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    • 1. 发明申请
    • Techniques for Phase Detection
    • 相位检测技术
    • US20120218001A1
    • 2012-08-30
    • US13505714
    • 2010-10-31
    • Brian LeibowitzHae-Chang LeeFarshid AryanfarKun-Yung ChangJie Shen
    • Brian LeibowitzHae-Chang LeeFarshid AryanfarKun-Yung ChangJie Shen
    • H03D13/00
    • H03D13/00H03L7/08H03L7/0814H03L7/0816H03L7/085
    • A phase detection circuit can include two phase detectors that each generate a non-zero output in response to input signals being aligned in phase. The input signals are based on two periodic signals. The phase detection circuit subtracts the output signal of one phase detector from the output signal of the other phase detector to generate a signal having a zero value when the periodic signals are in phase. Alternatively, a phase detector generates a phase comparison signal indicative of a phase difference between periodic signals. The phase comparison signal has a non-zero value in response to input signals to the phase detector being aligned in phase. The input signals are based on the periodic signals. An output circuit receives the phase comparison signal and generates an output having a zero value in response to the periodic signals being aligned in phase.
    • 相位检测电路可以包括两个相位检测器,每个相位检测器响应于同相对准的输入信号而产生非零输出。 输入信号基于两个周期信号。 相位检测电路从另一相位检测器的输出信号中减去一相位检测器的输出信号,当周期信号同相时产生具有零值的信号。 或者,相位检测器产生指示周期信号之间的相位差的相位比较信号。 相位比较信号响应于相位检测器的相位输入信号具有非零值。 输入信号基于周期信号。 输出电路接收相位比较信号,并响应于同相对齐的周期信号产生具有零值的输出。
    • 2. 发明申请
    • Bidirectional Memory Interface with Glitch Tolerant Bit Slice Circuits
    • 具有毛刺允许位片电路的双向存储器接口
    • US20100281289A1
    • 2010-11-04
    • US12743075
    • 2008-11-14
    • Kun-Yung ChangJie ShenHae-Chang LeeFariborz AssaderaghiRichard E. PeregoJung-Hoon Chun
    • Kun-Yung ChangJie ShenHae-Chang LeeFariborz AssaderaghiRichard E. PeregoJung-Hoon Chun
    • G06F1/12G06F1/04H03L7/06H03H7/01G06G7/12
    • G06F13/1689
    • A bit slice circuit having transmit and receive modes of operation is described. The bit slice circuit comprises: first transmit circuitry and first receive circuitry operating in a first clock domain, wherein the first circuitry receives a first clock signal; second transmit circuitry and second receive circuitry operating in a second clock domain, wherein the second circuitry receives a second clock signal; transmit transition circuitry and receive transition circuitry, the transmit transition circuitry coupling the first transmit circuitry to the second transmit circuitry, the receive transition circuitry coupling the first receive circuitry to the second receive circuitry, wherein the transition circuitry receives the first and second clock signals; and a single phase mixer that generates the second clock signal, wherein the second clock signal has a first phase in the transmit mode of operation and second phase in the receive mode of operation.
    • 描述了具有发送和接收操作模式的位分片电路。 所述位片电路包括:第一发射电路和在第一时钟域中操作的第一接收电路,其中所述第一电路接收第一时钟信号; 第二发送电路和在第二时钟域中操作的第二接收电路,其中所述第二电路接收第二时钟信号; 发射转换电路和接收转换电路,所述发射转换电路将所述第一发射电路耦合到所述第二发射电路,所述接收转换电路将所述第一接收电路耦合到所述第二接收电路,其中所述转换电路接收所述第一和第二时钟信号; 以及产生所述第二时钟信号的单相混频器,其中所述第二时钟信号具有所述发送操作模式中的第一相位和所述接收操作模式中的第二相位。
    • 8. 发明授权
    • Presenilin-deficient mouse model of age-dependent neurodegeneration and cognitive loss
    • 早老素缺陷小鼠模型的年龄依赖性神经变性和认知损失
    • US07271313B2
    • 2007-09-18
    • US10409672
    • 2003-04-09
    • Jie Shen
    • Jie Shen
    • A01K67/027C12N15/00
    • A01K67/0276A01K2217/075A01K2227/105A01K2267/0312C07K14/4711C12N15/8509C12N2800/30
    • The present invention is directed to recombinantly engineered mice that are deficient in the expression of both presenilin-1 and presenilin-2. The mice exhibit characteristics of age-dependent cognitive impairments and neurodegeneration similar to those seen in Alzheimer's disease patients. This presenilin-deficient mouse model can be used to screen compounds capable of slowing, preventing or reversing the progression of cognitive impairments and neurodegeneration. The invention is also directed to the development of treatments for Alzheimer's disease based on augmentation or restoration of presenilin function in the brain. On the basis of the findings described herein, the invention is further directed to the development of assays to detect functional presenilin deficiency in human individuals, preferably through analysis of presenilin substrates, which may provide biomarkers useful in the diagnosis of Alzheimer's disease.
    • 本发明涉及缺乏早老素-1和早老蛋白-2的表达的重组工程小鼠。 老鼠显示与老年痴呆症患者相似的年龄依赖性认知障碍和神经变性的特征。 这种早老素缺乏型小鼠模型可用于筛选能够减缓,预防或逆转认知障碍和神经退行性进展的化合物。 本发明还涉及基于大脑中早老素功能的增强或恢复的阿尔茨海默病治疗的发展。 基于本文所述的发现,本发明进一步涉及开发用于检测人类个体中功能性早老素缺乏症的测定法,优选通过分析早老素底物,其可以提供可用于诊断阿尔茨海默氏病的生物标志物。