THREE-WAY CALL DETECTION USING STEGANOGRAPHY
    2.
    发明申请
    THREE-WAY CALL DETECTION USING STEGANOGRAPHY 审中-公开
    使用STEGANOGRAPHY的三路呼叫检测

    公开(公告)号:WO2005025185A2

    公开(公告)日:2005-03-17

    申请号:PCT/US2004025029

    申请日:2004-08-04

    Inventor: MARTIN THOMAS J

    CPC classification number: H04M1/663 H04M1/665 H04M3/2281 H04M11/062

    Abstract: Three-way call detection is an important component of correctional facility telephone equipment because it helps restrict calling access by certain persons to certain restricted telephone numbers. Various three-way call detection methods exist, but all of these implementations suffer from one major limitation - the detection accuracy is not as high as is desired by the industry. The present invention improves detection accuracy, using "steganography." Steganography involves hiding one set of data or signals within another signal or carrier in such a way that its presence is virtually imperceptible to the end recipient, and potential even the originator of the carrier signal. Television producers use steganographic methods to encode data in video signals for security, distribution monitoring, piracy-control, and other reasons. The present invention involves a device that connects to a telephone, either at the line or handset interfaces, and produces a known signal that is steganographically hidden within the user's normal voice signal. Detection equipment, residing at another location, monitors signals on telephone calls and tests for the presence of the hidden signal or data generated by the invention. Once detection is achieved, appropriate action, such as terminating or recording the call, may be taken. Improved accuracy is achieved by choosing the appropriate hidden signal(s) - ones that never occur in the course of normal conversation and never get generated by telephone company equipment. Once detected, the presence of the signal guarantees the call was made to the restricted party from a particular phone line.

    Abstract translation: 三通呼叫检测是惩教设施电话设备的重要组成部分,因为它有助于限制某些人的呼叫接入某些受限电话号码。 存在各种三路呼叫检测方法,但是所有这些实现都受到一个主要限制 - 检测精度不如业界期望的那么高。 本发明使用“隐写术”来提高检测精度。 隐写术涉及将一组数据或信号隐藏在另一个信号或载体内,使得其存在对于最终接收者实际上是不可察觉的,甚至潜在甚至载波信号的发起者。 电视制作者使用隐写方法对视频信号中的数据进行编码,以进行安全性,分发监控,盗版控制等原因。 本发明涉及一种在线路或手机接口处连接到电话的设备,并且产生隐式地隐藏在用户的正常语音信号内的已知信号。 驻留在另一位置的检测设备通过电话监视信号并测试本发明产生的隐藏信号或数据的存在。 一旦检测到,可以采取适当的动作,例如终止或记录呼叫。 通过选择合适的隐藏信号可以提高准确度,这些信号在正常通话过程中永远不会发生,并且永远不会由电话公司的设备产生。 一旦被检测到,信号的存在就保证了从一个特定的电话线路向限制方发出呼叫。

    HIGH PH DISPERSIBLE NANO-ALUMINAS
    5.
    发明申请
    HIGH PH DISPERSIBLE NANO-ALUMINAS 审中-公开
    高分辨率纳米铝

    公开(公告)号:WO2005115917A3

    公开(公告)日:2007-09-13

    申请号:PCT/US2005013681

    申请日:2005-04-21

    Abstract: A process for producing nano sized boehmite aluminas which are stable at alkaline pH values wherein an aqueous medium of a peptized boehmite alumina is treated with a water dispersible polycarboxylic acid polymer and optionally with an organic water dispersible base having a molecular weight ranging from 500 to 3000 and having no more than three basic groupings to produce a treated boehmite alumina which forms a stable sol at a pH of greater than 6, the treated boehmite alumina having a dispersed particle size of less than 500 nm in the sol.

    Abstract translation: 一种制备在碱性pH值下稳定的纳米尺寸勃姆石氧化铝的方法,其中胶溶勃姆石氧化铝的水性介质用水分散性聚羧酸聚合物和任选地分子量范围为500-3000的有机水分散性碱处理 并且具有不超过三个基本组合以产生在大于6的pH下形成稳定的溶胶的经处理的勃姆石氧化铝,所述溶胶中分散粒度小于500nm的经处理的勃姆石氧化铝。

    HIGH PH DISPERSIBLE NANO-ALUMINAS
    6.
    发明申请
    HIGH PH DISPERSIBLE NANO-ALUMINAS 审中-公开
    高分辨率纳米铝

    公开(公告)号:WO2005115917A8

    公开(公告)日:2006-02-02

    申请号:PCT/US2005013681

    申请日:2005-04-21

    Abstract: A process for producing nano sized boehmite aluminas which are stable at alkaline pH values wherein an aqueous medium of a peptized boehmite alumina is treated with a water dispersible polycarboxylic acid polymer and optionally with an organic water dispersible base having a molecular weight ranging from 500 to 3000 and having no more than three basic groupings to produce a treated boehmite alumina which forms a stable sol at a pH of greater than 6, the treated boehmite alumina having a dispersed particle size of less than 500 nm in the sol.

    Abstract translation: 一种制备在碱性pH值下稳定的纳米尺寸勃姆石氧化铝的方法,其中胶溶勃姆石氧化铝的水性介质用水分散性聚羧酸聚合物和任选地分子量范围为500-3000的有机水分散性碱处理 并且具有不超过三个基本组合以产生在大于6的pH下形成稳定的溶胶的经处理的勃姆石氧化铝,所述溶胶中分散粒度小于500nm的经处理的勃姆石氧化铝。

    THREE-WAY CALL DETECTION USING STEGANOGRAPHY

    公开(公告)号:WO2005025185A3

    公开(公告)日:2005-03-17

    申请号:PCT/US2004/025029

    申请日:2004-08-04

    Abstract: The present invention involves a device that connects to a telephone, either at the line or handset interfaces, and produces a known signal that is steganographically hidden within the user’s normal voice signal. Detection equipment, residing at another location, monitors signals on telephone calls and tests for the presence of the hidden signal or data generated by the invention. Once detection is achieved, appropriate action for terminating or recording the call may be taken.

    STABILIZED POLYMER DRAG REDUCING AGENT SLURRIES
    10.
    发明申请
    STABILIZED POLYMER DRAG REDUCING AGENT SLURRIES 审中-公开
    稳定的聚合物减少剂代谢物

    公开(公告)号:WO2007037799A1

    公开(公告)日:2007-04-05

    申请号:PCT/US2006/031251

    申请日:2006-08-10

    CPC classification number: F17D1/17

    Abstract: A method for producing a stabilized polymer drag reducing agent slurry comprising combining a fatty acid wax and a liquid carrier to form a dispersion; pre-treating the dispersion by heating to partially dissolve the fatty acid wax in the liquid carrier; and adding the polymer drag reducing agent thereto, to form a stabilized polymer drag reducing agent slurry. The resulting slurry is relatively stable against settling, separation and agglomeration.

    Abstract translation: 一种制备稳定化的聚合物减阻剂浆料的方法,包括将脂肪酸蜡和液体载体混合以形成分散体; 通过加热预处理分散体以将脂肪酸蜡部分地溶解在液体载体中; 并向其中加入聚合物减阻剂,以形成稳定的聚合物减阻剂浆料。 所得浆料相对于沉降,分离和附聚是相对稳定的。

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