-
11.发明申请METHOD AND DEVICE FOR CONTROLLING A SIGNAL WITH A PLURALITY OF INDEPENDENT COMPONENTS 有权用于控制具有多个独立组件的信号的方法和装置公开(公告)号：US20120224647A1
公开(公告)日：2012-09-06
申请号：US13221652
申请日：2011-08-30
IPC分类号： H04L27/00
CPC分类号： G01R33/3607
摘要： A method for controlling a signal with a plurality of independent components is provided. The signal is fed as an input signal via an input path to a control path that supplies an output signal. The output signal is fed via an output path to a control apparatus controlling the input signal. A coupling signal is determined in a coupling determination apparatus. On the basis of the coupling signal, the independent components are decoupled in a decoupling apparatus, as a result of which, a decoupled output signal is generated. Components of the decoupled output signal are decoupled from the components of the input signal. The decoupled output signal is fed as a control variable to the control apparatus. The control apparatus controls each independent component separately on the basis of a desired signal with a diagonal controller and outputs the input signal as a manipulated variable.
摘要翻译： 提供了一种用多个独立部件控制信号的方法。 信号通过输入路径作为输入信号馈送到提供输出信号的控制路径。 输出信号通过输出路径馈送到控制输入信号的控制装置。 在耦合确定装置中确定耦合信号。 在耦合信号的基础上，独立分量在去耦装置中解耦，其结果是产生解耦输出信号。 去耦输出信号的分量与输入信号的分量去耦。 去耦输出信号作为控制变量馈送给控制装置。 控制装置基于具有对角线控制器的期望信号分别控制各独立分量，并输出输入信号作为操作变量。
-
公开(公告)号：US09134390B2
公开(公告)日：2015-09-15
申请号：US13436576
申请日：2012-03-30
申请人： Daniel Evers , Klaus Huber , Florian Poprawa , Christina Schindler , Markus Vester , Jörg Zapf
发明人： Daniel Evers , Klaus Huber , Florian Poprawa , Christina Schindler , Markus Vester , Jörg Zapf
IPC分类号： G01V3/00 , G01R33/422 , G01R33/3415 , G01R33/36
CPC分类号： G01R33/422 , G01R33/3415 , G01R33/3621 , G01R33/3692
摘要： The present embodiments relate to a magnetic resonance local coil with a receive antenna for receiving magnetic resonance signals. The magnetic resonance local coil also includes a transmission unit for transmitting magnetic resonance signal data generated on the basis of the magnetic resonance signals via a data transmit antenna of the magnetic resonance local coil to a signal data receiving unit of a magnetic resonance tomography systems. The transmission unit is provided, at least in sections, with screening with a first metal coating and a first dielectric coating.
摘要翻译： 本实施例涉及具有用于接收磁共振信号的接收天线的磁共振局部线圈。 磁共振局部线圈还包括传输单元，用于将通过磁共振局部线圈的数据发射天线的磁共振信号产生的磁共振信号数据发送到磁共振断层摄影系统的信号数据接收单元。 传动单元至少在分段上设置有第一金属涂层和第一介电涂层的筛选。
-
公开(公告)号：US20150028870A1
公开(公告)日：2015-01-29
申请号：US14349419
申请日：2012-09-12
申请人： Chih-Chung Chen , Klaus Huber , Johannes Reinschke , Claus Seisenberger , Markus Vester , Christian Wünsch
发明人： Chih-Chung Chen , Klaus Huber , Johannes Reinschke , Claus Seisenberger , Markus Vester , Christian Wünsch
CPC分类号： G01R33/543 , A61B5/055 , A61B5/7225 , A61B5/7271 , G01R33/3614 , G01R33/365
摘要： A two-channel magnetic resonance tomography system is provided with a regulation circuit for an amplification system in order to be able to take into account different load situations of the MRI system in a flexible and efficient manner. It is thus possible to improve the MRI measurements greatly if the MRI system is set to the respective load situation beforehand by an idle state measurement. The adaptation may optionally also be carried out during the MRI measurement. Therefore, a multiplicity of completely different load situations may be taken into account in an optimized manner by the regulation circuit.
摘要翻译： 双通道磁共振断层摄影系统具有用于放大系统的调节电路，以便能够以灵活和有效的方式考虑到MRI系统的不同负载情况。 如果通过空闲状态测量将MRI系统预先设定为相应的负载状态，则可以大大改善MRI测量。 也可以在MRI测量期间进行适应。 因此，可以通过调节电路以优化的方式考虑多种完全不同的负载情况。
-
公开(公告)号：US09841474B2
公开(公告)日：2017-12-12
申请号：US13221652
申请日：2011-08-30
CPC分类号： G01R33/3607
摘要： A method for controlling a signal with a plurality of independent components is provided. The signal is fed as an input signal via an input path to a control path that supplies an output signal. The output signal is fed via an output path to a control apparatus controlling the input signal. A coupling signal is determined in a coupling determination apparatus. On the basis of the coupling signal, the independent components are decoupled in a decoupling apparatus, as a result of which, a decoupled output signal is generated. Components of the decoupled output signal are decoupled from the components of the input signal. The decoupled output signal is fed as a control variable to the control apparatus. The control apparatus controls each independent component separately on the basis of a desired signal with a diagonal controller and outputs the input signal as a manipulated variable.
-
公开(公告)号：US09784811B2
公开(公告)日：2017-10-10
申请号：US14349419
申请日：2012-09-12
申请人： Chih-Chung Chen , Klaus Huber , Johannes Reinschke , Claus Seisenberger , Markus Vester , Christian Wünsch
发明人： Chih-Chung Chen , Klaus Huber , Johannes Reinschke , Claus Seisenberger , Markus Vester , Christian Wünsch
CPC分类号： G01R33/543 , A61B5/055 , A61B5/7225 , A61B5/7271 , G01R33/3614 , G01R33/365
摘要： A two-channel magnetic resonance tomography system is provided with a regulation circuit for an amplification system in order to be able to take into account different load situations of the MRI system in a flexible and efficient manner. It is thus possible to improve the MRI measurements greatly if the MRI system is set to the respective load situation beforehand by an idle state measurement. The adaptation may optionally also be carried out during the MRI measurement. Therefore, a multiplicity of completely different load situations may be taken into account in an optimized manner by the regulation circuit.
-
公开(公告)号：US20170219667A1
公开(公告)日：2017-08-03
申请号：US15422136
申请日：2017-02-01
CPC分类号： G01R33/3685 , G01R33/30
摘要： A line with a standing wave trap for a magnetic resonance tomograph, and a patient couch and a magnetic resonance tomograph with the line are provided. The line includes a carrier material, a first conductor track that extends along the carrier material in the carrier material or on the carrier material, and a first conductor loop. The first conductor loop is arranged on or in the carrier material. The first conductor loop has a signal coupling to the first conductor track. The first conductor loop has a first interruption that is bridged with a first capacitance.
-
公开(公告)号：US20160131728A1
公开(公告)日：2016-05-12
申请号：US14938707
申请日：2015-11-11
IPC分类号： G01R33/483
摘要： A magnetic resonance (MR) local coil system includes local MR transmit coils that may be inductively coupled to at least one power-feed coil of an MR device. At least two local MR transmit coils may be used to generate local B1 excitation fields that are differently structured with respect to each other.
摘要翻译： 磁共振（MR）局部线圈系统包括本地MR发射线圈，其可以感应耦合到MR装置的至少一个供电线圈。 可以使用至少两个本地MR发射线圈来产生彼此不同结构的本地B1激励场。
-
18.发明申请公开(公告)号：US20130229180A1
公开(公告)日：2013-09-05
申请号：US13784797
申请日：2013-03-04
申请人： Nikolaus Demharter , Klaus Huber , Claus Seisenberger , Thorsten Speckner , Markus Vester , Christian Wünsch
发明人： Nikolaus Demharter , Klaus Huber , Claus Seisenberger , Thorsten Speckner , Markus Vester , Christian Wünsch
IPC分类号： G01R33/54
CPC分类号： G01R33/543 , G01R33/3614
摘要： A method for emitting a sequence of high frequency pulses that may have different envelopes in a magnetic resonance tomography system is provided. A digital instruction signal that specifies the envelope for the high frequency pulses that are to be emitted is received. A digital control signal is transmitted to a high frequency unit for generating high frequency pulses, depending on the instruction signal. A test signal that allows notification of a current overload situation is received. The current control signal is reduced if the test signal indicates an overload situation.
摘要翻译： 提供了一种在磁共振断层摄影系统中发射可能具有不同包络的高频脉冲序列的方法。 接收指定要发射的高频脉冲的包络的数字指令信号。 根据指示信号，数字控制信号被发送到用于产生高频脉冲的高频单元。 接收允许通知当前过载情况的测试信号。 如果测试信号表示过载情况，则电流控制信号减小。
-
公开(公告)号：US10393845B2
公开(公告)日：2019-08-27
申请号：US15368607
申请日：2016-12-03
IPC分类号： G01R33/36 , G01R33/565
摘要： A transmitter for pilot tone navigation in a magnetic resonance tomography system includes a power supply and an antenna. The transmitter is configured to transmit a pilot tone signal via the antenna. The transmitter also includes a decoupling element in order to protect a transmitter output from signals that the antenna receives with excitation pulses of the magnetic resonance tomography system during a magnetic resonance tomography. In a method, movement-dependent changes to the pilot tone signal of the transmitter are identified by a controller of the magnetic resonance tomography system.
-
20.发明授权公开(公告)号：US09910113B2
公开(公告)日：2018-03-06
申请号：US13923308
申请日：2013-06-20
申请人： Markus Vester
发明人： Markus Vester
CPC分类号： G01R33/3692 , G01R33/3621
摘要： A local coil for a magnetic resonance imaging system for acquisition of magnetic resonance signals includes a receiving mechanism for wireless transmission of operating energy of the local coil and/or a signal of the magnetic resonance imaging system. The receiving mechanism is configured to take the operating energy and/or the signal from a supply field. A magnetic resonance imaging system is also provided. The magnetic resonance imaging system includes a transmitting mechanism for wireless transmission of operating energy of a local coil and/or a signal of the magnetic resonance imaging system. The transmitting mechanism has a transmission signal generator that is connected to a field source and a field sink. The transmitting mechanism is constructed such that, in operation, the operating energy and/or the signal is transmitted by a supply field that is present as an electrical alternating voltage field between the field source and the field sink.
-
-
-
-
-
-
-
-
-
搜索结果
277 条记录 (耗时 0.025 秒)