公开(公告)号：US20140043029A1

公开(公告)日：2014-02-13

申请号：US13960791

申请日：2013-08-06

申请人： Stephan Biber ,  Klaus Huber

发明人： Stephan Biber ,  Klaus Huber

IPC分类号： G01R33/36

CPC分类号： G01R33/36 ,  A61B5/055 ,  G01R33/365

摘要： A system for electromagnetic excitation of an object under examination during magnetic resonance tomography includes a radio frequency (RF) device for generating a radio-frequency signal and a plurality of antennas for emitting the radio-frequency signal. A signal connection exists between the output of the RF device and the plurality of antennas. A source impedance of the signal connection to the output of the RF device at a connection point of the plurality of antennas is significantly higher than the impedance of the plurality of antennas at the connection points, so that the plurality of antennas are fed in a current source feed mode if a radio-frequency signal is present.

摘要翻译： 在磁共振断层摄影中，检查对象的电磁激励系统包括用于产生射频信号的射频（RF）装置和用于发射射频信号的多个天线。 在RF设备的输出和多个天线之间存在信号连接。 在多个天线的连接点处的到RF设备的输出的信号连接的源阻抗显着高于连接点处的多个天线的阻抗，使得多个天线以当前的电流 如果存在射频信号，则源馈送模式。

公开(公告)号：US08217663B2

公开(公告)日：2012-07-10

申请号：US11990642

申请日：2006-07-27

申请人： Thomas Bosselmann ,  Klaus Huber ,  Andreas Schicht ,  Michael Willsch

发明人： Thomas Bosselmann ,  Klaus Huber ,  Andreas Schicht ,  Michael Willsch

IPC分类号： G01R27/04 ,  G01R27/32

CPC分类号： G01B15/02 ,  F01D21/003 ,  F05D2230/90 ,  F05D2260/80 ,  G01S13/36 ,  G01S13/88

摘要： A method determines the layer thickness of a TBC coating of at least one blade of a non-positive-displacement machine. To this end, at least one electromagnetic wave is emitted to the surface of the at least one blade, the at least one electromagnetic wave is then at least partially reflected by the at least one blade, and the reflected portion of the at least one electromagnetic wave is received and subsequently processed. In addition, the at least one electromagnetic wave is emitted with a frequency matched to the layer thickness of the TBC coating, and the phase of the at least one electromagnetic wave is compared with the phase of the at least one received electromagnetic wave. The at least one emitted electromagnetic wave undergoes a phase change during reflection and the layer thickness of the TBC coating is determined by the phase comparison.

摘要翻译： 一种方法确定非正排量机器的至少一个叶片的TBC涂层的层厚度。 为此，至少一个电磁波被发射到至少一个叶片的表面，然后至少一个电磁波被至少一个叶片至少部分地反射，并且至少一个电磁波的反射部分 波被接收并随后处理。 此外，以与TBC涂层的层厚度相匹配的频率发射至少一个电磁波，并且将至少一个电磁波的相位与至少一个接收的电磁波的相位进行比较。 至少一个发射的电磁波在反射期间经历相变，并且通过相位比较来确定TBC涂层的层厚度。

公开(公告)号：US07921291B2

公开(公告)日：2011-04-05

申请号：US10550232

申请日：2004-02-09

申请人： Eva Saar ,  Bernhard Loehlein ,  Klaus Huber ,  Matthias Gunkel

发明人： Eva Saar ,  Bernhard Loehlein ,  Klaus Huber ,  Matthias Gunkel

IPC分类号： H04L9/32 ,  G06F11/30 ,  G06F15/16 ,  H04N7/16 ,  H04N7/173 ,  G10L21/00

CPC分类号： G06F21/12 ,  G06F21/10 ,  G06F21/51 ,  G06F21/62

摘要： The invention relates to a method and a communication system for releasing a data processing unit used for processing project data of a selected project. In order to obtain project-related release of a data processing unit (90), a client requests a user right for the data processing unit (90) used for processing the project data that is part of a predetermined project. A first signature (I) is verified as to the correctness thereof. The data processing unit (90) is released to process the project data that is part of the selected project only if the verification process has established that the first signature (I) is correct.

摘要翻译： 本发明涉及一种用于释放用于处理所选项目的项目数据的数据处理单元的方法和通信系统。 为了获得数据处理单元（90）的项目相关版本，客户端请求用于处理作为预定项目的一部分的项目数据的数据处理单元（90）的用户权限。 验证其第一个签名（I）的正确性。 如果验证过程已经确定第一签名（I）是正确的，则数据处理单元（90）被释放以处理作为所选项目的一部分的项目数据。

公开(公告)号：US07778414B2

公开(公告)日：2010-08-17

申请号：US10520251

申请日：2003-06-11

申请人： Klaus Huber ,  Matthias Baumgart ,  Tim Schneider

发明人： Klaus Huber ,  Matthias Baumgart ,  Tim Schneider

IPC分类号： H04K1/00 ,  H04L9/00 ,  H04L9/30 ,  H04L9/28 ,  H04L9/08 ,  H04L9/32

CPC分类号： H04L9/302 ,  H04L9/3249

摘要： The present invention relates to an asymmetrical encryption method. The public key is made up of a large composite number n; the private key is made up of the factors of the composite number. The encryption is made up of a number of iterations of individual encryption steps that are successively reversed during the decryption. In this context, the reversal of an individual encryption step requires the solving of a quadratic equation modulo m [sic]. The private key is preferably made up of the large prime numbers p and q. The public key is the product n of these two prime numbers, as well as a comparatively small integer L which is greater than one. The message m is made up of two integral values m1 and m2, thus m=(m1, m2), both values being in the set Zn={0, 1, 2, . . . , n−1}. The encryption is accomplished via the equation c=fL(m).

摘要翻译： 本发明涉及不对称加密方法。 公钥由大复合数n组成; 私钥由复合数字的因素组成。 加密由解密过程中连续反转的各个加密步骤的迭代组成。 在这种情况下，单个加密步骤的反转需要求解二次方程m [sic]。 私钥优选由大质数p和q组成。 公钥是这两个素数的乘积n，以及大于1的相对较小的整数L. 消息m由两个积分值m1和m2组成，因此m =（m1，m2），两个值都在集合Zn = {0,1,2。 。 。 ，n-1}。 加密通过等式c = fL（m）来实现。

公开(公告)号：US07778353B2

公开(公告)日：2010-08-17

申请号：US11744274

申请日：2007-05-04

申请人： Klaus Huber

发明人： Klaus Huber

IPC分类号： H04K1/02 ,  H04L25/03 ,  H04L25/49

CPC分类号： H03F1/3241 ,  G01R33/3614 ,  H03F1/3247

摘要： A controller for an RF amplifier, in particular for an RF amplifier of an MR tomograph, contains an RF control element that finely adjusts an RF signal requiring to be fed to the RF amplifier in magnitude and phase using LF control parameters of a control element regulator, a power meter that measures the input power of the RF signal fed to the RF amplifier and a pre-emphasizer that applies correction values dependent on the input power to the LF control parameters to compensate a power-dependent characteristic curve of the RF amplifier.

摘要翻译： 用于RF放大器的控制器，特别是用于MR断层摄影机的RF放大器的RF控制器包含RF控制元件，其利用控制元件调节器的LF控制参数在幅度和相位上精细地调节需要馈送到RF放大器的RF信号 测量馈送到RF放大器的RF信号的输入功率的功率计和预加重器，该预加重器将取决于LF控制参数的输入功率的校正值应用于RF放大器的功率相关特性曲线。

公开(公告)号：US07672649B2

公开(公告)日：2010-03-02

申请号：US11744291

申请日：2007-05-04

申请人： Klaus Huber ,  Ralph Oppelt

发明人： Klaus Huber ,  Ralph Oppelt

IPC分类号： H01Q11/12 ,  H04B1/00

CPC分类号： H03G3/3036 ,  G01R33/3621 ,  H03F1/3247 ,  H03F1/3282 ,  H03F1/3294 ,  H03F2200/195 ,  H03F2200/207 ,  H03F2200/336 ,  H03F2200/451 ,  H03G1/04

摘要： A controller for an RF amplifier, in particular for a RF amplifier of an MR tomography apparatus, has an IQ control element for adjusting the magnitude and phase an RF signal that is be fed to the RF amplifier. The IQ control element has a signal splitter that splits the RF signal into two partial signals having a 90° phase offset in an I path and a Q path, each having a multiplier for multiplying the partial signal by an I factor in the I path and a Q factor in the Q path. A summing unit recombines the partial signals. A detector determines the actual phase difference and actual amplification between the RF signal fed to the IQ control element and the RF signal amplified by the RF amplifier. An IQ controller determines the I factor and the Q factor from the actual difference and a desired phase difference and the actual amplifier and a desired amplification. The IQ controller has an operating point at which the I factor and the Q factor are the same magnitude if the actual and desired phase differences and the actual and desired amplifications are the same.

摘要翻译： 用于RF放大器的控制器，特别是用于MR断层摄影装置的RF放大器的控制器具有用于调整幅度和相位的IQ控制元件，RF信号被馈送到RF放大器。 IQ控制元件具有信号分离器，其将RF信号分解成在I路径和Q路径中具有90°相位偏移的两个部分信号，每个具有用于将该部分信号乘以I路径中的I因子的乘法器和Q路径， Q路径中的Q因子。 求和单元重新组合部分信号。 检测器确定馈送到IQ控制元件的RF信号与由RF放大器放大的RF信号之间的实际相位差和实际放大。 IQ控制器根据实际差异和所需的相位差以及实际的放大器和所需的放大率来确定I因子和Q因子。 如果实际和所需的相位差以及实际和所需的放大倍数相同，则IQ控制器具有I因子和Q因子的幅度相同的工作点。

公开(公告)号：US07584238B2

公开(公告)日：2009-09-01

申请号：US10555513

申请日：2004-02-09

申请人： Klaus Huber

发明人： Klaus Huber

IPC分类号： G06G7/00

CPC分类号： G06G7/24

摘要： An analog circuit system for generating output signals whose curve shape, at least sectionally, corresponds or is approximate to an elliptic function. Standard analog components such as adders, integrators, multipliers and differential amplifiers can be interconnected in order to simulate elliptic time functions from the standpoint of circuit engineering.

摘要翻译： 一种用于产生输出信号的模拟电路系统，其曲线形状至少部分对应于或近似于椭圆函数。 标准模拟组件，例如加法器，积分器，乘法器和差分放大器可以互连，以便从电路工程的角度模拟椭圆时间函数。

公开(公告)号：US07583083B2

公开(公告)日：2009-09-01

申请号：US12179109

申请日：2008-07-24

申请人： Stephan Biber ,  Klaus Huber

发明人： Stephan Biber ,  Klaus Huber

IPC分类号： G01V3/00

CPC分类号： G01R33/3621

摘要： A radio-frequency acquisition device for a magnetic resonance tomography apparatus has at least one reception antenna for acquisition of magnetic resonance signals and with an amplifier device to amplify acquired magnetic resonance signals. The amplifier device has an input transistor and a transformation device to transform the source impedance of the acquisition antenna into a source impedance adapted to the input transistor, and wherein the transformation device can be switched between at least two transformation ratios.

摘要翻译： 用于磁共振断层摄影装置的射频获取装置具有至少一个用于获取磁共振信号的接收天线和放大器装置以放大获取的磁共振信号。 放大器装置具有输入晶体管和变换装置，用于将采集天线的源阻抗变换成适于输入晶体管的源阻抗，并且其中转换装置可以在至少两个变换比之间切换。

公开(公告)号：US07580473B2

公开(公告)日：2009-08-25

申请号：US10555527

申请日：2004-02-09

申请人： Klaus Huber

发明人： Klaus Huber

IPC分类号： H04L27/00

CPC分类号： H03C3/02 ,  H03C1/02 ,  H04L27/00

摘要： A method for modulating a carrier signal used for transmitting analog or digital message signals is provided. The module k of elliptic functions is used as a modulation parameter instead of the amplitude or the frequency. The carrier signal modulated according to this modulation method is provided with a constant amplitude and a fixed frequency while the signal form is chronologically modified at the rhythm of the message that is to be transmitted.

摘要翻译： 提供了用于调制用于发送模拟或数字消息信号的载波信号的方法。 椭圆函数的模块k用作调制参数，而不是幅度或频率。 根据该调制方式调制的载波信号被提供有恒定幅度和固定频率，同时信号形式按照要发送的消息的节奏按时间顺序修改。

公开(公告)号：US07318077B2

公开(公告)日：2008-01-08

申请号：US10686394

申请日：2003-10-14

申请人： Klaus Huber ,  Heiko Knospe

发明人： Klaus Huber ,  Heiko Knospe

IPC分类号： G06F17/17

CPC分类号： G06F17/175 ,  H03M7/30

摘要： A method for representation, interpolation and/or compression of data includes identifying a two-dimensional interpolation function s(z) based on a sampling function a(z). A Cauchy integral theorem is applicable for the interpolation function s(z). The interpolation function s(z) is used for the representation, interpolation and/or compression of the data.

摘要翻译： 用于数据的表示，插值和/或压缩的方法包括基于采样函数a（z）识别二维插值函数s（z）。 柯西积分定理适用于插值函数s（z）。 内插函数s（z）用于数据的表示，插值和/或压缩。