公开(公告)号：US20180367108A1

公开(公告)日：2018-12-20

申请号：US15562982

申请日：2016-03-15

申请人： Franz Eiermann ,  Ralph Oppelt

发明人： Franz Eiermann ,  Ralph Oppelt

IPC分类号： H03F3/217 ,  H02J7/02

CPC分类号： H03F3/2171 ,  H02J7/025 ,  H03F3/217 ,  H03F3/2178

摘要： A transmission amplifier is provided for amplifying the signal in a wire-free transmission system. The transmission amplifier includes a pre-amplifier stage and an amplifier output stage that is coupled to the pre-amplifier stage. The amplifier output stage is configured with gate components and is configured to provide a signal fed in as an amplified output signal on the output side.

公开(公告)号：US20170219667A1

公开(公告)日：2017-08-03

申请号：US15422136

申请日：2017-02-01

申请人： Andreas Fackelmeier ,  Klaus Huber ,  Sebastian Martius ,  Ralph Oppelt ,  Markus Vester

发明人： Andreas Fackelmeier ,  Klaus Huber ,  Sebastian Martius ,  Ralph Oppelt ,  Markus Vester

IPC分类号： G01R33/36 ,  G01R33/30

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：US20160181684A1

公开(公告)日：2016-06-23

申请号：US14972304

申请日：2015-12-17

申请人： Ralph Oppelt

发明人： Ralph Oppelt

IPC分类号： H04B3/28

CPC分类号： H01P1/225

摘要： A device for damping a standing wave on a waveguide carrying a signal is provided. The device includes at least one pair of an impedance-up-transforming and an impedance-down-transforming Boucherot bridge is connected into the waveguide. The two Boucherot bridges bring about locally increased impedances and inductance values, with the result that a significantly improved standing wave suppression or damping is obtained. The down-transforming Boucherot bridge is connected directly behind the up-transforming bridge, with the result that down-transformation to the original impedance of the waveguide again can be carried out and a signal reflection can thus be avoided.

摘要翻译： 提供了一种用于阻尼载波信号的波导上的驻波的装置。 该装置包括至少一对阻抗向上变换和阻抗下变换的Boucherot桥连接到波导中。 两个Boucherot桥梁带来了局部增加的阻抗和电感值，结果是获得显着改善的驻波抑制或阻尼。 下转换的Boucherot桥直接连接在上变换桥后面，结果可以再次向下变换到波导的原始阻抗，从而可以避免信号反射。

公开(公告)号：US20150207653A1

公开(公告)日：2015-07-23

申请号：US14602239

申请日：2015-01-21

申请人： Ralph Oppelt ,  Michael Wiehl

发明人： Ralph Oppelt ,  Michael Wiehl

IPC分类号： H04L27/12 ,  H04W72/04 ,  H04L5/00

CPC分类号： H04L27/12 ,  H04L5/0048 ,  H04L25/0226 ,  H04W72/0453

摘要： A transmitting apparatus for transmitting a frequency-modulated signal is provided. The transmitting apparatus includes a pilot tone generation device for generating a pilot tone. The transmitting apparatus also includes a modulation device for obtaining the generated pilot tone and a modulating useful signal and for generating a frequency-modulated signal based on a combination of the generated pilot tone and the modulating useful signal. The generated pilot tone has a frequency outside a frequency range of the modulating useful signal in order to vary a frequency range of the frequency-modulated signal.

摘要翻译： 提供一种用于发送调频信号的发送装置。 发送装置包括用于产生导频音的导频音产生装置。 发送装置还包括用于获得生成的导频音调的调制装置和调制有用信号，并且用于基于所生成的导频音和调制有用信号的组合来生成调频信号。 所产生的导频音具有在调制有用信号的频率范围之外的频率，以便改变调频信号的频率范围。

公开(公告)号：US07890070B2

公开(公告)日：2011-02-15

申请号：US11937552

申请日：2007-11-09

申请人： Jan Bollenbeck ,  Ralph Oppelt

发明人： Jan Bollenbeck ,  Ralph Oppelt

IPC分类号： H04B1/18 ,  H04B7/00

CPC分类号： H03J3/185 ,  H03H11/1291

摘要： A filter circuit arrangement for filtering of a radio-frequency signal has a first tunable filter and a phase regulation loop in order to hold the first tunable filter to a transmission phase constant relative to the frequency of the radio-frequency signal. The filter circuit arrangement has a second tunable filter arranged parallel to the first tunable filter in the phase regulation loop. The first tunable filter and the second tunable filter exhibit different attenuation characteristics and are fashioned and connected within the phase regulation loop so that: a capture range of the filter circuit arrangement, in which a tuning of the phase regulation loop to a radio-frequency signal to be filtered is possible is dominated by the attenuation characteristic of the second tunable filter, and so that the transmission behavior of the filter circuit arrangement in operation is dominated by the attenuation characteristic of the first tunable filter, given a tuned phase regulation loop. A circuit arrangement for generation of a local oscillator signal has an oscillation generator and a filter circuit arrangement as described above arranged downstream of the oscillation generator.

摘要翻译： 用于对射频信号进行滤波的滤波器电路装置具有第一可调滤波器和相位调节环路，以便将第一可调滤波器保持在相对于射频信号的频率的传输相位恒定。 滤波器电路装置具有在相位调节环路中平行于第一可调谐滤波器布置的第二可调谐滤波器。 第一可调谐滤波器和第二可调谐滤波器具有不同的衰减特性，并且在相位调节环路内形成和连接，使得：滤波器电路装置的捕获范围，其中相调节环路调谐到射频信号 要被滤波的是可能的，由第二可调谐滤波器的衰减特性所支配，并且使得在给定调谐相位调节环路的情况下，在操作中的滤波器电路装置的传输行为由第一可调谐滤波器的衰减特性支配。 用于产生本地振荡器信号的电路装置具有布置在振荡发生器下游的振荡发生器和如上所述的滤波器电路装置。

公开(公告)号：US07761060B2

公开(公告)日：2010-07-20

申请号：US11250824

申请日：2005-10-14

申请人： Ralph Oppelt

发明人： Ralph Oppelt

IPC分类号： H04B1/00 ,  H04B7/00

CPC分类号： H04B1/66 ,  G01R33/3621 ,  G01R33/3692

摘要： In a method and apparatus for transmission of signals, an input signal is supplied to at least one dynamic compressor and the dynamics of the signal is compressed by the dynamic compressor with a degree of compression. The compressed signal is subsequently adapted, in particular limited, in terms of its frequency bandwidth dependent on the degree of compression, such as directly dependent on the degree of compression or dependent on a reference value directly associated with the degree of compression, such as the input level of the signal before the dynamic compressor.

摘要翻译： 在用于传输信号的方法和装置中，输入信号被提供给至少一个动态压缩器，并且动态压缩器以一定程度的压缩将信号的动力学压缩。 压缩信号随后适应，特别是根据其频率带宽取决于压缩程度，例如直接取决于压缩程度或依赖于与压缩程度直接相关的参考值，例如 动态压缩机前的信号输入电平。

公开(公告)号：US20080136473A1

公开(公告)日：2008-06-12

申请号：US11937552

申请日：2007-11-09

申请人： Jan Bollenbeck ,  Ralph Oppelt

发明人： Jan Bollenbeck ,  Ralph Oppelt

IPC分类号： H03L7/081 ,  H03K5/00 ,  H03L7/08 ,  H03L7/06

CPC分类号： H03J3/185 ,  H03H11/1291

摘要： A filter circuit arrangement for filtering of a radio-frequency signal has a first tunable filter and a phase regulation loop in order to hold the first tunable filter to a transmission phase constant relative to the frequency of the radio-frequency signal. The filter circuit arrangement has a second tunable filter arranged parallel to the first tunable filter in the phase regulation loop. The first tunable filter and the second tunable filter exhibit different attenuation characteristics and are fashioned and connected within the phase regulation loop so that: a capture range of the filter circuit arrangement, in which a tuning of the phase regulation loop to a radio-frequency signal to be filtered is possible is dominated by the attenuation characteristic of the second tunable filter, and so that the transmission behavior of the filter circuit arrangement in operation is dominated by the attenuation characteristic of the first tunable filter, given a tuned phase regulation loop. A circuit arrangement for generation of a local oscillator signal has an oscillation generator and a filter circuit arrangement as described above arranged downstream of the oscillation generator.

摘要翻译： 用于对射频信号进行滤波的滤波器电路装置具有第一可调滤波器和相位调节环路，以便将第一可调滤波器保持在相对于射频信号的频率的传输相位恒定。 滤波器电路装置具有在相位调节环路中平行于第一可调谐滤波器布置的第二可调谐滤波器。 第一可调谐滤波器和第二可调谐滤波器具有不同的衰减特性，并且在相位调节环路内形成和连接，使得：滤波器电路装置的捕获范围，其中相调节环路调谐到射频信号 要被滤波的是可能的，由第二可调谐滤波器的衰减特性所支配，并且使得在给定调谐相位调节环路的情况下，在操作中的滤波器电路装置的传输行为由第一可调滤波器的衰减特性支配。 用于产生本地振荡器信号的电路装置具有布置在振荡发生器下游的振荡发生器和如上所述的滤波器电路装置。

公开(公告)号：US20060100860A1

公开(公告)日：2006-05-11

申请号：US11250824

申请日：2005-10-14

申请人： Ralph Oppelt

发明人： Ralph Oppelt

IPC分类号： G10L19/00

CPC分类号： H04B1/66 ,  G01R33/3621 ,  G01R33/3692

摘要： In a method and apparatus for transmission of signals, an input signal is supplied to at least one dynamic compressor and the dynamics of the signal is compressed by the dynamic compressor with a degree of compression. The compressed signal is subsequently adapted, in particular limited, in terms of its frequency bandwidth dependent on the degree of compression, such as directly dependent on the degree of compression or dependent on a reference value directly associated with the degree of compression, such as the input level of the signal before the dynamic compressor.

摘要翻译： 在用于传输信号的方法和装置中，输入信号被提供给至少一个动态压缩器，并且动态压缩器以一定程度的压缩将信号的动力学压缩。 压缩信号随后适应，特别是根据其频率带宽取决于压缩程度，例如直接取决于压缩程度或依赖于与压缩程度直接相关的参考值，例如 动态压缩机前的信号输入电平。

公开(公告)号：US06580317B1

公开(公告)日：2003-06-17

申请号：US09672630

申请日：2000-09-28

申请人： Ralph Oppelt

发明人： Ralph Oppelt

IPC分类号： H03F136

CPC分类号： H03F3/45475 ,  H03F1/26 ,  H03F1/34 ,  H03F1/56 ,  H03F2200/372

摘要： An amplifier includes a first broadband amplifier element (20) having a first and a second input (21 and 22, respectively) and also a first output (23). The first output (23) is fed back via a first and a second negative feedback path (30 and 40, respectively) to the first and second input (21 and 22, respectively). The first negative feedback path (30) includes a controlled current source (31), which brings about a reduction in the noise contribution of the second negative feedback path (40) and also a real finite input impedance.

摘要翻译： 放大器包括具有第一和第二输入（分别为21和22）以及第一输出（23）的第一宽带放大器元件（20）。 第一输出（23）经由第一和第二负反馈路径（分别为30和40）反馈到第一和第二输入端（21和22）。 第一负反馈路径（30）包括受控电流源（31），其导致第二负反馈路径（40）的噪声贡献的降低以及实际有限输入阻抗。

公开(公告)号：US06269052B1

公开(公告)日：2001-07-31

申请号：US09375069

申请日：1999-08-16

申请人： Ralph Oppelt

发明人： Ralph Oppelt

IPC分类号： H04B140

CPC分类号： G01S7/52017 ,  G01N29/11 ,  G01N29/34 ,  G01N29/36 ,  G01N2291/0231 ,  G01N2291/044 ,  H04R3/02 ,  Y10S367/903

摘要： The circuit and the method serve to transmit a transmission signal to a transducer and to receive a reception signal from the transducer. The transmitter and the receiver are each alternatively coupled to the transducer and decoupled from one another. The coupling and decoupling is thereby achieved by a total of three nonlinear two-terminal networks (Z1, Z2, Z3). The transmitter is connected to the transducer via a bipolar voltage limiter and the receiver is connected to the transducer via a bipolar current limiter.

摘要翻译： 电路和方法用于将传输信号传送到换能器并从换能器接收接收信号。 发射器和接收器各自可选地耦合到换能器并且彼此分离。 因此，通过总共三个非线性两端网络（Z1，Z2，Z3）实现耦合和去耦。 变送器通过双极性限压器连接到换能器，接收器通过双极限流器连接到换能器。