Method and Arrangements for Increasing the Security of Transponder Systems, Particularly for Access to Automobiles
    1.
    发明申请
    Method and Arrangements for Increasing the Security of Transponder Systems, Particularly for Access to Automobiles 审中-公开
    提高转发器系统安全性的方法和安排,尤其是获取汽车的安全

    公开(公告)号:US20080024322A1

    公开(公告)日:2008-01-31

    申请号:US10562249

    申请日:2004-06-17

    IPC分类号: G07C9/00 G06K19/07 G06K7/00

    摘要: It is proposed that passive wireless transponder systems used in the context of procedures for access identification be provided with signaling that can be perceived by human beings. This also makes it possible to detect that a relay attack, which is difficult to prevent, is being carried out. Attention is also drawn to other types of manipulative interference with the communication and to certain problems with the high-frequency transmission. By the employment of comparatively inexpensive and highly reliable means, this near-simultaneous perception of an identifying process for access purposes produces a very effective reduction in such threats to the security of the system. Other simple measures may have an advantageous effect in connection therewith. The signaling may also assist an ergonomic process. For example, an automobile entry or access system that is not specifically actuated, referred to as a passive keyless entry system, may be improved.

    摘要翻译: 提出在用于访问识别的程序的上下文中使用的被动无线应答器系统被提供可被人感知的信令。 这也使得可以检测到正在执行难以防止的中继攻击。 还要注意其他类型的与通信的操纵干扰和高频传输的某些问题。 通过使用相对便宜和高度可靠的手段,这种接近目的的识别过程的近似同时的感知可以非常有效地减少对系统的安全性的这种威胁。 其他简单的措施可能与其有关的有益效果。 信令也可以帮助人体工程学的过程。 例如,可以改进未被特别致动的汽车进入或接入系统,被称为无源无钥匙进入系统。

    Miniaturized multiband antenna
    2.
    发明申请
    Miniaturized multiband antenna 审中-公开
    小型化多频天线

    公开(公告)号:US20050219124A1

    公开(公告)日:2005-10-06

    申请号:US10517689

    申请日:2003-06-11

    CPC分类号: H01Q1/38 H01Q1/243 H01Q5/378

    摘要: The invention relates to an antenna comprising a dielectric substrate (1) and two resonant printed wiring structures, more particularly for use in high-frequency and microwave domain. On an end face of the structure (2) is arranged along a first edge and on an opposite, second edge of the same end face a second printed wiring structure (3). The arrangement of the printed wiring structures provides that resonances are developed which make the use of the proposed antennas in the four separate GPS, DCS/PCS, UMTS and Bluetooth applications possible.

    摘要翻译: 本发明涉及一种包括电介质基片(1)和两个共振印刷线路结构的天线,更具体地说是用于高频和微波领域。 在结构(2)的端面上沿着第一边缘并且在相同端面的相对的第二边缘上布置第二印刷布线结构(3)。 印刷布线结构的布置提供了共振,其使得可以在四个单独的GPS,DCS / PCS,UMTS和蓝牙应用中使用所提出的天线。

    Method to drive a high-voltage tube grid
    3.
    发明授权
    Method to drive a high-voltage tube grid 失效
    驱动高压管网的方法

    公开(公告)号:US08482949B2

    公开(公告)日:2013-07-09

    申请号:US12526641

    申请日:2008-02-11

    IPC分类号: H02M7/5387

    摘要: A method and device for operating a device for high-voltage switching for driving capacitive loads, having a first and a second input terminal (11, 12) for applying a high voltage supply, such that a higher potential of the high-voltage supply may be applied to the first input terminal (11) and a lower potential may be applied to the second input terminal (12); a first and a second switch (S1, S2), connected in series between the first and the second input terminal (11, 12); a first and a second clamping diode (D3, D4), connected in series and in the same blocking direction between the first input terminal and the second input terminal, such that the first second clamping diode block with respect to the applied high voltage; a storage inductor Ls, which is connected with one of its terminals to a connecting point (13) of the both switches and with another terminal to a connecting point (14) of the both clamping diodes; and an output terminal (15) for connecting a capacitive load Cl, which output terminal is connected with the connecting point (14) of the both clamping diodes (D3, D4). The method comprises starting with both switches (S1, S2) open; closing of the first switch (S1) after a first predetermined time; opening (ST3) of the first switch (S1) after a second predetermined time; closing (ST4) of the second switch (S2), after arriving a zero voltage over the second switch.

    摘要翻译: 一种用于操作用于驱动电容性负载的用于高压开关的装置的方法和装置,具有用于施加高压电源的第一和第二输入端子(11,12),使得高电压电源的较高电位可以 施加到第一输入端子(11),并且较低的电位可以施加到第二输入端子(12); 第一和第二开关(S1,S2),串联连接在第一和第二输入端子(11,12)之间; 第一和第二钳位二极管(D3,D4),其在第一输入端子和第二输入端子之间串联连接并且以相同的阻挡方向,使得相对于所施加的高电压的第一第二钳位二极管块; 存储电感器Ls,其与其一个端子连接到两个开关的连接点(13),并且另一个端子连接到两个钳位二极管的连接点(14); 以及用于连接电容性负载C1的输出端子(15),该输出端子与两个钳位二极管(D3,D4)的连接点(14)连接。 该方法包括从两个开关(S1,S2)开始; 在第一预定时间之后关闭第一开关(S1); 在第二预定时间之后打开(ST3)第一开关(S1); 在第二开关上达到零电压之后关闭(ST4)第二开关(S2)。

    Dual-colour pyrometric measurement of X-ray focal spot temperature
    4.
    发明授权
    Dual-colour pyrometric measurement of X-ray focal spot temperature 失效
    双色高温测量X射线焦斑温度

    公开(公告)号:US07949100B2

    公开(公告)日:2011-05-24

    申请号:US12294502

    申请日:2007-03-15

    IPC分类号: H01J35/00

    CPC分类号: H05G1/36 G01J5/602 H01J35/26

    摘要: An x-ray tube disclosed here in includes an emitter arranged to emit electrons on to a focal spot on a rotatable anode. The x-ray tube also includes a hollow tube arranged to receive electromagnetic radiation from the focal spot at one end of the hollow tube and transmit it to another end. The x-ray tube also includes two or more sensors arranged to detect the electromagnetic radiation through the hollow tube.

    摘要翻译: 这里公开的X射线管包括发射器,其发射电子到可旋转阳极上的焦斑上。 X射线管还包括中空管,该中空管布置成在中空管的一端处接收来自焦点的电磁辐射并将其传送到另一端。 X射线管还包括两个或更多个传感器,其布置成检测通过中空管的电磁辐射。

    Non-reciprocal component and method for making and using the component in a mobile terminal
    5.
    发明授权
    Non-reciprocal component and method for making and using the component in a mobile terminal 有权
    用于制造和使用移动终端中的组件的不可逆分量和方法

    公开(公告)号:US07936230B2

    公开(公告)日:2011-05-03

    申请号:US12498730

    申请日:2009-07-07

    IPC分类号: H01P1/38

    CPC分类号: H01P1/38 Y10T29/49016

    摘要: The invention relates to a non-reciprocal component comprising: a ferrite substrate having a first side and an opposing second side located on a ground layer, a first metal line and a second metal line are located on the ferrite substrate in parallel to each other. To provide a non-reciprocal component having small dimensions and which could be integrated. The ferrite substrate is magnetized parallel to the metal lines and each of the metal lines is running at least from one side of the ferrite substrate to the other side and back forming thereby at least one meander loop, wherein the loops are interlaced to each other and the metal lines are isolated in an area of the loop.

    摘要翻译: 本发明涉及一种不可逆部件,包括:铁氧体基板,其具有位于接地层上的第一侧和相对的第二侧,第一金属线和第二金属线彼此平行地位于铁氧体基板上。 提供具有小尺寸并且可以集成的不可逆部件。 铁氧体衬底被平行于金属线磁化,并且每个金属线至少从铁氧体衬底的一侧运行到另一侧,并且由此形成至少一个弯曲环,其中环彼此交织, 金属线在环路的一个区域被隔离。

    Multi-tube imaging system scatter correction
    6.
    发明授权
    Multi-tube imaging system scatter correction 有权
    多管成像系统散射校正

    公开(公告)号:US07680241B2

    公开(公告)日:2010-03-16

    申请号:US12305458

    申请日:2007-06-13

    IPC分类号: A61B6/00

    摘要: A computed tomography reconstruction method includes concurrently emitting radiation from at least two x-ray sources (14), switching the output state of each of the at least two x-ray sources (14) within a plurality of respective cross scatter sampling intervals (50, 52, 54, 56) and detecting with a corresponding one of the sets of detectors (24) cross scatter radiation emitted by the other at least two x-ray sources (14), wherein the cross scatter sampling intervals are angularly spaced over a plurality of frames to allow the at least two x-ray sources (14) to concurrently emit radiation throughout at least one frame, deriving scatter correction data for each set of detectors (24) from corresponding cross scatter samples, scatter correcting the projection data with corresponding scatter correction data, and reconstructing the scatter corrected projection data to generate at least one image.

    摘要翻译: 计算机断层摄影重建方法包括同时从至少两个X射线源(14)发射辐射,在多个相应的交叉散射采样间隔(50)内切换所述至少两个X射线源(14)中的每一个的输出状态 ,52,54,56),并且用所述检测器组(24)中的对应的一组检测由所述另外的至少两个x射线源(14)发射的散射辐射,其中所述交叉散射采样间隔在 多个帧以允许至少两个x射线源(14)同时在至少一个帧中发射辐射,从相应的交叉散射样本导出每组检测器(24)的散射校正数据,利用 对应的散射校正数据,以及重建散射校正投影数据以生成至少一个图像。

    Multiple focal spot X-ray radiation filtering
    7.
    发明授权
    Multiple focal spot X-ray radiation filtering 有权
    多焦点X射线辐射过滤

    公开(公告)号:US09424958B2

    公开(公告)日:2016-08-23

    申请号:US14117869

    申请日:2012-05-30

    摘要: For the generation of multiple-energy X-ray radiation, an X-ray tube (10) for generating multiple-energy X-ray radiation includes an anode (12) and a filter (14). At least a first (16) and a second focal spot position (18) are offset from each other in an offset direction (20) transverse to an X-ray radiation projection direction. The filter includes a first plurality (22) of first portions (24) with first filtering characteristics for X-ray radiation and a second plurality (26) of second portions (28) with second filtering characteristics for X-ray radiation. The filter is a directional filter adapted in a such a way that at least a first X-ray beam (30) emanating from the first focal spot position at least partly passes through the filter unit via the first portions, and a second X-ray beam (32) emanating from the second focal spot position passes obliquely through the first and the second portions when passing through the filter unit.

    摘要翻译: 为了产生多能量X射线辐射,用于产生多能X射线辐射的X射线管(10)包括阳极(12)和过滤器(14)。 至少第一(16)和第二焦斑位置(18)在横向于X射线辐射投影方向的偏移方向(20)上彼此偏移。 滤波器包括具有用于X射线辐射的第一滤波特性的第一多个第一部分(22)和具有用于X射线辐射的第二滤波特性的第二多个第二部分(26)。 过滤器是一种定向过滤器,其适于使得从第一焦点位置发出的至少第一X射线束(30)至少部分地经由第一部分穿过过滤器单元,并且第二X射线 从第二焦点位置发出的光束(32)在通过过滤器单元时倾斜地穿过第一和第二部分。

    Electron collecting element with increased thermal loadability, X-ray generating device and X-ray system
    8.
    发明授权
    Electron collecting element with increased thermal loadability, X-ray generating device and X-ray system 有权
    具有增加热负荷能力的电子收集元件,X射线产生装置和X射线系统

    公开(公告)号:US08654927B2

    公开(公告)日:2014-02-18

    申请号:US13502540

    申请日:2010-10-18

    申请人: Rainer Pietig

    发明人: Rainer Pietig

    IPC分类号: H01J35/12 G01N23/04

    摘要: The present invention relates to X-ray generating technology in general. Providing an electron collecting element of an X-ray generating device statically may allow for the manufacture of X-ray systems with reduced moving parts and actuating parts, possibly reducing manufacturing costs and sources for failure. Consequently, an electron collecting element with increased thermal loadability is presented. According to the present invention, an electron collecting element (28) is provided, comprising a surface element (22) and a heat conducting element (26). The heat conducting element (26) comprises a first thermal conductivity in a first direction and at least a second thermal conductivity in at least a second direction. The first thermal conductivity is greater than the second thermal conductivity. The first direction is substantially perpendicular to the surface element (22).

    摘要翻译: 本发明一般涉及X射线产生技术。 静态地提供X射线产生装置的电子收集元件可以允许制造具有减少的移动部件和致动部件的X射线系统,可能降低制造成本和故障源。 因此,提出了具有增加的热负荷能力的电子收集元件。 根据本发明,提供一种电子收集元件(28),其包括表面元件(22)和导热元件(26)。 导热元件(26)包括在第一方向上的第一热导率和至少第二方向上的至少第二热导率。 第一导热系数大于第二导热系数。 第一方向基本上垂直于表面元件(22)。

    MULTIFRAME X-RAY DETECTOR FOR IMAGING SYSTEM WITH DISTRIBUTED X-RAY SOURCES
    10.
    发明申请
    MULTIFRAME X-RAY DETECTOR FOR IMAGING SYSTEM WITH DISTRIBUTED X-RAY SOURCES 有权
    用于具有分布式X射线源的成像系统的多帧X射线探测器

    公开(公告)号:US20130003928A1

    公开(公告)日:2013-01-03

    申请号:US13583093

    申请日:2011-03-04

    IPC分类号: H05G1/64

    CPC分类号: G01T1/247 G01T1/17 H04N5/32

    摘要: Device and method for synchronously switching activating a first and second charge accumulation section (31, 32) for a duration of a first and second predetermined sub-frame and a first and second X-ray source until lapse of a predetermined time frame for each of the first and second charge accumulation section (31, 32) for the accumulation of a plurality of temporally distributed partial charges according to an origin of a respective one of the plurality of spatially distributed X-ray sources so as to establish a specific relation between the focal spot position and a rule for accumulating the respective partial measurements, e.g. temporally distributed partial charges, belonging to the same focal spot positions, and to keep the focal spot temperature low by only activating the focal spot for a limited time according to a sub-frame.

    摘要翻译: 用于在第一和第二预定子帧和第一和第二X射线源的持续时间内同步切换激活第一和第二电荷累积部分(31,32)的装置和方法,直到经过预定时间帧 第一和第二电荷累积部分,用于根据多个空间分布的X射线源中的相应一个的原点累积多个时间分布的部分电荷,以便建立所述多个时间分布的部分电荷之间的特定关系 焦点位置和用于累积各个部分测量的规则,例如 属于相同焦点位置的时间分布的部分电荷,并且通过仅根据子帧激活有限时间的焦点来将焦点温度保持在低温。