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61 条记录 (耗时 0.041 秒)

    Transmission circuit
    51.
    发明授权
    Transmission circuit 有权
    传输电路

    公开(公告)号：US08792546B2

    公开(公告)日：2014-07-29

    申请号：US13529178

    申请日：2012-06-21

    申请人： Kazuo Nagatani ,  Eisuke Fukuda ,  Yasushi Yamao

    发明人： Kazuo Nagatani ,  Eisuke Fukuda ,  Yasushi Yamao

    IPC分类号： H04L27/36

    CPC分类号： H03F3/24 ,  H03F1/0227 ,  H04L27/3411 ,  H04L27/361

    摘要： A transmission circuit comprises a Σ−Δ modulator to perform Σ−Δ modulation of an amplitude modulation component of a modulation signal and to output a pulse width modulation signal, an angle modulator to generate an angle modulation component signal of a signal obtained by multiplying the modulation signal by a transmission output control coefficient corresponding to a transmission output in a power amplifier, and a multiplier to multiply the pulse width modulation signal by the angle modulation component signal and to output a result of the multiplication as an output signal to the power amplifier.

    摘要翻译： 传输电路包括＆amp; 调制器执行＆Dgr; 调制调制信号的幅度调制分量并输出脉宽调制信号，角度调制器产生通过将调制信号乘以对应于发送输出的发送输出控制系数而获得的信号的角度调制分量信号 功率放大器和乘法器，将脉宽调制信号乘以角度调制分量信号，并将乘法结果作为输出信号输出到功率放大器。

    Resonant element and high frequency filter, and wireless communication apparatus equipped with the resonant element or the high frequency filter
    52.
    发明授权
    Resonant element and high frequency filter, and wireless communication apparatus equipped with the resonant element or the high frequency filter 失效
    谐振元件和高频滤波器，以及配备有谐振元件或高频滤波器的无线通信装置

    公开(公告)号：US07944330B2

    公开(公告)日：2011-05-17

    申请号：US12043585

    申请日：2008-03-06

    申请人： Yasushi Yamao ,  Makoto Hasegawa ,  Hiroyuki Kobayashi

    发明人： Yasushi Yamao ,  Makoto Hasegawa ,  Hiroyuki Kobayashi

    IPC分类号： H01P1/203 ,  H01P3/08

    CPC分类号： H01P7/08 ,  H01P1/203

    摘要： A resonant element that causes a signal input from an input terminal to resonate at a predetermined resonance frequency and outputs it to an output terminal is provided. The element has a transmission line series including a plurality of transmission lines connected in series with each other and intersecting with a hotline connecting the input terminal and the output terminal and a plurality of switches. At least one of one end and the other end of the transmission line series is a grounded end. The resonant element having first and second end side, each end side having a first transmission line and a second transmission line connected to a switch having a grounded end. The resonance frequency is switched by turning on/off the switch to change the sum of the lengths of the transmission lines through which the signal passes.

    摘要翻译： 提供一种谐振元件，其使得从输入端子输入的信号以预定的谐振频率谐振并将其输出到输出端子。 该元件具有包括彼此串联连接的多个传输线并与连接输入端和输出端的热线和多个开关相交的传输线系列。 传输线系列的一端和另一端的至少一端是接地端。 谐振元件具有第一端侧和第二端侧，每个端侧具有第一传输线和连接到具有接地端的开关的第二传输线。 通过打开/关闭开关来切换谐振频率，以改变信号通过的传输线的长度之和。

    Radio resource allocation method and base station using the same
    54.
    发明授权
    Radio resource allocation method and base station using the same 有权

    公开(公告)号：US07130638B2

    公开(公告)日：2006-10-31

    申请号：US10020926

    申请日：2001-12-19

    申请人： Lan Chen ,  Narumi Umeda ,  Yasushi Yamao

    发明人： Lan Chen ,  Narumi Umeda ,  Yasushi Yamao

    IPC分类号： H04Q7/20 ,  H04B7/00

    CPC分类号： H04W72/10 ,  H04W72/0486

    摘要： In a radio resource allocation method of the present invention, use-state information of radio resources and priority information of mobile stations using the same radio resources of both a base station of concern and neighboring base stations is detected at the base station of concern. A new radio resource is allocated to a link between the base station of concern and a requesting mobile station in a cell site of the base station of concern based on the use-state information and the priority information of both the base station and the neighboring base stations.

    Coplanar waveguide resonator
    57.
    发明申请
    Coplanar waveguide resonator 失效
    共面波导谐振器

    公开(公告)号：US20050088259A1

    公开(公告)日：2005-04-28

    申请号：US10934463

    申请日：2004-09-07

    申请人： Kei Satoh ,  Shoichi Narahashi ,  Daisuke Koizumi ,  Yasushi Yamao

    发明人： Kei Satoh ,  Shoichi Narahashi ,  Daisuke Koizumi ,  Yasushi Yamao

    IPC分类号： H01P7/08

    CPC分类号： H01P7/086

    摘要： Formed on a dielectric substrate 11 are a center conductor 12 having a length L1 which is equivalent in electrical length to one quarter wavelength and ground conductors 13 disposed on the opposite sides of the center conductor with a gap portion therebetween in coplanar manner. The center conductor 12 and the ground conductors 13 located on the opposite sides thereof are connected together by shorting ends 14 resulting in forming corner areas, respectively whereby obtaining a coplanar waveguide resonator, wherein the edge line of the shorting end 14 is recessed to have an arcuate curve configuration so that each corner area has an angle of greater than 90° to reduce power current concentration at the corner points in the respective corner areas.

    摘要翻译： 形成在电介质基板11上的中心导体12具有长度L 1，其长度与四分之一波长的电长度相当，并且接地导体13设置在中心导体的相对侧上，其中间隔部分之间具有共面的方式。 位于其相对侧的中心导体12和接地导体13通过短路端14连接在一起，从而分别形成拐角区域，从而获得共面波导谐振器，其中短路端14的边缘线凹入以具有 弧形曲线构造，使得每个拐角区域具有大于90°的角度，以减少各个拐角区域中角点处的功率电流集中。

    Cluster structured mobile communication system base station, cluster control station, line control station and mobile station
    58.
    发明授权
    Cluster structured mobile communication system base station, cluster control station, line control station and mobile station 失效
    集群式移动通信系统基站，集群控制站，线路控制站，移动台

    公开(公告)号：US06831904B1

    公开(公告)日：2004-12-14

    申请号：US09626541

    申请日：2000-07-26

    申请人： Yasushi Yamao ,  Hirohito Suda ,  Narumi Umeda

    发明人： Yasushi Yamao ,  Hirohito Suda ,  Narumi Umeda

    IPC分类号： H04Q700

    CPC分类号： H04W92/20 ,  H04W92/12

    摘要： A mobile communication system includes a line control station, and a plurality of base stations belonging to a plurality of clusters so that each of the clusters includes a plurality of base stations. Each of the clusters includes a cluster control station which is connected to the line control station via a line and controls the base stations within the cluster to which the cluster control station belongs. In addition, each of the base stations within one cluster is connected to other base stations within the one cluster and/or the cluster control station within the one cluster via lines, so that each of the base stations within the one cluster is directly or indirectly connected to the cluster control station within the one cluster.

    摘要翻译： 移动通信系统包括线路控制站和属于多个群集的多个基站，使得每个群集包括多个基站。 每个集群包括经由线路连接到线路控制站的集群控制站，并且控制集群控制站所属的集群内的基站。 此外，一个集群内的每个基站经由线路连接到一个集群内的一个集群和/或集群控制站内的其他基站，使得一个集群内的每个基站都直接或间接地 连接到一个集群内的集群控制台。

    Mobile communications system
    59.
    发明授权
    Mobile communications system 失效
    移动通信系统

    公开(公告)号：US5805076A

    公开(公告)日：1998-09-08

    申请号：US481433

    申请日：1996-03-19

    申请人： Shogo Ito ,  Yasushi Yamao

    发明人： Shogo Ito ,  Yasushi Yamao

    IPC分类号： H04W68/00 ,  H04W88/18 ,  H04B7/00 ,  H04Q1/00 ,  H04Q7/00

    CPC分类号： H04W88/185 ,  H04W68/00

    摘要： In a mobile communications system wherein the transmission form changes in the course of the signal, high quality transmission of change information relating to the transmission form is obtained. To achieve this, information giving advance notice of a change is transmitted prior to transmitting the change information relating to the transmission form. Even if a situation arises in which transmitted information has not been conveyed without error at a scheduled change time that was notified in advance, it is possible to resolve this situation by referring to the information giving advance notice of the change. This enables faulty paging and other defects resulting from erroneous changes of transmission form to be reduced.

    摘要翻译： PCT No.PCT / JP94 / 01754 Sec。 371日期：1996年3月19日 102（e）1996年3月19日PCT 1994年10月19日PCT PCT。 出版物WO95 / 11575 日期1995年04月27日在传输方式在信号过程中变化的移动通信系统中，获得与传输形式有关的改变信息的高质量传输。 为了实现这一点，在发送与发送表单有关的变更信息之前，发送提前通知变更的信息。 即使在预先通知的预定变更时间没有传送未发送的信息的情况下，也可以参照提供变更通知的信息来解决这种情况。 这样就能够减少由于传输形式的错误改变导致的故障寻呼和其他缺陷。

    Message fragmenting in a time diversity radio system
    60.
    发明授权
    Message fragmenting in a time diversity radio system 失效
    时间分集无线电系统中的消息分段

    公开(公告)号：US5546394A

    公开(公告)日：1996-08-13

    申请号：US352647

    申请日：1994-12-09

    申请人： Eric T. Eaton ,  Ronald H. Evoy ,  David J. Hayes ,  David F. Willard ,  Shogo Ito ,  Yasushi Yamao

    发明人： Eric T. Eaton ,  Ronald H. Evoy ,  David J. Hayes ,  David F. Willard ,  Shogo Ito ,  Yasushi Yamao

    IPC分类号： C10G50/00 ,  H01G4/06 ,  H04B7/06 ,  H04B7/212 ,  H04L1/02 ,  H04L1/08 ,  H04L12/58 ,  H04W88/18 ,  H04Q7/08

    CPC分类号： H04W88/187 ,  H04L1/08

    摘要： A time diversity communication system (150) comprises a messaging terminal (154), a queue (156) at the messaging terminal for queuing incoming messages, an encoder (158) for encoding a first fragment of a message and the remaining fragments of a message, a transmitter (160) for repeatedly transmitting the first fragment in a plurality of time slots to at least one selective call receiver (201) operating in a first mode, the number of time slots equaling a desired number of repeat transmissions and wherein the first fragment contains instructions for decoding the remaining fragments in a second mode by the selective call receiver, the transmitter (160) also repeatedly transmits the remaining portions of the message in subsequent time slots and at least one selective call receiver that decodes the first fragment and remaining fragments of the message in accordance with instructions in the decoded first fragment.

    摘要翻译： 时间分集通信系统（150）包括消息终端（154），消息终端处的队列（156），用于排队进入消息;编码器（158），用于对消息的第一片段进行编码，以及消息的剩余片段 ，用于将多个时隙中的第一片段重复发射到以第一模式操作的至少一个选呼接收机（201）的发射机（160），所述时隙数量等于期望数量的重复传输，并且其中所述第一 片段包含用于通过选择呼叫接收器解码第二模式中的剩余片段的指令，发射机（160）还在随后的时隙中重复发送消息的剩余部分，以及至少一个解码第一片段并保留的选呼接收器 消息的片段根据解码的第一片段中的指令。