Image quality in photon counting-mode detector systems
    1.
    发明授权
    Image quality in photon counting-mode detector systems 有权
    光子计数模式检测器系统中的图像质量

    公开(公告)号:US08378310B2

    公开(公告)日:2013-02-19

    申请号:US12707076

    申请日:2010-02-17

    IPC分类号: G01T1/24

    摘要: The current invention applies to photon counting silicon x-ray detectors with energy discriminating capabilities and applications in x-ray imaging systems. The overall image quality produced by such a system is improved by the presented novel methods for optimally using the energy information in Compton events and making selective use of counts induced from charges collected in neighboring pixels. The pile-up problem during high-flux imaging regimes is reduced by a novel method for signal reset, which improves the count efficiency by reducing the risk of losing event due to signal pile-up in the read out electronics chain.

    摘要翻译: 本发明适用于具有能量鉴别能力和x射线成像系统中的应用的光子计数硅x射线检测器。 通过提出的用于最佳地使用康普顿事件中的能量信息的新颖方法并且选择性地使用从相邻像素中收集的电荷引起的计数来改善由这样的系统产生的整体图像质量。 高通量成像方案中的堆积问题通过一种用于信号复位的新颖方法来减少,通过降低由于读出的电子链中的信号堆积而导致的事件丢失的风险,提高了计数效率。

    IMAGE QUALITY IN PHOTON COUNTING-MODE DETECTOR SYSTEMS
    2.
    发明申请
    IMAGE QUALITY IN PHOTON COUNTING-MODE DETECTOR SYSTEMS 有权
    光电计数模式检测系统的图像质量

    公开(公告)号:US20100215230A1

    公开(公告)日:2010-08-26

    申请号:US12707076

    申请日:2010-02-17

    IPC分类号: G06K9/40 G01T1/24

    摘要: The current invention applies to photon counting silicon x-ray detectors with energy discriminating capabilities and applications in x-ray imaging systems. The overall image quality produced by such a system is improved by the presented novel methods for optimally using the energy information in Compton events and making selective use of counts induced from charges collected in neighboring pixels. The pile-up problem during high-flux imaging regimes is reduced by a novel method for signal reset, which improves the count efficiency by reducing the risk of losing event due to signal pile-up in the read out electronics chain.

    摘要翻译: 本发明适用于具有能量鉴别能力和x射线成像系统中的应用的光子计数硅x射线检测器。 通过提出的用于最佳地使用康普顿事件中的能量信息的新颖方法并且选择性地使用从相邻像素中收集的电荷引起的计数来改善由这样的系统产生的整体图像质量。 高通量成像方案中的堆积问题通过一种用于信号复位的新颖方法来减少,通过降低由于读出的电子链中的信号堆积而导致的事件丢失的风险,提高了计数效率。

    Composite cast tool
    3.
    发明授权
    Composite cast tool 有权
    复合铸造工具

    公开(公告)号:US09427802B2

    公开(公告)日:2016-08-30

    申请号:US12920886

    申请日:2009-03-05

    IPC分类号: B22D19/16

    摘要: A composite cast tool is cast in one continuous piece, partly of steel and partly of grey iron, so that an interconnection zone is formed between the steel and the grey iron. The steel portion forms the working component of the tool, for example a cutting edge, and the grey iron portion forms the body component of the tool. The steel portion and the grey iron portion have projections or walls extending towards one another. The interconnection zone is located in the region of union between these walls and is planar.

    摘要翻译: 复合铸造工具铸造在一个连续的部件中,部分由钢制成,部分是灰铸铁,从而在钢和灰铸铁之间形成互连区。 钢部分形成工具的工作部件,例如切削刃,灰铸铁部分形成工具的主体部件。 钢部分和灰铸铁部分具有朝向彼此延伸的突出部或壁部。 互连区域位于这些壁之间的并联区域中并且是平面的。

    Methods and QAM Receiver for Performing Timing Recovery
    4.
    发明申请
    Methods and QAM Receiver for Performing Timing Recovery 有权
    用于执行定时恢复的方法和QAM接收器

    公开(公告)号:US20140219396A1

    公开(公告)日:2014-08-07

    申请号:US14346411

    申请日:2011-09-23

    申请人: Christer Svensson

    发明人: Christer Svensson

    IPC分类号: H04L27/06

    摘要: A method in a QAM receiver (100) for performing timing recovery. The QAM receiver (100) is configured to receive a sequence of symbols. Each symbol is represented by a respective IQ pair comprising a respective inphase component I and a respective quadrature component Q. The QAM receiver (100) samples the respective I component and the respective Q component with a relative timing offset between the sampling of the respective I component and the respective Q component. The QAM receiver (100) establishes a first value associated to a quality of the I component samples, and a second value associated to a quality of the Q component samples, and compares the first value and second value to determine if the sampling timing should be advanced or delayed to improve the sample quality. The QAM receiver (100) adjusts subsequent sampling by advancing or delaying a sampling timing based on the comparison.

    摘要翻译: 一种用于执行定时恢复的QAM接收器(100)中的方法。 QAM接收器(100)被配置为接收符号序列。 每个符号由包括相应同相分量I和相应正交分量Q的相应IQ对表示.QAM接收机(100)对相应的I分量和相应的Q分量进行采样,其中相应的I分量和相应的Q分量 组件和相应的Q组件。 QAM接收器(100)建立与I分量样本的质量相关联的第一值,以及与Q分量样本的质量相关联的第二值,并且比较第一值和第二值以确定采样定时是否应当 高级或延迟提高样品质量。 QAM接收器(100)通过基于比较推进或延迟采样定时来调整随后的采样。

    METHOD OF COMPOSITE CASTING OF A ONE-PIECE CAST TOOL
    5.
    发明申请
    METHOD OF COMPOSITE CASTING OF A ONE-PIECE CAST TOOL 失效
    一体化铸造工具的复合铸造方法

    公开(公告)号:US20110123828A1

    公开(公告)日:2011-05-26

    申请号:US12920905

    申请日:2009-03-05

    IPC分类号: B22D19/16 B32B15/01

    摘要: A method of one-piece casting of a tool with a working component of steel and a body of grey iron, and an interconnection zone therebetween is carried out in a single mould which is kept closed and unchanged during the casting. The steel is cast first from beneath and upwards, whereafter a pause is made. The casting of the grey iron is only carried out when the temperature of the steel in the intended interconnection zone has fallen to a temperature corresponding to the liquidus temperature of the steel minus approx. 30° to 150° C.

    摘要翻译: 具有钢和灰铁体的工作部件的工具的一体式铸造的方法以及它们之间的互连区域在铸造过程中保持关闭且不变的单个模具中进行。 钢从下往上浇铸,然后暂停。 灰铸铁的铸造仅在预期互连区域中的钢的温度已经下降到对应于钢的液相线温度减去约的温度时进行。 30°至150°C

    Methods and QAM receiver for performing timing recovery
    7.
    发明授权
    Methods and QAM receiver for performing timing recovery 有权
    用于执行定时恢复的方法和QAM接收器

    公开(公告)号:US09001949B2

    公开(公告)日:2015-04-07

    申请号:US14346411

    申请日:2011-09-23

    申请人: Christer Svensson

    发明人: Christer Svensson

    摘要: A method in a QAM receiver (100) for performing timing recovery. The QAM receiver (100) is configured to receive a sequence of symbols. Each symbol is represented by a respective IQ pair comprising a respective inphase component I and a respective quadrature component Q. The QAM receiver (100) samples the respective I component and the respective Q component with a relative timing offset between the sampling of the respective I component and the respective Q component. The QAM receiver (100) establishes a first value associated to a quality of the I component samples, and a second value associated to a quality of the Q component samples, and compares the first value and second value to determine if the sampling timing should be advanced or delayed to improve the sample quality. The QAM receiver (100) adjusts subsequent sampling by advancing or delaying a sampling timing based on the comparison.

    摘要翻译: 一种用于执行定时恢复的QAM接收机(100)中的方法。 QAM接收器(100)被配置为接收符号序列。 每个符号由包括相应同相分量I和相应正交分量Q的相应IQ对表示.QAM接收机(100)对相应的I分量和相应的Q分量进行采样,其中相应的I分量和相应的Q分量 组件和相应的Q组件。 QAM接收器(100)建立与I分量样本的质量相关联的第一值,以及与Q分量样本的质量相关联的第二值,并且比较第一值和第二值以确定采样定时是否应当 高级或延迟提高样品质量。 QAM接收器(100)通过基于比较推进或延迟采样定时来调整随后的采样。

    Method of composite casting of a one-piece cast tool
    8.
    发明授权
    Method of composite casting of a one-piece cast tool 失效
    一体铸造工具的复合铸造方法

    公开(公告)号:US08602083B2

    公开(公告)日:2013-12-10

    申请号:US12920905

    申请日:2009-03-05

    IPC分类号: B22D19/06 B22D19/16

    摘要: A method of one-piece casting of a tool with a working component of steel and a body of grey iron, and an interconnection zone therebetween is carried out in a single mold which is kept closed and unchanged during the casting. The steel is cast first from beneath and upwards, whereafter a pause is made. The casting of the grey iron is only carried out when the temperature of the steel in the intended interconnection zone has fallen to a temperature corresponding to the liquidus temperature of the steel minus approx. 30° to 150° C.

    摘要翻译: 具有钢和灰铁体的工作部件的工具的一体式铸造的方法以及它们之间的互连区域在铸造过程中保持关闭且不变的单个模具中进行。 钢从下往上浇铸,然后暂停。 灰铸铁的铸造仅在预期互连区域中的钢的温度已经下降到对应于钢的液相线温度减去约的温度时进行。 30°至150°C

    MOULD AND A METHOD OF ITS MANUFACTURE
    9.
    发明申请
    MOULD AND A METHOD OF ITS MANUFACTURE 失效
    模具及其制造方法

    公开(公告)号:US20110120664A1

    公开(公告)日:2011-05-26

    申请号:US12920897

    申请日:2009-03-05

    IPC分类号: B22C9/00 B22C9/22

    摘要: A mould for casting in one piece of a tool with a working component of steel and a body of grey iron with an interconnection zone there between has a first model section corresponding to the working component and a second model section corresponding to the body. The model sections are in contact with one another along a contact plane which is horizontal and planar and which represents the interconnection zone. In a method for producing a mould for one piece casting of a tool with a working component of steel and a body of grey iron with an interconnection zone therebetween; a first model section is produced corresponding to the steel and a second model section corresponding to the grey iron. The model sections are brought into contact with one another with the contact surface horizontally aligned and with the first model section lowermost.

    摘要翻译: 一种用于铸造具有钢的工作部件的工具和其间具有互连区的灰色铁体的模具的模具具有对应于工作部件的第一模型部分和对应于身体的第二模型部分。 模型部分沿着水平和平面的接触平面彼此接触并且表示互连区域。 一种用于单件铸造的模具的制造方法,该模具具有钢的工作部件和其间具有互连区域的灰口铁体的工具; 产生对应于钢的第一模型部分和对应于灰铁的第二模型部分。 模型部分彼此接触,接触面水平对准,第一模型部分最低。

    Mould and a method of composite casting of a one piece cast tool
    10.
    发明授权
    Mould and a method of composite casting of a one piece cast tool 失效
    模具和单件铸造工具的复合铸造方法

    公开(公告)号:US08528624B2

    公开(公告)日:2013-09-10

    申请号:US12920889

    申请日:2009-03-05

    IPC分类号: B22D19/06 B22C9/00

    CPC分类号: B22D19/06 B22D19/16

    摘要: A mould for one piece casting of a tool, which has a working component of steel and a body of grey iron has a first mould cavity section for the steel and a second mould cavity section for the grey iron, with an interconnection zone therebetween. A dividing plane between the sections is planar and horizontal and located at the interconnection zone. A duct leads from the first section to an accommodation space for possible surplus of steel. In a method for one piece casting of a tool, which has a working component of steel and a body of grey iron with an interconnection zone therebetween, the steel is cast in a first mould cavity section and the grey iron in a second mould cavity section. A dividing plane between the mould cavity sections is planar and horizontal. An accommodation space for surplus of steel is provided to permit steel to flow from the first mould cavity section at the level of the dividing plane into the accommodation space.

    摘要翻译: 具有钢的工作部件和灰铸铁的工具的一体铸造的模具具有用于钢的第一模腔部分和用于灰口铁的第二模腔部分,其间具有互连区域。 这些部分之间的分隔平面是水平的并位于互连区域。 管道从第一部分引导到容纳空间,以便可能剩余钢。 在一种铸造工具的方法中,其具有钢的工作部件和在其间具有互连区域的灰铸铁体,钢被铸造在第一模腔部分中,并且灰铸铁在第二模腔部分中 。 模腔部分之间的分隔平面是水平的。 提供了用于多余的钢的容纳空间,以允许钢在分隔平面的高度从第一模腔部流入容纳空间。