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    • 1. 发明申请
    • Method and apparatus for measuring signal jitters
    • 用于测量信号抖动的方法和装置
    • US20060126714A1
    • 2006-06-15
    • US11293117
    • 2005-12-05
    • Chun LinHuo ChenRaymond Chen
    • Chun LinHuo ChenRaymond Chen
    • H04B17/00
    • H04L1/205
    • A measuring method for signal jitter comprises the following procedures: First, a first data signal is provided, and the first data signal is deemed equivalent to a second data signal, wherein frequency of the first data signal is a multiple (preferably odd) of that of the second data signal, and at the same time, the ascent and the descent edges of the second data signal are the same as that of the first data signal. The widths of the high and low levels of the second data signal are counted so as to generate an estimated jitter stream including the estimated jitter values of the ascent and the descent edges of the second data signal. Then, jitter distribution diagrams of the ascent and the descent edges are established based on the estimated jitter stream, so as to calculate an eye open (EO) value.
    • 用于信号抖动的测量方法包括以下步骤:首先,提供第一数据信号,并且将第一数据信号视为等同于第二数据信号,其中第一数据信号的频率是该数字信号的倍数(优选奇数) 的第二数据信号,并且同时第二数据信号的上升沿和下降沿与第一数据信号的上升沿和下降沿相同。 对第二数据信号的高电平和低电平的宽度进行计数,以产生包括第二数据信号的上升和下降沿的估计抖动值的估计抖动流。 然后,基于估计的抖动流建立上升沿和下降沿的抖动分布图,以计算眼图(EO)值。
    • 8. 发明授权
    • Pressure relief valves
    • 减压阀
    • US08281804B2
    • 2012-10-09
    • US12169405
    • 2008-07-08
    • Chun LinRoy Ronald Pelfrey
    • Chun LinRoy Ronald Pelfrey
    • F16K21/06
    • F16K17/04F16K15/063Y10T137/7766Y10T137/7768Y10T137/7852Y10T137/7905
    • Pressure relief valves are described herein. An example pressure relief valve includes a body having external threads to threadably engage another body having a pressurized chamber. Additionally, the pressure relief valve includes a relief valve orifice that is threadably engaged with the body via internal threads of the body. The relief valve orifice includes a seating surface. Further, the pressure relief valve includes a pressure-balanced piston assembly that is slidably movable within the body relative to the relief valve orifice and the seating surface to control the flow of fluid between the pressurized chamber and the relief valve orifice.
    • 此处描述了泄压阀。 示例性压力释放阀包括具有外螺纹的主体,该主体螺纹地接合另一具有加压室的主体。 此外,减压阀包括安全阀孔口,其通过主体的内螺纹与主体螺纹接合。 安全阀孔包括座面。 此外,减压阀包括压力平衡的活塞组件,该压力平衡的活塞组件相对于安全阀孔口和就座表面在主体内可滑动地移动,以控制加压室和安全阀孔口之间的流体流动。