-
公开(公告)号：US07969244B2
公开(公告)日：2011-06-28
申请号：US12173345
申请日：2008-07-15
IPC分类号： H03F3/04
CPC分类号： H03F1/301
摘要： A technique is provided for acquiring data with reduced correlated low frequency noise interference via a data acquisition circuit. The data acquisition circuit includes a plurality of data channels comprising a plurality of amplifiers and a biasing circuit for providing bias voltages to the plurality of amplifiers. The biasing circuit is configured to generate the bias voltages and establish a relationship between the bias voltages so as to reduce correlated low frequency noise in the plurality of amplifiers.
摘要翻译： 提供了一种通过数据采集电路获取具有降低的相关低频噪声干扰的数据的技术。 数据采集电路包括多个数字通道，包括多个放大器和用于向多个放大器提供偏置电压的偏置电路。 偏置电路被配置为产生偏置电压并建立偏置电压之间的关系，以便减少多个放大器中的相关低频噪声。
-
公开(公告)号：US08804909B2
公开(公告)日：2014-08-12
申请号：US13340175
申请日：2011-12-29
CPC分类号： A61B6/4233 , A61B6/5258 , A61B6/54
摘要： A method for regulating the acquisition of an analog input signal from a digital X-ray panel is provided. The method includes opening a switch disposed between an integrator and the digital X-ray panel prior to an integrator event or upon detection of a fault in the digital X-ray panel to decouple the integrator from the digital X-ray panel, wherein the integrator is configured to integrate the analog input signal from the digital X-ray panel. Also, a system for data acquisition is provided. Further, a method for fault protection of the digital X-ray panel is provided.
摘要翻译： 提供了一种用于调节从数字X射线面板获取模拟输入信号的方法。 该方法包括在积分器事件之前打开设置在积分器和数字X射线面板之间的开关，或者在检测到数字X射线面板中的故障以使积分器与数字X射线面板分离时，其中积分器 被配置为集成来自数字X射线面板的模拟输入信号。 此外，还提供了一种用于数据采集的系统。 此外，提供了一种用于数字X射线面板的故障保护的方法。
-
公开(公告)号：US20130170622A1
公开(公告)日：2013-07-04
申请号：US13340175
申请日：2011-12-29
IPC分类号： H05G1/54
CPC分类号： A61B6/4233 , A61B6/5258 , A61B6/54
摘要： A method for regulating the acquisition of an analog input signal from a digital X-ray panel is provided. The method includes opening a switch disposed between an integrator and the digital X-ray panel prior to an integrator event or upon detection of a fault in the digital X-ray panel to decouple the integrator from the digital X-ray panel, wherein the integrator is configured to integrate the analog input signal from the digital X-ray panel. Also, a system for data acquisition is provided. Further, a method for fault protection of the digital X-ray panel is provided.
摘要翻译： 提供了一种用于调节从数字X射线面板获取模拟输入信号的方法。 该方法包括在积分器事件之前打开设置在积分器和数字X射线面板之间的开关，或者在检测到数字X射线面板中的故障以使积分器与数字X射线面板分离时，其中积分器 被配置为集成来自数字X射线面板的模拟输入信号。 此外，还提供了一种用于数据采集的系统。 此外，提供了一种用于数字X射线面板的故障保护的方法。
-
公开(公告)号：US08040270B2
公开(公告)日：2011-10-18
申请号：US12393762
申请日：2009-02-26
IPC分类号： H03M1/12
摘要： According to embodiments of the present technique, a system and a method for obtaining low-noise measurements for a wide range of analog signal strengths is provided. According to aspects of the present technique, a low-gain measurement of an input pixel charge is performed, wherein the input pixel charge is distributed to two feedback capacitors, which together provide a relatively low integrator gain. After the low-gain measurement, a high-gain measurement is performed, wherein one of the capacitors is remove from the feedback loop and the charge is redistributed to the remaining capacitor.
摘要翻译： 根据本技术的实施例，提供了一种用于获得宽范围的模拟信号强度的低噪声测量的系统和方法。 根据本技术的方面，执行输入像素电荷的低增益测量，其中输入像素电荷被分配到两个反馈电容器，这两个反馈电容器一起提供相对低的积分器增益。 在低增益测量之后，执行高增益测量，其中电容器中的一个从反馈回路中去除，并且电荷被再分配到剩余电容器。
-
公开(公告)号：US20100013560A1
公开(公告)日：2010-01-21
申请号：US12173345
申请日：2008-07-15
IPC分类号： H03F3/04
CPC分类号： H03F1/301
摘要： A technique is provided for acquiring data with reduced correlated low frequency noise interference via a data acquisition circuit. The data acquisition circuit includes a plurality of data channels comprising a plurality of amplifiers and a biasing circuit for providing bias voltages to the plurality of amplifiers. The biasing circuit is configured to generate the bias voltages and establish a relationship between the bias voltages so as to reduce correlated low frequency noise in the plurality of amplifiers.
摘要翻译： 提供了一种通过数据采集电路获取具有降低的相关低频噪声干扰的数据的技术。 数据采集电路包括多个数字通道，包括多个放大器和用于向多个放大器提供偏置电压的偏置电路。 偏置电路被配置为产生偏置电压并建立偏置电压之间的关系，以便减少多个放大器中的相关低频噪声。
-
公开(公告)号：US20100215146A1
公开(公告)日：2010-08-26
申请号：US12393762
申请日：2009-02-26
摘要： According to embodiments of the present technique, a system and a method for obtaining low-noise measurements for a wide range of analog signal strengths is provided. According to aspects of the present technique, a low-gain measurement of an input pixel charge is performed, wherein the input pixel charge is distributed to two feedback capacitors, which together provide a relatively low integrator gain. After the low-gain measurement, a high-gain measurement is performed, wherein one of the capacitors is remove from the feedback loop and the charge is redistributed to the remaining capacitor.
摘要翻译： 根据本技术的实施例，提供了一种用于获得宽范围的模拟信号强度的低噪声测量的系统和方法。 根据本技术的方面，执行输入像素电荷的低增益测量，其中输入像素电荷被分配到两个反馈电容器，这两个反馈电容器一起提供相对低的积分器增益。 在低增益测量之后，执行高增益测量，其中电容器中的一个从反馈回路中去除，并且电荷被再分配到剩余电容器。
-
7.发明授权公开(公告)号：US08044681B2
公开(公告)日：2011-10-25
申请号：US12199039
申请日：2008-08-27
IPC分类号： H03K19/173
摘要： An application-specific integrated circuit (ASIC) comprising a plurality of channels, each channel having circuitry for time and energy discrimination, a plurality of programmable registers, each programmable register configured to output at least one configuration parameter for the circuitry, and a channel-select register configured to identify a channel of the plurality of channels to be configured. The ASIC further includes a configuration-select register configured to identify the programmable register to be used for channel configuration, and a communications interface configured to transmit instructions received from a controller to one of the channel-select register, the configuration-select register, and the plurality of programmable registers.
摘要翻译： 一种专用集成电路（ASIC），包括多个通道，每个通道具有用于时间和能量鉴别的电路，多个可编程寄存器，每个可编程寄存器被配置为输出用于该电路的至少一个配置参数， 选择寄存器，其被配置为识别要配置的多个信道的信道。 ASIC还包括配置选择寄存器，配置为识别要用于信道配置的可编程寄存器，以及通信接口，被配置为将从控制器接收的指令发送到频道选择寄存器，配置选择寄存器和 多个可编程寄存器。
-
8.发明申请公开(公告)号：US20090132789A1
公开(公告)日：2009-05-21
申请号：US12199039
申请日：2008-08-27
IPC分类号： G06F15/76
摘要： An application-specific integrated circuit (ASIC) comprising a plurality of channels, each channel having circuitry for time and energy discrimination, a plurality of programmable registers, each programmable register configured to output at least one configuration parameter for the circuitry, and a channel-select register configured to identify a channel of the plurality of channels to be configured. The ASIC further includes a configuration-select register configured to identify the programmable register to be used for channel configuration, and a communications interface configured to transmit instructions received from a controller to one of the channel-select register, the configuration-select register, and the plurality of programmable registers.
摘要翻译： 一种专用集成电路（ASIC），包括多个通道，每个通道具有用于时间和能量鉴别的电路，多个可编程寄存器，每个可编程寄存器被配置为输出用于该电路的至少一个配置参数， 选择寄存器，其被配置为识别要配置的多个信道的信道。 ASIC还包括配置选择寄存器，配置为识别要用于信道配置的可编程寄存器，以及通信接口，被配置为将从控制器接收的指令发送到频道选择寄存器，配置选择寄存器和 多个可编程寄存器。
-
9.发明申请DATA ACQUISITION SYSTEM FOR PHOTON COUNTING AND ENERGY DISCRIMINATING DETECTORS 有权用于光电计数和能量鉴别检测器的数据采集系统公开(公告)号：US20090129537A1
公开(公告)日：2009-05-21
申请号：US12198989
申请日：2008-08-27
CPC分类号： G06G7/18
摘要： A data acquisition system including a readout Application Specific Integrated Circuit (ASIC) having a plurality of channels, each channel having a time discriminating circuit and an energy discriminating circuit, wherein the ASIC is configured to receive a plurality of signals from a semiconductor radiation detector. The data acquisition system also includes a digital-to-analog converter (DAC) electrically coupled to the ASIC and configured to provide a reference signal to the ASIC used in the generation of digital outputs from the ASIC, and a controller electrically coupled to the ASIC and to the DAC, the controller configured to instruct the DAC to provide the reference signal to the ASIC.
摘要翻译： 一种数据采集系统，包括具有多个通道的读出专用集成电路（ASIC），每个通道具有时间鉴别电路和能量识别电路，其中ASIC被配置为从半导体辐射检测器接收多个信号。 数据采集系统还包括电耦合到ASIC的数模转换器（DAC），并被配置为向ASIC中产生数字输出使用的ASIC提供参考信号，以及电耦合到ASIC的控制器 并且所述控制器被配置为指示所述DAC向所述ASIC提供所述参考信号。
-
10.发明授权Readout electronics for photon counting and energy discriminating detectors 有权用于光子计数和能量鉴别检测器的读出电子装置公开(公告)号：US08384038B2
公开(公告)日：2013-02-26
申请号：US12490903
申请日：2009-06-24
IPC分类号： G01T1/24
CPC分类号： G01T1/247
摘要： A data acquisition system includes a charge-sensitive amplifier (CSA) configured to receive a charge from an x-ray detector, the CSA includes a high-gain electronic voltage amplifier, an electrical energy storage device coupled with the amplifier, and an electrical resistor coupled with the amplifier. The data acquisition system includes a baseline sampling circuit configured to receive an output from the CSA and to sample a baseline signal from the CSA, at least one discriminator coupled to an output of the CSA and to an output of the baseline sampling circuit, the at least one discriminator configured to output a voltage if the output of the CSA exceeds a threshold, and a counter coupled to an output of the discriminator and configured to output a digital signal indicative of a photon count received at the x-ray detector and based on the output from the CSA and on the signal from the CSA.
摘要翻译： 数据采集系统包括被配置为从X射线检测器接收电荷的电荷敏感放大器（CSA），CSA包括高增益电子电压放大器，与放大器耦合的电能存储装置和电阻器 加上放大器。 数据采集系统包括基准采样电路，其被配置为从CSA接收输出并从CSA采样基线信号，耦合到CSA的输出和基线采样电路的输出的至少一个鉴别器， 如果所述CSA的输出超过阈值，则配置成输出电压的至少一个鉴别器，以及耦合到所述鉴别器的输出并被配置为输出指示在所述x射线检测器处接收的光子计数的数字信号的计数器，并且基于 CSA的输出和CSA的信号。
-
-
-
-
-
-
-
-
-
搜索结果
48 条记录 (耗时 0.019 秒)
