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1. 发明申请

US20090286478A1 ARRANGEMENT TO TRANSMIT MAGNETIC RESONANCE SIGNALS 有权
标题翻译：发射磁共振信号的安排
公开(公告)号：US20090286478A1
公开(公告)日：2009-11-19
申请号：US12465147
申请日：2009-05-13
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： G01R33/3664 , G01R33/3415 , G01R33/3607 , G01R33/3621 , G01R33/3635
摘要： An arrangement for transmitting magnetic resonance signals, with a transmission link that connects a local coil with a receiver, has a first channel of the local coil with a first single antenna to acquire a first magnetic resonance signal, as well as a first mixer connected with the first single antenna. The first mixer forms an intermediate-frequency first signal from the supplied first magnetic resonance signal. A second channel of the local coil has a second single antenna to acquire a second magnetic resonance signal, as well as a second mixer connected with the second single antenna. The second mixer forms an intermediate-frequency second signal from the supplied second magnetic resonance signal. The local coil has a device for signal combination that, by frequency multiplexing, that combines the intermediate-frequency first signal of the first channel and the intermediate-frequency second signal of the second channel so that it arrives at the receiver via the transmission path. The receiver has an A/D converter at which one of the transmitted intermediate-frequency signals of an associated channel arrives in order to be sampled with a sampling frequency for digitization. For frequency conversion, a first local oscillator frequency is connected at the first mixer and a second local oscillator frequency is connected at the second mixer. the first and second local oscillator frequencies are selected such that intermediate-frequencies formed by the frequency conversion are mirror-symmetrical relative to the sampling frequency of the A/D converter.
摘要翻译：用于传输磁共振信号的装置，具有将本地线圈与接收器连接的传输链路，具有本地线圈的第一通道和第一单个天线以获取第一磁共振信号，以及与第第一单天线。第一混频器从所提供的第一磁共振信号形成中频第一信号。本地线圈的第二通道具有用于获取第二磁共振信号的第二单个天线，以及与第二单个天线连接的第二混频器。第二混频器从所提供的第二磁共振信号形成中频第二信号。本地线圈具有用于信号组合的装置，通过频率复用，组合第一通道的中频第一信号和第二通道的中频第二信号，使得其经由传输路径到达接收器。接收机具有A / D转换器，在该A / D转换器中，相关信道的所发送的中频信号中的一个到达，以便以用于数字化的采样频率进行采样。对于频率转换，在第一混频器处连接第一本地振荡器频率，在第二混频器处连接第二本地振荡器频率。选择第一和第二本地振荡器频率，使得由频率变换形成的中频相对于A / D转换器的采样频率是镜像对称的。

2. 发明授权

US09817089B2 MRI antenna coil selection unit within patient table cable duct 有权
公开(公告)号：US09817089B2
公开(公告)日：2017-11-14
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 , G01R33/3415 , G01R33/36 , G01R33/563
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.

3. 发明授权

US07834628B2 Arrangement to transmit magnetic resonance signals via multiplexed multiplexer reception branches 有权
标题翻译：通过多路复用器接收分支传送磁共振信号的布置
公开(公告)号：US07834628B2
公开(公告)日：2010-11-16
申请号：US12243038
申请日：2008-10-01
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： G01V3/00
CPC分类号： G01R33/3415 , G01R33/3621 , G01R33/3664 , G01R33/3692
摘要： An arrangement to transmit magnetic resonance signals has at least two reception branches. Each reception branch contains a single antenna of a local coil as well as an amplifier connected with the single antenna, such that an amplified magnetic resonance signal is formed from a magnetic resonance signal that is acquired via the single antenna. In a multiplexer, each input is connected with a respective reception branch, such that the amplified magnetic resonance signals of the reception branch are combined by the multiplexer into a resulting signal using a time multiplexing method. A transmission path is connected on one side with an output of the multiplexer and on the other side with a receiver, such that the resulting signal is transmitted from the multiplexer to the receiver via the transmission path.
摘要翻译：传输磁共振信号的装置具有至少两个接收分支。每个接收分支包含本地线圈的单个天线以及与单个天线连接的放大器，使得经由单个天线获取的磁共振信号形成放大的磁共振信号。在多路复用器中，每个输入与相应的接收分支相连，使得接收分支的放大的磁共振信号由多路复用器使用时间复用方法组合成结果信号。传输路径在一侧与多路复用器的输出端连接，另一侧与接收器连接，使得所得到的信号经由传输路径从多路复用器传输到接收器。

4. 发明申请

US20090096455A1 ARRANGEMENT TO TRANSMIT MAGNETIC RESONANCE SIGNALS 有权
标题翻译：发射磁共振信号的安排
公开(公告)号：US20090096455A1
公开(公告)日：2009-04-16
申请号：US12243038
申请日：2008-10-01
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： G01R33/36
CPC分类号： G01R33/3415 , G01R33/3621 , G01R33/3664 , G01R33/3692
摘要： An arrangement to transmit magnetic resonance signals has at least two reception branches. Each reception branch contains a single antenna of a local coil as well as an amplifier connected with the single antenna, such that an amplified magnetic resonance signal is formed from a magnetic resonance signal that is acquired via the single antenna. In a multiplexer, each input is connected with a respective reception branch, such that the amplified magnetic resonance signals of the reception branch are combined by the multiplexer into a resulting signal using a time multiplexing method. A transmission path is connected on one side with an output of the multiplexer and on the other side with a receiver, such that the resulting signal is transmitted from the multiplexer to the receiver via the transmission path.
摘要翻译：传输磁共振信号的装置具有至少两个接收分支。每个接收分支包含本地线圈的单个天线以及与单个天线连接的放大器，使得经由单个天线获取的磁共振信号形成放大的磁共振信号。在多路复用器中，每个输入与相应的接收分支相连，使得接收分支的放大的磁共振信号由多路复用器使用时间复用方法组合成结果信号。传输路径在一侧与多路复用器的输出端连接，另一侧与接收器连接，使得所得到的信号经由传输路径从多路复用器传输到接收器。

5. 发明授权

US08055196B2 Arrangement to transmit magnetic resonance signals 有权
标题翻译：传输磁共振信号的布置
公开(公告)号：US08055196B2
公开(公告)日：2011-11-08
申请号：US12465147
申请日：2009-05-13
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： G01R33/3664 , G01R33/3415 , G01R33/3607 , G01R33/3621 , G01R33/3635
摘要： An arrangement for transmitting magnetic resonance signals, with a transmission link that connects a local coil with a receiver, has a first channel of the local coil with a first single antenna to acquire a first magnetic resonance signal, as well as a first mixer connected with the first single antenna. The first mixer forms an intermediate-frequency first signal from the supplied first magnetic resonance signal. A second channel of the local coil has a second single antenna to acquire a second magnetic resonance signal, as well as a second mixer connected with the second single antenna. The second mixer forms an intermediate-frequency second signal from the supplied second magnetic resonance signal. The local coil has a device for signal combination that, by frequency multiplexing, that combines the intermediate-frequency first signal of the first channel and the intermediate-frequency second signal of the second channel so that it arrives at the receiver via the transmission path. The receiver has an A/D converter at which one of the transmitted intermediate-frequency signals of an associated channel arrives in order to be sampled with a sampling frequency for digitization. For frequency conversion, a first local oscillator frequency is connected at the first mixer and a second local oscillator frequency is connected at the second mixer. the first and second local oscillator frequencies are selected such that intermediate-frequencies formed by the frequency conversion are mirror-symmetrical relative to the sampling frequency of the A/D converter.
摘要翻译：用于传输磁共振信号的装置，具有将本地线圈与接收器连接的传输链路，具有本地线圈的第一通道和第一单个天线以获取第一磁共振信号，以及与第第一单天线。第一混频器从所提供的第一磁共振信号形成中频第一信号。本地线圈的第二通道具有用于获取第二磁共振信号的第二单个天线，以及与第二单个天线连接的第二混频器。第二混频器从所提供的第二磁共振信号形成中频第二信号。本地线圈具有用于信号组合的装置，通过频率复用，组合第一通道的中频第一信号和第二通道的中频第二信号，使得其经由传输路径到达接收器。接收机具有A / D转换器，在该A / D转换器中，相关信道的所发送的中频信号中的一个到达，以便以用于数字化的采样频率进行采样。对于频率转换，在第一混频器处连接第一本地振荡器频率，在第二混频器处连接第二本地振荡器频率。选择第一和第二本地振荡器频率，使得由频率变换形成的中频相对于A / D转换器的采样频率是镜像对称的。

6. 发明授权

US08489025B2 Method for transmitting magnetic resonance signals with double frequency conversion 有权
标题翻译：用双频变频传输磁共振信号的方法
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。

7. 发明申请

US20130162253A1 SELECTION UNIT FOR A MAGNETIC RESONANCE IMAGING SYSTEM 有权
标题翻译：用于磁共振成像系统的选择单元
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。

8. 发明授权

US10663543B2 Device and method for recovering a temporal reference in free-running MR receive chains 有权
公开(公告)号：US10663543B2
公开(公告)日：2020-05-26
申请号：US15951156
申请日：2018-04-11
申请人： Stephan Biber , Jan Bollenbeck , Sven Heggen , Martin Nisznansky , Markus Vester
发明人： Stephan Biber , Jan Bollenbeck , Sven Heggen , Martin Nisznansky , Markus Vester
IPC分类号： G01V3/00 , G01R33/36 , G01R33/3415
摘要： A device for recovering a temporal reference in a free-running magnetic resonance tomography (MRT) receive chain includes a time reference encoder and a time reference decoder. The time reference encoder is configured to generate a modulation signal as a function of a reference clock, where the modulation signal is configured for a correlation with a temporal resolution less than a maximum predetermined phase deviation and a maximum that may clearly be identified. The time reference decoder is configured to receive, via the first signal input, a receive signal as a function of the modulation signal, perform a correlation with a reference signal, and generate a signal as a function of a temporal reference of the modulation signal in the receive signal in relation to the reference signal.

9. 发明授权

US09810752B2 Determination of a type of processing of signals transmitted by local coil 有权
公开(公告)号：US09810752B2
公开(公告)日：2017-11-07
申请号：US14483795
申请日：2014-09-11
申请人： Stephan Biber , Jan Bollenbeck , Markus Vester , JianMin Wang
发明人： Stephan Biber , Jan Bollenbeck , Markus Vester , JianMin Wang
IPC分类号： G01R33/341 , G01R33/54 , G01R33/36 , G01R33/385 , G01R33/3415
CPC分类号： G01R33/341 , G01R33/3415 , G01R33/3621 , G01R33/3664 , G01R33/3852 , G01R33/54
摘要： A method and an apparatus for a magnetic resonance imaging system are provided. A type of further processing of signals transmitted by a local coil to a magnetic resonance imaging (MRI) system is determined in dependence on information received in or from the local coil about a local-coil type of the local coil.

10. 发明授权

US08487622B2 MR signal transmission in a local coil arrangement 有权
标题翻译：局部线圈布置中的MR信号传输
公开(公告)号：US08487622B2
公开(公告)日：2013-07-16
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： G01V3/00
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，形成至少一个局部线圈以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。

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