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    • 47. 发明授权
    • Ultrasound imaging method and apparatus with dynamic non-linear filtering
    • 超声成像方法与装置动态非线性滤波
    • US5396285A
    • 1995-03-07
    • US60204
    • 1993-05-07
    • Dave HedbergIsmayil M. GuracarMichael J. TierneyStuart CarpJames W. ArensonSamuel H. Maslak
    • Dave HedbergIsmayil M. GuracarMichael J. TierneyStuart CarpJames W. ArensonSamuel H. Maslak
    • G01N29/06A61B8/14G06T5/20H04N7/18
    • G06T5/20G01N2291/02491
    • Methods and apparatus for enhancing the clarity of and the diagnostic information in real-time B-mode and M-mode ultrasound displays including a beamformer for acquiring ultrasound receive signals for each ultrasound scan line of a two-dimensional image and processing the receive signals for each ultrasound scan line into detected and filtered video signals for storage in scan line acquisition memory with programmable dynamically variable non-linear filters for processing the video signals with continuously and automatically varying filter responses over a range of low and high pass responses followed by scan converting and display of the non-linearly processed video signals. The non-linear filters may process video signals in range along each ultrasound scan line or azimuthally along multiple ultrasound scan lines of a two-dimensional B-mode image. The non-linear filters also can be two-dimensionally programmable for processing video signals both in range along each ultrasound scan line and azimuthally along multiple ultrasound scan lines over regions of a two-dimensional B-mode image. The non-linear filter may be responsive to a local signal measurement and to spatial positions in a B-mode image for control of filter parameters. The non-linear filter can also be programmable to accommodate variable system characteristics for particular imaging applications.
    • 用于提高实时B模式和M模式超声显示器中的清晰度和诊断信息的方法和装置,包括用于为二维图像的每个超声扫描线获取超声波接收信号的波束形成器,并处理接收信号 每个超声波扫描线进入检测和滤波的视频信号,用于存储在扫描线采集存储器中,具有可编程的动态可变非线性滤波器,用于在低通和高通响应的范围内连续且自动地改变滤波器响应,随后扫描转换 并显示非线性处理的视频信号。 非线性滤波器可以沿着每个超声波扫描线或沿着二维B模式图像的多个超声扫描线的方位角处理视频信号。 非线性滤波器也可以是二维可编程的,用于在沿着每个超声波扫描线的范围内以及在二维B模式图像的区域上沿多个超声扫描线的方位角处理视频信号。 非线性滤波器可以响应于本地信号测量和B模式图像中的空间位置以控制滤波器参数。 非线性滤波器也可以被编程以适应特定成像应用的可变系统特性。
    • 48. 发明授权
    • Micro-electrochemical valves and method
    • 微电化学阀门及方法
    • US5368704A
    • 1994-11-29
    • US103274
    • 1993-08-06
    • Marc J. MadouMichael J. Tierney
    • Marc J. MadouMichael J. Tierney
    • A61M31/00C25F3/00C25F7/00
    • A61M31/002
    • A micromachined valve and valve array having one or more pores which are electrochemically opened and closed by dissolving and redepositing a barrier layer across a tiny opening or pore in substrate. The pore is spanned by two electrodes which apply a voltage to an electrolytic barrier layer material which dissolves in an electrolyte. Each open pore has a distinct flow rate related to its minimal cross-sectional area which together can form a binary sized array with each subsequent member in the array having a flow rate twice as large as the preceding member in the array. Any integral multiple of the smallest flow rate may be achieved by opening an appropriate combination of the pores with addressing logic. In a preferred embodiment, each bit in a binary representation of the desired flow rate acts as a switch for a pore having a flow rate corresponding to the bit position.
    • 具有一个或多个孔的微加工阀和阀阵列,其通过将阻挡层溶解并重新沉积在衬底中的微小开口或孔上而被电化学打开和闭合。 孔被两个电极跨接,这两个电极向溶解在电解质中的电解屏障层材料施加电压。 每个开孔具有与其最小横截面面积相关的不同流速,其一起可以形成二进制尺寸的阵列,阵列中的每个后续构件具有与阵列中的先前构件相同的两倍的流速。 可以通过用寻址逻辑打开孔的适当组合来实现最小流速的任何整数倍。 在优选实施例中,所需流量的二进制表示中的每一位用作具有对应于位位置的流量的孔的开关。
    • 49. 发明授权
    • Microsensors for gaseous and vaporous species
    • 气态和蒸气物种的微量传感器
    • US5304293A
    • 1994-04-19
    • US882459
    • 1992-05-11
    • Michael J. TierneyArvind JinaJose JosephMarc Madou
    • Michael J. TierneyArvind JinaJose JosephMarc Madou
    • G01N27/49G01N27/26
    • G01N27/4045
    • A sensor for gaseous and vaporous species is disclosed. The sensor comprises an electrically insulated substrate which contains small pores passing completely through it. Electrodes consisting of metallic or semiconductor material are deposited onto the top surface of the substrate. In a first embodiment of the invention, an electrolyte is placed on the top surface of the substrate in such a manner as to create a gas or vapor permeable electrolyte layer on top of the electrodes. In a second embodiment of the invention, the electrolyte is applied to the bottom surface of the substrate and seeps up through the porous holes of the substrate until it makes contact with the electrodes. Both embodiments result in a gas sensor with a response time dependent upon the gas flow rate rather than the time required for the gas to be dissolved in the electrolyte layer and be detected.
    • 公开了一种用于气态和气态物质的传感器。 传感器包括一个电绝缘的基底,其中包含完全通过它的小孔。 由金属或半导体材料组成的电极沉积在基板的顶表面上。 在本发明的第一实施例中,电解质以在电极顶部产生气体或透气电解质层的方式被放置在基板的顶表面上。 在本发明的第二实施例中,将电解质施加到基底的底表面,并通过衬底的多孔孔渗透直到其与电极接触。 两个实施例都导致气体传感器具有取决于气体流速的响应时间,而不是气体溶解在电解质层中并被检测所需的时间。