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    • 7. 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。
    • 8. 发明申请
    • INTEGRATED CIRCUIT SIMULATION USING ANALOG POWER DOMAIN IN ANALOG BLOCK MIXED SIGNAL
    • 在模拟块混合信号中使用模拟电源域的集成电路仿真
    • US20130338991A1
    • 2013-12-19
    • US13523492
    • 2012-06-14
    • Qingyu LinPrabal Kanti BhattacharyaNan ZhangZhong Fan
    • Qingyu LinPrabal Kanti BhattacharyaNan ZhangZhong Fan
    • G06F17/50
    • G06F17/5081G06F17/5009G06F17/5022G06F17/5036G06F17/5045G06F2217/78Y02E60/76Y04S40/22
    • A method is provided that comprises a circuit design that includes multiple design blocks; a power intent specification file that defines a power domain within the circuit design and that identifies design instances within the power domain and that defines a control function to selectively transition the defined power domain between multiple respective power supply values; using a digital simulator to simulate operation of the digital representation while using an analog simulator to simulate operation of the analog representation; wherein simulating the digital representation includes transitioning the defined power domain between supply values from among the multiple respective supply values; wherein simulating the analog representation includes periodically storing in a storage location a power supply value currently in use during digital simulation of the digital representation; and wherein simulating the analog representation includes using the stored currently in use power supply value to supply voltage to the analog representation.
    • 提供一种包括包括多个设计块的电路设计的方法; 功率意图规范文件,其定义电路设计内的功率域,并且识别功率域内的设计实例,并定义控制功能以选择性地在多个相应电源值之间转换所定义的功率域; 使用数字模拟器来模拟数字表示的操作,同时使用模拟仿真器来模拟模拟表示的操作; 其中模拟所述数字表示包括在所述多个相应电源值中的电源值之间转换所述定义的电源域; 其中模拟所述模拟表示包括在所述数字表示的数字模拟期间周期性地存储在存储位置中当前正在使用的电源值; 并且其中模拟所述模拟表示包括使用所存储的当前使用中的电源值为所述模拟表示提供电压。