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    • 12. 发明公开
    • High-Tc microbridge superconductor device utilizing stepped edge-to-edge sns junction
    • Mikroverbindungsvorrichtung aus Hochtemperatursupraleiter mit gestufter Kante zur Kante SNS Verbindung。
    • EP0496259A1
    • 1992-07-29
    • EP92100564.1
    • 1992-01-15
    • BIOMAGNETIC TECHNOLOGIES, INC.
    • DiIorio, Mark S.Yoshizumi, ShozoYang, Kai-Yueh
    • H01L39/24H01L39/22
    • H01L39/225Y10S505/702Y10S505/731Y10S505/742
    • A microbridge superconductor device includes a substrate (26), made of a material such as LaAlO₃, having a lower planar substrate surface (40), an inclined surface (42) having an overall upward inclination of from about 20 to about 80 degrees from the plane of the lower planar substrate surface (40), and an upper planar substrate surface (44) parallel to the lower planar substrate surface and separated from the lower planar substrate surface by the inclined surface. A layer of a c-axis oriented superconductor material (50), made of a material such as YBa₂Cu₃O 7-x , is epitaxially deposited on the lower planar substrate surface, and has an exposed a-axis edge adjacent the intersection of the lower planar substrate surface with the inclined surface. The a-axis exposed edge is beveled away from the intersection. A layer of a c-axis oriented superconductor material (52) is epitaxially deposited on the upper planar substrate surface, and has an exposed a-axis edge adjacent the inclined surface. A gap (62) lies between the two a-axis exposed edges. A layer of a non-superconductor material (60), such as silver, lies in the gap between the two exposed a-axis edges, thereby defining a SNS superconductor microbridge device. The layers of superconductor material are preferably patterned to form a Josephson junction device such as a superconducting quantum interference device.
    • 微桥超导体器件包括由诸如LaAlO 3的材料制成的具有下平坦衬底表面(40)的衬底(26),倾斜表面(42)具有从所述衬底的整体向上倾斜约20至约80度 下平面状基板表面(40)的平面和平行于下平面基板表面的上平面基板表面(44),并且通过倾斜表面与下平面基板表面分离。 由诸如YBa2Cu3O7-x的材料制成的c轴取向的超导体材料层(50)外延地沉积在下平面基板表面上,并且具有与下平面基板相交的暴露的a轴边缘 表面与倾斜面。 a轴露出的边缘与交点相反。 在上平面基板表面上外延地沉积c轴取向超导体材料(52)的层,并且具有与倾斜表面相邻的暴露的a轴边缘。 间隙(62)位于两个a轴外露边缘之间。 非超导材料(60)如银的层位于两个暴露的a轴边缘之间的间隙中,从而限定SNS超导体微桥装置。 超导体材料层优选地被图案化以形成诸如超导量子干涉装置的约瑟夫逊结装置。
    • 15. 发明公开
    • Analysis of biological signals using data from arrays of sensors
    • 分析冯生物学信号。
    • EP0477434A1
    • 1992-04-01
    • EP90124050.7
    • 1990-12-13
    • BIOMAGNETIC TECHNOLOGIES, INC.
    • Robinson, Stephen E.Black, William C., Jr.
    • A61B5/04G01R33/035H01Q3/26
    • G06K9/0057A61B5/04005A61B5/4064G01R33/035H01Q3/26
    • Signals produced by brain activity are measured by each sensor of an array of magnetic and/or electrical sensors external to but proximate to the head (or other portion of the body) of a subject. The measurements obtained simultaneously from all of the sensors are combined in a manner to permit selective measurement of the electrical activity from a specified location within the body, or alternatively, to permit the location in the body producing a particular type of response to be identified. The instantaneous measurement of each sensor is scaled by a weighting coefficient for that sensor, and the products added over all of the sensors. Preferably, the weighting coefficients are calculated from the covariance matrix of the measurements made by the array of sensors. Alternatively, the weighting coefficients may be calculated from a mathematical model of the portion of the body being measured that includes information on the shape of the potential source, the extent or type of source activity, the electrical and magnetic properties of the media, and the locations and orientations of the sources and the sensors.
    • 通过大脑活动产生的信号由对象头部(或身体的其他部分)外部但接近的磁性和/或电传感器阵列的每个传感器测量。 从所有传感器同时获得的测量结合以允许从身体内的指定位置选择性地测量电活动,或者可选地允许身体中的位置产生特定类型的响应以被识别。 每个传感器的瞬时测量通过该传感器的加权系数进行缩放,并且所有传感器都添加产品。 优选地,根据由传感器阵列进行的测量的协方差矩阵来计算加权系数。 或者,可以根据被测体的部分的数学模型来计算加权系数,该数学模型包括关于潜在源的形状,源活动的程度或类型,介质的电和磁特性的信息,以及 源和传感器的位置和方向。
    • 16. 发明公开
    • Construction of shielded rooms using sealant that prevent electromagnetic and magnetic field leakage
    • 使用密封,其防止电磁和磁场的泄漏的筛选室结构。
    • EP0467179A2
    • 1992-01-22
    • EP91111286.0
    • 1991-07-06
    • BIOMAGNETIC TECHNOLOGIES, INC.
    • Vanesky, Frank W.Buchanan, David S.Marsden, James R.
    • H05K9/00
    • A61B5/04005H05K9/0001Y10T29/49002Y10T29/49004
    • A shielded room is constructed with walls having one shell made of electrically conductive facing sheets that prevent penetration of electromagnetic energy into the room, and two shells made of high magnetic permeability facing sheets that prevent penetration of magnetic fields into the room, one within the electrically conductive sheet and one outside the electrically conductive sheet. The edges of the conductive facing sheets are sealed to each other against leakage of electromagnetic energy with a joint compound made of a mixture of electrically conductive metallic particles in a flowable viscous base that enhances the electrical conductivity across the joint and excludes air from the sealed region. To prevent deterioration, the edges of the high magnetic permeability facing sheets are sealed to each other against leakage of magnetic fields with a joint compound made of a mixture of a high magnetic permeability material in a flowable viscous base that enhances the "magnetic conductivity" of the joint and excludes air from the sealed region.
    • 屏蔽室被构造有具有由导电面对片材的一个壳壁确实防止电磁能量穿透进入房间,和由高磁导率在表面片材的两个壳确实防止磁场渗透到室,一个电内 导电片和一个导电片的外侧。 的导电表面片材的边缘被密封,以抵抗海誓山盟电磁能量的泄漏,在没有可流动的粘性基料由导电金属颗粒的混合物的联合化合物增强跨接头的导电性和从所述密封区域排除空气 , 为了防止劣化,对着片材的高磁导率的边缘被密封,以抵抗海誓山盟磁场的泄漏,在没有可流动的粘性基料由高磁导率材料的混合物的联合化合物增强的“磁导率” 接头并从该密封区域的空气。
    • 19. 发明公开
    • BIOMAGNETOMETER WITH SOLID CONDUCTION COOLING
    • 具有固体传导冷却的生物力学测量仪
    • EP0705440A1
    • 1996-04-10
    • EP94921304.0
    • 1994-06-21
    • BIOMAGNETIC TECHNOLOGIES, INC.
    • BUCHANAN, D., ScottWARDEN, LaurenceRILEY, Scott, W.JOHNSON, Richard, T.BRIMHALL, K., RandyESSER, Keith, A.
    • A61B5G01R33
    • G01R33/0358A61B5/0046A61B5/04005
    • A biomagnetometer includes a magnetic field sensor including a magnetic field pickup coil (210) and a detector (211) of small electrical currents flowing within the pickup coil. A vacuum-tight enclosure (212) surrounds the sensor. The enclosure has a concavely upwardly curved first wall, with the magnetic field pickup coil located adjacent to the first wall. A vented reservoir (220) of liquefied gas is located within the enclosure, and a solid thermal conductor (218) extends from the sensor. There is a vacuum-tight thermal feedthrough by which the solid thermal conductor passes between the interior and the exterior of the enclosure. Electronic circuitry for filtering and amplifying the signals of the detector is also provided. Such a biomagnetometer is placed below the body of a reclining subject, and a second portion of the biomagnetometer can be placed above the body. In one form, the enclosures are shaped to form a cavity that receives the head of the subject therein, to achieve full head coverage of the pickup coils in the biomagnetometer.
    • 生物磁力计包括磁场传感器,该磁场传感器包括在拾取线圈内流动的小电流的磁场拾取线圈(210)和检测器(211)。 真空密封的外壳(212)围绕传感器。 外壳具有向上弯曲的凹形第一壁,其中磁场接收线圈位于第一壁附近。 液化气体的通风储器(220)位于外壳内,并且固体热导体(218)从传感器延伸。 有一个真空密封的热馈通,固体热导体可以通过外壳的内部和外部。 还提供了用于过滤和放大检测器信号的电子电路。 这样的生物磁性计被放置在躺卧对象的身体下方,并且生物磁性计的第二部分可以放置在身体上方。 在一种形式中,外壳被成形为形成腔体,该腔体接收其中的对象的头部,以实现生物磁力计中拾取线圈的完全头部覆盖。