公开(公告)号：US08489025B2

公开(公告)日：2013-07-16

申请号：US13069272

申请日：2011-03-22

申请人： Stephan Biber ,  Jan Bollenbeck ,  Ralph Oppelt ,  Markus Vester

发明人： Stephan Biber ,  Jan Bollenbeck ,  Ralph Oppelt ,  Markus Vester

IPC分类号： H04B7/00

CPC分类号： G01R33/36 ,  G01R33/3621

摘要： Front bandpass filters that are essentially transmissive only between a minimum frequency and a maximum frequency filter the magnetic resonance signals. Front frequency mixers mix output signals of each of the bandpass filters with a front LO frequency that is standard for all the magnetic resonance signals. Rear bandpass filters that are essentially transmissive only around a front intermediate frequency filter the output signals of the front frequency mixers. Rear frequency mixers mix output signals of each of the rear bandpass filters with a respective constant rear LO frequency. Frequency filters that are transmissive for frequencies in the range of the difference of the rear LO frequency that is supplied to the rear frequency mixer arranged upstream thereof and the front intermediate frequency filter the output signals of the rear frequency mixers. Output signals of the frequency filters are combined into a common signal, which is transmitted onward.

摘要翻译： 仅在最小频率和最大频率之间基本上透射的前带通滤波器对磁共振信号进行滤波。 前置混频器将每个带通滤波器的输出信号与前置的LO频率混合，这是所有磁共振信号的标准。 后置带通滤波器，其基本上仅在前置中频上滤波前频率混频器的输出信号。 后混频器将每个后带通滤波器的输出信号与相应的恒定后置LO频率混合。 频率滤波器对于提供给布置在其上游的后部混频器的后部LO频率的差异范围内的频率以及前部中频滤波器的后部混频器的输出信号的频率进行透射。 频率滤波器的输出信号被组合成公共信号，该公共信号向前发送。

公开(公告)号：US20130162253A1

公开(公告)日：2013-06-27

申请号：US13722606

申请日：2012-12-20

申请人： Stephan Biber ,  Jan Bollenbeck ,  Ralph Oppelt ,  Georg Rauh ,  Wilfried Schnell ,  Markus Vester

发明人： Stephan Biber ,  Jan Bollenbeck ,  Ralph Oppelt ,  Georg Rauh ,  Wilfried Schnell ,  Markus Vester

IPC分类号： G01R33/30

CPC分类号： G01R33/30 ,  G01R33/3415 ,  G01R33/3664 ,  G01R33/56383

摘要： A selection unit for a magnetic resonance imaging system may be provided. The selection unit electrically connects a first number of electrical terminals to a second number of communication entities. The selection unit is arranged in and/or on a mobile object-support element for moving an examination object which is to be depicted by the magnetic resonance imaging system into a recording position.

摘要翻译： 可以提供用于磁共振成像系统的选择单元。 选择单元将第一数量的电端子电连接到第二数量的通信实体。 选择单元布置在移动物体支撑元件中和/或上，用于将要由磁共振成像系统描绘的检查对象移动到记录位置。

公开(公告)号：US20110109315A1

公开(公告)日：2011-05-12

申请号：US12893286

申请日：2010-09-29

申请人： Stephan Biber ,  Jan Bollenbeck ,  Markus Vester

发明人： Stephan Biber ,  Jan Bollenbeck ,  Markus Vester

IPC分类号： G01R33/44

CPC分类号： G01R33/3692 ,  G01R33/341 ,  G01R33/3415 ,  G01R33/3621 ,  G01R33/422

摘要： In a magnetic resonance tomography local coil arrangement and a method for processing signals received thereby at least one local coil is fashioned to receive at least one reception signal and at least one amplifier is provided that amplifies the at least one reception signal. A frequency converter generates at least one intermediate frequency signal from the at least one reception signal the intermediate frequency of the intermediate frequency signal differing from the reception signal frequency of each reception signal. An analog-digital converter converts the analog intermediate frequency signal into a digitized signal. A shielding device shields against at least radio-frequency signals, the shielding device surrounding at least the analog-digital converter. At least one frequency filter is arranged between the at least one local coil and the analog-digital converter, the frequency filter exhibiting a transmission range for signals with the intermediate frequency of an intermediate frequency signal. The digitized signal is transmitted from the local coil arrangement.

摘要翻译： 在磁共振断层摄影局部线圈装置和用于处理由此接收的信号的方法中，至少一个局部线圈被形成为接收至少一个接收信号，并且提供放大至少一个接收信号的至少一个放大器。 变频器从至少一个接收信号产生至少一个中频信号，该中频信号与每个接收信号的接收信号频率不同。 模拟数字转换器将模拟中频信号转换为数字化信号。 屏蔽装置至少屏蔽射频信号，屏蔽装置至少围绕模拟数字转换器。 在至少一个本地线圈和模数转换器之间布置至少一个频率滤波器，该频率滤波器对于具有中频信号的中频的信号呈现传输范围。 数字化信号从本地线圈装置发送。

公开(公告)号：US10338182B2

公开(公告)日：2019-07-02

申请号：US14657852

申请日：2015-03-13

申请人： Stephan Biber ,  Jan Bollenbeck

发明人： Stephan Biber ,  Jan Bollenbeck

IPC分类号： G01R33/36 ,  G01R33/54 ,  G01R33/58

摘要： A receiver assembly of a magnetic resonance (MR) system for generating MR recordings of an examination object includes a plurality of reception channels for receiving and amplifying MR signals from reception coils of the MR system connected therewith. A calibration data memory for storing calibration data for the plurality of reception channels is arranged on the receiver assembly. The receiver assembly includes a data link for transmitting the calibration data to the MR system.

公开(公告)号：US20150260821A1

公开(公告)日：2015-09-17

申请号：US14657852

申请日：2015-03-13

申请人： Stephan Biber ,  Jan Bollenbeck

发明人： Stephan Biber ,  Jan Bollenbeck

IPC分类号： G01R33/58 ,  G01R33/34 ,  G01R33/54 ,  G01R33/30

CPC分类号： G01R33/583 ,  G01R33/3621 ,  G01R33/543

摘要： A receiver assembly of a magnetic resonance (MR) system for generating MR recordings of an examination object includes a plurality of reception channels for receiving and amplifying MR signals from reception coils of the MR system connected therewith. A calibration data memory for storing calibration data for the plurality of reception channels is arranged on the receiver assembly. The receiver assembly includes a data link for transmitting the calibration data to the MR system.

摘要翻译： 用于产生检查对象的MR记录的磁共振（MR）系统的接收器组件包括用于从与其连接的MR系统的接收线圈接收和放大MR信号的多个接收通道。 用于存储多个接收通道的校准数据的校准数据存储器被布置在接收器组件上。 接收器组件包括用于将校准数据发送到MR系统的数据链路。

公开(公告)号：US20160077174A1

公开(公告)日：2016-03-17

申请号：US14842033

申请日：2015-09-01

申请人： Stephan Biber ,  Jan Bollenbeck

发明人： Stephan Biber ,  Jan Bollenbeck

IPC分类号： G01R33/36

CPC分类号： G01R33/3621 ,  G01R33/3664

摘要： The embodiments relate to a method and a receiving system for an imaging magnetic resonance tomography system. The receiving system includes at least one multiplexer entity for a plurality of receive signals, which respectively come from an antenna of a local coil and may be switched to an analog-digital converter, wherein sampling rates (e.g., 20 MS/s per Ch, 40 MS/s per Ch, 80 MS/s per Ch) of an analog-digital converter for the sampling of a receive signal may be changed.

摘要翻译： 实施例涉及用于成像磁共振断层摄影系统的方法和接收系统。 接收系统包括用于多个接收信号的至少一个多路复用器实体，其分别来自本地线圈的天线并且可以切换到模数转换器，其中采样速率（例如，每个Ch的20MS / s， 可以改变用于接收信号采样的模拟数字转换器的每个Ch的40MS / s，每个Ch的80MS / s）。

公开(公告)号：US10481227B2

公开(公告)日：2019-11-19

申请号：US15585769

申请日：2017-05-03

申请人： Stephan Biber ,  Jan Bollenbeck ,  Martin Hemmerlein

发明人： Stephan Biber ,  Jan Bollenbeck ,  Martin Hemmerlein

IPC分类号： G01R33/36 ,  G01R33/385 ,  G01R33/3815 ,  H03H7/42

摘要： A transmission apparatus for transmitting an intermediate frequency signal and an oscillator signal for mixing down the intermediate frequency signal, a magnetic resonance tomograph with a local coil, a receive unit, and a transmission apparatus are provided. The transmission apparatus has a symmetrical transmission line for transmission of the oscillator signal and the intermediate frequency signal and a symmetrizing element for adaptation of an unsymmetrical signal source and/or signal sink to the symmetrical transmission line. The symmetrizing element has only ferrite-free inductances. The local coil and the receive unit are connected for signaling purposes via the transmission apparatus.

公开(公告)号：US10101418B2

公开(公告)日：2018-10-16

申请号：US14842033

申请日：2015-09-01

申请人： Stephan Biber ,  Jan Bollenbeck

发明人： Stephan Biber ,  Jan Bollenbeck

IPC分类号： G01R33/36

摘要： The embodiments relate to a method and a receiving system for an imaging magnetic resonance tomography system. The receiving system includes at least one multiplexer entity for a plurality of receive signals, which respectively come from an antenna of a local coil and may be switched to an analog-digital converter, wherein sampling rates (e.g., 20 MS/s per Ch, 40 MS/s per Ch, 80 MS/s per Ch) of an analog-digital converter for the sampling of a receive signal may be changed.

公开(公告)号：US20170322267A1

公开(公告)日：2017-11-09

申请号：US15585769

申请日：2017-05-03

申请人： Stephan Biber ,  Jan Bollenbeck ,  Martin Hemmerlein

发明人： Stephan Biber ,  Jan Bollenbeck ,  Martin Hemmerlein

IPC分类号： G01R33/36 ,  G01R33/385 ,  G01R33/3815

CPC分类号： G01R33/3621 ,  G01R33/3815 ,  G01R33/385 ,  H03H7/42

摘要： A transmission apparatus for transmitting an intermediate frequency signal and an oscillator signal for mixing down the intermediate frequency signal, a magnetic resonance tomograph with a local coil, a receive unit, and a transmission apparatus are provided. The transmission apparatus has a symmetrical transmission line for transmission of the oscillator signal and the intermediate frequency signal and a symmetrizing element for adaptation of an unsymmetrical signal source and/or signal sink to the symmetrical transmission line. The symmetrizing element has only ferrite-free inductances. The local coil and the receive unit are connected for signaling purposes via the transmission apparatus.

公开(公告)号：US09297868B2

公开(公告)日：2016-03-29

申请号：US13277006

申请日：2011-10-19

申请人： Stephan Biber ,  Jürgen Nistler ,  Markus Vester

发明人： Stephan Biber ,  Jürgen Nistler ,  Markus Vester

IPC分类号： G01R33/34 ,  G01R33/36 ,  G01R33/3415

CPC分类号： G01R33/3607 ,  G01R33/3415 ,  G01R33/3621

摘要： The present embodiments include an antenna circuit that is adapted to supply and/or read out a plurality of antenna elements of an antenna assembly of a magnetic resonance imaging system. The antenna elements are decoupled by phase shifter elements and supplied with signals by the phase shifter elements. The antenna circuit may also be used to detect signals that are received by the antenna elements.

摘要翻译： 本实施例包括适于提供和/或读出磁共振成像系统的天线组件的多个天线元件的天线电路。 天线元件由移相器元件解耦并由移相器元件提供信号。 天线电路还可以用于检测由天线元件接收的信号。