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    Media based collaboration using mixed-mode PSTN and internet networks
    22.
    发明授权
    Media based collaboration using mixed-mode PSTN and internet networks 有权
    使用混合模式PSTN和互联网的基于媒体的协作

    公开(公告)号：US07664056B2

    公开(公告)日：2010-02-16

    申请号：US10796560

    申请日：2004-03-09

    Applicant: Thomas A. Dye ,  Thomas A. Dundon

    Inventor： Thomas A. Dye ,  Thomas A. Dundon

    IPC: H04L12/66

    CPC classification number: H04L65/403 ,  H04L12/1818 ,  H04L12/4641 ,  H04L29/06027 ,  H04L65/1009 ,  H04L65/4038 ,  H04M3/567 ,  H04M3/568 ,  H04M7/009 ,  H04M7/1225 ,  H04M2207/35 ,  H04N7/15

    Abstract: A method which allows standard telephone users to audio conference with video conferencing participants over IP networks in a private secure environment. A dial-out is performed from one or more conference client terminals bridging audio between the Internet and the PSTN networks. The process uses a mixed mode hybrid network architecture for call set-up, initialization and teardown including the method to mix audio at the desktop terminal instead of in a general purpose server as in the prior art. The method conferences video and audio between multiple clients and include audio from a standard telephone network within the conference. A virtual private network connects all of the IP clients together including the voice over IP server used to transcode the proprietary audio into the H.323 standard for transport into the telephony network.

    Abstract translation: 允许标准电话用户在专用安全环境中通过IP网络与视频会议参与者进行音频会议的方法。 从Internet和PSTN网络之间桥接音频的一个或多个会议客户终端执行拨出。 该过程使用混合模式混合网络架构进行呼叫建立，初始化和拆卸，包括在桌面终端而不是现有技术中的通用服务器中混合音频的方法。 方法会议多个客户端之间的视频和音频会议，并包括会议内标准电话网络的音频。 虚拟专用网络将所有IP客户端连接在一起，包括用于将专有音频转码为H.323标准的IP over IP服务器，用于传输到电话网络。

    System, method and computer program product for modeling at least one section of a curve
    23.
    发明授权
    System, method and computer program product for modeling at least one section of a curve 有权
    用于对曲线的至少一个部分进行建模的系统，方法和计算机程序产品

    公开(公告)号：US07333109B2

    公开(公告)日：2008-02-19

    申请号：US10309969

    申请日：2002-12-04

    Applicant: Thomas A. Grandine ,  Thomas A. Hogan

    Inventor： Thomas A. Grandine ,  Thomas A. Hogan

    IPC: G06T11/20 ,  G06F19/00

    CPC classification number: G06T11/203

    Abstract: A system, method and computer program product are provided for modeling at least one section of a curve. Each section can be modeled by initially providing a pair of positions (fi, fi+1) of the section of the curve including associated directions (di, di+1) and curvatures (κi, κi+1). Then, points b0, b1, b2, b3 and b4 can be identified based upon the pair of positions (fi, fi+1) and associated directions (di, di+1) and curvatures (κi, κi+1). Thereafter, a quartic interpolant p(t) can be determined over an interval (i≦t≦i+1) based upon points b0, b1, b2, b3 and b4 to thereby model the section of the curve. The quartic interpolant can be determined such that the interpolant p(t) has a position, direction and curvature equal to fi, di and κi, respectively, at t=i, and the interpolant p(t) has a position, direction and curvature equal to fi+1, di+1, and κi+1, respectively, at t=i+1.

    Abstract translation: 提供了用于对曲线的至少一个部分进行建模的系统，方法和计算机程序产品。 每个部分可以通过初始提供包括相关联的方向（d i）的曲线的部分的一对位置（f i，i，i，i， （i + 1）和曲率（kappa，i，i，i + 1）。 然后，点b 0，b 1，b 2，b 3 3和b 4， 可以基于一对位置（f i，i，i，i + 1）和相关联的方向（d i，i， SUB＆gt; i + 1＆gt;）和曲率（kappa，i，i + 1）。 此后，可以基于点b 0，b 1，b 2的区间（i <= t i = 1 + 1）来确定四次内插器p（t） 2＆lt; 2＆gt;，b 3＆lt; 3＆gt;和b 4＆gt;之间，从而对曲线的部分进行建模。 可以确定四次内插器，使得内插器p（t）具有等于f i，i i，i i的位置，方向和曲率， SUB>，在t = i，并且内插p（t）具有等于f 1 i + 1，i i + 1的位置，方向和曲率， 和kappa i + 1分别在t = i + 1。

    Contamination capacitance probe system
    24.
    发明授权
    Contamination capacitance probe system 失效
    污染电容探头系统

    公开(公告)号：US5125265A

    公开(公告)日：1992-06-30

    申请号：US594537

    申请日：1990-10-09

    Applicant: Thomas A. O'Connell ,  Thomas A. Frank

    Inventor： Thomas A. O'Connell ,  Thomas A. Frank

    IPC: G01N27/22

    CPC classification number: G01N27/223 ,  G01N27/221

    Abstract: A contamination capacitance probe system is disclosed that capacitively mtors whether or not two or more fluids or materials that have to remain separated have been mixed or mingled and that provides first and second control signals respectively representative of the unmingled and mingled conditions. The system includes a capacitance sensor constituted by spaced-apart first and second capacitor plates of preselected size and spacing. The plate size and spacing is selected to render negligible any effect that the different materials or fluids or materials might have on the capacitance of the sensor. Circuit means are disclosed that includes a capacitance to frequency convertor, a frequency to voltage convertor, and a Schmidt trigger operative to provide the first and second control signals. The contamination capacitance probe system of the present invention is operable with any two or more fluids or materials having different dielectric constants and that are either immiscible or miscible.

    Abstract translation: 公开了一种污染电容探针系统，其电容监测必须保持分离的两种或更多种流体或材料是否已经混合或混合，并且提供分别代表未混合和混合状态的第一和第二控制信号。 该系统包括由预定尺寸和间隔的间隔开的第一和第二电容器板构成的电容传感器。 选择板尺寸和间距可以忽略不同材料或流体或材料对传感器电容可能产生的任何影响。 公开了电路装置，其包括电容到变频器，频率到电压转换器和施密特触发器，用于提供第一和第二控制信号。 本发明的污染电容探针系统可与具有不同介电常数的任何两种或多种流体或材料一起使用，并且是不混溶的或可混溶的。

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