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    • 1. 发明申请
    • Positron Emission Tomography Block Detector Interconnect
    • 正电子发射断层扫描检测器互连
    • US20130062525A1
    • 2013-03-14
    • US13229797
    • 2011-09-12
    • James Frank CarubaNiraj K. DoshiJohn W. YoungNan Zhang
    • James Frank CarubaNiraj K. DoshiJohn W. YoungNan Zhang
    • G01T1/20G01T1/164
    • G01T1/1648
    • Using standard or “off the shelf” cable to interconnect between the PET block detector and the detector circuit may save substantial costs given the number of PMTs in a PET system. Given space constraints, simple maintenance with reduced risk of disturbing cabling is desired, making ongoing use of standard cabling without adding further cabling desired. To implement digital gain control, a further communication is provided between the PET detector block and the detector circuit. Since the standard cable may not have additional wires for such communications and to reduce timing degradation, the PMT signals are combined, such as generating position and energy signals at the PET detector block. The four PMT signals are reduced to three signals without reduction in function, allowing a fourth twisted pair of wires in a CAT5 cable to be used for digital gain control.
    • 使用标准或现货电缆在PET块检测器和检测器电路之间进行互连可以节省大量成本,因为PET系统中PMT的数量。 鉴于空间限制,需要简单的维护,减少干扰布线的风险,不断增加布线需求,不断使用标准布线。 为了实现数字增益控制,在PET检测器块和检测器电路之间提供进一步的通信。 由于标准电缆可能没有用于这种通信的附加电线并且减少定时劣化,所以组合PMT信号,例如在PET检测器块处产生位置和能量信号。 四个PMT信号减少到三个信号,而不会降低功能,允许CAT5电缆中的第四根双绞线用于数字增益控制。
    • 2. 发明授权
    • Positron emission tomography block detector interconnect
    • 正电子发射断层摄影块检测器互连
    • US08735836B2
    • 2014-05-27
    • US13229797
    • 2011-09-12
    • James Frank CarubaNiraj K DoshiJohn W YoungNan Zhang
    • James Frank CarubaNiraj K DoshiJohn W YoungNan Zhang
    • G01T1/164
    • G01T1/1648
    • Using standard or “off the shelf” cable to interconnect between the PET block detector and the detector circuit may save substantial costs given the number of PMTs in a PET system. Given space constraints, simple maintenance with reduced risk of disturbing cabling is desired, making ongoing use of standard cabling without adding further cabling desired. To implement digital gain control, a further communication is provided between the PET detector block and the detector circuit. Since the standard cable may not have additional wires for such communications and to reduce timing degradation, the PMT signals are combined, such as generating position and energy signals at the PET detector block. The four PMT signals are reduced to three signals without reduction in function, allowing a fourth twisted pair of wires in a CAT5 cable to be used for digital gain control.
    • 使用标准或“现成”电缆在PET块检测器和检测器电路之间进行互连可以节省大量成本,因为PET系统中PMT的数量。 鉴于空间限制,需要简单的维护,减少干扰布线的风险,不断增加布线需求,不断使用标准布线。 为了实现数字增益控制,在PET检测器块和检测器电路之间提供进一步的通信。 由于标准电缆可能没有用于这种通信的附加电线并且减少定时劣化,所以组合PMT信号,例如在PET检测器块处产生位置和能量信号。 四个PMT信号减少到三个信号而不减少功能,允许CAT5电缆中的第四根双绞线用于数字增益控制。
    • 3. 发明授权
    • Data processing system for multi-modality imaging
    • 多模态成像数据处理系统
    • US08369928B2
    • 2013-02-05
    • US12564635
    • 2009-09-22
    • Roger E. ArseneauJames Frank CarubaMichael E. CaseyMark MusrockNan Zhang
    • Roger E. ArseneauJames Frank CarubaMichael E. CaseyMark MusrockNan Zhang
    • A61B5/05
    • G01T1/1603A61B6/037A61B6/5247
    • A data processing process and embodiment for optimizing the signal path for multi-modality imaging is described. The embodiment and process optimizes the signal to noise ratio in a positron emission tomography (PET) signal path utilizing scintillation crystals, avalanche photo diodes, and charge sensitive preamplifiers in a dual modality MRI/PET scanner. The dual use of both and analog pole zero circuit and a digital filter enables higher signal levels or a fixed ADC input range and thus a higher possible signal to noise ratio in the presence of significant pileup caused by high positron activity. The higher signal to noise ratio is needed in the PET signal architecture, because of the presence of non-modal time varying electromagnetic fields from the MR, which are a significant source of noise for the wideband PET signal modality.
    • 描述了用于优化用于多模态成像的信号路径的数据处理过程和实施例。 实施例和过程利用双重模式MRI / PET扫描器中的闪烁晶体,雪崩光电二极管和电荷敏感前置放大器在正电子发射断层摄影(PET)信号路径中优化信噪比。 双重使用模拟极零电路和数字滤波器可实现更高的信号电平或固定的ADC输入范围,从而在存在由高正电子活动引起的重大堆积的情况下,可能的信噪比更高。 在PET信号架构中需要更高的信噪比,因为存在来自MR的非模态时变电磁场,这是对于宽带PET信号模态的噪声的重要来源。
    • 4. 发明申请
    • DATA PROCESSING SYSTEM FOR MULTI-MODALITY IMAGING
    • 用于多模式成像的数据处理系统
    • US20100076300A1
    • 2010-03-25
    • US12564635
    • 2009-09-22
    • Roger E. ArseneauJames Frank CarubaMichael E. CaseyMark MusrockNan Zhang
    • Roger E. ArseneauJames Frank CarubaMichael E. CaseyMark MusrockNan Zhang
    • A61B5/055
    • G01T1/1603A61B6/037A61B6/5247
    • A data processing process and embodiment for optimizing the signal path for multi-modality imaging is described. The embodiment and process optimizes the signal to noise ratio in a positron emission tomography (PET) signal path utilizing scintillation crystals, avalanche photo diodes, and charge sensitive preamplifiers in a dual modality MRI/PET scanner. The dual use of both and analog pole zero circuit and a digital filter enables higher signal levels or a fixed ADC input range and thus a higher possible signal to noise ratio in the presence of significant pileup caused by high positron activity. The higher signal to noise ratio is needed in the PET signal architecture, because of the presence of non-modal time varying electromagnetic fields from the MR, which are a significant source of noise for the wideband PET signal modality.
    • 描述了用于优化用于多模态成像的信号路径的数据处理过程和实施例。 实施例和过程利用双重模式MRI / PET扫描器中的闪烁晶体,雪崩光电二极管和电荷敏感前置放大器在正电子发射断层摄影(PET)信号路径中优化信噪比。 双重使用模拟极零电路和数字滤波器可实现更高的信号电平或固定的ADC输入范围,从而在存在由高正电子活动引起的重大堆积的情况下,可能的信噪比更高。 在PET信号架构中需要更高的信噪比,因为存在来自MR的非模态时变电磁场,这是对于宽带PET信号模态的噪声的重要来源。
    • 6. 发明授权
    • Mitigation of brake failure
    • 制动器故障的缓解
    • US08136184B2
    • 2012-03-20
    • US12121033
    • 2008-05-15
    • James Frank Caruba
    • James Frank Caruba
    • A61G13/02
    • A61B6/105A61B6/586
    • A method and system for mitigations brake failure in a medical device. The method and system includes a motion system for at least one movable load. Each movable load has a drive, a controller for the drive, and a brake. The controller is adapted to monitor positional parameters of the drive or electrical parameters of the brake or a combination of both. The method involves the step of monitoring the parameters and evaluating the parameters to detect a brake failure of the brake.
    • 一种减轻医疗设备制动失效的方法和系统。 该方法和系统包括用于至少一个可移动负载的运动系统。 每个可移动负载都有一个驱动器,一个用于驱动的​​控制器和一个制动器。 控制器适于监测制动器的驱动或电气参数的位置参数或两者的组合。 该方法包括监测参数和评估参数以检测制动器制动故障的步骤。