公开(公告)号：US20150331074A1

公开(公告)日：2015-11-19

申请号：US14716552

申请日：2015-05-19

Applicant: Stephan Biber ,  Ralph Oppelt

Inventor： Stephan Biber ,  Ralph Oppelt

IPC: G01R33/36

CPC classification number: G01R33/36 ,  G01R33/341 ,  G01R33/3642

Abstract: A magnetic resonance imaging (MRI) system connection for a magnetic resonance imaging system, such as for an MRI local coil and/or patient couch, is provided. The MRI system connection is embodied with devices for a field-coupled transmission of signals.

Abstract translation: 提供了用于磁共振成像系统的磁共振成像（MRI）系统连接，例如用于MRI局部线圈和/或患者沙发。 MRI系统连接具有用于信号的场耦合传输的装置。

公开(公告)号：US09134392B2

公开(公告)日：2015-09-15

申请号：US12902185

申请日：2010-10-12

Applicant: James Frank Caruba ,  Ralf Ladebeck ,  Ralph Oppelt ,  Patanit Sanpitak

Inventor： James Frank Caruba ,  Ralf Ladebeck ,  Ralph Oppelt ,  Patanit Sanpitak

IPC: A61B6/00 ,  G01R33/48

CPC classification number: G01R33/481

Abstract: Timing in a medical imaging system. The system comprises a magnetic resonance imaging (MRI) subsystem and a non-MRI subsystem. Operation of the non-MRI subsystem involves a timing signal within a radio frequency (RF) cabin of the MRI subsystem. Basing each non-MRI subsystem timing signal on a time base common between the MRI subsystem and the non-MRI subsystem. The non-MRI subsystem can be a medical imaging subsystem. The non-MRI medical imaging subsystem can be a positron emission tomography (PET) subsystem. Each non-MRI subsystem timing signal that based on the common time base can be created using the same model of equipment used for creating timing signals in the MRI subsystem. At least one stage of the non-MRI subsystem timing signal based on the common time base can be created using the same equipment used for creating timing signals in the MRI subsystem.

Abstract translation: 医学影像系统的时间安排 该系统包括磁共振成像（MRI）子系统和非MRI子系统。 非MRI子系统的操作涉及MRI子系统的射频（RF）舱内的定时信号。 在MRI子系统和非MRI子系统之间共同的时基上，按照每个非MRI子系统定时信号。 非MRI子系统可以是医学成像子系统。 非MRI医学成像子系统可以是正电子发射断层摄影（PET）子系统。 可以使用与用于在MRI子系统中创建定时信号相同的设备模型来创建基于公共时基的每个非MRI子系统定时信号。 可以使用用于在MRI子系统中创建定时信号的相同设备来创建基于公共时基的非MRI子系统定时信号的至少一个阶段。

公开(公告)号：US20140218094A1

公开(公告)日：2014-08-07

申请号：US14170606

申请日：2014-02-01

Applicant: Ralph Oppelt

Inventor： Ralph Oppelt

IPC: H03K12/00

CPC classification number: H03K12/00

Abstract: A method for converting a sine wave signal into a square wave signal includes inputting the sine wave signal at an input of a threshold-value device that generates the square wave signal. The square wave signal is generated by comparing a sine wave signal value to a predefined threshold value, and the square wave signal is output at an output of the threshold-value device. An actuating signal is superposed on the sine wave signal at the input of the threshold-value device. The actuating signal is generated by forming an average-value signal representing an average value of the square wave signal and inputting the average-value signal at an input of a control amplifier device for generating, as the actuating signal, a signal representing a difference between an average-value signal actual value and a predefined average-value signal nominal value.

Abstract translation: 用于将正弦波信号转换成方波信号的方法包括在产生方波信号的阈值装置的输入端输入正弦波信号。 通过将正弦波信号值与预定义的阈值进行比较来生成方波信号，并且在阈值装置的输出处输出方波信号。 启动信号叠加在阈值装置输入端的正弦波信号上。 通过形成表示方波信号的平均值的平均值信号并在控制放大器装置的输入端输入平均值信号来生成致动信号，作为致动信号，生成表示 平均值信号实际值和预定义的平均值信号标称值。

公开(公告)号：US08489025B2

公开(公告)日：2013-07-16

申请号：US13069272

申请日：2011-03-22

Applicant: Stephan Biber ,  Jan Bollenbeck ,  Ralph Oppelt ,  Markus Vester

Inventor： Stephan Biber ,  Jan Bollenbeck ,  Ralph Oppelt ,  Markus Vester

IPC: H04B7/00

CPC classification number: G01R33/36 ,  G01R33/3621

Abstract: 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.

Abstract translation: 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

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

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

IPC: G01R33/30

CPC classification number: G01R33/30 ,  G01R33/3415 ,  G01R33/3664 ,  G01R33/56383

Abstract: 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.

Abstract translation: 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：US20120235723A1

公开(公告)日：2012-09-20

申请号：US13230627

申请日：2011-09-12

Applicant: Ralph Oppelt

Inventor： Ralph Oppelt

IPC: H03K12/00

CPC classification number: H03K5/086 ,  H03K5/1565

Abstract: A circuit for providing an AC signal includes an amplifier having an input and an output. A sinusoidal signal is applicable at the input of the amplifier. The output of the amplifier is connected to the input via a lowpass filter or via a part of the lowpass filter.

Abstract translation: 用于提供AC信号的电路包括具有输入和输出的放大器。 正弦信号可应用于放大器的输入端。 放大器的输出通过低通滤波器或低通滤波器的一部分连接到输入端。

公开(公告)号：US08217657B2

公开(公告)日：2012-07-10

申请号：US12616855

申请日：2009-11-12

Applicant: Ralph Oppelt

Inventor： Ralph Oppelt

IPC: G01V3/00 ,  H03H7/38

CPC classification number: H03H7/463 ,  H03H7/38

Abstract: A diplex filter is formed by two impedance-transforming filters with separate transmission frequency ranges and with separate cut-off frequency ranges and a connection node at which two series elements of the two filters are connected. These two series elements are each fashioned as a parallel oscillating circuit, each parallel oscillating circuit exhibiting a predetermined reactance in a midband of the respective transmission frequency range and a parallel resonance in a midband of the respective cut-off frequency range. The diplex filter can be realized in a simple and cost-effective manner without ferrite-containing special components, for instance inductively coupled coils or tapped coils thereby allowing use thereof in a magnetic resonance tomograph, for example.

Abstract translation: 双工滤波器由具有单独的传输频率范围和分离的截止频率范围的两个阻抗变换滤波器以及两个滤波器的两个串联元件连接的连接节点形成。 这两个串联元件各自被形成为并联振荡电路，每个并联振荡电路在相应的发送频率范围的中间带中呈现预定的电抗，并且在相应截止频率范围的中间带中呈现并联谐振。 双工滤波器可以以简单且成本有效的方式实现，不含铁素体的特殊部件，例如电感耦合线圈或抽头线圈，从而允许在例如磁共振断层扫描仪中使用它们。

公开(公告)号：US20120089007A1

公开(公告)日：2012-04-12

申请号：US12902185

申请日：2010-10-12

Applicant: James Frank Caruba ,  Ralf Ladebeck ,  Ralph Oppelt ,  Patanit Sanpitak

Inventor： James Frank Caruba ,  Ralf Ladebeck ,  Ralph Oppelt ,  Patanit Sanpitak

IPC: A61B5/055

CPC classification number: G01R33/481

Abstract: Timing in a medical imaging system. The system comprises a magnetic resonance imaging (MRI) subsystem and a non-MRI subsystem. Operation of the non-MRI subsystem involves a timing signal within a radio frequency (RF) cabin of the MRI subsystem. Basing each non-MRI subsystem timing signal on a time base common between the MRI subsystem and the non-MRI subsystem. The non-MRI subsystem can be a medical imaging subsystem. The non-MRI medical imaging subsystem can be a positron emission tomography (PET) subsystem. Each non-MRI subsystem timing signal that based on the common time base can be created using the same model of equipment used for creating timing signals in the MRI subsystem. At least one stage of the non-MRI subsystem timing signal based on the common time base can be created using the same equipment used for creating timing signals in the MRI subsystem.

Abstract translation: 医学影像系统的时间安排 该系统包括磁共振成像（MRI）子系统和非MRI子系统。 非MRI子系统的操作涉及MRI子系统的射频（RF）舱内的定时信号。 在MRI子系统和非MRI子系统之间共同的时基上，按照每个非MRI子系统定时信号。 非MRI子系统可以是医学成像子系统。 非MRI医学成像子系统可以是正电子发射断层摄影（PET）子系统。 可以使用与用于在MRI子系统中创建定时信号相同的设备模型来创建基于公共时基的每个非MRI子系统定时信号。 可以使用用于在MRI子系统中创建定时信号的相同设备来创建基于公共时基的非MRI子系统定时信号的至少一个阶段。

公开(公告)号：US20090179705A1

公开(公告)日：2009-07-16

申请号：US12331512

申请日：2008-12-10

Applicant: Ralph Oppelt ,  Markus Vester

Inventor： Ralph Oppelt ,  Markus Vester

IPC: H03F1/00

CPC classification number: H03F1/34 ,  H03F1/26 ,  H03F1/42 ,  H03F1/56 ,  H03F3/195 ,  H03F2200/147 ,  H03F2200/36 ,  H03F2200/372

Abstract: An amplifier circuit has a transistor element that has an input terminal, an output terminal) and a third terminal. An input signal to be amplified is supplied to the input terminal. The amplified input signal is emitted as an output signal at the output terminal. The input terminal is connected with the output terminal via a first reactance. The third terminal is connected via a second reactance with a zero potential. One of the reactances is fashioned as an inductor and the other of the reactances is fashioned as a capacitor. An inductance value of the inductor and a capacitance value of the capacitor are dimensioned such that the quotient of the inductance value of the inductor and the capacitance value of the capacitor is equal to the product of a desired input impedance that is effective at the input terminal and an output impedance associated with the output impedance. Based on this dimensioning, the output impedance associated with the output terminal is mapped to the input terminal at the same level or scaled.

Abstract translation: 放大器电路具有晶体管元件，其具有输入端子，输出端子）和第三端子。 要放大的输入信号被提供给输入端。 放大的输入信号作为输出端子处的输出信号发出。 输入端通过第一电抗与输出端连接。 第三端子经由具有零电位的第二电抗连接。 其中一个电抗被形成为一个电感，另一个是电抗器。 电感器的电感值和电容器的电容值被设定为使得电感器的电感值和电容器的电容值的商数等于在输入端子处有效的期望的输入阻抗的乘积 以及与输出阻抗相关联的输出阻抗。 基于此尺寸，与输出端子相关联的输出阻抗被映射到相同电平或缩放的输入端子。

公开(公告)号：US07522952B2

公开(公告)日：2009-04-21

申请号：US11395267

申请日：2006-04-03

Applicant: Robert Krieg ,  Rainer Kuth ,  Ralf Ladebeck ,  Ralph Oppelt ,  Wolfgang Renz ,  Sebastian Schmidt ,  Markus Vester

Inventor： Robert Krieg ,  Rainer Kuth ,  Ralf Ladebeck ,  Ralph Oppelt ,  Wolfgang Renz ,  Sebastian Schmidt ,  Markus Vester

IPC: A61B5/055

CPC classification number: G01T1/1603 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/5247 ,  G01R33/481 ,  G01T1/2985

Abstract: A combined PET/MRI tomography unit has a PET unit with a unit part assigned to the examination space, and a first evaluation unit for evaluating the PET electric signals. The unit part has a gamma ray detector. The combined unit has an MRI unit and a second evaluation unit for evaluating MRI signals. The MRI unit has a high frequency antenna as well as a gradient coil system, the high frequency antenna device being arranged nearer to the examination space than the gradient coil system, as well as a high frequency shield arranged between the gradient coil system and the high frequency antenna device. The PET unit part is arranged between the high frequency shield and the high frequency antenna device. A shielding cover for the high frequency antenna device faces the high frequency antenna device. The shielding cover is opaque to high frequency radiation.

Abstract translation: 组合的PET / MRI断层摄影单元具有分配给检查空间的单位部分的PET单元和用于评估PET电信号的第一评估单元。 单位部件具有伽马射线检测器。 组合单元具有用于评估MRI信号的MRI单元和第二评估单元。 MRI单元具有高频天线以及梯度线圈系统，高频天线装置布置成比梯度线圈系统更靠近检查空间，以及布置在梯度线圈系统和高电平之间的高频屏蔽 频率天线装置。 PET单元部分布置在高频屏蔽和高频天线装置之间。 用于高频天线装置的屏蔽罩面向高频天线装置。 屏蔽罩对高频辐射是不透明的。