公开(公告)号：US20070035350A1

公开(公告)日：2007-02-15

申请号：US11443558

申请日：2006-05-30

Applicant: Jan Bollenbeck ,  Markus Vester

Inventor： Jan Bollenbeck ,  Markus Vester

IPC: H03B5/34

CPC classification number: H03J7/08 ,  H03H7/0161 ,  H03H7/20 ,  H03H2009/02204 ,  H03J7/065 ,  H03L7/0805 ,  H03L7/0812

Abstract: In a circuit arrangement for generation of a reference signal with an oscillation generator, a phase-controlled filter and a frequency multiplier are arranged downstream from the oscillation generator. The frequency multiplier is connected with an output for emission of the reference signal.

Abstract translation: 在用振荡发生器产生参考信号的电路装置中，相位控制滤波器和倍频器布置在振荡发生器的下游。 倍频器与用于发射参考信号的输出端相连。

公开(公告)号：US10670673B2

公开(公告)日：2020-06-02

申请号：US15613196

申请日：2017-06-03

Applicant: Jan Bollenbeck

Inventor： Jan Bollenbeck

IPC: G01R33/36 ,  G01R33/341 ,  H01P3/06 ,  H01P3/08

Abstract: A transmitting device and a method for transmitting two high frequency signals for a magnetic resonance tomograph are provided. The transmitting device includes a shielded balanced transmission line, a first signal driver, and a second signal driver. The first signal driver and the second signal driver feed the first high frequency signal to a first conductor and the second high frequency signal to a second conductor of the balanced transmission line. A shielding of the balanced transmission line has an electrical connection to a common ground potential for the first signal driver and the second signal driver.

公开(公告)号：US10481227B2

公开(公告)日：2019-11-19

申请号：US15585769

申请日：2017-05-03

Applicant: Stephan Biber ,  Jan Bollenbeck ,  Martin Hemmerlein

Inventor： Stephan Biber ,  Jan Bollenbeck ,  Martin Hemmerlein

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

Abstract: 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

Applicant: Stephan Biber ,  Jan Bollenbeck

Inventor： Stephan Biber ,  Jan Bollenbeck

IPC: G01R33/36

Abstract: 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：US10048342B2

公开(公告)日：2018-08-14

申请号：US14670817

申请日：2015-03-27

Applicant: Jan Bollenbeck

Inventor： Jan Bollenbeck

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

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.

公开(公告)号：US09985776B2

公开(公告)日：2018-05-29

申请号：US14631480

申请日：2015-02-25

Applicant: Jan Bollenbeck

Inventor： Jan Bollenbeck

IPC: H04L27/14 ,  H04L7/033 ,  G01R33/28 ,  G01R33/54 ,  H02J7/00 ,  H04L27/12 ,  H04L27/20 ,  H04L27/22 ,  A61B5/055

CPC classification number: H04L7/0331 ,  A61B5/055 ,  G01R33/283 ,  G01R33/543 ,  H02J7/0044 ,  H04L27/12 ,  H04L27/14 ,  H04L27/20 ,  H04L27/22

Abstract: A communication method for communication between a first and a second communication apparatus, where at least one wanted signal is transmitted from the second communication apparatus to the first communication apparatus is provided. The method includes sending a first carrier signal at a first frequency using the first communication apparatus. The method also includes receiving the first carrier signal using the second communication apparatus and generating a second carrier signal at a second frequency. The method includes changing the second frequency and/or a specified phase angle, and/or modulating the second carrier signal in each case as a function of the wanted signal in order to generate a transmit signal. The transmit signal is sent by the second communication apparatus, and the transmit signal is received and demodulated in order to recover the wanted signal using the first communication apparatus.

公开(公告)号：US20170322267A1

公开(公告)日：2017-11-09

申请号：US15585769

申请日：2017-05-03

Applicant: Stephan Biber ,  Jan Bollenbeck ,  Martin Hemmerlein

Inventor： Stephan Biber ,  Jan Bollenbeck ,  Martin Hemmerlein

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

CPC classification number: G01R33/3621 ,  G01R33/3815 ,  G01R33/385 ,  H03H7/42

Abstract: 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：US20140266190A1

公开(公告)日：2014-09-18

申请号：US14204007

申请日：2014-03-11

Applicant: Jan Bollenbeck ,  Jörg Hüttner ,  Klaus Pistor ,  Stefan Schwarzer ,  Markus Vester

Inventor： Jan Bollenbeck ,  Jörg Hüttner ,  Klaus Pistor ,  Stefan Schwarzer ,  Markus Vester

IPC: G01R33/56

CPC classification number: G01R33/56 ,  G01R33/3692

Abstract: The embodiments relate to an image reconstruction to be carried out on a base unit of a MRI system, where data is formed by reception signals obtained by a local coil unit. Provisions are made for an alternating magnetic field, modulated in accordance with a reference clock, the alternating magnetic field to be used by the local coil unit for obtaining electric energy for supplying local electronics of the local coil unit and the reference clock to be retrieved from the received alternating magnetic field by the local electronics, a radio signal containing MRI information representing the reception signals and clock information representing the retrieved reference clock to be produced by the local electronics and transmitted to the base unit, and the received radio signal to be processed by the base unit such that the data and the clock information are retrieved therefrom and provided for the image reconstruction.

Abstract translation: 实施例涉及要在MRI系统的基本单元上执行的图像重建，其中数据由通过局部线圈单元获得的接收信号形成。 对于根据参考时钟调制的交变磁场的规定，由局部线圈单元使用的用于获得用于提供局部线圈单元的本地电子器件的电能的交变磁场和将从 由本地电子设备接收的交变磁场，包含表示接收信号的MRI信息的无线电信号和表示由本地电子设备发送并发送到基本单元的检索到的参考时钟的时钟信息，以及所接收的待处理的无线电信号 通过基本单元使得数据和时钟信息从其中检索并提供给图像重建。

公开(公告)号：US20130342199A1

公开(公告)日：2013-12-26

申请号：US13924861

申请日：2013-06-24

Applicant: Jan Bollenbeck ,  Stefan Schwarzer ,  Markus Vester

Inventor： Jan Bollenbeck ,  Stefan Schwarzer ,  Markus Vester

IPC: G01R33/36

CPC classification number: G01R33/3692

Abstract: A method for determining communication latency in a magnetic resonance tomography system includes emitting a high-frequency pulse at a first timepoint, receiving the high-frequency pulse by a local coil arrangement of the magnetic resonance tomography system, and transmitting a return signal from the local coil arrangement to a receiving unit. The method also includes receiving the return signal by the receiving unit at a second timepoint, and evaluating a time difference between the first timepoint and the second timepoint in order to determine the communication latency.

Abstract translation: 用于确定磁共振断层摄影系统中的通信等待时间的方法包括在第一时间点发射高频脉冲，通过磁共振断层摄影系统的局部线圈布置接收高频脉冲，以及从本地发送返回信号 线圈布置到接收单元。 该方法还包括在第二时刻由接收单元接收返回信号，以及评估第一时间点和第二时间点之间的时间差，以便确定通信等待时间。

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。