Arrangement for processing a non-symmetrical and a symmetrical signal
    1.
    发明授权
    Arrangement for processing a non-symmetrical and a symmetrical signal 有权
    用于处理非对称和对称信号的布置

    公开(公告)号:US08526902B2

    公开(公告)日:2013-09-03

    申请号:US13416769

    申请日:2012-03-09

    IPC分类号: H04B7/00

    摘要: An arrangement for processing a non-symmetrical signal includes an apparatus configured to balance and filter an image frequency of a nominal frequency of the non-symmetrical receiving signal. The apparatus includes a modified Boucherot bridge having a series or parallel oscillating circuit that replaces inductive or capacitive components of a conventional Boucherot bridge, such that the modified Boucherot bridge is in the harmonized state with the image frequency to be faded out and has a predetermined impedance with the nominal frequency on its symmetrical output terminals. The nominal frequency has a predetermined impedance on its symmetrical output terminals. The nominal frequency is transmitted as a signal balanced to ground to the symmetrical output terminals of the modified Boucherot bridge.

    摘要翻译: 用于处理非对称信号的装置包括被配置为平衡和过滤非对称接收信号的标称频率的图像频率的装置。 该装置包括具有串联或并联振荡电路的经修改的Boucherot桥,该电路代替常规Boucherot桥的电感或电容分量,使得经修改的Boucherot桥处于协调状态,图像频率将被淡出并具有预定阻抗 标称频率在其对称输出端子上。 标称频率在其对称输出端子上具有预定的阻抗。 标称频率作为平衡到地面的信号传输到改进的Boucherot桥的对称输出端子。

    ARRANGEMENT FOR PROCESSING A NON-SYMMETRICAL AND A SYMMETRICAL SIGNAL
    2.
    发明申请
    ARRANGEMENT FOR PROCESSING A NON-SYMMETRICAL AND A SYMMETRICAL SIGNAL 有权
    用于处理非对称和对称信号的布置

    公开(公告)号:US20130063221A1

    公开(公告)日:2013-03-14

    申请号:US13416769

    申请日:2012-03-09

    IPC分类号: H03H7/42

    摘要: An arrangement for processing a non-symmetrical signal includes an apparatus configured to balance and filter an image frequency of a nominal frequency of the non-symmetrical receiving signal. The apparatus includes a modified Boucherot bridge having a series or parallel oscillating circuit that replaces inductive or capacitive components of a conventional Boucherot bridge, such that the modified Boucherot bridge is in the harmonized state with the image frequency to be faded out and has a predetermined impedance with the nominal frequency on its symmetrical output terminals. The nominal frequency has a predetermined impedance on its symmetrical output terminals. The nominal frequency is transmitted as a signal balanced to ground to the symmetrical output terminals of the modified Boucherot bridge.

    摘要翻译: 用于处理非对称信号的装置包括被配置为平衡和过滤非对称接收信号的标称频率的图像频率的装置。 该装置包括具有串联或并联振荡电路的经修改的Boucherot桥,该电路代替常规Boucherot桥的电感或电容分量,使得经修改的Boucherot桥处于协调状态,图像频率将被淡出并具有预定阻抗 标称频率在其对称输出端子上。 标称频率在其对称输出端子上具有预定的阻抗。 标称频率作为平衡到地面的信号传输到改进的Boucherot桥的对称输出端子。

    MAGNETIC RESONANCE DEVICE HAVING A MOTION DETECTION UNIT AND A METHOD FOR DETECTING A MOVEMENT OF A PATIENT DURING A MAGNETIC RESONANCE EXAMINATION
    4.
    发明申请
    MAGNETIC RESONANCE DEVICE HAVING A MOTION DETECTION UNIT AND A METHOD FOR DETECTING A MOVEMENT OF A PATIENT DURING A MAGNETIC RESONANCE EXAMINATION 审中-公开
    具有运动检测单元的磁共振装置和用于检测磁共振检查期间患者运动的方法

    公开(公告)号:US20150320342A1

    公开(公告)日:2015-11-12

    申请号:US14706744

    申请日:2015-05-07

    摘要: A magnetic resonance device includes a radiofrequency unit that includes a radiofrequency antenna, at least one radiofrequency line and at least one radiofrequency injection point. Radiofrequency signals are transferred to the radiofrequency antenna by the at least one radiofrequency line and are coupled into the radiofrequency antenna at the at least one radiofrequency injection point. The magnetic resonance device also includes a patient receiving zone that is at least partially enclosed by the radiofrequency antenna, and a motion detection unit for detecting a movement of a patient that may be positioned within the patient receiving zone. At least one radiofrequency line includes at least one injection element by which at least one motion detection signal of the motion detection unit is coupled into the radiofrequency line.

    摘要翻译: 磁共振装置包括射频单元,其包括射频天线,至少一个射频线和至少一个射频注入点。 射频信号由至少一个射频线路传送到射频天线,并且在至少一个射频注入点处耦合到射频天线。 磁共振装置还包括至少部分地由射频天线包围的患者接收区域,以及用于检测可位于患者接收区域内的患者的运动的运动检测单元。 至少一个射频线包括至少一个注入元件,通过该注入元件将运动检测单元的至少一个运动检测信号耦合到射频线中。

    DETUNING A MRT RECEIVE ANTENNA
    6.
    发明申请
    DETUNING A MRT RECEIVE ANTENNA 审中-公开
    拆除地铁接收天线

    公开(公告)号:US20160320465A1

    公开(公告)日:2016-11-03

    申请号:US15131201

    申请日:2016-04-18

    IPC分类号: G01R33/36

    CPC分类号: G01R33/3657 G01R33/341

    摘要: An arrangement for detuning a receive antenna, a detunable magnetic resonance coil, and a magnetic resonance device having a detunable magnetic resonance coil are provided. The arrangement includes a receive antenna having at least one first capacitance, wherein radiofrequency signals from a magnetic resonance examination may be received by way of the receive antenna. The arrangement furthermore includes a switchable detuning circuit containing the first capacitance switched to form an oscillating circuit and a first inductance, and a switching device having a first and a second connection point to deliver a voltage between the first and a second connection point, and one or more transistors. The switching device switches the oscillating circuit to a high impedance level with aid of the one or more transistors on delivery of a positive voltage to the first connection point, preventing a radiofrequency signal from being received by way of the receive antenna.

    摘要翻译: 提供了一种用于使接收天线失谐的装置,不可恢复的磁共振线圈和具有不可恢复的磁共振线圈的磁共振装置。 该装置包括具有至少一个第一电容的接收天线,其中可以通过接收天线接收来自磁共振检查的射频信号。 该装置还包括可切换的失谐电路,其包含切换以形成振荡电路的第一电容和第一电感,以及具有第一和第二连接点以在第一和第二连接点之间传递电压的开关装置,以及一个 或更多的晶体管。 开关装置在将正电压传送到第一连接点的同时,通过一个或多个晶体管的帮助将振荡电路切换到高阻抗水平,防止射频信号通过接收天线被接收。

    Coil System for a Magnetic Resonance Tomography System
    7.
    发明申请
    Coil System for a Magnetic Resonance Tomography System 有权
    用于磁共振层析成像系统的线圈系统

    公开(公告)号:US20130331269A1

    公开(公告)日:2013-12-12

    申请号:US13915486

    申请日:2013-06-11

    IPC分类号: G01R33/34

    摘要: A coil system for a magnetic resonance tomography system includes a plurality of coils for sending and/or receiving high-frequency signals. The plurality of coils is disposed in a receiving chamber between a tomography magnet and a lining of an opening in the tomography magnet and may be cooled by a cooling apparatus. When the coil system is in an operating state, the receiving chamber is filled with a cryogenic cooling medium.

    摘要翻译: 用于磁共振断层摄影系统的线圈系统包括用于发送和/或接收高频信号的多个线圈。 多个线圈被布置在断层摄影磁体和层析成像磁体中的开口的衬里之间的接收室中,并且可以由冷却装置冷却。 当线圈系统处于操作状态时,接收室中充满低温冷却介质。

    Detuning a MRT receive antenna
    8.
    发明授权

    公开(公告)号:US10145912B2

    公开(公告)日:2018-12-04

    申请号:US15131201

    申请日:2016-04-18

    IPC分类号: G01R33/36 G01R33/341

    摘要: An arrangement for detuning a receive antenna, a detunable magnetic resonance coil, and a magnetic resonance device having a detunable magnetic resonance coil are provided. The arrangement includes a receive antenna having at least one first capacitance, wherein radiofrequency signals from a magnetic resonance examination may be received by way of the receive antenna. The arrangement furthermore includes a switchable detuning circuit containing the first capacitance switched to form an oscillating circuit and a first inductance, and a switching device having a first and a second connection point to deliver a voltage between the first and a second connection point, and one or more transistors. The switching device switches the oscillating circuit to a high impedance level with aid of the one or more transistors on delivery of a positive voltage to the first connection point, preventing a radiofrequency signal from being received by way of the receive antenna.