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    Reception System for Local Coils of a Magnetic Resonance Imaging System
    54.
    发明申请
    Reception System for Local Coils of a Magnetic Resonance Imaging System 审中-公开
    磁共振成像系统局部线圈接收系统

    公开(公告)号：US20150285887A1

    公开(公告)日：2015-10-08

    申请号：US14670817

    申请日：2015-03-27

    Applicant: Jan Bollenbeck

    Inventor： Jan Bollenbeck

    IPC: G01R33/56 ,  G01R33/385 ,  G01R33/36

    CPC classification number: G01R33/56 ,  G01R33/3621 ,  G01R33/385

    Abstract: An apparatus, a magnetic resonance imaging system, and a method of use are provided for a reception system for transmitting magnetic resonance signals from local coils to an image processing unit of a magnetic resonance imaging system. The apparatus includes an analog receiver for receiving and processing analog signals from the local coils that is configured to directly sample analog signals having different individual frequency bands and/or frequency band pairs, to distinguish the analog signals and to process them differently. The apparatus also includes an A/D converter for converting the processed analog signals from the local coils into digital signals. The apparatus further includes a digital signal processor for processing the digital signals, wherein the digital signal processor includes a Weaver unit and a downstream decimation filter unit.

    Abstract translation: 提供了一种用于将磁共振信号从局部线圈发送到磁共振成像系统的图像处理单元的接收系统的装置，磁共振成像系统和使用方法。 该装置包括用于接收和处理来自本地线圈的模拟信号的模拟接收器，其被配置为直接采样具有不同单独频带和/或频带对的模拟信号，以区分模拟信号并对它们进行不同的处理。 该装置还包括用于将来自本地线圈的处理的模拟信号转换成数字信号的A / D转换器。 该装置还包括用于处理数字信号的数字信号处理器，其中数字信号处理器包括韦弗单元和下游抽取滤波器单元。

    Preprocessing circuit for receive signals of a local coil
    56.
    发明授权
    Preprocessing circuit for receive signals of a local coil 有权
    用于本地线圈接收信号的预处理电路

    公开(公告)号：US08866482B2

    公开(公告)日：2014-10-21

    申请号：US13183065

    申请日：2011-07-14

    Applicant: Jan Bollenbeck ,  Ralph Oppelt

    Inventor： Jan Bollenbeck ,  Ralph Oppelt

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

    CPC classification number: G01R33/3621 ,  A61B5/055

    Abstract: A preprocessing circuit for receive signals of a local coil in a magnetic resonance facility (1) includes an arrangement for supplying at least one auxiliary frequency signal of an auxiliary frequency. For at least one or the auxiliary frequency signal, a frequency multiplier generates the auxiliary frequency signal from an intermediate signal transmitted from a receive system of the magnetic resonance facility by way of a transmission link. The multiplier generates the auxiliary frequency signal with a frequency corresponding to a whole-number fraction of the auxiliary frequency.

    Abstract translation: 用于在磁共振设备（1）中本地线圈的接收信号的预处理电路包括用于提供辅助频率的至少一个辅助频率信号的装置。 对于至少一个或辅助频率信号，倍频器通过传输链路从由磁共振设备的接收系统发送的中间信号产生辅助频率信号。 乘法器产生具有对应于辅助频率的全分数的频率的辅助频率信号。

    Arrangement for the Transmission of Magnetic Resonance Signals
    57.
    发明申请
    Arrangement for the Transmission of Magnetic Resonance Signals 有权
    磁共振信号传输的布置

    公开(公告)号：US20140062480A1

    公开(公告)日：2014-03-06

    申请号：US14018139

    申请日：2013-09-04

    Applicant: Jan Bollenbeck ,  Ralph Oppelt ,  Markus Vester

    Inventor： Jan Bollenbeck ,  Ralph Oppelt ,  Markus Vester

    IPC: G01R33/54

    CPC classification number: G01R33/54 ,  G01R33/3415 ,  G01R33/3621 ,  G01R33/3692

    Abstract: An arrangement for the transmission of magnetic resonance signals that are received with the aid of local coils is provided. The magnetic resonance signal is fed to an analog/digital converter and digitized by the analog/digital converter. The magnetic resonance signal is compressed in amplitude before being fed to the analog/digital converter, is low-pass filtered or band-pass filtered, and is expanded after digitization by the analog/digital converter. A clock rate that is higher by a factor 2n than a sampling rate n of the analog/digital converter (ADC) is used for the digital expander. A digital equalizing filter for compensating for a filter transmission function in a transition range may also be used.

    Abstract translation: 提供了借助于本地线圈接收的用于传输磁共振信号的装置。 磁共振信号被馈送到模拟/数字转换器并由模拟/数字转换器数字化。 在馈送到模拟/数字转换器之前，磁共振信号以幅度被压缩，被低通滤波或带通滤波，并且在通过模拟/数字转换器数字化之后被扩展。 数字扩展器使用比模拟/数字转换器（ADC）的采样率n高2n倍的时钟速率。 也可以使用用于补偿过渡范围内的过滤器传递功能的数字均衡滤波器。

    DETUNING APPARATUS FOR A RECEIVE COIL FOR A MAGNETIC RESONANCE DEVICE INCLUDING A NUMBER OF COIL ELEMENTS
    58.
    发明申请
    DETUNING APPARATUS FOR A RECEIVE COIL FOR A MAGNETIC RESONANCE DEVICE INCLUDING A NUMBER OF COIL ELEMENTS 有权
    用于包含多个线圈元件的磁共振装置的接收线圈的解除装置

    公开(公告)号：US20130241556A1

    公开(公告)日：2013-09-19

    申请号：US13605928

    申请日：2012-09-06

    Applicant: Jan Bollenbeck ,  Klaus Porzelt ,  Wilfried Schnell

    Inventor： Jan Bollenbeck ,  Klaus Porzelt ,  Wilfried Schnell

    IPC: G01R33/36

    CPC classification number: G01R33/3664 ,  G01R33/3415 ,  G01R33/3657

    Abstract: A detuning apparatus for a receive coil for a magnetic resonance device includes a number of coil elements. The coil elements may be selectively connected to a receive channel of a data processing apparatus by way of a switching apparatus. Each of the coil elements includes at least one detuning assembly such as, for example, a PIN diode that may be switched between a detuning state and a receive state by way of a continuous switching signal. A controller is provided to switch the switching apparatus and to generate the switching signals. The detuning apparatus has first diplexers connected upstream of the switching apparatus for injecting switching signals for switching the detuning assembly for coil elements to be detuned dynamically. The detuning apparatus also includes detuning modules for each of the coil elements to switch the detuning assembly to the detuning state if there is no switching signal present.

    Abstract translation: 用于磁共振装置的接收线圈的失谐装置包括多个线圈元件。 线圈元件可以通过开关装置选择性地连接到数据处理装置的接收通道。 每个线圈元件包括至少一个失谐组件，例如PIN二极管，其可以通过连续切换信号在失谐状态和接收状态之间切换。 提供控制器来切换开关装置并产生开关信号。 失调装置具有连接在开关装置上游的第一双工器，用于注入开关信号，用于切换用于线圈元件的失谐组件以便动态失谐。 失调装置还包括用于每个线圈元件的失谐模块，以便在不存在切换信号的情况下将失谐组件切换到失谐状态。

    MR signal transmission in a local coil arrangement
    59.
    发明授权
    MR signal transmission in a local coil arrangement 有权
    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

    Applicant: Stephan Biber ,  Jan Bollenbeck ,  Markus Vester

    Inventor： Stephan Biber ,  Jan Bollenbeck ,  Markus Vester

    IPC: G01V3/00

    CPC classification number: G01R33/3692 ,  G01R33/341 ,  G01R33/3415 ,  G01R33/3621 ,  G01R33/422

    Abstract: 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.

    Abstract translation: 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。

    PREPROCESSING CIRCUIT FOR RECEIVE SIGNALS OF A LOCAL COIL
    60.
    发明申请
    PREPROCESSING CIRCUIT FOR RECEIVE SIGNALS OF A LOCAL COIL 有权
    用于本地线圈接收信号的预处理电路

    公开(公告)号：US20120020259A1

    公开(公告)日：2012-01-26

    申请号：US13183065

    申请日：2011-07-14

    Applicant: Jan Bollenbeck ,  Ralph Oppelt

    Inventor： Jan Bollenbeck ,  Ralph Oppelt

    IPC: H04J1/00 ,  H04L5/00

    CPC classification number: G01R33/3621 ,  A61B5/055

    Abstract: A preprocessing circuit for receive signals of a local coil in a magnetic resonance facility (1) includes an arrangement for supplying at least one auxiliary frequency signal of an auxiliary frequency. For at least one or the auxiliary frequency signal, a frequency multiplier generates the auxiliary frequency signal from an intermediate signal transmitted from a receive system of the magnetic resonance facility by way of a transmission link. The multiplier generates the auxiliary frequency signal with a frequency corresponding to a whole-number fraction of the auxiliary frequency.

    Abstract translation: 用于在磁共振设备（1）中本地线圈的接收信号的预处理电路包括用于提供辅助频率的至少一个辅助频率信号的装置。 对于至少一个或辅助频率信号，倍频器通过传输链路从由磁共振设备的接收系统发送的中间信号产生辅助频率信号。 乘法器产生具有对应于辅助频率的全分数的频率的辅助频率信号。

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