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61. 发明授权

US07834628B2 Arrangement to transmit magnetic resonance signals via multiplexed multiplexer reception branches 有权
标题翻译：通过多路复用器接收分支传送磁共振信号的布置
公开(公告)号：US07834628B2
公开(公告)日：2010-11-16
申请号：US12243038
申请日：2008-10-01
申请人： Stephan Biber , Jan Bollenbeck , Ralph Oppelt , Markus Vester
发明人： Stephan Biber , Jan Bollenbeck , Ralph Oppelt , Markus Vester
IPC分类号： G01V3/00
CPC分类号： G01R33/3415 , G01R33/3621 , G01R33/3664 , G01R33/3692
摘要： An arrangement to transmit magnetic resonance signals has at least two reception branches. Each reception branch contains a single antenna of a local coil as well as an amplifier connected with the single antenna, such that an amplified magnetic resonance signal is formed from a magnetic resonance signal that is acquired via the single antenna. In a multiplexer, each input is connected with a respective reception branch, such that the amplified magnetic resonance signals of the reception branch are combined by the multiplexer into a resulting signal using a time multiplexing method. A transmission path is connected on one side with an output of the multiplexer and on the other side with a receiver, such that the resulting signal is transmitted from the multiplexer to the receiver via the transmission path.
摘要翻译：传输磁共振信号的装置具有至少两个接收分支。每个接收分支包含本地线圈的单个天线以及与单个天线连接的放大器，使得经由单个天线获取的磁共振信号形成放大的磁共振信号。在多路复用器中，每个输入与相应的接收分支相连，使得接收分支的放大的磁共振信号由多路复用器使用时间复用方法组合成结果信号。传输路径在一侧与多路复用器的输出端连接，另一侧与接收器连接，使得所得到的信号经由传输路径从多路复用器传输到接收器。

62. 发明申请

US20090096455A1 ARRANGEMENT TO TRANSMIT MAGNETIC RESONANCE SIGNALS 有权
标题翻译：发射磁共振信号的安排
公开(公告)号：US20090096455A1
公开(公告)日：2009-04-16
申请号：US12243038
申请日：2008-10-01
申请人： Stephan Biber , Jan Bollenbeck , Ralph Oppelt , Markus Vester
发明人： Stephan Biber , Jan Bollenbeck , Ralph Oppelt , Markus Vester
IPC分类号： G01R33/36
CPC分类号： G01R33/3415 , G01R33/3621 , G01R33/3664 , G01R33/3692
摘要： An arrangement to transmit magnetic resonance signals has at least two reception branches. Each reception branch contains a single antenna of a local coil as well as an amplifier connected with the single antenna, such that an amplified magnetic resonance signal is formed from a magnetic resonance signal that is acquired via the single antenna. In a multiplexer, each input is connected with a respective reception branch, such that the amplified magnetic resonance signals of the reception branch are combined by the multiplexer into a resulting signal using a time multiplexing method. A transmission path is connected on one side with an output of the multiplexer and on the other side with a receiver, such that the resulting signal is transmitted from the multiplexer to the receiver via the transmission path.
摘要翻译：传输磁共振信号的装置具有至少两个接收分支。每个接收分支包含本地线圈的单个天线以及与单个天线连接的放大器，使得经由单个天线获取的磁共振信号形成放大的磁共振信号。在多路复用器中，每个输入与相应的接收分支相连，使得接收分支的放大的磁共振信号由多路复用器使用时间复用方法组合成结果信号。传输路径在一侧与多路复用器的输出端连接，另一侧与接收器连接，使得所得到的信号经由传输路径从多路复用器传输到接收器。

63. 发明申请

US20070207763A1 MIXER CIRCUIT WITH BALANCED FREQUENCY MIXER WITH VARACTOR DIODES 有权
标题翻译：具有变压器二极管的平衡混频器的混频器电路
公开(公告)号：US20070207763A1
公开(公告)日：2007-09-06
申请号：US11680720
申请日：2007-03-01
申请人： Jan Bollenbeck , Martin Hergt , Markus Vester
发明人： Jan Bollenbeck , Martin Hergt , Markus Vester
IPC分类号： H04B1/26
CPC分类号： H03D7/1408
摘要： In a mixer circuit with a balanced frequency mixer with varactor diodes, a first input signal that exhibits a first input frequency can be fed to the frequency mixer via a first input. Furthermore, a second input signal that exhibits a second input frequency can be fed to the frequency mixer via a second input. The frequency mixer has at least two amplifier elements fashioned as varactor diodes. These amplifier elements mix the input signals with one another into a mix signal with a first signal component and a second signal component. The first signal component exhibits a first component frequency, the second signal component a second component frequency. The first component frequency is equal to the sum of the first and second input frequencies, the second component frequency is equal to the difference of the first and second input frequencies. An output signal that contains at least one of the signal components can be tapped via the output. The frequency mixer is fashioned as a balanced frequency mixer in which at least the second input and the output are decoupled from one another. The second input frequency is a multiple of the first input frequency. An adjustment circuit for adjustment of an operating point of the varactor diodes is connected in parallel with each varactor diode.
摘要翻译：在具有具有变容二极管的平衡混频器的混频器电路中，具有第一输入频率的第一输入信号可以经由第一输入馈送到混频器。此外，具有第二输入频率的第二输入信号可以经由第二输入馈送到混频器。混频器具有至少两个放大器元件，其形式为变容二极管。这些放大器元件将输入信号彼此混合成具有第一信号分量和第二信号分量的混合信号。第一信号分量呈现第一分量频率，第二信号分量呈现第二分量频率。第一分量频率等于第一和第二输入频率的和，第二分量频率等于第一和第二输入频率的差。包含至少一个信号分量的输出信号可以通过输出进行抽头。混频器被形成为平衡混频器，其中至少第二输入和输出彼此解耦。第二输入频率是第一输入频率的倍数。用于调整变容二极管的工作点的调整电路与每个变容二极管并联连接。

64. 发明授权

US06549068B1 System and method for operating an RF power amplifier 失效
标题翻译：用于操作RF功率放大器的系统和方法
公开(公告)号：US06549068B1
公开(公告)日：2003-04-15
申请号：US10049017
申请日：2002-05-16
申请人： Jan Bollenbeck
发明人： Jan Bollenbeck
IPC分类号： H03G320
CPC分类号： H03G3/3042 , H03G3/3036
摘要： Method for operating an RF power amplifier (100; 200) with an approximately linear characteristic by adjusting at least one operating parameter of the amplifier or at least one active component of this amplifier, wherein a minimum collector or drain current of the active component or, respectively, an amplifier stage and the input signal level of the RF power amplifier are controlled in dependence on the quotient of harmonic power and useful-signal power of the amplifier output signal.
摘要翻译：用于通过调节放大器的至少一个操作参数或该放大器的至少一个有源分量来操作具有近似线性特性的RF功率放大器（100; 200）的方法，其中所述有源部件的最小集电极或漏极电流，分别根据放大器输出信号的谐波功率和有用信号功率的商来控制放大器级和RF功率放大器的输入信号电平。

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