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90 条记录 (耗时 0.017 秒)

    Radio transmitter, radio receiver, transceiver and radio communication system
    66.
    发明专利
    Radio transmitter, radio receiver, transceiver and radio communication system 审中-公开
    无线电发射机，无线电接收机，收发机和无线电通信系统

    公开(公告)号：JP2009017003A

    公开(公告)日：2009-01-22

    申请号：JP2007174034

    申请日：2007-07-02

    申请人： Sony Corp ,  ソニー株式会社

    发明人： MAEDA TATSUO ,  IIDA YUKIO

    IPC分类号： H04B1/713 ,  H04B1/7136 ,  H04J11/00

    CPC分类号： H04B1/0053 ,  H04B1/28

    摘要： PROBLEM TO BE SOLVED: To deal with hopping in a plurality of band groups, and to generate a plurality of local frequencies by a simple configuration. SOLUTION: A radio transmitter transmits and processes signals hopping frequencies among a plurality of bands belonging to each band group in a plurality of band groups by using local frequencies separated from the center frequency of each band. The radio transmitter has a multiband generator 200 generating local frequencies on the high frequency side to the center frequency of each band belonging to a first band group in the case of communication by the first band group. In the radio transmitter, the multiband generator 200 generates the same local frequencies as those generated in the case of communication by the first band group as the local frequencies on the frequency side lower than the center frequency of each band belonging to a second band group in the case of communication by the second band group. COPYRIGHT: (C)2009,JPO&INPIT

    摘要翻译： 要解决的问题：处理多个频带组中的跳频，并通过简单的配置产生多个本地频率。 解决方案：无线电发射机通过使用从每个频带的中心频率分离的本地频率，在属于多个频带组中的每个频带组的多个频带之间发送和处理信号跳频。 无线电发射机具有多频带发生器200，在第一频带组通信的情况下，在高频侧产生属于第一频带组的每个频带的中心频率的本地频率。 在无线电发射机中，多频带发生器200生成与第一频带组通信的情况相同的本地频率，其频率侧的本地频率低于属于第二频带组的每个频带的中心频率 由第二乐团组通讯的情况。 版权所有（C）2009，JPO＆INPIT

    Matching circuit and dual band power amplifier
    67.
    发明专利
    Matching circuit and dual band power amplifier 有权
    匹配电路和双频功率放大器

    公开(公告)号：JP2008160192A

    公开(公告)日：2008-07-10

    申请号：JP2006343271

    申请日：2006-12-20

    申请人： Ntt Docomo Inc ,  株式会社エヌ・ティ・ティ・ドコモ

    发明人： FUKUDA ATSUSHI ,  OKAZAKI KOJI ,  NARAHASHI SHOICHI

    IPC分类号： H03F3/60

    CPC分类号： H04B1/0458 ,  H03F1/56 ,  H03F3/191 ,  H03F3/60 ,  H03F2200/111 ,  H03F2200/222 ,  H03F2200/252 ,  H03F2200/255 ,  H03F2200/423 ,  H03H7/38 ,  H04B1/0053

    摘要： PROBLEM TO BE SOLVED: To provide a matching circuit capable of performing impedance matching at the same time by each frequency band to the mixed signal of two frequency bands. SOLUTION: In this matching circuit in which a main-matching block 101 and a sub-matching block 102 are connected in series, the sub-matching b102 when a block is written as b in short includes: a series matching b110 of which the one end is connected in series to the main-matching b101; and a parallel matching network 170 connected to the other end of the series matching b110. When an AC frequency is a first frequency f 1 , the connection point of the series matching b110 and a first parallel matching b111 is alternatingly set in an open state, and the connection point of the first parallel matching b111 and a second parallel matching b112 is alternatingly set in a short-circuit state. When the AC frequency is the first frequency f 1 , impedance matching is performed by the main-matching b101 and the series matching b110, and when the AC frequency is the second frequency f 2 , impedance matching is performed by the main-matching b101 and the sub-matching b102. COPYRIGHT: (C)2008,JPO&INPIT

    摘要翻译： 要解决的问题：提供一种能够通过每个频带同时对两个频带的混合信号执行阻抗匹配的匹配电路。 解决方案：在主匹配块101和子匹配块102串联连接的匹配电路中，当块被写为b时的子匹配b102包括：串联匹配b110 其一端与主要配对b101串联连接; 以及与匹配b110的串联的另一端连接的并行匹配网络170。 当AC频率是第一频率f 1 时，串联匹配b110和第一并行匹配b111的连接点被交替地设置为打开状态，并且第一并行匹配b111的连接点 并且在短路状态下交替地设置第二并联b112。 当AC频率为第一频率f 1 时，通过主匹配b101和串联匹配b110进行阻抗匹配，当AC频率为第二频率f 2 < SB>，通过主匹配b101和子匹配b102进行阻抗匹配。 版权所有（C）2008，JPO＆INPIT