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    • 1. 发明申请
    • Method and apparatus for filtering gas with moving granular filter bed
    • 用移动式颗粒过滤床过滤气体的方法和装置
    • US20050016377A1
    • 2005-01-27
    • US10487130
    • 2002-08-21
    • Robert BrownCorey WistromJerod Smeenk
    • Robert BrownCorey WistromJerod Smeenk
    • B01D46/32B01D46/34
    • B01D50/002B01D46/32B01D46/34
    • A method and apparatus for filtering gas (58) with a moving granular filter bed (48) involves moving a mass of particulate filter material (48) downwardly through a filter compartment (35); tangentially introducing gas into the compartment (54) to move in a cyclonic path downwardly around the moving filter material (48); diverting the cyclonic path (58) to a vertical path (62) to cause the gas to directly interface with the particulate filter material (48); thence causing the gas to move upwardly through the filter material (48) through a screened partition (24, 32) into a static upper compartment (22) of a filter compartment for exodus (56) of the gas which has passed through the particulate filter material (48).
    • 一种用移动的颗粒过滤床(48)过滤气体(58)的方法和装置包括将大量颗粒过滤材料(48)向下移动通过过滤室(35); 切向地将气体引入隔室(54)中以在气旋路径内围绕运动的过滤材料(48)向下运动; 将所述气旋路径(58)转向竖直路径(62)以使所述气体与所述微粒过滤材料(48)直接相接; 从而导致气体向上移动穿过过滤材料(48)通过筛分的隔板(24,32)进入过滤室的静态上部隔室(22),以用于已经通过颗粒过滤器的气体(56) 材料(48)。
    • 9. 发明申请
    • Signal Processing with Fast S-Transforms
    • 信号处理与快速S变换
    • US20100191792A1
    • 2010-07-29
    • US12482237
    • 2009-06-10
    • Robert BrownM. Louis LauzonRichard Frayne
    • Robert BrownM. Louis LauzonRichard Frayne
    • G06F17/14
    • G06F17/148
    • The ability to examine the frequency content of a signal is critical in a variety of fields, and many techniques have been proposed to fill this need, including the Fourier and wavelet family of transforms. One of these, the S-transform, is a Fourier based transform that provides simultaneous time and frequency information similar to the wavelet transform but uses sinusoidal basis functions to produce true frequency and globally referenced phase measurements. It has been shown to be useful in several medical imaging applications but its use is limited due to high computational requirements of the original, continuous form. The described embodiments include a general framework for describing linear time-frequency transforms, using the Fourier, wavelet and S-transforms as examples. As an illustration of the utility of this formalism, a fast discrete S-transform algorithm is developed that has the same computational complexity as the fast Fourier transform.
    • 检查信号的频率内容的能力在各种领域中是至关重要的,并且已经提出了许多技术来满足这种需要,包括傅里叶变换和小波变换族。 其中之一,S变换是基于傅立叶的变换,其提供类似于小波变换的同时时间和频率信息,但是使用正弦基函数来产生真实的频率和全局参考相位测量。 已经显示在几种医学成像应用中是有用的,但是由于原始连续形式的高计算要求,其使用受到限制。 所描述的实施例包括用于描述线性时间 - 频率变换的一般框架,使用傅立叶,小波和S变换作为示例。 作为这种形式主义效用的一个例证,开发了具有与快速傅立叶变换相同计算复杂度的快速离散S变换算法。