterns and transmission beam directions according to the transmission beam direction information, and produces transmission time slots according to a table listing the relations of the transmission beam directions and the time slots for use in the beam radiation in those directions. Down-link fixed beam-forming circuit and modulator control the antenna module using the generated beam pattern, beam direction and transmission time slots to transmit the down-link signal.
    • 在时分复用无线通信系统中,天线模块具有多个天线元件。 接收机高频电路根据具有所需波束图案的天线方向性从天线元件合成信号。 解调器根据合成的接收信号从无线终端选择一个接收到的信号,并且确定用于将波束指向所选方向的传输波束方向信息。 加权电路根据传输波束方向信息产生用于设置波束图案和传输波束方向的加权系数,并根据列出发射波束方向与用于波束辐射的时隙的关系的表产生传输时隙 在这些方向。 下行链路固定波束形成电路和调制器使用生成的波束图案,波束方向和传输时隙来控制天线模块,以发送下行链路信号。
    • 24. 发明授权
    • Mobile communication system, mobile station, and base station that calculates distance from mobile station
    • 移动通信系统,移动台和计算距离移动台的基站
    • US06701132B1
    • 2004-03-02
    • US09517483
    • 2000-03-02
    • Shoji FukuzawaTetsuhiko HirataMasashi YanoNorihisa MatsumotoToshiro Suzuki
    • Shoji FukuzawaTetsuhiko HirataMasashi YanoNorihisa MatsumotoToshiro Suzuki
    • H04B1700
    • H04W64/00G01S5/10
    • A mobile communication system that can obtain mobile station location information repeatedly at short intervals, without depending on whether base stations are synchronous or asynchronous, with lower loads and suppressed use of radio resources. For obtaining location information, a mobile station receives a paging channel periodically sent from a base station (Step 100), obtains the contents and the reception timing of this paging channel. Further, if it is necessary to obtain the transmission timing of the paging channel, that transmission timing is obtained (Steps 105, 106). The propagation delay of the paging channel or propagation delay differences between a plurality of periodic paging channels are calculated from the transmission timing and the reception timing of the paging channel (Step 107). The mobile station location information is calculated from the propagation delay or propagation delay difference, and outputted (Steps 108, 109, 110).
    • 一种移动通信系统,能够以较短的间隔重复地获取移动台位置信息,而不依赖于基站是同步的还是异步的,具有较低的负载并且抑制了无线电资源的使用。 为了获得位置信息,移动站接收从基站周期性地发送的寻呼信道(步骤100),获得该寻呼信道的内容和接收定时。 此外,如果需要获得寻呼信道的发送定时,则获得发送定时(步骤105,106)。 从寻呼信道的发送定时和接收定时计算寻呼信道的传播延迟或多个周期性寻呼信道之间的传播延迟差异(步骤107)。 从传播延迟或传播延迟差计算出移动站位置信息,并输出(步骤108,109,110)。
    • 29. 发明授权
    • Timing extraction circuit and communication system utilizing the same
    • 定时提取电路及利用其的通信系统
    • US5237590A
    • 1993-08-17
    • US804925
    • 1991-12-11
    • Tohru KazawaToshiro SuzukiTakashi MoritaSouichi Yamashima
    • Tohru KazawaToshiro SuzukiTakashi MoritaSouichi Yamashima
    • H03M5/20H04L7/033
    • H03M5/20H04L7/0331H04L7/0337G11B20/10037
    • A timing clock extraction circuit for extracting from a multilevel code signal, transmitted at a predetermined baud rate, in which cross timings with a reference level are generated at frequency timings several times the baud rate, a clock pulse train at the baud rate and obtaining discriminative data from the multilevel code signal in accordance with the extracted clock pulse train. The timing clock extraction circuit includes a detector for detecting cross timings between the multilevel code signal and a predetermined threshold value; a synchronization control circuit for outputting a clock pulse train having a frequency several times said baud rate in synchronism with the cross timings; a clock generator for dividing the several-time clock pulses to generate a plurality of trains of baud rate clock pulses in different phase from each other; and a decision unit for distinguishing a baud rate clock pulse train from the plurality of trains of baud rate clock pulses which are synchronized with discriminative points of the multilevel code signal by using the cross timings and the clock pulse train having a frequency several times the baud rate.
    • 一种定时时钟提取电路,用于从按照波特率的频率定时产生具有参考电平的交叉定时的以预定波特率发送的多电平码信号,波特率的时钟脉冲串,并获得鉴别码 来自多级代码信号的数据根据​​提取的时钟脉冲串。 定时时钟提取电路包括用于检测多级代码信号与预定阈值之间的交叉定时的检测器; 同步控制电路,用于与交叉定时同步地输出具有频率几倍所述波特率的时钟脉冲串; 时钟发生器,用于分割多个时钟脉冲以产生彼此不同相位的多个波特率时钟脉冲串; 以及判定单元,用于通过使用交叉定时和具有频率几倍的波特率的时钟脉冲串来区分波特率时钟脉冲串与与多个代码信号的判别点同步的多个波特率时钟脉冲串 率。