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    • 46. 发明专利
    • Nmr probe
    • NMR探针
    • JP2012103039A
    • 2012-05-31
    • JP2010249698
    • 2010-11-08
    • Jeol Resonance Inc株式会社 Jeol Resonance
    • IKEDA HIROSHIKIDA YOSHIKI
    • G01R33/34G01R33/36
    • PROBLEM TO BE SOLVED: To provide a device by which C-X measurement is easily allowed regarding an NMR probe.SOLUTION: An NMR probe is constituted by including: a sample coil for the NMR probe; a separation circuit one end of which is connected one node of the sample coil; a first capacity device one end of which is connected to the other end of the separation circuit and the other end of which is grounded to the ground; a second capacity device one end of which is connected to one node of the sample coil for the NMR probe and the other end of which is grounded to the ground; a third capacity device one end of which is connected to the other node of the sample coil for the NMR probe and the other end of which is grounded; a fourth capacity device one end of which is similarly connected to the other node of the sample coil for the NMR probe and the other end of which is grounded to the ground; and a fifth capacity device one end of which is connected to the other node of the sample coil, the other end of which is connected to an external input/output terminal, and which matches to a system impedance.
    • 要解决的问题:提供关于NMR探针容易地进行C-X测量的装置。 解决方案:NMR探针包括:用于NMR探针的样品盘管; 一个分离电路,其一端与样品线圈的一个节点连接; 第一容量装置,其一端连接到分离电路的另一端,另一端接地; 一个第二容量装置,其一端连接到用于NMR探针的样品线圈的一个节点,另一端接地; 第三容量器件的一端连接到用于NMR探针的样品线圈的另一个节点,另一端接地; 其第四容量器件类似地连接到用于NMR探针的样品线圈的另一个节点,另一端接地到地面; 以及第五容量器件,其一端连接到采样线圈的另一个节点,另一端连接到外部输入/输出端子,并与系统阻抗相匹配。 版权所有(C)2012,JPO&INPIT
    • 50. 发明专利
    • Magnetic resonance imaging apparatus
    • 磁共振成像装置
    • JP2011189079A
    • 2011-09-29
    • JP2010059803
    • 2010-03-16
    • Toshiba CorpToshiba Medical Systems Corp東芝メディカルシステムズ株式会社株式会社東芝
    • SEKIGUCHI TAKAKIMIAKITA KOJINAKANISHI TOSHIYUKIOKAMOTO KAZUYAKATO SOJURO
    • A61B5/055G01R33/36
    • G01R33/3692G01R33/3607
    • PROBLEM TO BE SOLVED: To enable image reconstruction with high accuracy based on echo signals without deterioration by reducing influence of interference by other radio waves to transmit clock signals with high accuracy.
      SOLUTION: A clock transmission circuit 113 and a transmission antenna 114 radio-transmit clock signals obtained by modulating carrier signals by clock signals. A reception antenna 90 and a clock reception circuit 91 reproduce clock signals based on the radio-transmitted clock signals. A carrier sense circuit 111 detects frequency of the radio wave being a potential interference wave for clock signals. A carrier wave control circuit 112 selects a frequency with comparatively low interference against the carried wave from a variable range of carrier wave signals and controls the clock transmission circuit 113 so as to use a carrier wave signal of the frequency.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:通过减少其他无线电波的干扰的影响,以高精度传输时钟信号,基于回波信号高精度地进行图像重建而不劣化。 解决方案:时钟发送电路113和发送天线114通过时钟信号调制载波信号而获得的无线电发送时钟信号。 接收天线90和时钟接收电路91基于无线电发送的时钟信号再现时钟信号。 载波检测电路111检测作为时钟信号的潜在干扰波的无线电波的频率。 载波控制电路112从载波信号的可变范围中选择对携带波的干扰比较低的频率,并且控制时钟发送电路113以便使用该频率的载波信号。 版权所有(C)2011,JPO&INPIT