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公开(公告)号：US09407843B2
公开(公告)日：2016-08-02
申请号：US14061557
申请日：2013-10-23
Applicant: General Electric Company
Inventor： Jianjun Guo , Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , Sergei Ivanovich Dolinsky
CPC classification number: H04N5/361 , G01J1/18 , G01J2001/186 , G01J2001/444 , G01T1/249 , H01L31/02164 , H04N5/2176
Abstract: A compensating current is applied at one or more points in a signal processing path to compensate for one or both of a dark or offset current present in an input signal. In certain implementations, the dark or offset current is present in a signal generated by a photomultiplier device. The dark or offset current may be monitored in an output of the signal processing path and, the monitoring being used to determine how much compensation is needed in the signal processing path and to allocate where in the signal processing path the compensation current will be applied.
Abstract translation: 在信号处理路径中的一个或多个点处施加补偿电流以补偿输入信号中存在的暗或偏移电流中的一个或两个。 在某些实施方案中，暗或偏移电流存在于由光电倍增器装置产生的信号中。 可以在信号处理路径的输出中监视暗或偏移电流，并且监视用于确定在信号处理路径中需要多少补偿并且在信号处理路径中分配补偿电流将被施加的位置。
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2.发明申请LOW IMPEDANCE INTERFACE CIRCUIT TO MAXIMIZE BANDWIDTH AND PROVIDE BIAS CONTROL 有权低阻抗接口电路，最大限度地增加带宽和提供偏置控制公开(公告)号：US20140224963A1
公开(公告)日：2014-08-14
申请号：US13764960
申请日：2013-02-12
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Jianjun Guo , Sergei Ivanovich Dolinsky , Changlyong Kim , James Lindgren Malaney , David Leo McDaniel , William Peterson
IPC: G01T1/29
CPC classification number: G01T1/2985 , A61B6/037 , G01R33/481 , G01T1/1603 , G01T1/1647
Abstract: A multichannel application specific integrated circuit (ASIC) for interfacing with an array of photodetectors in a positron emission tomography (PET) imaging system includes a front end circuit configured to be coupled to the photodetectors and to receive discrete analog signals therefrom. The ASIC further includes a time discriminating circuit operably coupled to the front end circuit and configured to generate a hit signal based on a combination of the discrete analog signals, and an energy discriminating circuit operably coupled to the front end circuit and configured to generate a summed energy output signal based on each of the discrete analog signals and summed row and column output signals based on each of the discrete analog signals. The summed energy output signal represents an energy level of the detected radiation in the array of photodetectors, and the summed row and column output signals represent a location of the detected radiation.
Abstract translation: 用于与正电子发射断层摄影（PET）成像系统中的光电检测器阵列接口的多通道专用集成电路（ASIC）包括被配置为耦合到光电检测器并从其接收分立的模拟信号的前端电路。 ASIC还包括时间鉴别电路，其可操作地耦合到前端电路并且被配置为基于离散模拟信号的组合产生命中信号，以及能量鉴别电路，其可操作地耦合到前端电路并且被配置为生成相加的 基于每个离散模拟信号的能量输出信号和基于每个离散模拟信号的相加的行和列输出信号。 相加的能量输出信号表示光电检测器阵列中检测到的辐射的能级，并且相加的行和列输出信号表示检测到的辐射的位置。
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公开(公告)号：US09405023B2
公开(公告)日：2016-08-02
申请号：US13764960
申请日：2013-02-12
Applicant: General Electric Company
Inventor： Jianjun Guo , Sergei Ivanovich Dolinsky , Changlyong Kim , James Lindgren Malaney , David Leo McDaniel , William Peterson
CPC classification number: G01T1/2985 , A61B6/037 , G01R33/481 , G01T1/1603 , G01T1/1647
Abstract: A multichannel application specific integrated circuit (ASIC) for interfacing with an array of photodetectors in a positron emission tomography (PET) imaging system includes a front end circuit configured to be coupled to the photodetectors and to receive discrete analog signals therefrom. The ASIC further includes a time discriminating circuit operably coupled to the front end circuit and configured to generate a hit signal based on a combination of the discrete analog signals, and an energy discriminating circuit operably coupled to the front end circuit and configured to generate a summed energy output signal based on each of the discrete analog signals and summed row and column output signals based on each of the discrete analog signals. The summed energy output signal represents an energy level of the detected radiation in the array of photodetectors, and the summed row and column output signals represent a location of the detected radiation.
Abstract translation: 用于与正电子发射断层摄影（PET）成像系统中的光电检测器阵列接口的多通道专用集成电路（ASIC）包括被配置为耦合到光电检测器并从其接收分立的模拟信号的前端电路。 ASIC还包括时间鉴别电路，其可操作地耦合到前端电路并且被配置为基于离散模拟信号的组合产生命中信号，以及能量鉴别电路，其可操作地耦合到前端电路并且被配置为生成相加的 基于每个离散模拟信号的能量输出信号和基于每个离散模拟信号的相加的行和列输出信号。 相加的能量输出信号表示光电检测器阵列中检测到的辐射的能级，并且相加的行和列输出信号表示检测到的辐射的位置。
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公开(公告)号：US20150108328A1
公开(公告)日：2015-04-23
申请号：US14061557
申请日：2013-10-23
Applicant: General Electric Company
Inventor： Jianjun Guo , Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , Sergei Ivanovich Dolinsky
CPC classification number: H04N5/361 , G01J1/18 , G01J2001/186 , G01J2001/444 , G01T1/249 , H01L31/02164 , H04N5/2176
Abstract: A compensating current is applied at one or more points in a signal processing path to compensate for one or both of a dark or offset current present in an input signal. In certain implementations, the dark or offset current is present in a signal generated by a photomultiplier device. The dark or offset current may be monitored in an output of the signal processing path and, the monitoring being used to determine how much compensation is needed in the signal processing path and to allocate where in the signal processing path the compensation current will be applied.
Abstract translation: 在信号处理路径中的一个或多个点处施加补偿电流以补偿输入信号中存在的暗或偏移电流中的一个或两个。 在某些实施方案中，暗或偏移电流存在于由光电倍增器装置产生的信号中。 可以在信号处理路径的输出中监视暗或偏移电流，并且监视用于确定在信号处理路径中需要多少补偿并且在信号处理路径中分配补偿电流将被施加的位置。
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