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    Electromagnetic wave transceiver apparatus and nuclear magnetic resonance analyzing apparatus using it
    11.
    发明申请
    Electromagnetic wave transceiver apparatus and nuclear magnetic resonance analyzing apparatus using it 失效
    电磁波收发器装置和使用它的核磁共振分析装置

    公开(公告)号：US20060049825A1

    公开(公告)日：2006-03-09

    申请号：US11206273

    申请日：2005-08-18

    Applicant: Hideta Habara ,  Minseok Park

    Inventor： Hideta Habara ,  Minseok Park

    IPC: G01B7/14

    CPC classification number: G01R33/3607 ,  G01R33/3621

    Abstract: An electromagnetic transceiver apparatus for a NMR apparatus has an intermediate frequency generator for preparing an intermediate wave, a transmission frequency converter for preparing, on the basis of an intermediate frequency of the intermediate wave, an electromagnetic wave to be radiated from a transmitter coil, a reception frequency converter for processing a signal received by the NMR probe, an analog-digital converter for converting an output of the reception frequency converter into a digital signal, an IQ detector for performing detection on the basis of an output of the analog-digital converter, a phase locked loop and a switch inserted between the analog-digital converter and the reception frequency converter to select either an input from the intermediate frequency generator or an input from the reception frequency converter.

    Abstract translation: 用于NMR装置的电磁收发器装置具有用于制备中间波的中频发生器，用于根据中间波的中频来准备要从发射器线圈辐射的电磁波的发送频率转换器， 用于处理由NMR探头接收的信号的接收频率转换器，用于将接收频率转换器的输出转换为数字信号的模拟数字转换器，用于根据模拟数字转换器的输出进行检测的IQ检测器 插入在模拟数字转换器和接收频率转换器之间的锁相环和开关，以选择来自中频发生器的输入或来自接收变频器的输入。

    Radiofrequency wave transmission circuit using arbitray waveform generator and NMR apparatus using the same
    12.
    发明申请
    Radiofrequency wave transmission circuit using arbitray waveform generator and NMR apparatus using the same 有权
    射频波传输电路采用仲裁波形发生器和NMR装置使用

    公开(公告)号：US20050206384A1

    公开(公告)日：2005-09-22

    申请号：US11058356

    申请日：2005-02-16

    Applicant: Hideta Habara ,  Minseok Park

    Inventor： Hideta Habara ,  Minseok Park

    IPC: A61B5/055 ,  G01R33/36 ,  G01V3/00

    CPC classification number: G01R33/3607

    Abstract: An NMR apparatus has a circuit adapted to improve the degree freedom of design and generate an excitation radiofrequency wave pulse suited for a sample to be measured. The radiofrequency wave transmission circuit includes a local oscillator, an IQ modulator having two mixers and two arbitrary waveform generators connected to the IQ modulator. Fourier inverse transform is applied to data inputted to the arbitrary waveform generators.

    Abstract translation: NMR装置具有适于提高设计自由度的电路，并产生适用于待测样品的激发射频波脉冲。 射频波发送电路包括本机振荡器，具有两个混频器的IQ调制器和连接到IQ调制器的两个任意波形发生器。 傅里叶反变换被应用于输入到任意波形发生器的数据。

    Direct Digital Synthesizer and Nuclear Magnetic Resonance Instrument Using the Same
    13.
    发明申请
    Direct Digital Synthesizer and Nuclear Magnetic Resonance Instrument Using the Same 失效
    直接数字合成器和使用它的核磁共振仪器

    公开(公告)号：US20080284470A1

    公开(公告)日：2008-11-20

    申请号：US12120385

    申请日：2008-05-14

    Applicant: Minseok Park ,  Michiya Okada ,  Shuya Hagiwara ,  Hideki Tanaka

    Inventor： Minseok Park ,  Michiya Okada ,  Shuya Hagiwara ,  Hideki Tanaka

    IPC: H03B21/00 ,  G01V3/14

    CPC classification number: G01R33/3607

    Abstract: A DDS (direct digital synthesizer) remarkably increased in the number of frequencies which can be output while maintaining the phase coherency, and an NMR instrument using such a DDS are provided. A DDS including phase accumulators and a phase-to-amplitude modulator is provided with a plurality of phase accumulators operating with fixed phase implements which are equal to powers of 2, a controller for outputting each bit of a frequency tuning word as control data, a plurality of switches for outputting an output of an associated one of the phase accumulators when an associated one of the control data supplied from the controller is 1 and outputting 0 when the associated one of the control data is 0, and an adder for adding up outputs of the switches.

    Abstract translation: DDS（直接数字合成器）在保持相位一致性的同时可以输出的频率数量显着增加，并且提供使用这种DDS的NMR仪器。 包括相位累加器和相位到幅度调制器的DDS设置有多个相位累加器，其以等于2的功率的固定相位工具操作;控制器，用于输出频率调谐字的每个位作为控制数据; 多个开关，用于当从所述控制器提供的所述控制数据中的相关一个之一输出相关联的一个所述相位累加器的输出，并且当所述控制数据中的相关一个为0时输出0;以及加法器， 的开关。

    Superconducting coil, superconducting magnet, and method of operating superconducting magnet
    15.
    发明授权
    Superconducting coil, superconducting magnet, and method of operating superconducting magnet 有权
    超导线圈，超导磁体和超导磁体的操作方法

    公开(公告)号：US08400747B2

    公开(公告)日：2013-03-19

    申请号：US13181578

    申请日：2011-07-13

    Applicant: Yota Ichiki ,  Tsuyoshi Wakuda ,  Minseok Park

    Inventor： Yota Ichiki ,  Tsuyoshi Wakuda ,  Minseok Park

    IPC: H02H7/00

    CPC classification number: H01F6/02

    Abstract: In a superconducting coil, a parallel conductor includes a plurality of superconducting wires bundled and wound in a coil. The superconducting wires have at least two connections therebetween. A current source connected to the superconducting wires to form a loop via the superconducting wires and the connection to supply a current in the loop when a quench is detected. A superconducting magnet includes the superconducting coil, a persistent current switch connected to the superconducting coil, and a quench detector configured to detect quench occurring in the superconducting coil.

    Abstract translation: 在超导线圈中，并联导体包括多个缠绕在线圈中的超导线。 超导线在其间具有至少两个连接。 连接到超导线的电流源通过超导线和连接来形成环路，以在检测到淬火时提供回路中的电流。 超导磁体包括超导线圈，连接到超导线圈的持续电流开关和配置成检测在超导线圈中发生的淬火的淬火检测器。

    Nuclear magnetic resonance apparatus having a controllable detector
    16.
    发明申请
    Nuclear magnetic resonance apparatus having a controllable detector 失效
    具有可控检测器的核磁共振装置

    公开(公告)号：US20050099182A1

    公开(公告)日：2005-05-12

    申请号：US10919327

    申请日：2004-08-17

    Applicant: Minseok Park ,  Michiya Okada ,  Hiroshi Morita

    Inventor： Minseok Park ,  Michiya Okada ,  Hiroshi Morita

    IPC: G01R33/32 ,  G01R33/36 ,  G01V3/00

    CPC classification number: G01R33/3621

    Abstract: In an NMR apparatus having an analog-to-digital converter for converting the voltage signal V(t) to a digital signal, a reference signal generator for generating reference waves which are digital signals, and a quadrature detector for performing a quadrature detection operation, a detection controller for changing a frequency of or of the reference waves or a time interval of A which is a time interval between data points of digitized NMR signals and also a time interval between data points of the reference waves during detection is installed and furthermore, a storage device for preserving the voltage signal V(t) converted to a digital amount at least until the quadrature detector or the reference signal generator changes the frequency or of the reference waves or the time interval A is installed between the analog-digital converter and the quadrature detector.

    Abstract translation: 在具有用于将电压信号V（t）转换为数字信号的模拟 - 数字转换器的NMR装置中，用于产生作为数字信号的参考波的参考信号发生器和用于执行正交检测操作的正交检测器， 用于改变参考波的频率的检测控制器或作为数字化NMR信号的数据点之间的时间间隔的A的时间间隔以及检测期间参考波的数据点之间的时间间隔的安装， 至少直到正交检测器或参考信号发生器改变频率或参考波，或者将时间间隔A安装在模拟数字转换器和 正交检测器。

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