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11. 发明授权

US07372345B2 Circuit for connection of at least two signal sources with at least one signal output 失效
标题翻译：用于连接至少两个信号源与至少一个信号输出的电路
公开(公告)号：US07372345B2
公开(公告)日：2008-05-13
申请号：US11191307
申请日：2005-07-28
申请人： Helmut Kess
发明人： Helmut Kess
IPC分类号： H01P1/15
CPC分类号： H03K17/76
摘要： In a circuit for connection of at least two signal sources with at least one signal output, the signal sources are connected with a control unit. The control unit activates or deactivates the signal sources by transmission of control signals. Each signal source is connected with a blocking unit. Each blocking unit is connected with the control unit. The blocking unit can block or enable a connection between the signal source and the signal output, with the connection being automatically enabled when the signal source is activated.
摘要翻译：在用于将至少两个信号源与至少一个信号输出连接的电路中，信号源与控制单元连接。控制单元通过传输控制信号激活或禁用信号源。每个信号源与阻塞单元相连。每个阻塞单元与控制单元相连。阻塞单元可以阻止或启用信号源和信号输出之间的连接，当信号源被激活时，连接将自动启用。

12. 发明授权

US5572128A Double resonance antenna arrangement for a nuclear magnetic resonance apparatus 失效
标题翻译：用于核磁共振装置的双共振天线装置
公开(公告)号：US5572128A
公开(公告)日：1996-11-05
申请号：US292042
申请日：1994-08-18
申请人： Helmut Kess
发明人： Helmut Kess
IPC分类号： G01R33/32 , A61B5/055 , G01R33/34 , G01R33/36
CPC分类号： G01R33/3635 , G01R33/34046
摘要： In a double resonance antenna arrangement for a nuclear magnetic resonance apparatus having at least one conductor section that defines an examination region, a series circuit of a capacitive element and an inductive element is connected in parallel with at least a part of the conductor section.
摘要翻译：在具有限定检查区域的至少一个导体部分的核磁共振装置的双共振天线装置中，电容元件和电感元件的串联电路与导体部分的至少一部分并联连接。

13. 发明授权

US4883984A PIN diode switch 失效
标题翻译： PIN二极管开关
公开(公告)号：US4883984A
公开(公告)日：1989-11-28
申请号：US216019
申请日：1988-07-07
申请人： Helmut Kess
发明人： Helmut Kess
IPC分类号： H03K17/74
CPC分类号： H03K17/74
摘要： A PIN diode switch suitable for switching radio-frequency voltages has a series circuit of two oppositely polarized PIN diodes, with a control current supplied to the junction between the two PIN diodes through the collector-emitter path of a transistor and through an inductor. The necessity of using a high-voltage power pack to generate a high reverse bias in order to avoid limiting the amplitude of the radio frequency voltage to be switched is not necessary, as in conventional PIN diode switches.
摘要翻译：适用于切换射频电压的PIN二极管开关具有两个相对极化PIN二极管的串联电路，控制电流通过晶体管的集电极 - 发射极通路和电感器提供给两个PIN二极管之间的结。与传统的PIN二极管开关一样，不需要使用高压电源组来产生高反向偏压以避免限制要切换的射频电压的幅度。

14. 发明申请

US20130271129A1 Detecting Unplugged Local Coils in a Nuclear Magnetic Resonance Tomograph 有权
标题翻译：在核磁共振断层图检测未插拔的局部线圈
公开(公告)号：US20130271129A1
公开(公告)日：2013-10-17
申请号：US13858425
申请日：2013-04-08
申请人： Helmut Kess
发明人： Helmut Kess
IPC分类号： G01R33/36
CPC分类号： G01R33/36 , G01R33/288 , G01R33/3692
摘要： The present embodiments relate to apparatuses and methods for detecting unplugged local coils in a magnetic resonance tomography (MRT) device. The MRT device includes a local coil that has a RFID tag configured to detect transmitted RFID signals. When at least one transmitted RFID signal is detected, at least one unplugged local coil is detected in the MRT device.
摘要翻译：本实施例涉及在磁共振断层摄影（MRT）装置中检测未插拔的本地线圈的装置和方法。 MRT装置包括具有RFID标签的局部线圈，其被配置为检测所发送的RFID信号。当检测到至少一个发送的RFID信号时，在MRT设备中检测到至少一个未插拔的本地线圈。

15. 发明授权

US08324889B2 Magnetic resonance system with orientation detection of tools 有权
标题翻译：磁共振系统具有方向检测的工具
公开(公告)号：US08324889B2
公开(公告)日：2012-12-04
申请号：US12561615
申请日：2009-09-17
申请人： Helmut Kess
发明人： Helmut Kess
IPC分类号： G01B7/14
CPC分类号： G01R33/28 , G01R33/072 , G01R33/341
摘要： A magnetic resonance system has a basic field magnet that generates a static basic magnetic field that is essentially homogeneous within an examination volume, the basic magnetic field having a basic direction. At least one tool can be inserted into the examination volume and can be removed from it. The at least one tool has a number of Hall elements. Each Hall element of the at least one tool is fashioned such that a binary signal emitted by said Hall element characterizes whether the basic magnetic field has a component that, relative to a respective element direction of the respective Hall element, is greater than a threshold. The respective element directions of the respective Hall elements differ from one another in pairs. The Hall elements of the at least one tool communicate in terms of data with an evaluation device of the magnetic resonance system to transmit the binary signal that it emits. The evaluation device uses the transmitted binary signal to determine an orientation of the at least one tool relative to the basic direction and takes additional measures depending on this orientation.
摘要翻译：磁共振系统具有产生在检查体积内基本均匀的静态基本磁场的基本磁场磁场，基本磁场具有基本方向。至少可以将一个工具插入到检查体积中，并可从中移除。至少一个工具具有多个霍尔元件。至少一个工具的每个霍尔元件被形成为使得由所述霍尔元件发射的二进制信号表征基本磁场是否具有相对于各个霍尔元件的相应元件方向大于阈值的分量。各个霍尔元件的各元件方向彼此成对地不同。至少一个工具的霍尔元件根据数据与磁共振系统的评估装置进行通信，以传输其发射的二进制信号。评估装置使用所发送的二进制信号来确定至少一个工具相对于基本方向的取向，并且取决于该取向采取额外的措施。

16. 发明授权

US08111139B2 Arrangement for monitoring a switching state of a switch 失效
标题翻译：用于监视开关的开关状态的布置
公开(公告)号：US08111139B2
公开(公告)日：2012-02-07
申请号：US12513427
申请日：2008-04-17
申请人： Helmut Kess
发明人： Helmut Kess
IPC分类号： H04Q5/22
CPC分类号： H03K17/18 , H03K17/74
摘要： An arrangement for monitoring the switching state of a switch has a monitoring circuit that monitors a circuit containing a first switch. The monitoring circuit has RFID electronics and a second switch. An outlet of the RFID electronics is connected in series with an RFID antenna, and the second switch is connected to an input of the RFID electronics, such that the second switch opens or closes the monitoring circuit dependent on the switching state thereof. The first and second switches are coupled to each other so that the switching state of the second switch is controlled as a function of the switching state of the first switch, so the switching state of the second switch represents the switching state of the first switch. An RFID reading device is within range of the RFID antenna, and feeds a query signal via the RFID antenna into the monitoring circuit to determine the representative switching state of the first switch via the switching state of the second switch.
摘要翻译：用于监视开关的开关状态的装置具有监视包含第一开关的电路的监视电路。监控电路具有RFID电子设备和第二开关。 RFID电子设备的出口与RFID天线串联连接，第二开关连接到RFID电子设备的输入端，使得第二开关根据其开关状态来打开或关闭监视电路。第一和第二开关彼此耦合，使得第二开关的开关状态作为第一开关的开关状态的函数被控制，因此第二开关的开关状态表示第一开关的开关状态。 RFID读取装置在RFID天线的范围内，并且经由RFID天线将查询信号馈送到监视电路中，以通过第二开关的切换状态确定第一开关的代表性切换状态。

17. 发明授权

US07944210B2 Magnetic resonance rf transmission arrangement and method with commonly fed labeling and excitation antennas 有权
标题翻译：磁共振射频布置方法与普通馈线标签和激励天线
公开(公告)号：US07944210B2
公开(公告)日：2011-05-17
申请号：US12238871
申请日：2008-09-26
申请人： Hubertus Fischer , Helmut Kess , Georg Rauh , Wilfried Schnell
发明人： Hubertus Fischer , Helmut Kess , Georg Rauh , Wilfried Schnell
IPC分类号： G01V3/00
CPC分类号： G01R33/3664 , G01R33/3642 , G01R33/4833 , G01R33/56366
摘要： A radio-frequency transmission device for a magnetic resonance system to generate magnetic resonance exposures of an examination region of an examination subject, has: a first radio-frequency transmission antenna that emits radio-frequency signals in the examination region, a radio-frequency amplifier that supplies the first radio-frequency transmission antenna, with radio-frequency signals with a predetermined radio-frequency transmission power, and a second radio-frequency transmission antenna fashioned to label a medium flowing in the examination region and/or examination regions via emission of labeling radio-frequency signals, such that the medium can be identified in the generated magnetic resonance exposures of the examination region. The second radio-frequency transmission antenna is coupled with the radio-frequency amplifier to supply the first radio-frequency transmission antenna, such that it likewise supplies the second radio-frequency transmission antenna with radio-frequency signals with a predetermined radio-frequency transmission power for the emission of radio-frequency labeling signals.
摘要翻译：一种用于产生检查对象的检查区域的磁共振曝光的磁共振系统的射频传输装置具有：在检查区域中发射射频信号的第一射频发射天线，射频放大器其提供具有预定的射频发射功率的射频信号的第一射频发射天线，以及第二射频发射天线，其通过发射检测区域和/或检查区域中标记流经检查区域和/或检查区域的介质标记射频信号，使得可以在产生的检查区域的磁共振暴露中识别介质。第二射频发射天线与射频放大器耦合以提供第一射频发射天线，使得它同样向第二射频发射天线提供具有预定射频发射功率的射频信号用于发射射频标签信号。

18. 发明申请

US20100072985A1 MAGNETIC RESONANCE SYSTEM WITH ORIENTATION DETECTION OF TOOLS 有权
标题翻译：具有方向检测工具的磁共振系统
公开(公告)号：US20100072985A1
公开(公告)日：2010-03-25
申请号：US12561615
申请日：2009-09-17
申请人： Helmut Kess
发明人： Helmut Kess
IPC分类号： G01B7/30 , G01R33/12
CPC分类号： G01R33/28 , G01R33/072 , G01R33/341
摘要： A magnetic resonance system has a basic field magnet that generates a static basic magnetic field that is essentially homogeneous within an examination volume, the basic magnetic field having a basic direction. At least one tool can be inserted into the examination volume and can be removed from it. The at least one tool has a number of Hall elements. Each Hall element of the at least one tool is fashioned such that a binary signal emitted by said Hall element characterizes whether the basic magnetic field has a component that, relative to a respective element direction of the respective Hall element, is greater than a threshold. The respective element directions of the respective Hall elements differ from one another in pairs. The Hall elements of the at least one tool communicate in terms of data with an evaluation device of the magnetic resonance system to transmit the binary signal that it emits. The evaluation device uses the transmitted binary signal to determine an orientation of the at least one tool relative to the basic direction and takes additional measures depending on this orientation.
摘要翻译：磁共振系统具有产生在检查体积内基本均匀的静态基本磁场的基本磁场磁场，基本磁场具有基本方向。至少可以将一个工具插入到检查体积中，并可从中移除。至少一个工具具有多个霍尔元件。至少一个工具的每个霍尔元件被形成为使得由所述霍尔元件发射的二进制信号表征基本磁场是否具有相对于各个霍尔元件的相应元件方向大于阈值的分量。各个霍尔元件的各元件方向彼此成对地不同。至少一个工具的霍尔元件根据数据与磁共振系统的评估装置进行通信，以传输其发射的二进制信号。评估装置使用所发送的二进制信号来确定至少一个工具相对于基本方向的取向，并且取决于该取向采取额外的措施。

19. 发明授权

US07170293B2 Circuit arrangement for transferring signals form local MR coils to evaluation units 失效
标题翻译：用于传送信号的电路布置形成本地MR线圈到评估单元
公开(公告)号：US07170293B2
公开(公告)日：2007-01-30
申请号：US11224831
申请日：2005-09-13
申请人： Helmut Kess
发明人： Helmut Kess
IPC分类号： G01V3/00
CPC分类号： G01R33/3685 , G01R33/341
摘要： A circuit arrangement for connection of at least two local coils of a magnetic resonance apparatus with at least two evaluation units has at least two sheath wave barriers arranged so that magnetic fields caused by them substantially cancel one another.
摘要翻译：用于将磁共振装置的至少两个局部线圈与至少两个评估单元连接的电路装置具有布置成使得由它们引起的磁场基本相互抵消的至少两个鞘波屏障。

20. 发明授权

US5280249A Circularly polarizing local antenna for a nuclear magnetic resonance apparatus 失效
标题翻译：用于核磁共振设备的圆极化本地天线
公开(公告)号：US5280249A
公开(公告)日：1994-01-18
申请号：US970055
申请日：1992-11-02
申请人： Helmut Kess
发明人： Helmut Kess
IPC分类号： A61B5/055 , G01R33/34 , G01R33/341 , H01Q7/00 , G01V3/00
CPC分类号： G01R33/3678 , H01Q7/005 , G01R33/365
摘要： In a circularly polarizing local antenna for a nuclear magnetic resonance imaging apparatus, a first antenna system is fashioned as a frame coil. A second antenna system has two sub-coils arranged lying opposite one another, which are both penetrated by the frame coil. The combination of the first and second antenna systems exhibits a circularly polarizing characteristic in a volume that lies inside the frame coil and outside the subcoils.
摘要翻译：在用于核磁共振成像装置的圆偏振局部天线中，第一天线系统被形成为框架线圈。第二天线系统具有彼此相对布置的两个子线圈，它们都被框架线圈穿透。第一和第二天线系统的组合在体积内表现出圆形极化特性，该体积位于框架线圈内部并且在次线圈外部。

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